Oregon Research: Projects, Research Publications, Presentations, Thesis and Dissertations, Technical Publications

Oregon Research Activities

Projects

Project	Completion Date
Intra-guild predator dynamics: the effects of recolonizing gray wolf populations on cougars in northeast Oregon.	June 2019	Since the reintroduction of wolves in Idaho, Montana, and Wyoming in 1996, recovering wolf populations have expanded their distributions into Oregon, and other western states where they have largely be extirpated (since 1940's in Oregon). Consistent wolf sign was observed in northeastern Oregon in 2006 and now 8-10 packs exist in this region. Since near extirpation of cougars in Oregon in the 1960's, cougar populations have now recovered to stable levels throughout the state and their ecology and population dynamics prior to the arrival of wolves is well studied. The recolonization of wolves into Oregon raises important questions regarding their impacts on prey populations (deer and elk), livestock depredation, and interspecific competition with cougars.<br><br>Within this context, we will address the following objectives:<br>1) Determine prey selection of wolves in multiple packs in Oregon where prey availability differs among packs.<br>2) Determine effects of presence of wolf pack(s) on population dynamics and habitat use of cougars in the Mt. Emily Wildlife Management Unit. <br>3) Evaluate factors which may influence elk and deer populations in a mixed carnivore system with wolves.	Since the reintroduction of wolves in Idaho, Montana, and Wyoming in 1996, recovering wolf populations have expanded their distributions into Oregon, and other western states where they have largely been extirpated (since 1940's in Oregon). Consistent wolf sign was observed in northeastern Oregon in 2006 and now 8-10 packs exist in this region. Since near extirpation of cougars in Oregon in the 1960's, cougar populations have now recovered to stable levels throughout the state and their ecology and population dynamics prior to the arrival of wolves is well studied. The recolonization of wolves into Oregon raises important questions regarding their impacts on prey populations (deer and elk), livestock depredation, and interspecific competition with cougars. Within this context, and in collaboration with Oregon Department of Fish and Wildlife this study will investigate prey selection of co-occurring wolves and cougars, and the impact of wolves on the demographics, habitat use, and movement patterns of cougar. The results from this study will provide information that will aide in the management of these two large carnivores in Oregon.
Developing Non-Invasive Methods to Monitor Burrow-nesting Seabird Populations	January 2017	We will develop, test, and validate multiple new, efficient, and minimally invasive techniques to monitor populations of a representative burrow-nesting seabird, Leach's Storm-petrel, and to generate and compare new indices to traditional methods of determining burrow occupancy. Specifically, we will use upward viewing remote cameras and acoustic recorders to generate indices of activity (abundance) within plots where concurrent traditional surveys of audio playback, burrow camera, and grubbing will also occur.	None
Conservation of the Critically Endangered Chinese Crested Tern: Restoration of a Lost Breeding Colony	March 2019	In the latter half of the 20th Century, Chinese Crested Terns (Sterna bernsteini) were presumed to be extinct, with no documented observations after 1937. In 2000, however, Chinese Crested Terns were rediscovered nesting in the Matzu Islands of the Taiwan Strait. Subsequent surveys by Chinese ornithologists revealed an additional breeding site in the Jiushan Islands of Xiangshan County, Zhejiang Province. Human disturbance – fisherman collecting eggs - later caused the abandonment of this colony. Despite their recent rediscovery, Chinese Crested Terns are still considered one of the most endangered seabird species in the world and one of the most critically endangered vertebrate species. Recovery of this species is possible, however, if nesting habitat can be established and protected. The goal of this project is to restore the Chinese Crested Tern to the Jiushan Islands, using techniques of social attraction and colony monitoring successfully applied to seabird restoration projects throughout the world. The specific proposal to the Wildlife Without Borders program was to fund the manufacture of Chinese Crested Tern decoys and solar-powered audio playback systems to play recordings of Chinese Crested Tern calls. Terns are highly gregarious colonial-nesting species which can be attracted to sites with suitable nesting habitat using decoys and recorded calls. This equipment would play an important role in the effort to restore Chinese Crested Terns to a former nesting area. The restoration project is a collaborative effort of several Chinese and American institutions (Xiangshan County Marine and Fishery Bureau, Zhejiang Natural History Museum, Oregon State University, and the U.S. Geological Survey – Oregon Cooperative Fish and Wildlife Research Unit). Support from the U.S. Fish and Wildlife Service Wildlife Without Borders program has furthered this international collaboration to save one of the world’s most critically endangered animals.	Chinese Crested Terns are likely the most endangered seabird species in eastern Asia, and a flagship species for seabird conservation in China. The estimated global population of breeding adult Chinese Crested Terns is barely 100. The main threats to the species are illegal egg harvest and the increasing intensity and frequency of typhoons in the East China Sea. This restoration project seeks to establish a dispersed network of safe, protected breeding colony sites for the common colony associate species for Chinese Crested Terns, the Greater Crested Tern, as a means to provide nesting habitat and enhance reproductive success of Chinese Crested Terns. The project is a collaboration since 2010 with the Zhejiang Museum of Natural History, Hangzhou, PR China, and a variety of bird conservation NGOs in China. The research project seeks to identify those factors currently limiting the reproductive success and population size of Chinese Crested Terns, their migratory routes, and over-wintering range using a combination of satellite telemetry and field readable leg band technologies.
Monitor and Evaluate Caspian Terns and their Impacts on the Survival of Juvenile Salmonids in the Columbia River Estuary	November 2015	This project is a continuation of previously funded work in 2008 through 2012 that investigated the nesting ecology and food habits of Caspian terns at prospective Corps-constructed Caspian tern sites in interior Oregon and northeastern California to assess the potential impacts of new or larger tern colonies on local stocks of forage fishes, particularly fish species of special concern (e.g., juvenile salmonids, Warner suckers, shortnose suckers, Lost River suckers; BRNW 2009, 2010, 2011, 2012, 2013). This study is important for evaluating the efficacy of the Caspian Tern Management Plan in reducing predation on Columbia Basin salmonids and for evaluating impacts to ESA-listed fish outside the Basin.	None
Develop Baseline Information on Double-crested Cormorants Relative to Their Impacts on Survival of Salmonid Smolts in the Columbia River Estuary	September 2015	AVS-P-08-02 is a continuation of previously funded work in 2008 through 2012 that investigated the nesting ecology, food habits, and predation rates on juvenile salmonids by double-crested cormorants nesting at the colony on East Sand Island in the Columbia River estuary. During the 2011 and 2012 contract years, research on the feasibility of methods for limiting or reducing the size of the double-crested cormorant colony on East Sand Island was conducted.	None
Mapping Physical Characteristics of the Columbia River Mouth Using Transmittered Diving Waterbirds	December 2015	We propose to use two species of diving waterbirds, double-crested cormorants and Brandt’s cormorants (Phalacrocorax auritus and P. penicillatus), as sampling platforms to map a variety of physical characteristics at the mouth of the Columbia River (MCR; e.g., temperature, conductivity, depth, and bedform morphology). This work would enhance the physical characterization at the MCR, which is a primary objective of the RIVIT II DRI, and expand on the animal-based sampling that the RIVIT II DRI has previously supported. The study would leverage off of our telemetry and other research experience with cormorants and other waterbirds at the MCR.	None
Evaluation of Caspian tern management to reduce predation on ESA-listed salmonids in the Columbia Plateau region	March 2019	This study is designed to evaluate the foraging behavior and colony connectivity of Caspian terns (Hydroprogne caspia) nesting on Goose Island in Potholes Reservoir, with particular emphasis on predation by terns from this colony on ESA-listed juvenile salmonids (Oncorhynchus spp.) from the upper Columbia River.	Caspian terns nesting at the two largest breeding colonies for the species on the Columbia Plateau have been shown to cause significant mortality to out-migrating juvenile salmonids in the Columbia and Snake rivers.
Demographics and habitat use of Greater Sage-Grouse in wildfire-affected habitats in Oregon.	June 2025	Southeast Oregon contains part of one of the largest contiguous sage-brush steppe habitats remaining within the extant range of greater sage-grouse. During the summer of 2012, several large wildfires included more than 1 million acres of Oregon sage-grouse habitat within their perimeters. In collaboration with Oregon Department of Fish and Wildlife we designed a long-term study to evaluate acute (short-term) and chronic (long-term) effects of large-scale wildfire on female greater sage-grouse demographics and habitat use and selection. Accomplishing these objectives will inform the prioritization of areas for post-fire habitat rehabilitation and restoration, and help identify areas requiring further protection and/or active management to reduce risk of wildfire and ensure sage-grouse population persistence.	Southeast Oregon contains part of one of the largest contiguous sage-brush steppe habitats remaining within the extant range of greater sage-grouse. During the summer of 2012, several large wildfires included more than 1 million acres of Oregon sage-grouse habitat within their perimeters. In collaboration with Oregon Department of Fish and Wildlife we designed a long-term study to evaluate acute (short-term) and chronic (long-term) effects of large-scale wildfire on female greater sage-grouse demographics and habitat use and selection. Accomplishing these objectives will inform the prioritization of areas for post-fire habitat rehabilitation and restoration, and help identify areas requiring further protection and/or active management to reduce risk of wildfire and ensure sage-grouse population persistence.
Survival rates and causes of mortality for black-tailed deer and mule deer in Oregon.	June 2015	Both black-tailed deer and mule deer provide important hunting opportunities and associated economic benefits to the state of Oregon. Perceived declines in both species have highlighted the need for a better understanding of the factors affecting population dynamics of these species in Oregon. Long-term data collection on black-tailed deer in southwestern Oregon and mule deer in eastern Oregon has resulted in extensive telemetry data set for a large number of individuals over 6-7 years. This project seeks to analyze these retrospective data to gain a better understanding of the factors influencing survival, home range size and movements of black-tailed deer in southwestern Oregon and mule deer in eastern Oregon.	Both black-tailed deer and mule deer provide important hunting opportunities and associated economic benefits to the state of Oregon. Perceived declines in both species have highlighted the need for a better understanding of the factors affecting population dynamics of these species in Oregon. Long-term data collection on black-tailed deer in southwestern Oregon and mule deer in eastern Oregon by the Oregon Department of Fish and Wildlife has resulted in extensive telemetry data set for a large number of individuals over 6-7 years. In collaboration with ODFW, this project seeks to analyze these retrospective data to gain a better understanding of the factors influencing survival, home range size and movements of black-tailed deer in southwestern Oregon and mule deer in eastern Oregon. Results from these studies will inform management of both species in Oregon.
Understanding the Extent and Severity of Disturbance by Cruise Ships to Kittlitz's Murrelets in Glacier Bay National Park, Alaska	April 2014	Investigates the effects of cruise ship traffic in Glacier Bay National Park on the behavior of Kittlitz's Murrelets, a seabird species proposed for listing under the ESA.	None
Long-term Changes in Marine Bird Populations of Prince William Sound, Alaska	December 2015	Investigates the population trends and changes in seabird community structure that have occurred in Prince William Sound over the last 40 years, including since the Exxon Valdez Oil Spill.	None
Breeding Biology and Nesting Habitat of Kittlitz's Murrelet in Kodiak National Wildlife Refuge, Alaska	October 2012	Investigates the nesting habitat and nesting success of a small seabird species that is experiencing declines throughout its range in Alaska and is proposed for listing under the ESA.	None
Seabird Telemetry Project - BSIERP	March 2013	Project investigates the impact of climate change in the Bering Sea on the foraging ecology and reproductive success of piscivorous colonial seabirds on the Pribilof Island.	None
Evaluate the Impacts of Avian Predation on Salmonid Smolts from the Columbia and Snake Rivers	March 2014	This project focuses on the impact of piscivorous colonial waterbirds that nest in the Columbia Plateau region on the survival of juvenile salmonids out-migrating from the Upper Columbia River and the Snake River.	None
Evaluate Management of Caspian Terns and Develop Baseline Information on Double-crested Cormorants Relative to their Impact on Salmonid Smolts in the Columbia River Estuary	February 2013	This project focuses on investigating the impact of predation by double-crested cormorants nesting in the Columbia River estuary on the survival of ESA-listed salmonids, and monitors the implementation of the Caspian Tern Management Plan for the Columbia River Estuary	None
Avian Predation on Juvenile Salmonids in the Lower Columbia River	January 2019	Long-term research, monitoring, and evaluation project investigating the impact of piscivorous colonial waterbirds on survival of ESA-listed salmonids from the Columbia River basin.	Avian predation on juvenile salmonids has been identified as a limiting factor for restoration of a number of ESA-listed salmonid species in the Columbia River basin. In particular, several species of piscivorous colonial waterbirds, including Caspian terns, double-crested cormorants, California gulls, and ring-billed gulls, have been found to consume more than 2% of out-migrating smolts in some listed populations. The research, monitoring, and evaluation funded by this project is intended to quantify the magnitude of smolt losses to avian predators, design and in some cases implement management actions, when warranted, to reduce avian predation rates on ESA-listed salmonids, and evaluate the efficacy of management actions for enhancing survival of juvenile salmonids. The RM&E that is part of this project is supported by the Bonneville Power Administration, the Northwest Power and Conservation Council, the U.S. Army Corps of Engineers, NOAA Fisheries, and the U.S. Fish and Wildlife Service. The research results from this project have been used to design and implement three different management plans to reduce avian predation rates on Columbia Basin salmonid smolts, including two management plans in the Columbia River estuary and one in the Columbia Plateau region. These management plans have substantially reduced predation rates by Caspian terns and double-crested cormorants on some populations of Columbia Basin salmonids.
Structured Decision Making for Brown Bears on National Park Service Lands in Alaska: Integration of Monitoring to Inform Management	December 2013	Brown bears, or grizzlies (Ursus arctos horribilis), are widely distributed, abundant, and their management is of interest throughout much of their Alaskan range. Brown bears are regulated as a game species by the Alaska Department of Fish and Game (ADFG) and occur in large numbers on lands managed by the National Park Service (NPS). Depending on the status of the park, NPS involvement in bear management ranges from regulating access to full involvement with ADFG in regulating harvest. By its nature, this problem involves tradeoffs between competing interests (sport hunting, subsistence hunting, and potential release of ungulates from predation) with other values such as wildlife viewing, with uncertainty about the impacts of harvest activities and human encroachment from mining and other activities on these respective values. Thus, NPS and ADFG managers face difficult decisions in establishing a balance between these conflicting needs. To aid the decision-making process, we propose to build decision-support models consisting of relationships among management actions, sources of uncertainty, and potential outcomes. Because existing knowledge of the dynamics of bear populations is imperfect, the models will allow for the formal incorporation of inventory and monitoring data to reduce uncertainty and improve the understanding of the dynamics of bear populations and future decision-making.	None
The Development of an Adaptive, Decision-Support Tool for the Conservation and Recovery of Least Chub, Iotichthys phlegethontis	December 2013	The least chub, Iotichthys phlegethontis, is a small endemic fish species native to Bonneville Basin, Utah. The species was reportedly common in the beginning of the 20th century and was found in streams, freshwater ponds, wetlands, and springs throughout the Great Basin. However, the species began to decline mid-century and has continued to decline for the last two decades. Currently, five wild populations of the species exist. Reasons for the species decline are varied and include: habitat loss and degradation due livestock, energy exploration and development, and groundwater withdrawal; interactions with nonnative species; and isolation and fragmentation of extant populations. To reverse the declines, natural resource managers need explicit tools to identify the most effective conservation strategies. . The goal of this project is to develop decision support tools for assisting biologists to manage the least chub.	None
Assessment of salmonid habitat improvements associated with structure placement in Wolf Creek	June 2025	The Wolf Creek watershed, a key tributary to the Umpqua River, is a recognized area of conservation concern that supports significant habitat for fish and wildlife. Major restoration efforts were conducted between 2008 and 2012 to benefit salmonids and other conservation-reliant species. Despite extensive monitoring through the U.S. Forest Service’s Aquatic and Riparian Effectiveness Monitoring Program (AREMP) and Oregon Department of Fish and Wildlife’s Aquatic Inventories Program (AQI), substantial gaps remain regarding the effectiveness of these restoration actions. To address this issue, we will analyze nearly 17 years of in-stream monitoring data collected in the Wolf Creek watershed. Our research will leverage AREMP and AQI data to investigate the effects of large wood and boulder weir placements on habitat features and how these changes correlate with the rearing capacity and abundance of target salmonid species. By comprehensively analyzing these high-quality monitoring data, this project will enhance our understanding of the long-term impacts of widely used stream restoration techniques and will inform private and public land management strategies. Furthermore, our findings will facilitate advancements in stream restoration practices throughout the Umpqua River basin and across Oregon.	None
Forecasting tools to inform the management of native fishes and their habitats in a drought sensitive endorheic basin	July 2027	Climate change poses a significant threat to desert ecosystems and their aquatic habitats. In the western United States, severe droughts, reduced snowpack, rising temperatures, and the increased frequency and intensity of wildfires are rapidly altering streams and wetlands. As a result, the availability of water and habitat quality are becoming critical concerns for the fish and wildlife that inhabit these environments. While managers are planning for climate change, they often lack the necessary information to inform effective management strategies, as high desert aquatic ecosystems are frequently understudied. To address this critical knowledge gap, we are conducting a comprehensive study of fish species and their stream habitats in the Goose Lake Basin in southern Oregon. This basin is a terminal lake system, meaning that water availability is particularly limited. As drought conditions worsen, habitat quality and the movement of native species—including trout, lamprey, and minnows—are likely to be further restricted, especially during the hot summer months when they rely on cool freshwater sources. To enhance our understanding of how climate change impacts habitat quality for these native fish, we are employing stable isotopes to evaluate stream habitat connectivity and flow provenance under varying seasonal and environmental conditions. This data will be integrated with existing fish abundance and water temperature information (from project A7) to model where native and non-native fish are likely to thrive under different climate change scenarios. The outcomes of this project will provide vital information for our partners, enabling them to identify ideal habitats for restoration and enhancement. This will support climate-informed management and decision-making related to species and habitat conservation, ensuring that we can effectively safeguard these vulnerable aquatic ecosystems in the face of ongoing climate challenges.	None
Climate vulnerability assessment of Oregon hatchery programs	December 2024	Oregon Department of Fish and Wildlife operates 33 hatchery facilities in Oregon, including 14 state-owned facilities that produce fish for over 70 salmon and steelhead hatchery programs. These facilities play a key role in supporting both recreational and commercial fisheries by releasing millions of salmon, steelhead, and resident trout into waterbodies statewide. However, climate change poses increasing challenges to these operations, with rising stream temperatures, higher disease incidence, decreasing stream flows, and reduced ocean survival impacting the ability of hatchery programs to meet critical fishery and conservation goals. The goal of this project was to assess the climate vulnerability of a sample of hatchery programs across Oregon, representing different geographic areas, species, and management units. By analyzing each program’s susceptibility to climate-related risks, this assessment was able to determine which programs are most likely to be affected by climate change, and to identify strategies for enhancing resilience across facilities. The findings from this project will be shared with the Oregon State Legislature as part of an independent assessment covering the operations, sustainability, and climate risks of state-owned fish hatcheries. The final report, slated for presentation to the Joint Committee on Ways and Means during the 2025 legislative session, will provide key insights to directly inform state-level policy and funding decisions on hatchery management, ensuring the long-term sustainability and effectiveness of these essential programs.	None
Elucidating the practice of interdisciplinary and actionable science	June 2025	This project addresses three research questions: (1) What skills and abilities (including specific behaviors, cognitive habits and emotional approaches) are helpful and/or necessary to do user- focused applied science, particularly in collaborative and/or interdisciplinary settings? (2) How did scientists currently using user-focused applied science, transdisciplinary, and team science approaches develop the skills and abilities upon which they currently rely? (3) How can scientific organizations and teams build scientists’ capacity to do user-focused applied science, transdisciplinary research, and/or team science?	This project addresses three research questions: (1) What skills and abilities (including specific behaviors, cognitive habits and emotional approaches) are helpful and/or necessary to do user- focused applied science, particularly in collaborative and/or interdisciplinary settings? (2) How did scientists currently using user-focused applied science, transdisciplinary, and team science approaches develop the skills and abilities upon which they currently rely? (3) How can scientific organizations and teams build scientists’ capacity to do user-focused applied science, transdisciplinary research, and/or team science?<br>
Institutionalizing inclusion in the USFWS: a research study	June 2026	As the federal agency responsible for fish and wildlife conservation in the United States, the US Fish and Wildlife Service (USFWS) is at the heart of this evolution of the conservation sector. In recent years, USFWS staff have engaged in a variety of internal efforts to prioritize supporting a diverse workforce. However, there has yet to be a concerted cross-program assessment that captures the voices of agency staff to understand their narratives on how the Service is reconceptualizing conservation, or how these efforts are—or are not—moving the needle towards the goal of a more inclusive agency who reflects the multiple values of the American public. To aid the agency in their assessment of these efforts, our main project objectives are to: (1) To conduct a discourse analysis of conservation narratives in the USFWS that might include or exclude conservationists from historically underrepresented and underserved groups. (2) To understand how efforts to recruit and retain staff from historically unrepresented groups can scale up across multiple initiatives and programs to create organizational change.	As the federal agency responsible for fish and wildlife conservation in the United States, the US Fish and Wildlife Service (USFWS) is at the heart of this evolution of the conservation sector. In recent years, USFWS staff have engaged in a variety of internal efforts to prioritize supporting a diverse workforce. However, there has yet to be a concerted cross-program assessment that captures the voices of agency staff to understand their narratives on how the Service is reconceptualizing conservation, or how these efforts are—or are not—moving the needle towards the goal of a more inclusive agency who reflects the multiple values of the American public. To aid the agency in their assessment of these efforts, our main project objectives are to: (1) To conduct a discourse analysis of conservation narratives in the USFWS that might include or exclude conservationists from historically underrepresented and underserved groups. (2) To understand how efforts to recruit and retain staff from historically unrepresented groups can scale up across multiple initiatives and programs to create organizational change.<br>
Tribal and non-Tribal public perceptions of Oregon hatcheries for future hatcheries outreach and engagement	June 2025	This project comprises a rigorous human dimensions study of public perceptions of salmonid hatcheries, with a focus on two primary audiences: Tribal communities, including Tribal fishermen, and non-Tribal fishing communities, including anglers, guides, commercial fishermen, and their families. The primary research methods will be interviews, workshops, and Traditional Ecological Knowledge methods.	This project comprises a rigorous human dimensions study of public perceptions of salmonid hatcheries, with a focus on two primary audiences: Tribal communities, including Tribal fishermen, and non-Tribal fishing communities, including anglers, guides, commercial fishermen, and their families. The primary research methods will be interviews, workshops, and Traditional Ecological Knowledge methods.<br>
Examining public perceptions of ocean acidification	June 2025	This project will explore the effect of ocean awareness on the climate actions and climate adaptation policy preferences of coastal visitors. We will use a two-pronged research approach combining 1) an online representative survey of Oregon residents and 2) visitor intercept surveys of visitors to the Oregon coast. In the first research phase we will identify the degree to which a) climate action behavior and behavioral intentions and b) climate adaptation policy support are related to beliefs about ocean acidification and feelings of connectedness to the Oregon coast and, more specifically, the Oregon Marine Reserves. We will use these results to inform the second research phase, in which we will assess the salience of ocean acidification and climate adaptation needs among coastal visitors, and test the impact of different climate nudges on coastal visitors’ future climate action. Results from this research will inform Oregon Marine Reserves Program and other ODFW communication strategies related to coastal and marine ecosystems, including climate adaptation.	This project will explore the effect of ocean awareness on the climate actions and climate adaptation policy preferences of coastal visitors. We will use a two-pronged research approach combining 1) an online representative survey of Oregon residents and 2) visitor intercept surveys of visitors to the Oregon coast. In the first research phase we will identify the degree to which a) climate action behavior and behavioral intentions and b) climate adaptation policy support are related to beliefs about ocean acidification and feelings of connectedness to the Oregon coast and, more specifically, the Oregon Marine Reserves. We will use these results to inform the second research phase, in which we will assess the salience of ocean acidification and climate adaptation needs among coastal visitors, and test the impact of different climate nudges on coastal visitors’ future climate action. Results from this research will inform Oregon Marine Reserves Program and other ODFW communication strategies related to coastal and marine ecosystems, including climate adaptation.
Investigating practitioner organization communication with landowners about human-beaver coexistence	June 2025	Beavers are landscape engineers. They create habitat for other species, and change the landscape in ways that often help buffer ecosystems and people from the damaging effects of climate change, including drought, flood, and wildfire risks. In part because of these benefits, there is a movement to restore beaver and beaver-modified habitat on the landscape in Oregon. However, beavers can also be controversial because of the damage they can cause to human structures and crops. As such, beavers are a useful case study for how to equitably engage Oregonians in wildlife habitat restoration efforts while simultaneously mitigating human-wildlife conflict and promoting coexistence. In situations like these, social science can support engagement programs that are a) tailored to key audiences’ needs, b) coordinated across organizations and agencies, and c) targeted at the specific moment when action is taken. However, this kind of participatory evidence-based approach to behavioral design has not yet been applied to human-beaver coexistence in Oregon. We propose to answer the question: How can private landowners be supported to take coexistence actions that are mutually beneficial for their needs and beaver populations in Oregon? We will assemble a community of practice comprising groups that work with private landowners on two dimensions of coexistence in Oregon: human-beaver conflict management and beaver-modified habitat restoration. Together, we will identify a) best practices for landowner engagement (both tried and true strategies and creative new approaches), b) pinch points limiting landowner engagement, and c) opportunities to coordinate future outreach and engagement campaigns. We will use social science methods to execute this project, combining baseline and follow-up interviews, facilitated workshops, and pre-post social network analysis. Results and lessons learned from this project will be shared with ODFW, the community of practice, other stakeholders and rightsholders, and the broader conservation science community to catalyze wider discussion and adoption of human-beaver coexistence strategies, and guide strategic implementation of ODFW’s Beaver Habitat Action Plan in the future.<br>	Beavers are landscape engineers. They create habitat for other species, and change the landscape in ways that often help buffer ecosystems and people from the damaging effects of climate change, including drought, flood, and wildfire risks. In part because of these benefits, there is a movement to restore beaver and beaver-modified habitat on the landscape in Oregon. However, beavers can also be controversial because of the damage they can cause to human structures and crops. As such, beavers are a useful case study for how to equitably engage Oregonians in wildlife habitat restoration efforts while simultaneously mitigating human-wildlife conflict and promoting coexistence. In situations like these, social science can support engagement programs that are a) tailored to key audiences’ needs, b) coordinated across organizations and agencies, and c) targeted at the specific moment when action is taken. However, this kind of participatory evidence-based approach to behavioral design has not yet been applied to human-beaver coexistence in Oregon. We propose to answer the question: How can private landowners be supported to take coexistence actions that are mutually beneficial for their needs and beaver populations in Oregon? We will assemble a community of practice comprising groups that work with private landowners on two dimensions of coexistence in Oregon: human-beaver conflict management and beaver-modified habitat restoration. Together, we will identify a) best practices for landowner engagement (both tried and true strategies and creative new approaches), b) pinch points limiting landowner engagement, and c) opportunities to coordinate future outreach and engagement campaigns. We will use social science methods to execute this project, combining baseline and follow-up interviews, facilitated workshops, and pre-post social network analysis. Results and lessons learned from this project will be shared with ODFW, the community of practice, other stakeholders and rightsholders, and the broader conservation science community to catalyze wider discussion and adoption of human-beaver coexistence strategies, and guide strategic implementation of ODFW’s Beaver Habitat Action Plan in the future.<br>
Using restoration monitoring data to inform an H-integrated Chinook salmon recovery strategy	June 2026	The recovery of Chinook salmon and other vital salmon species in Puget Sound is lagging despite unprecedented habitat restoration efforts. This shortfall is attributed to cumulative stressors, often encapsulated in the “four Hs”: habitat loss, hydropower, hatchery production, and harvest. Addressing these interconnected challenges is crucial for effective salmon management and recovery. To tackle this issue, we will use an “H-Integrated approach” that considers how restoration efforts interact with these four Hs. Our project, in collaboration with the Nisqually Indian Tribe and the U.S. Geological Survey, will derive spatially explicit carrying capacity estimates for the Nisqually River Delta, informing both wild Chinook recovery goals and hatchery management strategies. Additionally, we will employ Integrated Population Models to estimate Chinook salmon survival rates and assess the duration of the Tribal fishing season under various management and climate change scenarios. The outcomes of this research will support the sustainable management of salmon populations and their habitats, enabling habitat managers from the Tribe and throughout Puget Sound to implement targeted restoration actions that enhance resilience in the face of climate change. By identifying strategies that mitigate negative interactions among salmon species, we aim to bolster both ecological integrity and cultural resources associated with salmon fisheries.	Estuarine habitat restoration plays a crucial role in providing quality nursery habitat for out-migrating juvenile salmon; however, habitat loss is just one of many cumulative stressors that are contributing to salmon decline (often referred to as the “four Hs”). Habitat managers can maximize restoration efficiency and effectiveness if they account for how restoration actions will interact with other factors, for example: How will hydropower-related modifications in sediment regimes impact the restoration area’s functional value as salmon habitat? Will the restoration area play a role in mitigating potentially negative effects of hatchery salmon? What effect could the restoration have on the number of returning adult salmon and commercial, recreational, and tribal harvest rates? Put simply, H-Integration is a concerted effort to account for all H-factors when pursuing the goal of a self-sustaining, harvestable salmon run. This goal of this project is to demonstrate how managers can use an H-integrated approach to maximize the efficiency and effectiveness of restoration. We believe that an H-Integrated approach can maximize the efficiency and effectiveness of ongoing and future restoration projects. This is because it allows managers to identify restoration actions that are most likely to mitigate negative interactions between different species and stocks of salmon, bolster harvest rates, and maintain habitat function in the face of climate change and shifts in hydropower-mediated sediment delivery regimes.
Black-tailed deer use of winter range in southern Oregon	June 2025	Oregon Department of Fish and Wildlife (ODFW) manages Black-tailed Deer (BTD) populations through evaluation of trend indices, primarily spotlight route and hunter harvest data. In recent years, BTD spotlight survey data suggest populations are declining across the state, but numbers are generally higher near residential/urban locations than beyond the urban growth boundary. When survey data from residential/urban areas is combined with data from public land, deer density estimates (deer/mile) are often inflated. Thus, deer populations from urban areas are impacting overall population counts on which hunting tag allocations are based, yet most residential/urban deer are likely not available for harvest. In collaboration with ODFW, this project was designed to address several questions of management concern for BTD in southern Oregon, including an increased understanding of habitat use, spatial and temporal migration behavior, habitat characteristics of migration corridors and winter range areas, and seasonal and annual survival rates. These data will aid in the development of hunting regulations, management of migrating BTD and their habitat, and provide resources for management biologists faced with urban development of BTD winter ranges in Oregon.	Oregon Department of Fish and Wildlife (ODFW) manages Black-tailed Deer (BTD) populations through evaluation of trend indices, primarily spotlight route and hunter harvest data. In recent years BTD appear to be declining across the state, but population numbers are higher near residential/urban locations than beyond the urban growth boundary. When survey data from residential/urban areas is combined with data from public land, deer density estimates are often inflated. Thus, deer populations from urban areas are impacting overall population counts on which hunting tag allocations are based, yet most residential/urban deer are likely not available for harvest. In collaboration with ODFW, this project was designed to address several questions of management concern for BTD in southern Oregon, including an increased understanding of habitat use, spatial and temporal migration behavior, habitat characteristics of migration corridors and winter range areas, and seasonal and annual survival rates. These data will aid in the development of hunting regulations, management of migrating BTD and their habitat, and provide resources for management biologists faced with urban development of BTD winter ranges in Oregon.
Mapping ungulate migration corridors in Oregon	September 2025	Understanding the costs and benefits of migration, and the location of areas in the landscape where important migration behaviors occur, is critical to sustainable management of ungulate populations that are of high economic value and cultural importance in western states like Oregon. This is particularly important as habitat loss and fragmentation continue to increase in association with human activities and development across ungulate ranges in the west. These landscape changes can disrupt ecosystem function and increase the cost of migration for target populations. The identification and prioritization of migration corridors throughout Oregon would address a critical data gap for the state and facilitate conservation and management of these populations. In collaboration with the Oregon Department of Fish and Wildlife (ODFW) and the USGS, Wyoming Cooperative Fish and Wildlife Research Unit, the following objectives were developed to address these needs for mule deer and pronghorn antelope in Oregon:<br><br>1). Compile all available GPS collar data on migratory and non-migratory mule deer and pronghorn antelope in Oregon and conduct an analysis using Brownian Bridge Movement Models. <br>2). Create cartographic map products of migration corridors, and seasonal ranges for mule deer and pronghorn in Oregon, making associated corridor polygon data available to land and resource managers via a Migration Route Viewer.<br>3). To assist ODFW with the development of cartographic and infographic products to communicate key migration issues, threats, and conservation opportunities within the state.	Understanding the costs and benefits of migration, and the location of areas in the landscape where important migration behaviors occur, is critical to sustainable management of ungulate populations that are of high economic value and cultural importance in western states like Oregon. This is particularly important as habitat loss and fragmentation continue to increase in association with human activities and development across ungulate ranges in the west. In collaboration with Oregon Department of Fish and Wildlife (ODFW) and a USGS team at the Wyoming Cooperative Fish and Wildlife Research Unit a general framework to map ungulate migration routes and identify portions of routes to prioritize for conservation has been developed to use GPS location data in a standardized framework. Landscape changes can disrupt ecosystem function and increase the cost of migration for target ungulate populations. The identification and prioritization of migration corridors throughout Oregon would address a critical data gap for the state and facilitate conservation and management of important mule deer and pronghorn antelope populations across the West.
Pacific Lamprey Overwintering Habitat Research in North Umpqua River Basin	September 2011	The research goal is to assess the autecology and diversity of upstream migratory behaviors (including holding, migration, aestivation, overwintering, and spawning phases), the key environmental variables that influence and shape these various migratory behaviors, as well as the various habitat needs of the adult Pacific lamprey in various phases of their upstream migration in North Umpqua River basin. Using coded radio tags, this project will assess the habitat use of adult Pacific lamprey at the landscape level (large scale) and site level (small scale). A variety of landscape level habitat variables (gradient, stream width, cover, etc.) and site level habitat variables (habitat type, substrate, water depth, etc.) will be analyzed in depth to determine their significance in phase-specific lamprey habitat selection. An assortment of temporally-sensitive environmental variables (water temperature, discharge, dissolved oxygen, etc.) will also be evaluated in terms of their significance for Pacific lamprey optimal habitat range as well as their role as cues for migration behavior. The project will also examine whether the migratory behavior patterns are associated with run timing, morphological, and physiological features of lamprey. Assessing the proportion of radio tagged lamprey that migrate through the counting station vs. other routes at Winchester Dam will be critical to provide a better estimate for the total population of adult Pacific lamprey in the North Umpqua River basin above Winchester Dam. This work will bridge the knowledge gap that exists in Pacific lamprey research and help fishery resource managers focus restoration activities for Pacific lamprey in key, essential habitat within the basin and other local watersheds. The outcomes from this research will help fishery managers prioritize on lamprey habitat conservation even under changing climate conditions.	None
Maturation Timing and Run Identification of Adult Pacific Lamprey, Entosphenus tridentatus, at Willamette Falls, Oregon	January 2011	Objective 1: Describe the body morphology, including body size, of adult Pacific lamprey for the purpose of discerning sexual dimorphisms and stage of maturation. Objective 2: Estimate the fat content of Pacific lamprey for the purpose of discerning sexual dimorphisms and maturation characteristics. Objective 3: Identify the sex and status of reproductive maturation of adult Pacific lamprey through gonad histology and hormone assays. Objective 4: Identify potential links between the energetic status and reproductive development and the seasonal river flow and thermal regimes of adult Pacific lamprey collected at Willamette Falls and compare this information with lamprey recently returned from the sea (to be used as a baseline comparison) for the purposes of identifying runs of Pacific lamprey at Willamette Falls.	None
Long term fish disease monitoring program in the Lower Klamath River (2007-2012)	September 2012	Because the life cycles of these parasites are complex, predicting the severity of disease in fish requires understanding how life cycles are affected not only by water temperature, nutrient levels and flow, but also by numbers of spores contributed back to the system by infected fish as well as the distribution and abundance of the polychaete host receiving those spores. Data on disease incidence and severity from monitoring of trapped migrating smolts provides the baseline for evaluation of data from other monitoring objectives. The researchers have a variety of tools to determine how these variables affect parasite levels and subsequent disease. A quantitative PCR assay (QPCR)(Hallett and Bartholomew 2006) provides measures of parasites in water samples, in fish or in polychaetes. Sentinel fish studies (Stocking et al. 2006) provide data on disease severity throughout the river and over time. Methods developed for monitoring polychaete populations (Stocking et al. 2006) provides data both on abundance and infection prevalence in that host. These studies are linked to monitoring water quality (Susan Corum, Karuk Tribe; Paul Zedonis, USFWS). By relating information from all of these studies The researchers hope to provide a means to predict disease severity and to provide tools for rapid assessment that would enable decisions to be made on potential pathogen effects. To accomplish these objectives, the researchers have defined a set of locations that will serve as index sites, providing long-term and detailed information on infection in fish and polychaetes, polychaete populations and numbers of parasites in water samples. In 2006, exposures of Klamath River strains of Chinook and coho salmon were included along with disease susceptible rainbow trout to develop correlations between measured parasites in water (a rapid assessment method) and disease outcome. This will be continued in subsequent years to determine disease outcome under what the researchers expect to be different sets of environmental conditions. Developing data sets at identified sites will also allow the researchers to monitor populations of polychaetes in an effort to predict changes that might occur under different environmental conditions and over time. OBJECTIVE 1: Development of a multi-year dataset on infection prevalence in both host populations at selected locations to monitor how changes in flow, temperature and other variables alter parasite infection rate. This objective will provide crucial integration with data from out-migrant populations conducted by USFWS and will address the following research questions: 1. What is the annual variation in disease prevalence and severity in outmigrant Chinook salmon 2. What is the relationship between parasite numbers measured in water samples, infection prevalence in polychaete populations and biological effects in salmon? 3. How do polychaete-parasite populations change (density, abundance, prevalence of infection) and in response to what ecological variables? 4. What are the relative susceptibilities of Chinook and coho salmon and what are their roles in supporting parasite life cycles? OBJECTIVE 2: The goal of this objective is first to create a model to assess the transmission potential of the parasite between the polychaete host and the vertebrate host. Secondly, a community model will be used to examine how this potential is affected by species outside of the transmission cycle and to account for unexpected outcomes that might result from change. The community model allows the researchers to examine how perturbations can affect the basic transmission model. Both together would allow the researchers to do risk analysis following change and to examine the potential for management interventions	None
Condition and Spawning Success of Adult Spring Chinook Salmon in the Willamette River	June 2011	1. Evaluate condition of adult spring Chinook salmon returning to Willamette Valley Projects and relate condition to spawning success and pre-spawn mortality levels. 2. Evaluate arriving and post-spawning spring Chinook salmon for other potential pre-spawning mortality causes including environmental stressors, disease, and parasites. 3. Develop methods for sampling adult migrants at Willamette Falls adult trap. 4. Compile and synthesize available literature for anadromous adult salmonid migration in the Willamette Valley ecosystem to identify current knowledge, identify critical knowledge gaps, and to provide a context to prioritize future research needs. The review will include analysis of radio-telemetry data collected by USACE personnel on the North Fork Middle Fork Willamette River in 2004-2007	None
Pigeon guillemot restoration research in Prince William Sound	December 2011	1. Determine the feasibility of restoring the breeding population of Pigeon Guillemots on Naked Island using mink control. Researchers propose answering the following questions: a) Is the mink population on Naked Island introduced, or is it the result of natural colonization? b) Is mink predation currently a significant factor limiting guillemot nest success on Naked Island? c) How feasible is it to trap and remove all mink from Naked Island and, if the removal is successful, how long will Naked Island likely remain mink-free? 2. Determine whether the size and productivity of the breeding population of Pigeon Guillemots on Naked Island is limited by food supply. Researchers propose answering the following questions: a) What is the current size of the Pigeon Guillemot breeding population on Naked, Peak, Storey, Smith, Little Smith, and Lone islands in central PWS? b) Do the diets of most pairs of nesting guillemots consist primarily of nearshore demersal fishes (i.e., blennies, sculpins, pricklebacks), and include few high-lipid schooling forage fish (i.e., sand lance)? c) Do less than half of all successful nesting pairs of guillemots raise 2-chick broods? d) Are chick meal delivery rates, chick growth rates, and chick fledging masses below average? 3. Design a restoration plan for the Pigeon Guillemot population on Naked Island that is feasible, effective, and associated with a reasonable cost-benefit ratio. Potential restoration alternatives include: a) removal of all mink from Naked Island b) institute a lethal mink control program on Naked Island to drastically reduce the size of mink population c) Iinstallation of artificial guillemot nest sites on Naked Island to reduce vulnerability to predation d) lethal mink control and installation of artificial nest sites on Naked Island to further reduce vulnerability to predation e) no action	None
Evaluating the translocation of albatross chicks as a mechanism for establishing a new breeding colony and determining albatross habitat associations in the North Pacific	November 2009	1) Determine the efficacy of chick translocation as a management technique; 2) Address multi-scale questions of habitat use (at the coarse scale, researchers will determine foraging patterns and habitat use of breeding birds and fine scale analyses will include direct observations of short-tailed albatross aggregations in known habitat "hot spots" (Piatt et al. 2006) in the North Pacific, including the Bering Sea).	None
Diet Composition and Reproductive Energetics of a Rare and Declining Seabird, the Kittlitz's Murrelet	December 2010	Our primary objectives for this specific project are to: (1) Characterize and describe the pre-breeding and post-breeding diet of adult KIMU in Icy Bay, Alaska, and, if permitting allows, evaluate long-term variation in diet using historical museum specimens; (2) Understand the relationship between physiological factors (e.g., reproductive status) and diet of individual adult KIMU; and, (3) Develop a reproductive energetics model to quantify energy and food requirements of adults during the breeding season.	None
Biological Investigations of Yaquina Head Outstanding Natural Area	December 2009	This project is designed to enhance inter-agency collaboration, customer service to hundreds of thousands of visitors at YHONA, and land stewardship in identifying causes and consequences of the biological trends. The long-term benefits of this work are multi-fold. This would establish a partnership between agencies for future biological monitoring needs at YHONA, while continuing some of the efforts in this project to address long-term variation in biological trends related to changing ocean conditions and climate effects. Additionally, updating and disseminating the most current information through innovative outreach avenues greatly enhances visitor experience and perception of agency stewardship of public resources.	None
Effects of push-up dams on survival and production of redband trout in the South Fork John Day River	December 2009	In order to evaluate the benefits to steelhead of replacing push-up dams with LFS dams, researchers propose to: 1) Characterize movement and habitat use patterns of juvenile steelhead. 2) Determine habitat quality in terms of its capacity to produce juvenile steelhead (individual growth and survival will be used as the main indicators of this). 3) Compare movement and distribution patterns between juvenile steelhead not affected by movement barriers and those that may be affected by partial and total barriers. 4) Estimate the loss of production that can result from the direct effect of barriers. 5) Examine the influences on steelhead production of potentially indirect factors, such as: i) Stream temperature. Ii) Prey availability and distribution. Iii) Fish community structure and dynamics. Iv) Geomorphic features, riparian conditions, and land uses.	None
Competitive interactions and resource partitioning between northern spotted owls and barred owls in western Oregon	September 2011	The purpose of this research project is to develop a better understanding of the competitive relationships between northern spotted owls and barred owls, including exploitation of common resources and behavioral interactions. Specific objectives are to: 1) Describe size and spatial overlap of home ranges in areas where the species co-occur. 2) Compare diets and habitat associations of the two species with respect to: a) differences among seasons, b) assessment of prey preference, and c) computation of habitat selection. 3) Investigate resource partitioning based on indices of overlap in use of space, habitats, and food resources. 4) Investigate behavioral interactions between the two species to determine dominance-subordinance relations. 5) Estimate survival rates of the two species	None
Occupancy status of Northern Spotted Owls in southern Oregon.	December 2027	The Northern Spotted Owl (<i>Strix occidentalis caurina</i>) is listed as Threatened under the Endangered Species Act, primarily because of the loss of old growth forest habitat due to timber harvest. The impact of management activities that may remove or modify spotted owl nesting, roosting or foraging habitat on federal lands is required because of the federally threatened status of the northern spotted owl. The purpose of this study is to conduct surveys to locate resident spotted owls and identify owl territories that might be affected by a proposed management activity in the Fremont-Winema and Rogue Siskiyou National Forest in southern Oregon. These data will continue to be used to understand trends in occupancy status of northern spotted owls and barred owls and increase our understanding of owl ecology and habitat use within the region.	The purpose of this study is to conduct surveys to locate resident spotted owls and identify owl territories that might be affected by a proposed management activity in the Fremont-Winema and Rogue Siskiyou National Forest in southern Oregon. The impact of management activities that may remove or modify spotted owl nesting, roosting or foraging habitat on federal lands is required because of the federally threatened status of the northern spotted owl. This is a continuation of Northern spotted owl population monitoring that has been accomplished thru nearly 3 decades of collaborations and partnerships between the USDA Forest Service Region 6, Pacific Northwest Research Station, the Oregon Cooperative Fish and Wildlife Research Unit, and Oregon State University. These data will continue to be used to understand trends in occupancy status of northern spotted owls and barred owls and increase our understanding of owl ecology and habitat use within the region.
Analyzing movements and habitat use of white sturgeon in response to limited recruitment in the John Day Reservoir	June 2025	White sturgeon (<i>Acipenser transmontanus</i>) are native to major river systems in the western United States and Canada. In the Columbia River, state, federal, and tribal agencies have been actively managing and monitoring sturgeon populations since 1989. Since the construction of the Federal Columbia River Power System, white sturgeon populations have become reproductively isolated, leading to declining recruitment rates, especially in the middle and upper river impoundments. To address these challenges, Oregon Department of Fish and Wildlife implanted acoustic tags in 61 adult white sturgeon captured in the John Day Reservoir (between McNary and John Day dams) from 2018 to 2021. This research aims to pair telemetry data with locational data collected from stock assessment monitoring to gain a comprehensive understanding of the large-scale seasonal movements of different sexes and age classes in the reservoir. Additionally, we will use side-scan sonar images and other environmental data to identify suitable spawning and rearing grounds, and telemetry data will be used to characterize movements within these spawning grounds. The outcomes of this research will inform management strategies aimed at improving spawning and recruitment success for white sturgeon in the Columbia River, thus supporting the conservation of a valuable native species.	The construction of dams on the Columbia River has fragmented Pacific White Sturgeon (Acipenser transmontanus) habitats, producing essentially isolated populations between mainstem impoundments. Observations of young-of-the-year (YOY) White Sturgeon in the lower three Columbia River reservoirs (Bonneville, The Dalles, and John Day) have been declining over the past two decades. The John Day reservoir appears to be particularly vulnerable, where only 1 YOY sturgeon has been observed since 2012 during annual reservoir sampling. Based on the current length frequency distribution of sturgeon in the John Day reservoir, conservation metrics are likely not being met for the desired proportion of juveniles and subadults within the population. To address potential recruitment bottlenecks conceivably associated with spawning activity, we will use acoustic telemetry receivers throughout the John Day reservoir to characterize seasonal movements of adult White Sturgeon and formulate a habitat utilization model to identify likely spawning habitats. Additionally, if measurable YOY recruitment occurs within the next 6-9 years (estimated acoustic tag life), we hope to refine our understanding of environmental parameters conducive for spawning success. As effects of climate change become increasingly prevalent, having a contemporary understanding of White Sturgeon spawning patterns is essential. This research not only addresses critical uncertainties for lower Columbia River White Sturgeon, but also for North American sturgeon populations in general. Recruitment declines are being observed in many sturgeon populations—most famously in the Fraser River—and insights gained from this research may benefit other management agencies to help conserve these ancient fish that many people refer to as “living fossils.”
Development of an evidence-based management framework for invasive species and seabird habitat in the Oregon Coast Refuge Complex	June 2026	The Oregon Coast is home to diverse seabird populations that play crucial ecological, economic, and cultural roles—supporting ecotourism, transporting marine nutrients to terrestrial ecosystems, and acting as biological indicators of ocean health. However, many seabird species, including the iconic tufted puffin (<i>Fratercula cirrhata</i>), have experienced sharp population declines over recent decades. To protect these populations and their habitats, the U.S. Fish and Wildlife Service (USFWS) established Oregon Islands, Three Arch Rocks, and Cape Meares National Wildlife Refuges as National Wilderness Areas, designated to promote long-term stewardship and public enjoyment of Oregon’s seabird biodiversity. Despite the importance of these refuges, baseline data to support adaptive seabird management is limited. Resource managers lack crucial insights into how seabird habitats have changed, the characteristics of suitable habitats for burrow-nesting species, and accurate data on burrow occupancy and habitat use. This research addresses these gaps by examining seabird habitat requirements, establishing a baseline of vegetative habitat dynamics, and developing a structured decision-making model for adaptive management. By assessing how seabird breeding habitat characteristics have evolved over time, this study will provide USFWS refuge managers with essential data to guide targeted habitat restoration and adaptive management decisions, ultimately supporting the resilience and recovery of Oregon’s seabird populations.	The Oregon Coast hosts a diverse suite of seabirds that provide a wide range of ecological, economic, and culturally important services such as ecotourism for local communities, bringing marine derived nutrients to terrestrial habitats, and serving as biological indicators of ocean conditions. Many seabird populations, including the iconic tufted puffin (<i>Fratercula cirrhata</i>), have significantly declined along the Oregon Coast over the past few decades. Oregon Islands, Three Arch Rocks, and Cape Meares National Wildlife Refuges are designated National Wilderness Areas set aside in part to promote the protection, stewardship, and enjoyment of Oregon’s seabird populations and their habitats in perpetuity. Currently, baseline monitoring data to support the adaptive management of seabirds and seabird habitat is sparse. Managers have little to no knowledge regarding how seabird habitat has changed over the last few decades, inadequate information about what characteristics constitute suitable habitat for some burrow-nesting seabirds, and are facing a lack of reliable baseline information on burrow occupancy and habitat use. The proposed research directly addresses these knowledge gaps by investigating the specific habitat requirements of tufted puffin, establishing a baseline of vegetative habitat dynamics, and developing a structured decision-making model. Assessing how suitable seabird breeding habitat characteristics have changed over time will provide necessary information to guide refuge managers in habitat restoration and support adaptive management decisions.
Incorporating climate, disease and invasive species into the conservation of a First Food, Klamath redband trout	December 2025	In the Upper Klamath Basin (UKB), redband trout (<i>Oncorhynchus mykiss newberrii</i>) support the only remaining subsistence fishery for the Klamath Tribes and serve as an important proxy for the conservation of Chinook salmon (<i>O. tshawytscha</i>), a traditional First Food for the Klamath Tribes that is slated for reintroduction after the removal of several downstream dams. While two major conservation plans guide the restoration and management of UKB fisheries, neither plan incorporates disease and invasive species impacts, both of which are critical drivers of the Basin’s ecological balance. This project addresses this gap by examining the role of the parasite <i>C. shasta </i>in influencing species distributions within the Basin. Previous research suggests that <i>C. shasta </i>may confine invasive trout to cooler, spring-fed habitats while allowing native salmonids to coexist under intermediate temperatures. Under certain conditions, <i>C. shasta </i>may act as a “beneficial enemy” by limiting invasive trout presence, indirectly supporting native salmonid populations. For this project, we are analyzing the prevalence of <i>C. shasta</i>, native redband trout, and invasive trout in relation to specific habitat features using spatial data sets, and modeling their distributions based on water temperature and other environmental variables. These findings will inform fisheries risk assessments under future climate scenarios, providing data essential for adaptive management strategies that support the resilience of UKB’s native fish populations and the cultural and subsistence needs of the Klamath Tribes.	This research will provide actionable science to incorporate the interacting threats of climate change, disease, and invasive species into conservation plans seeking to restore subsistence fisheries for the Klamath Tribes. To address specific knowledge gaps expressed by our partners, we will identify the redband trout habitats most susceptible to both invasive trout and the salmonid parasite Ceratonova shasta. In doing so we will evaluate an unrecognized ecosystem dynamic, in which native pathogens restrict the thermal niche of invasive species, conferring indirect benefits to a native fish.
Wildlife response to the 2020 Labor Day fires in the Oregon Cascade Mountains	June 2025	In Oregon and across the Pacific Northwest, there is an urgent need to understand how wildlife species and their habitats recover following severe, large-scale wildfires. The 2020 wildfire season was unprecedented, with five major fires in western Oregon’s Cascade Mountains, each burning over 100,000 acres. This large-scale disturbance has created significant uncertainty about wildlife conservation and management in the face of future megafires, which are expected to increase with hotter, drier summers. Historically, there has been limited information on how wildlife respond to such major fire events, as megafires were previously less frequent; however, today’s conditions demand insight into how wildlife recolonize areas affected by different burn intensities, the duration needed for population recovery, and the challenges that certain species may face in reestablishing within these habitats. In response, Oregon Department of Fish and Wildlife (ODFW) established 120 long-term monitoring sites in 2021 and 2022 (roughly 60 each for the Archie Creek and Jack fires). These sites include trail cameras, autonomous recording units, and cover boards, and will be monitored over three years with further assessments at 5- to 10-year intervals. Additionally, remotely sensed data will be used to evaluate vegetation recovery and the effects of forest management practices near monitoring sites. The findings from this project will be critical for ODFW and other agencies to inform wildfire recovery strategies for wildlife and to guide future forest management practices, ensuring a proactive approach to conservation in a landscape increasingly shaped by megafires.	In Oregon State and throughout the Pacific Northwest, there is an urgent need to document how wildlife species and their habitats recover from severe, large-scale fires. 2020 was an unprecedented wildfire season in western Oregon with five wildfires each exceeding 100,000 acres in size, all in the Cascade Mountains. Understanding how these large-scale disturbances influence wildlife resources in Oregon is extremely important for their conservation and management. To date, there is limited information on how wildlife have responded to these major fire events, primarily because megafires were not as abundant and did not present as great a challenge to the future of wildlife as they do now. With long-term projections of longer, hotter, drier summers, megafires may be inescapable. Understanding how wildlife recolonize areas with different burn intensities and management histories, the length of time it takes for population recovery, and what species fail to recolonize in wildfire affected areas will be extremely important for agencies to manage wildlife resources and for informing forest management practices. In 2021 and 2022, ODFW established 120 long-term monitoring sites (60 for Archie Creek and 60 for Beachie Creek) including trail camera units, audio recording units, and cover boards. Monitoring sites will be maintained for two full years, with continued monitoring at 5- to 10-year intervals conducted by ODFW. Habitat assessments using UAS and remotely sensed data will provide valuable information on vegetation response to fire and management practices near each monitoring site.
Improving outcomes for hatchery-reared Chinook salmon through microbiome monitoring and enhancement	January 2024	Hatchery rearing and release programs have long been integral to Pacific salmon fisheries management, helping to supplement commercial and recreational harvests as wild stocks decline; however, these programs have faced significant challenges, including poor performance of hatchery-reared salmon. Addressing these challenges is critical for achieving improved economic and ecological outcomes for Pacific salmon fisheries. This project tackled a key aspect of this issue by investigating how hatchery rearing practices impact microbial communities in the gastrointestinal (GI) tracts of juvenile Chinook salmon, specifically focusing on the gut microbiome’s role in fish health and disease resistance. In salmonid species, the gut microbiome has shown potential as a useful tool for monitoring hatchery fish health and for reducing disease risk through probiotic enhancement. The goal of this research was to identify hatchery rearing practices that resulted in improved gut microbiomes for hatchery-reared juvenile salmon (i.e., gut microbiomes that were more likely to resemble those of wild fish). Through collaboration with pathologists and microbiologists at Oregon State University, this study was one of the first to directly address the causes and consequences of microbiome differences between hatchery and wild salmon and to link these differences to potential disease resistance. The results will inform hatchery management practices that enhance disease resistance and ecological compatibility, supporting healthier fisheries and laying the foundation for further studies on the long-term effects of microbiome disruption in Pacific salmon populations.	Hatchery rearing and release programs have long been integral to salmon fisheries management as a way to supplement commercial and recreational harvests, and these programs have become increasingly important to fishers as wild stocks continue to decline. However, hatchery programs are also fraught with major challenges including poor hatchery fish performance. Improving the success of hatchery salmon and reducing the risks they present for wild populations could lead to greatly improved economic and ecological outcomes for Pacific salmon fisheries. This project directly addresses this management need by investigating the impacts of hatchery rearing on the microbial communities that populate the gastrointestinal (GI) tracts of Pacific salmon, specifically juvenile Chinook salmon. In salmonid species, the gut microbiome has shown potential as a useful tool for monitoring hatchery fish health and for reducing disease risk through probiotic enhancement. The goal of our research is to identify hatchery rearing practices that result in improved gut microbiomes for hatchery-reared juvenile salmon (i.e., gut microbiomes that are more likely to resemble those of wild fish). This information will inform hatchery management practices to improve disease resistance, enhance fitness, and potentially mitigate some of the negative effects of hatchery fish on wild populations by reducing disease transmission and competition. This work will be the first to address the causes and consequences of microbiome differences between hatchery and wild Pacific salmon and will lay the groundwork for future studies assessing the long-term effects of gut microbiome disruption on Pacific salmon populations.
Quantification of juvenile salmonid habitat quality across spatial scales on the Oregon Coast	June 2024	Pacific salmon and steelhead (<i>Oncorhynchus</i> spp.) are ecologically, economically, and culturally vital species, providing essential ecosystem services such as the contribution of marine-derived nutrients and a reliable food source for terrestrial wildlife. The anadromous life cycle of most Pacific salmon species—spanning freshwater, estuarine, and marine environments—exposes them to diverse environmental stressors that vary with each life stage. Understanding how juvenile salmon and steelhead interact with these environments and their specific habitat requirements is critical, especially during the sensitive rearing phase, when habitat quality is crucial for their survival and growth. This research focused on juvenile rearing habitat suitability for <i>O. mykiss</i> (steelhead) and<i> O. kisutch</i> (coho salmon) in freshwater habitats of the Oregon Coast. By analyzing more than 20 years of historical aquatic inventory data and juvenile salmonid monitoring data from Oregon Department of Fish and Wildlife (ODFW), we identified environmental variables that define suitable habitat in terms of species occupancy and habitat preference. Additionally, the study integrated remotely sensed data to assess which habitat characteristics could be effectively monitored using GIS-based data, offering a scalable approach to habitat analysis. Our partners at ODFW are currently in the process of overhauling their habitat monitoring program. Findings from this project will directly inform methods for evaluating and monitoring juvenile salmonid rearing habitat, and will contribute to the development of an integrated population model. The model will assist ODFW and other partner agencies in predicting adult returns of Oregon Coast coho salmon and steelhead populations, ultimately supporting more targeted conservation and management efforts and harvest strategies for these critical species.	We are using more than 20 years of salmonid monitoring data from the ODFW Aquatic Inventories project, Western Oregon Rearing Project, Salmonid Life Cycle Monitoring project, and Oregon Adult Salmonid Inventory and Sampling projects to 1) develop a population model that will assist ODFW and partner agencies in predicting adult returns of Oregon Coast coho salmon and steelhead populations, thus providing managers with improved forecasts to set fish harvest recommendations and 2) develop Oregon Coast coho and steelhead juvenile habitat models using remotely sensed and modeled covariates to describe the productivity and suitability of juvenile salmon habitat. These valuable tools will inform habitat and harvest management by allowing ODFW to anticipate adult salmon returns and to identify optimal instream habitats to which current and future management actions should be focused.
Native fish species distribution and population status in Goose Lake Basin, Oregon	December 2026	The Goose Lake Basin is a unique, endorheic desert valley straddling the Oregon-California border. The Basin drains into Goose Lake—a slightly alkaline body of water that goes completely dry during periods of severe drought (such as in 2015) and spills into the Pit River during rare high-flow events. This basin is home to several endemic fish species, including the Goose Lake redband trout, Goose Lake lamprey, Goose Lake tui chub, and Goose Lake sucker. These species, which inhabit the lake and surrounding rivers, marshes, and riparian zones, coexist with both native and non-native fish populations. Increased drought frequency and other climate-mediated stressors pose a serious threat for these species, potentially reducing habitat availability and quality for native species and placing further pressure on these vulnerable populations. The goal of this project is to support agency partners (Oregon Department of Fish and Wildlife, U.S. Fish and Wildlife Service, the Lake County Umbrella Watershed Council) in conducting a comprehensive population assessment of at-risk native species within Oregon’s closed lakes basin ecosystems. By identifying the systems most at risk of population decline due to drought and other disturbances, such as invasive species, this research aims to provide critical insights into species vulnerability. This study is timely. Surveys of high desert basins in Oregon have been inconsistent for over a decade, leaving gaps in our understanding of population trends and ecosystem health. The updated abundance and distribution estimates will enable state and federal managers to make informed decisions regarding the status and management needs of these at-risk species. Additionally, population risk assessment will serve as a foundation for targeted management actions to help protect and sustain Oregon’s native desert fish species amidst mounting environmental challenges.	The Goose Lake Basin is an endorheic desert valley that runs north-to-south on the border of Oregon and California. The Basin’s watersheds drain into Goose Lake—a slightly alkaline system that has historically dried up during severe drought years (e.g., 2015), and drains into the Pit River to the south during very high-flow years. There are several endemic fish species that occupy Goose Lake and its adjacent rivers, marshes, and riparian areas: the Goose Lake redband trout, Goose Lake lamprey, Goose Lake tui chub, and Goose Lake sucker. These endemic species coexist with a variety of native and non-native species. Because Goose Lake and its surrounding watershed are highly sensitive to drought conditions, an increased frequency of drought events in the region may limit the accessibility, quantity, and quality of available habitat for native fishes, thereby putting undue stress on vulnerable species. The goal of this project is to aid agency partners in conducting a population assessment for at-risk native species in Oregon’s closed lakes basin ecosystem and to determine which systems are most at risk of declining populations due to disturbances such as drought and invasive species. This research is timely because consistent surveys have not been conducted in many of Oregon’s high desert basins for more than a decade. Updated abundance and distribution estimates will inform state and federal managers as to the population status of at-risk native species, while the population risk assessment will support actionable management outcomes.
An assessment of post-restoration trajectories of geomorphological and vegetative change in the Nisqually River Delta, Washington	June 2023	The Nisqually River Delta serves as essential feeding and rearing habitat for diverse fish and wildlife species. Between 1996 and 2009, the Nisqually Indian Tribe and the Billy Frank Jr. Nisqually National Wildlife Refuge restored over 365 hectares of estuarine habitat to tidal influence, with the goal of supporting juvenile Chinook salmon and other estuary-dependent species. Restoration monitoring from 2009 to 2015 showed significant improvements in habitat connectivity between the Nisqually River mainstem and the restored estuary, particularly at mid-to-high tide. However, the restoration’s most recent areas (2009), located in lower-elevation and more subsided regions, have shown slow vegetation colonization and growth, raising concerns about long-term habitat viability in these zones. In light of the decadal anniversary of the 2009 restoration, the Tribe, Refuge, and USGS collaborated to gather new data, including LIDAR imagery (2020), aerial photography (2019), Surface Elevation Table (SET) readings (2019, 2021), and vegetation surveys (2019, 2021). These data supplemented earlier monitoring efforts and enabled a comprehensive evaluation of the restoration’s impact over time. We integrated habitat connectivity metrics, spatial data on sediment deposition and erosion, and vegetation growth patterns to gauge progress, identifying both achievements and ongoing challenges in habitat establishment. This study has provided critical insights that will directly inform future management strategies aimed at sustaining and enhancing habitats for sensitive fish and wildlife species, as well as supporting the long-term resilience of restored estuarine systems. Through this collaborative effort, we are building a robust foundation for data-driven habitat management that benefits the species dependent on the Delta’s unique and dynamic ecosystem.	The Nisqually River Delta provides important feeding and rearing habitat for a variety of fish and wildlife. Between 1996 and 2009, the Nisqually Tribe and Billy Frank Jr. Nisqually National Wildlife Refuge collaborated to restore over 365 ha of estuarine habitat to tidal influence in the Delta for the benefit of juvenile Chinook salmon and other estuary-dependent species. Pre- and post-restoration monitoring datasets have highlighted clear increases in connectivity between the Nisqually River mainstem and the restored estuary, especially at mid-to-high tide; however, low-elevation areas in the most recent (2009) and most subsided restoration area have experienced relatively slow vegetation colonization and growth. In light of the decadal anniversary of the 2009 restoration, the Tribe, the Refuge, and USGS have collaborated to collect new data, including LIDAR imagery (2020), aerial photography (2019), SET (Surface Elevation Table) readings (2019, 2021), and vegetation surveys (2019, 2021) to supplement 2009-2015 monitoring datasets. These new data will facilitate a full evaluation of restoration progress using metrics of habitat connectivity, spatial analyses of sediment deposition and erosion, and vegetation colonization and growth. Results will inform future habitat management decisions to preserve and enhance habitat for sensitive fish and wildlife species.
Habitat Use and Survival of Ringtail in Southwest Oregon	August 2023	The ringtail (<i>Bassariscus astutus</i>) is a small, secretive, omnivorous, nocturnal relative of the raccoon (<i>Procyon lotor</i>) that occurs in southwesthern Oregon, the most northern portion of the species range. Ringtail are listed as “Sensitive” and a Conservation Strategy species in Oregon with identified knowledge gaps including the need for an assessment of the species distribution and abundance, and basic information on habitat use and selection across all life stages. In collaboration with Oregon Department of Fish and Wildlife, this project focused on estimating annual and seasonal survival rates, home range size, movement patterns and vegetation characteristics of home ranges and den sites for ringtail in Oregon. These data will aid in the development of a large-scale monitoring program for ringtail in Oregon, and add to our basic understanding of ringtail ecology and demographics at the most northern edge of their distribution.	The ringtail (<i>Bassariscus astutus</i>) is a small, secretive, omnivorous, nocturnal relative of the raccoon (<i>Procyon lotor</i>) that occurs in southwestern Oregon, the most northern portion of the species range. Ringtail are listed as “Sensitive” and a Conservation Strategy species in Oregon with identified knowledge gaps including the need for an assessment of the species distribution and abundance, and basic information on habitat use and selection across all life stages. In collaboration with Oregon Department of Conservation and Oregon State University, this project will estimate annual and seasonal survival rates, home range size, movement patterns and vegetation characteristics of home ranges and den sites for ringtail in Oregon. These data will aid in the development of a large-scale monitoring program for ringtail in Oregon, and add to our basic understanding of ringtail ecology at the most northern edge of their distribution.
Large Downed Wood as Post-fire Refugia for Terrestrial Salamanders in Pacific Northwest Forests	August 2023	Downed wood on the forest floor does more than provide habitat for amphibians, reptiles, birds and mammals. These decomposing habitat structures modify the temperature and moisture conditions in the forest itself. Inside and around downed wood, local climate conditions, or microclimates, provide wildlife with stable habitats that allow for persistence during and after wildfires. Cooler, wetter microclimates buffer the effects of wildfire in Oregon’s forests, making microclimate an important component of forest management. Despite the significance of downed wood to forest ecosystem function, forest management practices require only two downed logs to be retained for every acre harvested. To better inform forest management and species conservation efforts, it is vital that we better understand the role of downed wood in post-fire recovery of forest-dependent species. We propose a three-year study that explores the relationship between downed wood, microclimate, and wildfire on terrestrial salamander diversity. Terrestrial salamanders are sensitive to environmental change, dependent on moist habitats, and are strongly associated with downed wood. We will compare salamander diversity and abundance in forests that vary in time since fire in forests across western Oregon, capturing the inherent climate variation from the moist northern end to the drier southern end of the state. We will relate salamander presence and abundance with microclimates associated with downed wood, expecting to find more salamanders, including rare and threatened species, in forests with cooler, wetter microclimates. In areas with recent, high severity fire, we expect downed wood to facilitate salamander persistence, particularly in the drier forests of southern Oregon. This research will provide managers with important information on the quantity and quality of downed wood needed to maintain microclimate conditions that can protect and buffer forests from the ever-increasing threat of climate-driven wildfires.	By modifying the temperature and moisture conditions in the forest itself, downed wood in forest ecosystems provide wildlife with local climate conditions, or microclimates, that allow for persistence during and after wildfires. To better inform forest management and species conservation efforts, it is vital that we better understand the role of downed wood in post-fire recovery of forest-dependent species. In collaboration with Oregon State University and the Northwest Climate Science Adaptation Center, we propose a three-year study that explores the relationship between downed wood, microclimate, and wildfire on terrestrial salamander diversity. Terrestrial salamanders are sensitive to environmental change, dependent on moist habitats, and are strongly associated with downed wood. This research will provide managers with important information on the quantity and quality of downed wood needed to maintain microclimate conditions that can protect and buffer forests from the ever-increasing threat of climate-driven wildfires.
Chinook salmon passage and recovery on the Willamette River	September 2024	Willamette River basin adult spring-run Chinook salmon (<i>Oncorhynchus tshawytscha</i>) are prevented from returning to their historic spawning grounds by large dams managed jointly by the U.S. Army Corps of Engineers (USACE), Bonneville Power Administration, and Bureau of Reclamation. In response, USACE and Oregon Department of Fish and Wildlife biologists initiated an adult transportation program in the 1990’s with an objective of facilitating natural spawning of these populations above the dams. Unfortunately, annual rates of pre-spawn mortality (PSM) in adult Chinook salmon transported upstream of dams are high (often >40%), and could limit the ability to establish a natural population of spring Chinook if not reduced. The progeny of these outplanted adults face similar downstream passage difficulties that is further complicated by very high parasitic infection rates (>90%) of a native copepod (<i>Salmincola californiensis</i>). The infections affect the ability of outmigrating juvenile to swim, withstand stressors, and survive in saltwater during their ocean transition. This is an integrated project whose ultimate goal is the safe passage of juvenile and adult spring-run Chinook salmon to assist in the recovery of this listed stock.	Stream fragmentation and water development are among the greatest threats facing Chinook Salmon in the Pacific Northwest.<br><br>Recovery of this iconic species will require the development of effective fish passage strategies to facilitate juvenile and adult passage to and from their historic spawning grounds.<br><br>This project is a collaboration of an interdisciplinary team of researchers and managers from USGS, USACE, Pacific Northwest National Laboratory, Oregon State University, and Oregon Department of Fish and Wildlife.<br><br>Water resource managers will be provided with the information needed to develop safe and efficient passage systems for juvenile and adult Chinook salmon.
The development of integrated adaptive management for restoration of freshwater-estuarine ecosystems	December 2025	California Central Valley is the largest basin-estuary comoplex on the Pacific Coast that supports more than 500 fish, wildlife and plant species. It is also the home of millions of people that depend on the freshwater resources of the area . By its nature , the management of water resources in the Central Valley involves the evaluation of potential tradeoffs between conservation objectives, such as restoring or conserving at-risk species, and other values, such as providing reliable water supply to the public. This can result in conflict among competing objectives making the decision-making difficult. We are integrating management, science, and monitoring using the structured decision making process to develop an adaptive framework for restoration of aquatic ecosystems.	Most natural resource problems are complex, and decision makers and stakeholders often disagree on the best decision. The process by which decision makers traditionally arrive at decisions also tends to be difficult to explain, which in turn makes it difficult to communicate the decision-making process to stakeholders and the general public resulting in conflict.<br><br>A structured adaptive, approach can help mitigate these problems and reduce their effect by fostering better communication and knowledge transfer and facilitator the integration of new information for improved decision making.<br><br>This project is a collaboration with researchers and managers in multiple state and federal agencies including the US Fish and Wildlife Service, the US Bureau of Reclamation, the National Marine Fisheries Service CA Department of Fish and Wildlife, CA Delartment of Water Resources, non-governmental organizations, and local municipalities operating in the Central Valley.<br><br>Structured decision making process has allowed decision makers to develop and evaluate restoration strategies, identify factors that largely drive restoration decision-making helping them focus on those aspects that are most important and prioritize research and monitoring to reduce critical uncertainties and improve decision making.
The development and evaluation of monitoring protocols to inform water resource decision making	December 2022	Natural resource managers invest a considerable amount of resources on surveillance monitoring programs to track the distribution and abundance of species. Although these data can be useful when evaluating spatial and temporal trends for populations, using these data directly assumes the population dynamics signal is greater than the noise in the data that stems from the sampling process. This assumption is frequently unmet. An equally important consideration is the integration of monitoring and natural resource decision-making. Here we are evaluating the adequacy of long term monitoring data from San Francisco Bay-Delta to depict the status of fish populations and developing alternative estimators that can be integrated with water resource decision-making.	Effective water resources management requires depends upon the quality of monitoring and research data.<br><br>Unfortunately, the adequacy of sampling protocols are rarely assessed. Managers need reliable and cost-efficient survey protocols that are formally integrated with management decision-making.<br><br>This project is a collaboration with researchers in multiple federal agencies including the US Fish and Wildlife Service, the US Bureau of Reclamation, the National Marine Fisheries Service and CA State and Federal managers in the San Francisco Bay Delta.<br><br>The quality of existing long-term monitoring data will be evaluated. Alternative sample designs and estimators that are integrated with water management decision making will be developed and evaluated. These data will then be integrated with decision support models.
Integrating monitoring, modeling, and management for amphibian conservation in the western United States	September 2021	Amphibians play an important role in ecosystems, providing a critical link in the food web across aquatic and terrestrial habitats and used as indicator species to gauge overall ecosystem health. However, there is an accumulation of evidence that amphibian communities are facing global declines in abundance and diversity. Although these declines are related to a suite of interrelated factors, habitat modification is the most implicated source of amphibian declines. The strong link between habitat modification and loss of amphibians is probably related to the complex life cycle of amphibians, where individuals rely on both aquatic and terrestrial habitats to meet life history demands. We are developing a framework for integrating information from monitoring, remote sensing, and research to better information managers in the Pacific Northwest.	Amphibians are the most threatened class of vertebrates. Global declines in amphibians are related to a variety of factors including habitat, climate change, disease, contaminants, and invasive species.<br><br>As nongame vertebrates, amphibians received little direct research or management until the last few decades when declines became well documented and recognized. An integrated, adaptive framework is needed in the Pacific Northwest for identifying information gaps and developing management strategies for amphibians and their habitats.<br><br>The project is a collaboration of researchers across multiple agencies and includes the USGS Forest and Rangeland Ecosystem Science Center and State and Federal natural resource managers in the Pacific Northwest.<br><br>A useful decision-making model will be developed that will reasonably approximate the complex life cycle of amphibians while balancing the complexity with available information. The model will integrate subsequent amphibian monitoring data to reduce uncertainty about the factors affecting amphibians and their habitats and to improve reliability of the model predictions.
Assessing the value of prior and novel information in managing a mixed-stock recreational Chinook Salmon fishery	June 2021	Mixed-stock fisheries are systems that consist of multiple populations of fish with sizes amenable to resource management and are harvested simultaneously. When different stocks have varying levels of abundance, productivity, and vulnerability to fishing pressure, fishery managers often are faced with the competing objectives of protecting the more vulnerable stocks while maximizing sustainable harvest on remaining healthy stocks. The challenges associated with managing a mixed-stock fishery are typified by the Columbia River fall-run Chinook fishery at the mouth. The fishery includes numerous fall-run stocks with eight separate fall-run management components, including two protected stocks: Snake River wild brights and Lower Columbia River tules. The recreational fishery is an important economic benefit to the surrounding communities, generating over $25M/year depending on season length.To further complicate the management, a growing number of the recreational anglers believe that they can identify tule Chinook from upriver brights and purport to release an unknown portion of their catch (those identified as tules) to ensure that the season is open as long as possible. Thus, management of the fishery requires reliable estimates of in-season harvest, while taking into account changes in angler behavior. Our objectives are to develop the tools (including novel assessment methods and regulatory options) and systemic understanding necessary to promote effective management of the mixed-stock fishery in the face of existing conservation priorities and changing angler behavior.	Mixed-stock fisheries are notoriously difficult to manage. When different stocks have varying levels of abundance, productivity, and vulnerability to fishing pressure, fishery managers often are faced with the competing objectives of protecting the more vulnerable stocks while maximizing sustainable harvest on remaining healthy stocks.<br><br>The efficacy of mixed-stock fishery management is challenged by the degree of uncertainty in preseason run size forecasts, creel surveys, and tagging data to assess in-season exploitation rates for the different management stocks and changes in angling behavior. An integrated approach is needed to incorporate these sources of information to more effectively manage mixed stock fisheries.<br><br>The project is a collaboration with State and Federal natural resource managers in the Columbia River Basin.<br><br>The goal of this study to develop the tools (including novel assessment methods and regulatory options) and systemic understanding necessary to promote effective management of the a mixed-stock fishery in the face of existing conservation priorities and changing angler behavior.
Adaptively Manageing Instream Flows for Ecological Needs	August 2020	Sustaining the ecological integrity of aquatic ecosystems while meeting human needs for water resources is a major challenge facing today’s society. In many regions, including much of the western US, the growing demand for water supply and energy and increased human development have altered hydrologic regimes in streams and rivers that society depends upon for ecosystem services, including support of native biodiversity. Meeting the challenge of balancing human needs for water resources with protecting aquatic ecosystems requires the identification of management objectives and the integration of science-based information to help managers evaluate tradeoffs and identify optimal management strategies. Here we are working with managers and scientists to develop a framework for informing flow management in the Willamette River Basin.	Stream flow regulation is one of the most important issues facing natural resource managers and planners. Aquatic resource managers need tools for assessing the potential impacts of river regulation and water development on ecological systems.<br><br>Several tools have been developed for assessing the effects of streamflow alteration but none have been integration with decision making and monitoring to reduce critical uncertainties. An integrated adaptive framework is needed to manage aquatic resources, identify information gaps, and facilitate the development of aquatic resource management strategies.<br><br>The project is a collaboration of researchers across multiple agencies and includes the USGS Oregon Water Science Center, and managers several state and federal agencies in the Pacific Northwest.<br><br>An integrated adaptive framework that includes quantitative decision models will be developed for threatened salmonids and integrated with monitoring to facilitate their improvement, thereby improving management.
Fire refugia in late-successional forests: Predicting habitat persistence to support land management in an era of rapid global change	June 2021	Recent stand-replacing wildfires in late-successional and old-growth and the threat of increasing wildfire extent and severity predicted under climate change for the US Pacific Northwest (PNW), have increased land manager interest in fire refugia in late-successional and old-growth (LSOG) forests. Forest fire refugia (i.e., places that remain unburned or experience minimal tree mortality compared to surrounding areas) - are key components of contemporary burn mosaics, and can provide vital habitat for threatened and endangered species, including northern spotted owl, marbled murrelet and red tree voles. However, conservation practitioners lack information on which locations are protected from, versus vulnerable to, high-severity, stand-replacing fire. Contemporary refugia have been identified as priority locations for biodiversity conservation and climate change adaptation strategies at both regional and national scales. However, little is known about the predictability of LSOG forest fire refugia in the PNW.The overall goal of this project is to work with land managers to produce maps of the probability of contemporary fire refugia and stand-replacing fire in LSOG forests based on topography, fuels, fire weather, and climate. Leveraging the skills and expertise of a collaborative research team from OSU, USDA FS-PNW, USGS-FRESC, and USGS-CRU, we will model, map, and share information essential for the conservation of LSOG forest ecosystems in the PNW. These maps and associated products will provide timely information about the likely persistence and loss of LSOG forests under current and future climate conditions.	Recent stand-replacing wildfires in late-successional and old-growth and the threat of increasing wildfire extent and severity predicted under climate change for the US Pacific Northwest (PNW), have increased land manager interest in fire refugia in late-successional and old-growth (LSOG) forests. Forest fire refugia (i.e., places that remain unburned or experience minimal tree mortality compared to surrounding areas) - are key components of contemporary burn mosaics, and can provide vital habitat for threatened and endangered species, including northern spotted owl, marbled murrelet and red tree voles. However, conservation practitioners lack information on which locations are protected from, versus vulnerable to, high-severity, stand-replacing fire. Contemporary refugia have been identified as priority locations for biodiversity conservation and climate change adaptation strategies at both regional and national scales. However, little is known about the predictability of LSOG forest fire refugia in the PNW. The overall goal of this project is to work with land managers to produce maps of the probability of contemporary fire refugia and stand-replacing fire in LSOG forests based on topography, fuels, fire weather, and climate. Leveraging the skills and expertise of a collaborative research team from OSU, USDA FS-PNW, USGS-FRESC, and USGS-CRU, we will model, map, and share information essential for the conservation of LSOG forest ecosystems in the PNW. These maps and associated products will provide timely information about the likely persistence and loss of LSOG forests under current and future climate conditions.
Greater Sage Grouse (Centrocercus urophasianus) Response to Habitat Restoration Efforts in the Devils Garden Plateau of Northern California and Southern Oregon	March 2023	Range-wide declines in greater sage grouse (Centrocercus urophasianus) have been attributed to habitat alteration and fragmentation. Once abundant throughout the Devils Garden Plateau of southern Oregon and northern California, sage-grouse have declined significantly and there is a strong correlation between decreased sage-grouse abundance and the loss or fragmentation of sagebrush in the region due to juniper encroachment. Landscape-scale modeling has shown that juniper encroachment negatively impacts sage-grouse, and recent research has positively linked sage-grouse demographics to juniper removal activities. In 2005, the Klamath Basin National Wildlife Refuge Complex (KBNWRC) in collaboration with ranchers, California Department of Fish and Wildlife (CDFW), Oregon Department of Fish and Wildlife (ODFW), Bureau of Lan Management (BLM), Natural Resources Conservation Service (NRCS), and United States Forest Service (USFS) initiated a sagebrush restoration effort and grouse translocation program to augment sage-grouse numbers, and prevent extirpation of the Devils Garden population on the Clear Lake NWR. Anecdotal accounts suggest birds are seasonally moving throughout restored areas; however, these earlier monitoring efforts were conducted opportunistically and without targeted objectives, resulting in limited quantitative data. In collaboration with USFWS and OSU, this current project will attempt to fill knowledge gaps regarding dispersal ecology, seasonal movement patterns and demographics relative to landscape distribution of seasonal habitat, and habitat condition (structure, hydrology) for sage-grouse in this area. Strategic and successful habitat restoration in Devils Garden is contingent on collecting this information to address management objectives for meeting seasonal habitat requirements of grouse while promoting landscape connectivity and broader ecosystem benefits including hydrologic efficiencies and habitat resiliency.	Range-wide declines in greater sage grouse (Centrocercus urophasianus) have been attributed to habitat alteration and fragmentation. Once abundant throughout the Devils Garden Plateau of southern Oregon and northern California, sage-grouse have declined significantly and there is a strong correlation between decreased sage-grouse abundance and the loss or fragmentation of sagebrush in the region due to juniper encroachment. Landscape-scale modeling has shown that juniper encroachment negatively impacts sage-grouse, and recent research has positively linked sage-grouse demographics to juniper removal activities. In 2005, the Klamath Basin National Wildlife Refuge Complex (KBNWRC) in collaboration with ranchers, California Department of Fish and Wildlife (CDFW), Oregon Department of Fish and Wildlife (ODFW), Bureau of Lan Management (BLM), Natural Resources Conservation Service (NRCS), and United States Forest Service (USFS) initiated a sagebrush restoration effort and grouse translocation program to augment sage-grouse numbers, and prevent extirpation of the Devils Garden population on the Clear Lake NWR. Anecdotal accounts suggest birds are seasonally moving throughout restored areas; however, these earlier monitoring efforts were conducted opportunistically and without targeted objectives, resulting in limited quantitative data. In collaboration with USFWS and OSU, this current project will attempt to fill knowledge gaps regarding dispersal ecology, seasonal movement patterns and demographics relative to landscape distribution of seasonal habitat, and habitat condition (structure, hydrology) for sage-grouse in this area. Strategic and successful habitat restoration in Devils Garden is contingent on collecting this information to address management objectives for meeting seasonal habitat requirements of grouse while promoting landscape connectivity and broader ecosystem benefits including hydrologic efficiencies and habitat resiliency.
Barred owls in the Pacific Northwest: using an experimental removal project to understand predator-prey interactions of a non-native raptor.	March 2023	The barred owl (Strix varia) is a medium-sized forest owl native to eastern North America (Mazur and James 2000). Starting in the late 1800’s, the barred owl began expanding its geographic range north and west, and their newly expanded range now completely overlaps that of the federally threatened northern spotted owl. Strong evidence indicates that competition with invading barred owls is causing rapid declines in populations of spotted owls, and that in some portions of the Pacific Northwest, barred owls now occur at much greater densities relative to spotted owls. However, little research exists on the overall impacts of this newly established apex predator on other forest species (besides spotted owls) and food-web dynamics. In collaboration with USGS-FRESC and USFWS, this project will take advantage of the experimental design associated with an on-going barred owl removal experiment to evaluate the impact this novel avian predator is having on the food web in the PNW. Understanding the impact of barred owls on the food web is critical for spotted owls and other native species, particularly as barred owl densities reach carrying capacity in the PNW.	The barred owl (Strix varia) is a medium-sized forest owl native to eastern North America (Mazur and James 2000). Starting in the late 1800’s, the barred owl began expanding its geographic range north and west, and their newly expanded range now completely overlaps that of the federally threatened northern spotted owl. Strong evidence indicates that competition with invading barred owls is causing rapid declines in populations of spotted owls, and that in some portions of the Pacific Northwest, barred owls now occur at much greater densities relative to spotted owls. However, little research exists on the overall impacts of this newly established apex predator on other forest species and general food-web dynamics. In collaboration with USGS-FRESC and USFWS, this project will take advantage of the experimental design associated with an on-going barred owl removal experiment to evaluate the impact this novel avian predator is having on the food web in the PNW. Understanding the impact of barred owls on the food web is critical for spotted owls and other native species, particularly as barred owl densities begin to reach carrying capacity.
Habitat use and survival of Columbian Black-tailed deer in Western Oregon	June 2022	Black-tailed deer (<i>Odocoileus hemionus columnbianus</i>) populations and hunter harvest trends have declined in Oregon since 1994. The Oregon Department of Fish and Wildlife (ODFW) is concerned with this decline and has identified current knowledge gaps regarding black-tailed deer ecology in Oregon that are necessary to facilitate ODFW’s management of this species. To address these knowledge gaps, ODFW initiated a large-scale, long-term black-tailed deer research project in the fall of 2011 that included the attachment of VHF and GPS radio-collars to adult deer. In collaboration with a Unit graduate student, these radio telemetry data will be used by the student to generate seasonal resource selection functions and estimate seasonal and annual survival rates of black-tailed deer relative to habitat use. Information on habitat selection and it's effect on key vital rates like adults survival would fill a primary knowledge gap for black-tailed deer in Oregon that will facilitate effective management by ODFW.	Black-tailed deer (<i>Odocoileus hemionus columnbianus</i>) populations and hunter harvest trends have declined in Oregon since 1994. The Oregon Department of Fish and Wildlife (ODFW) is concerned with this decline and has identified current knowledge gaps regarding black-tailed deer ecology in Oregon that are necessary to facilitate ODFW’s management of this species. To address these knowledge gaps, ODFW initiated a large-scale, long-term black-tailed deer research project in the fall of 2011 that included the attachment of GPS radio-collars to adult female deer. In collaboration with a Unit graduate student, these radio telemetry data will be used by the student to generate seasonal resource selection functions and estimate seasonal and annual survival rates of black-tailed deer relative to habitat use. Information on habitat selection and it's effect on key vital rates like adults survival would fill a primary knowledge gap for black-tailed deer in Oregon that will facilitate effective management by ODFW.
Response of desert bighorn sheep in the Mojave National Preserve to respiratory disease.	September 2020	A recently discovered (May 2013) outbreak of epizootic pneumonia in the deserts of southeastern California caused a substantial die-off of desert bighorn sheep in the largest and most important population in the Mojave National Preserve (MOJA). This outbreak was likely caused by pathogens transmitted from domestic sheep or goats to which native bighorn sheep mostly lack natural resistance, and could lead to extirpation of the iconic species from the Preserve. MOJA and adjacent mountain ranges support a large meta-population of desert bighorn sheep, central to the most extensive array of naturally-persisting bighorn herds in North America. Until 2013, pneumonia epizootics in this region were unknown. This study is using both existing and new data to evaluate adult and juvenile survival over multiple years across populations where pneumonia is present, to establish the demographic consequences of the current disease outbreak, and determine how strong environmental stochasticity affects the persistence and impacts of the disease. We will also use recently updated genetic data and studies of seasonal movement patterns by male and female bighorn sheep to infer risk of disease spread among populations.	A recently discovered (May 2013) outbreak of epizootic pneumonia in the deserts of southeastern California caused a substantial die-off of desert bighorn sheep in the largest and most important population in the Mojave National Preserve (MOJA). This outbreak was likely caused by pathogens transmitted from domestic sheep or goats to which native bighorn sheep mostly lack natural resistance, and could lead to extirpation of the iconic species from the Preserve. MOJA and adjacent mountain ranges support a large meta-population of desert bighorn sheep, central to the most extensive array of naturally-persisting bighorn herds in North America. Until 2013, pneumonia epizootics in this region were unknown. In collaboration with the National Park Service and California Department of Fish and Wildlife, this study is using both existing and new data to evaluate adult and juvenile survival over multiple years across populations where pneumonia is present, to establish the demographic consequences of the current disease outbreak, and determine how strongly environmental stochasticity affects the persistence and impacts of the disease. We will also use recently updated genetic data and studies of seasonal movement patterns by male and female bighorn sheep to infer risk of disease spread among populations. Results from this study will provide key information on the demographic impacts and transmission dynamics of the pneumonia pathogen and aide in mitigation and management of disease outbreaks in bighorn sheep.

Research Publications

Research Publications	Publication Date
Zydlewski, J. J. Johnson, J. Brunzell, J., Hogle, S. clements, M. Karnowski, and C. Schreck. 2008. Seaward migration of coastal cutthroat trout Oncorhynchus clarkia from four tributaries of the Columbia River. The 2005 Coastal Cutthroat Trout symposium: Status, Management, Biology, and Conservation. Oregon Chapter, American Fisheries Society, Portland, Oregon. 65-74.	October 2008
Zabel, C. J., and R. G. Anthony. 2003. Introduction and historical perspective. In Zabel, C. J. and R. G. Anthony (eds. ). Mammal Community Dynamics: Management and Conservation in the Coniferous Forests of Western North America. Cambridge University Press, New York NY.	January 2003
Zabel, C. J., and R. G. Anthony (eds. ). 2003. Mammal Community Dynamics: Management and Conservation in the Coniferous Forests of Western North America. Cambridge University Press, New York NY.	January 2003
Youngflesh, C., S. Jenouvrier, Y.Li, R. Ji, D.G. Ainley, G. Ballard, C. Barbraud, K. Delord, K.M. Dugger, W.R. Fraser, J.T. Hinke, P.O’B. Lyver, S. Olmastroni, S.G. Trivelpiece, W.Z. Trivelpiece, and H.J. Lynch. Importance of environmental variability in phenological match-mismatch: lessons from a circumpolar analysis of the Adélie penguin. Ecology 98(4):940-951.	April 2017
Yeoh, C. -G., C. B. Schreck, M. S. Fitzpatrick, and G. W. Feist. 1996. In vivo steroid metabolism in embryonic and newly hatched steelhead trout (Oncorhynchus mykiss). General and Comparative Endocrinology 102:197-209.	January 1996
Yeoh, C. -G., C. B. Schreck, G. W. Feist, and M. S. Fitzpatrick. 1996. Endogenous steroid metabolism is indicated by fluctuations of endogenous steroid and steroid glucorinide levels in early development of the steelhead trout (Oncorhynchus mykiss). General and Comparative Endocrinology 103:107-114.	January 1996
Yada, T., T. Azuma, S. Hyodo, T. Hirano, G. Grau, and C. B. Schreck. 2007. Differential expression of corticosteroid receptor genes in trout immune system in response to acute stress. General and Comparative endocrinology.	September 2007
Yada, T., S. Hyodo and C. B. Schreck. 2008. Effects of Seawater Acclimation on mRNA Levels of Corticosteroid Receptor Genes in Osmoregulatory and Immune Systems in Trout. General and Comparative Endocrinology 156:622-627.	January 2008
Yada, T., K. Muto, T. Azuma, S. Hyodo, and C. B. Schreck. 2005. Cortisol stimulates growth hormone gene expression in rainbow trout leucocytes in vitro. General and Comparative Endocrinology. 142:248-255.	January 2005
Yada, T., I. Misumi, K. Muto, T. Azuma, and C. B. Schreck. 2004. Effects of prolactin and growth hormone on proliferation and survival of cultured trout leucocytes. General and Comparative Endocrinology. 136:298-306.	September 2004
Yackulic, CB, LL Bailey, KM Dugger, RJ Davis, AB Franklin, ED Forsman, SH Ackers, LS Andrews, LV Diller, SA Gremel, KA, Hamm, DR Herter, JM Higley, RB Horn, C McCafferty, JA Reid, JT Rockweit, and, SG Sovern. 2019. The past and future roles of competition and habitat in the range-wide occupancy dynamics of northern spotted owls: Ecological Applications, 29(3) e01861, doi.org/10.1002/eap.1861.	April 2019
Wright, S. K., D. D. Roby, and R. G. Anthony. 2007. Responses of California Brown Pelicans to Disturbances at a Large Oregon Roost. Waterbirds 3);479-487.	October 2007
Wright, S. D.D. Roby, and R.G. Anthony. 2012. Factors affecting the behavior of brown pelicans at a post-breeding roost. Western Birds 43:21-36.	January 2012
Woo, I, MJ Davis, SEW De La Cruz, L Windham-Myers, JZ Drexler, KB Byrd, EJ Stuart-Haëntjens, FA Anderson, BA Bergamaschi, G Nakai, CS Ellings, and S Hodgson. 2021. Carbon flux, storage, and wildlife co-benefits in a restoring estuary: case study at the Nisqually River Delta, Washington, USA. In K Krauss, Z Zhilang, and C Stagg (eds.) Wetland Carbon and Environmental Management. Wiley Publishers. https://doi.org/10.1002/9781119639305.ch5 \| Publisher Website	October 2021
Wohner,W.J, A. Duarte, J. Wikert, B. Cavallo, S.C. Zeug, and J.T Peterson. Integrating monitoring and optimization modeling to inform flow decisions for Chinook salmon smolts. Ecological Modeling \| Abstract	July 2022	Monitoring is usually among the first actions taken to help inform recovery planning for declining species, but these data are rarely used formally to inform conservation decision making. For example, Central Valley Chinook salmon were once abundant, but anthropogenic activities have led to widespread habitat loss and degradation resulting in significant population declines. Juvenile Chinook salmon survival through the southern Sacramento-San Joaquin River Delta in particular, may be a limiting factor for juveniles outmigrating from the San Joaquin River and tributaries. However, survival and routing monitoring data have not been formally used to inform water management. Here, we illustrate how estimates derived from monitoring data can be used to inform water management and as a basis for developing adaptive management for flows. Specifically, we conducted a meta-analysis of Chinook salmon smolt survival and routing estimates through the south Delta. We then used the resulting parameter estimates to develop a survival and routing simulation model to estimate optimal flows for the San Joaquin River during smolt outmigration from February–May. We found that large flow pulses at predictable times during the spring are projected to be optimal for increasing Chinook salmon smolt survival to the Bay and that optimal scenarios differed somewhat with water year type. Sensitivity analysis revealed temperature and smolt outmigration timing are driving optimal pulse distribution and that water allocation changes little with parameter uncertainty. This case study highlights the utility of the decision-analytic framework for solving conservation problems.
Wohner, P.J., R.F. Thurow, and J.T. Peterson. 2024. Evaluating streamflow and temperature effects on migration and survival of a cold-water fish with spatial capture-recapture models. Transactions of the American Fisheries Society153(3): 326-346. https://doi.org/10.1002/tafs.10464 \| Publisher Website	April 2024
Wohner, P.J., P.D. Scheerer, M.H. Meeuwig, and J.T. Peterson. 2023. A comprehensive multi-state conditional occupancy model for evaluating interactions of non-native and native species. Frontiers in Ecology and Evolution 10, p.1288. \| Abstract	January 2023	A major challenge in ecology is disentangling interactions of non-native, potentially invasive species on native species. Conditional two-species occupancy models are used to examine the effects of dominant species (e.g., non-native) on subordinate species (e.g., native) while considering the possibility that occupancy of one species may affect occupancy and/ or detection of the other. Although conditional two-species models are useful for evaluating the influence of one species on presence of another, it is possible that species interactions are density dependent. Therefore, we developed a novel two-species occupancy model that incorporates multiple abundance states (i.e., absent, present, abundant) of the native species. We showcase the utility of this model that has the capacity to incorporate random effects and covariates on both occupancy and detection and that can help disentangle species interactions given varying occupancy and detection in different abundance states. As a case study, we use snorkel survey data from the Umpqua basin, Oregon, where it is hypothesized that smallmouth bass <i>Micropterus dolomieu</i>, a non-native piscivore, exclude Umpqua chub <i>Oregonichthys kalawatseti</i>, a small endemic minnow. Our conditional two-species multi-state (2SMS) model allowed us to conclude that in general, average occupancy was low for both fishes, and that when non-native bass were present, overall native chub occupancy in the present (0.18 ± 0.05 SD) and abundant (0.19 ± 0.03) states was higher than when non-natives were absent (0.14 ± 0.02/ 0.08 ± 0.02), indicating the non-native was not excluding the native species. By incorporating a species interaction factor into the model, we found a positive association (6.75 ± 5.54 SD) between native chub and non-native bass. The covariates strongly related to occupancy were elevation, algae, and land cover type (urban and shrub). Detection probability was relatively high for both species (0.21–0.82) and was most strongly related to the covariates day of year, water temperature, gravel substrate, and stream order/ magnitude. Incorporation of detection probability and covariates enabled interpretation of interactions between the two species that may have been missed without their inclusion in the modeling process. Our new 2SMS occupancy model can be used by scientists and managers with a broad range of survey and covariate data to disentangle species interactions problems to help them inform management decisions.
Wohner, P.J., A. Duarte, and J.T. Peterson. 2024. An integrated analysis for estimation of survival, growth, and movement of unmarked juvenile anadromous fish. Ecological Modeling 495, p.110780. https://doi.org/10.1016/j.ecolmodel.2024.110780 \| Abstract \| Publisher Website	September 2024	Managers invest substantial resources to promote recovery of declining anadromous fish stocks. Recovery strategies are manifold and often include management actions intended to stimulate somatic growth, increase in-river survival, and motivate juvenile outmigration during favorable environmental conditions. Evaluating the efficacy of these management actions is difficult, however, because monitoring data that explicitly track individuals from egg deposition to juvenile outmigration are typically lacking. We developed an integrated population model that links two different and often collected types of anadromous fish monitoring data: spawning ground surveys and rotary screw trap juvenile catch data. The integrated model accounts for incomplete detection and uses the two sources of data to estimate juvenile demographic parameters in a multistate framework. We evaluated the model’s performance using simulated data under a range of conditions typically encountered in similar surveys. Simulation results indicated that the model estimated juvenile survival, growth, and movement with no-to-minimal bias (i.e., ≥ 50% of simulations ± 0–0.05). As an example case study, we fit the model to empirical fall-run Chinook Salmon (<i>Oncorhynchus tshawytscha</i>) monitoring data collected in California’s Central Valley, U.S.A. In doing so, we evaluated the influence of environmental conditions (e.g., discharge, water temperature) and habitat availability on juvenile demographic rates. We demonstrated that through our integrated approach we could estimate state transition probabilities that are typically inestimable for naturally produced, unmarked juvenile fish when using traditional statistical approaches to analyze these types of monitoring data. Furthermore, the structure of our model can serve as a useful foundation for decision-support models within adaptive management programs by directly linking management actions, decision-support-model predictions, and monitoring.
Winter, G. W., C. B. Schreck, and J. D. McIntyre. 1980. Meristic comparison of four stocks of steelhead trout (Salmo gairdneri). Copeia 1980:160-162.	January 1980
Winter, G. W., C. B. Schreck, and J. D. McIntyre. 1979. Resistance of different stocks and transferring genotypes of coho salmon and steelhead trout to bacterial kidney disease and vibriosis. Fishery Bulletin 77:795-802.	January 1979
Wilson, D. J., P. O’B. Lyver, T. C. Greene, A. L. Whitehead, K. M. Dugger, B. J. Karl, J. R. F. Barringer, R. McGarry, A. M. Pollard, and D. G. Ainley. 2016. Adélie Penguin numbers predict breeding South Polar Skua numbers on Ross Island, Antarctica. Polar Biology early relesase: DOI 10.1007/s00300-016-1980-4	June 2016
Wiens, JD, KM Dugger, M Higley, DB Lesmeister, AB Franklin, KA Hamm, GC While, KE Dilione, DC Simon, RR Bown, PC Carlson, CB Yackulic, JD Nichols, JE Hines, RJ Davis, DW Lamphear, C McCafferty, TL McDonald, and SG Sovern. 2021. Invader removal triggers competitive release in a threatened avian predator. Proceedings of the National Academy of Science 118 (31): e2102859118. https://doi.org/10.1073/pnas.2102859118	July 2021
Wiens, J.D., K.M. Dugger, K.E. Lewicki, and D.C. Simon. 2017. Effects of experimental removal of Barred Owls on population demography of northern Spotted Owls in Washington and Oregon—2016 progress report: U.S. Geological Survey Open-File Report 2017-1040, 23 pp. https://doi.org/10.3133/ofr20171040	April 2017
Wiens, J.D., K.M. Dugger, K.E. Lewicki, and D.C. Simon. 2016. Effects of experimental removal of barred owls on population demography of northern spotted owls in Washington and Oregon - 2015 Progress Report. U.S. Geological Survey Open-File Report 2016-1041, 16 p., https://dx.doi.org/10.3133/ofr20161041. [IP-072911, approved 3/11/2016]	June 2016
Wiens, J.D., K.M. Dugger, D.B. Lesmeister, K.E. Dilione, and D.C. Simon. 2019. Effects of Barred Owl (Strix varia) removal on population demography of Northern Spotted Owls in Washington and Oregon, 2015-18. U.S. Geological Survey Open File Report 2019-1074, 17pp. hppts://doi.org./10.3133/ofr20191074.	July 2019
Wiens, J.D., K.M. Dugger, D.B. Lesmeister, K.E. Dilione, and D.C. Simon. 2018. Effects of experimental removal of Barred Owls on population demography of Northern Spotted Owls in Washington and Oregon—2017 progress report: U.S. Geological Survey Open-File Report 2018–1086, 23 pp. https://doi.org/10.3133/ofr20181086.	May 2018
Whitlock, S.L., T.M. Lewis, and J.T. Peterson. 2020. Using a Bayesian Multistate Occupancy Model to Assess Seabird and Shorebird Status in Glacier Bay, Alaska. Wildlife Society Bulletin https://doi.org/10.1002/wsb.1100	October 2020
Whitlock, S.L, J.N. Womble, and J.T. Peterson. Modelling Pinniped Abundance and Distribution Using Counts at Terrestrial Sites and In-Water Sightings. Ecological Modelling	March 2020
Whitehead, A.L., P. O'B. Lyver, G. Ballard, K. Barton, B.J. Karl, K. M. Dugger, S. Jennings, A. Lescroel, P.R. Wilson, and D. G. Ainley. 2015. Factors driving Adelie penguin chick size, mass and condition at colonies of different sizes in the Southern Ross Sea. Marine Ecology Progress Series 523:199-213.	January 2015
White, J.S., Peterson, J.T., Stratton Garvin, L.E., Kock, T.J., and Wallick, J.R., 2022, Assessment of habitat availability for juvenile Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) in the Willamette River, Oregon: U.S. Geological Survey Scientific Investigations Report 2022–5034, 44 p., https://doi.org/10.3133/sir20225034 \| Abstract	March 2022	The Willamette River, Oregon, is home to two salmonid species listed as threatened under the Endangered Species Act (ESA), Chinook salmon and steelhead trout. Streamflow along the Willamette River is largely controlled by upstream dams, 13 of which are operated by the U.S. Army Corps of Engineers (USACE) as part of the Willamette Valley Project. In 2008, these dams were found to have a deleterious effect on ESA-listed salmonids (NOAA Fisheries, 2008), resulting in USACE taking mitigatory actions. Included in these actions was setting seasonal streamflow targets at various locations along the river to improve survival and migration of juvenile salmonids. Though these targets were established with the best available information at the time, recent data and models have advanced understanding of river dynamics and allow a more robust analysis of the affect of streamflow on downstream habitat. This study leverages these recent datasets to build high-resolution models of useable habitat for juvenile Chinook Salmon and steelhead trout to assess how this habitat varies with streamflow. Habitat models rely on hydraulic models developed in White and Wallick, 2021, and temperature models developed in Stratton Garvin and others, 2021b, both paired with literature supplied data on habitat preferences. Findings a non-uniform response to streamflow, where habitat in some reaches of the Willamette consistently increases with additional streamflow, while other reaches see habitat decrease when streamflows increase from low to moderate flows. These differences are explained by local geomorphology in each reach, particularly the transition of the river from a relatively dynamic, multi-threaded river to a simpler and more confined river downstream. The upstream reaches generally have more habitat available per unit stream distance than their counterparts, but all reaches display greatest amounts of habitat at the highest streamflows. Finally, results show that water temperature in summer greatly reduces the amount of habitat available to the focal species, particularly downstream of Corvallis. Together, these findings serve to inform flow management by providing a quantitatve assessment of the affects of streamflow on habitat.
Weitkamp, L.A., T.P. Good, D.E. Lyons, and D.D. Roby. The influence of environmental variation on the Columbia River estuarine fish community: Implications for predation on juvenile salmonids. Submitted to North Pacific Anadromous Fish Commission Bulletin.	October 2016
Weiner, G. S., C. B. Schreck, and H. W. Li. 1986. Effects of low pH on reproduction of rainbow trout. Transactions American Fisheries Society 115:75-82.	January 1986
Webb, M. A. H., J. P. Van Eenennaam, G. W. Feist, J. Linares-Casenave, M. S. Fitzpatrick, C. B. Schreck and S. I. Doroshov. 2001. Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, ACIPENSER TRANSMONTANUS. Aquaculture 201:137-151.	October 2001
Webb, M. A. H., J. A. Allert, K. M. Kappenman, J. Marcos, G. W. Feist, C. B. Schreck, and C. H. Shackleton. 2007. Identification of plasma glucocorticoids in pallid sturgeon in response to stress. General and Comparative Endocrinology. 154:98-104.	January 2007
Webb, M. A. H., G. W. Feist, M. S. Fitzpatrick, E. P. Foster, C. B. Schreck, M. Plumlee, C. Wong, and D. T. Gunderson. 2006. Mercury concentrations in gonad, liver, and muscle of white sturgeon, Acipenser transmontanus, in the lower Columbia River. Archives of Environmental Contamination and Toxicology. 50:443-451.	January 2006
Webb, M. A. H., G. W. Feist, J. M. Trant, J. P. Van Eenennaam, M. S. Fitzpatrick, C. B. Schreck, and S. I. Doroshov. 2002. Ovarian steroidogenesis in white sturgeon (Acipenser transmontanus) during oocyte maturation and induced ovulation. General and Comparative Endocrinology 129:27-38.	October 2002
Webb, M. A. H., G. W. Feist, E. P. Foster, C. B. Schreck, and M. S. Fitzpatrick. 2002. Potential classification of sex and stage of maturity of wild white sturgeon (ACIPENSER TRANSMONTANUS) using blood plasma indicators. Transactions of the American Fisheries Society 131:132-142.	June 2002
Wallace, Z.P., P.L. Kennedy, J.R. Squires, R.J. Oakleaf, K.M. Dugger, and L.E. Olson. 2016. Re-Occupancy of Breeding Territories by Ferruginous Hawks in Wyoming: Relationships to Environmental and Anthropogenic Factors, PLoS ONE 11(4): e0152977. doi:10.1371/journal.pone.0152977	April 2016
Walks, D. J., H. W. Li, and G. H. Reeves. 2000. Trout, summer flows and irrigation canals: A study of habitat condition and trout populations within a complex system. Pages 115-125, In: I. G. Cowx (Editor). Proceedings of the Symposium on Management and Ecology of River Fisheries. Blackwell Scientific.	January 2000
Vijayan, M. M., G. Feist, D. M. E. Otto, C. B. Schreck, and T. W. Moon. 1997. 3, 3?, 4, 4?-Tetrachlorobiphenyl affects cortisol dynamics and hepatic function in rainbow trout. Aquatic Toxicology 37:87-98.	January 1997
Vijayan, M. M., G. Feist, D. M. E. Otto, C. B. Schreck, and T. W. Moon. 1997. 3, 3', 4, 4'-Tetrachlorobiphenyl affects cortisol dynamics and hepatic function in rainbow trout. Aquatic Toxicology 37:87-98.	January 1997
Vijayan, M. M., A. G. Maule, C. B. Schreck, and T. W. Moon. 1993. Hormonal control of hepatic glycogen metabolism in food-deprived continuously swimming coho salmon. Canadian Journal of Fisheries and Aquatic Sciences 50:1676-1682.	January 1993
Verburg-van Kemenade, L., and C. B. Schreck. 2007. Discussion: Immune and endocrine interactions. General and Comparative Endocrinology. 152:352.	January 2007
VanderKooi, S. P., A. G. Maule, and C. B. Schreck. 2001. The effects of electroshock on immune function and disease progression in juvenile spring chinook salmon. Transactions of the American Fisheries Society 130:397-408.	August 2001
Van Doorslaer, K, V. Ruoppolo, A. Schmidt, A. Lescroel, D. Jongsomjit, M. Elrod, S. Kraberger, D. Stainton, K.M. Dugger, G. Ballard, D.G. Ainley, and A. Varsani. 2017. Unique genome organization of non-mammalian papillomaviruses provides insights into the evolution of viral early proteins. Viral Evolution 3(2):1-12. doi: 10.1093/ve/vex027	October 2017
Tyre A.J., J.T. Peterson, S.J. Converse, T. Bogich, W.L. Kendall, D. Miller, M. Post Van Der Burg, C. Thomas, R. Thompson, J. Wood, D.C. Brewer, and M.C. Runge 2011. Adaptive management of bull trout populations in the Lemhi Basin. Journal of Fish and Wildlife Management. 2:262-281 \| Abstract \| Publisher Website	December 2011	The bull trout Salvelinus confluentus, a stream-living salmonid distributed in drainages of the northwestern United States, is listed as threatened under the Endangered Species Act because of rangewide declines. One proposed recovery action is the reconnection of tributaries in the Lemhi Basin. Past water use policies in this core area disconnected headwater spawning sites from downstream habitat and have led to the loss of migratory life history forms. We developed an adaptive management framework to analyze which types of streams should be prioritized for reconnection under a proposed Habitat Conservation Plan. We developed a Stochastic Dynamic Program that identified optimal policies over time under four different assumptions about the nature of the migratory behavior and the effects of brook trout Salvelinus fontinalis on subpopulations of bull trout. In general, given the current state of the system and the uncertainties about the dynamics, the optimal policy would be to connect streams that are currently occupied by bull trout. We also estimated the value of information as the difference between absolute certainty about which of our four assumptions were correct, and a model averaged optimization assuming no knowledge. Overall there is little to be gained by learning about the dynamics of the system in its current state, although in other parts of the state space reducing uncertainties about the system would be very valuable. We also conducted a sensitivity analysis; the optimal decision at the current state does not change even when parameter values are changed up to 75% of the baseline values. Overall, the exercise demonstrates that it is possible to apply adaptive management principles to threatened and endangered species, but logistical and data availability constraints make detailed analyses difficult.
Tripp, R. A., A. G. Maule, C. B. Schreck, and S. L. Kaattari. 1987. Cortisol-mediated suppression of salmonid lymphocyte responses in vitro. Developmental and Comparative Immunology 11:565-576.	January 1987
Torgersen, C. E., C. V. Baxter, H. W. Li, and B. A. McIntosh. 2006. Landscape influences on longitudinal patterns of river fishes: spatially continuous analysis of fish-habitat relationships. Pages 473-492 in R. M. Hughes, L. Wang, and P. W. Seelbach (eds).	June 2006
Thurow, R.F., J.T. Peterson, G.L. Chandler, C. M. Moffitt, and T. C. Bjornn. 2020 Concealment of Juvenile Bull Trout in Response to Temperature, Light, and Substrate: Implications for Detection. PloS ONE https://doi.org/10.1371/journal.pone.0237716	September 2020
Thomas, C. M., and R. G. Anthony. 2003. Environmental contaminants and nesting behavior of great blue herons from the Columbia and Willamette Rivers, Oregon and Washington. Northwest Science 77:320-330.	October 2003
Thomas, C. M., and R. G. Anthony. 1999. Environmental contaminants in Great Blue Herons (Ardea herodias) from the lower Columbia and Willamette rivers, Oregon and Washington USA. Environmnetal Toxicology and Chemistry 18:2804-2816.	November 1999
Suzuki, Y., D.D. Roby, D.E. Lyons, K.N. Courtot, and K. Collis. 2015. Developing non-destructive techniques for managing conflicts between fisheries and double-crested cormorant colonies. Wildlife Society Bulletin 39:764-771. DOI: 10.1002/wsb.595 \| Abstract	July 2015	Double-crested cormorants (Phalacrocorax auritus) have been identified as the source of significant mortality to juvenile salmonids (Oncorhynchus spp.) in the Columbia River Basin. Management plans for reducing the size of a large colony on East Sand Island in the Columbia River estuary are currently being developed. We evaluated habitat enhancement and social attraction as non-destructive techniques for managing cormorant nesting colonies. We tested these techniques on unoccupied plots adjacent to the East Sand Island cormorant colony. Cormorants quickly colonized these plots and successfully raised young. Cormorants were also attracted to nest and raised young on similar plots at two islands ca. 25 km from East Sand Island; one island had a history of successful cormorant nesting and the other was a site where cormorants had previously attempted to nest, but were unsuccessful. On a third island with no history of cormorant nesting or nesting attempts, these techniques were unsuccessful in attracting cormorants to nest. Our results suggest that some important factors influencing attraction of nesting cormorants using these techniques include history of cormorant nesting, disturbance, and presence of breeding cormorants nearby. These techniques may be effective in redistributing nesting cormorants away from areas where fish stocks of conservation concern are susceptible to predation, especially if sites with a recent history of cormorant nesting are available within their foraging or dispersal range.
Suryan, R. M., D. P. Craig, D. D. Roby, N. D. Chelgren, K. Collis, W. D. Shufford, and D. E. Lyons. 2004. Redistribution and growth of the Caspian tern population in the Pacific Coast Region of North America, 1981-2000. Condor 106:777-790.	October 2004
Suryan, R. M., D. B. Irons, M. Kaufman, P. G. R. Jodice, D. D. Roby, J. Benson, and E. D. Brown. 2002. Short-term fluctuations in forage fish availability and the effect on prey selection and brood-rearing in the black-legged kittiwake. Marine Ecology Progress Series 236:273-287.	February 2002
Suryan, R. M., D. B. Irons, E. D. Brown, P. G. R. Jodice, and D. D. Roby. 2006. Site-specific effects on productivity of an upper trophic-level marine predator: Bottom-up, top-down, and mismatch effects on reproduction in a colonial seabird. Progress in Oceanography 68:303-328.	June 2006
Sullivan, L., Jones, M. S., Jimenez, M. F., Dodgson, K. R., & Storrs, E. L. (2022). Justice discourses in the mainstream environmental movement, 30 years after the SWOP letter. Environmental Justice. https://doi.org/10.1089/env.2022.0025 \| Abstract \| Publisher Website	November 2022	Calls for the mainstream environmental movement to engage more closely with the work of social justice have been pervasive for over three decades, marked by demands for large environmental organizations to diversify their staff and center the voices of those living in frontline communities. These calls, first made prominent by the Southwest Organizing Project (SWOP) in 1990, have grown in intensity in recent years as rampant inequalities compound environmental crises, illustrating that environmental protection cannot be decoupled from social justice. In this paper, we draw on public statements released by large environmental organizations in the wake of the 2020 Black Lives Matter protests to examine how their use of language around racial and social justice today reflects early calls for the environmental movement to address its own problematic legacies and align its aims with the work of environmental justice. Our findings suggest that organizations are leaning into four distinct discourses around justice that evoke ideas of <i>solidarity, heroism, internal reform, and redress of problematic legacies</i>, but also indicate a relative lack of attention to ideological or structural change within the movement. We explore the historical context of these findings, paying particular attention to the ways in which the neoliberalization of the non-profit sector over the last 30 years may have limited opportunities for more emancipatory discourses to emerge. We conclude with a call for mainstream environmental organizations to revisit the SWOP letter and explore new ways to couple internal cultural change with deeper institutional reform.
Strange, R. J., and C. B. Schreck. 1980. Seawater and confinement alters survival and cortisol concentration in juvenile chinook salmon. Copeia 1980:351-353.	January 1980
Stone, S. L., and C. B. Schreck. 1994. Behavioral responses of juvenile coho salmon (Oncorhynchus kisutch) exposed to pulp mill effluents. Bulletin of Environmental Contamination and Toxicology 52:355-359.	January 1994
Stewart, H.A., D.L.G. Noakes, K.M. Cogliati, J.T. Peterson, M.H. Iversen, and C.B. Schreck. 2016. Salinity effects on plasma ion levels, cortisol, and osmolality in Chinook salmon following lethal sampling. Comparative Biochemistry and Physiology, Part A. 192:38-43.	October 2016
Stevens, J. B., R. M. Adams, D. Barkley, L. W. Kiest, C. J. Landry, L. Newton, F. W. Obermiller, G. M. Perry, H. S. D. Radtke, H. Seely, B. P. Turner, H. W. Li, and D. J. Walks. 2000. Benefits, costs, and local impacts of market-based stream flow enhancements: The Deschutes River, OR. Rivers (7):89-108.	January 2000
Steidl, R. J., and R. G. Anthony. 2000. Experimental effects of human activity on breeding bald eagles. Ecological Applications 10:258-268.	January 2000
Stefansson, S. O., P. McGinnity, B. T. Bjornsson, C. B. Schreck, and S. D. McCormick. 2003. The importance of smolt development to salmon conservation, culture, and management: perspectives from the 6th international workshop on salmonid smoltification. Aquaculture 222:1-14.	January 2003
Specker, J. L., and C. B. Schreck. 1984. Thyroidal response to mammalian thyrotropin during smoltification. Comparative Biochemistry and Physiology 78A:441-444.	January 1984
Specker, J. L., and C. B. Schreck. 1984. Influence of ambient salts on plasma thyroxine concentration in juvenile coho salmon. Transactions American Fisheries Society 113:90-94.	January 1984
Specker, J. L., and C. B. Schreck. 1982. Changes in plasma corticosteroids during smoltification of coho salmon, (Oncorhynchus kisutch). General and Comparative Endocrinology 46:53-58.	January 1982
Specker, J. L., and C. B. Schreck. 1980. Stress response to transportation and fitness for marine survival in coho salmon (Oncorhynchus kisutch) smolts. Canadian Journal Fisheries and Aquatic Sciences 37:765-769.	January 1980
Sower, S. A., and C. B. Schreck. 198l. Sexual maturation of coho salmon (Oncorhynchus kisutch): induced ovulation and serum hormone and ion levels of salmon in fresh versus salt water. Salmonid Broodstock Maturation Proceedings, Washington Sea Grant WSG-W080-1:46.	January 1981
Sower, S. A., and C. B. Schreck. 1982. Steroid and thyroid hormones during sexual maturation of coho salmon (Oncorhynchus kisutch) in seawater or fresh water. General and Comparative Endocrinology 47:42-53.	January 1982
Sower, S. A., and C. B. Schreck. 1982. In vitro induction of final maturation of oocytes in coho salmon and steelhead trout. Transactions American Fisheries Society 111:399-403.	January 1982
Sower, S. A., and C. B. Schreck. 1981. Sexual maturation of coho salmon (Oncorhynchus kisutch): accelerated ovulation and circulating steroid hormone and ion levels of salmon in fresh water and sea water. Proceedings North Pacific Aquaculture Symposium. Page 22.	January 1981
Sower, S. A., C. B. Schreck, and M. Evenson. 1983. Effects of steroids and steroid antagonists on growth, gonadal development, and RNA/DNA ratios in juvenile steelhead trout. Aquaculture 32:243-254.	January 1983
Sower, S. A., C. B. Schreck, and E. M. Donaldson. 1982. Hormone induced ovulation of coho salmon (Oncorhynchus kisutch) held in seawater and fresh water. Canadian Journal Fisheries and Aquatic Sciences 39:627-632.	January 1982
Sovern, S.G., E.D. Forsman, K.M. Dugger, and M.Taylor. 2015. Habitat use by northern spotted owls during natal dispersal. Journal of Wildlife Management 79:254-262.	January 2015
Sovern, S.G., D.B. Lesmeister, K.M. Dugger, M.S. Pruett, R.J. Davis, and J.M. Jenkins. 2019. Activity Center Selection by Northern Spotted Owls. Journal of Wildlife Management 83:714-727; https://doi.org/10.1002/jwmg.21632	January 2019
Somers, LN, DH Jackson, KM Dugger, and JD Burco. 2023. A mixture of Nalbuphine, Azaperone, and Medetomidine for Immobilizing Ringtail (Bassariscus astutus). Journal of Wildlife Diseases. Journal of Wildlife Diseases 59(4):610-615. DOI: 10.7589/JWD-D-23-00006. \| Download	October 2023
Smith, W. P., J. R. Waters, R. G. Anthony, N. B. Dodd, and C. J. Zabel. 2003. Econology and conservation of arboreal mammals. In Zabel, C. J., and R. G. Anthony (eds. ). Mammal Community Dynamics: Management and Conservation in the Coniferous Forests of Western North America. Cambridge University Press, New York NY.	January 2003
Slater, C. H., and C. B. Schreck. 1998. Season and physiological parameters modulate salmonid leucocyte androgen receptor affinity and abundance. Fish and Shellfish Immunology 8:379-391.	January 1998
Slater, C. H., and C. B. Schreck. 1997. Physiological levels of testosterone kill salmonid leukocytes, in vitro. General and Comparative Endocrinology 106:113-119.	January 1997
Slater, C. H., and C. B. Schreck. 1993. Testosterone alters the immune response of chinook salmon (Oncorhynchus tshawytscha). General and Comparative Endocrinology 89:291-298.	January 1993
Slater, C. H., M. S. Fitzpatrick, and C. B. Schreck. 1995. Androgens and immunocompetence in salmonids: specific binding in and reduced immunocompetence of salmonid lymphocytes exposed to natural and synthetic androgens. Aquaculture 136:363-370.	January 1995
Slater, C. H., M. S. Fitzpatrick, C. B. Schreck. 1995. Characterization of an androgen receptor in salmonid lymphocytes: possible link to androgen induced immunosuppression. General and Comparative Endocrinology 100:218-225.	January 1995
Slater, C. H., C. B. Schreck, and S. A. Sower. 1999. Rapid Clearance of D-Ala6-Pro9NEt mammalian gonadotropin releasing hormone from chinook salmon plasma. North American Journal of Aquaculture. 61:315-318.	November 1999
Slater, C. H., C. B. Schreck, and P. Swanson. 1994. Plasma profiles of the sex steroids and gonadotropins in maturing female spring chinook salmon (Oncorhynchus tshawytscha). Comparative Biochemistry and Physiology 109A:167-175.	January 1994
Slater, C. H., C. B. Schreck, and D. F. Amend. 1995. GnRHa injection accelertes final maturation and ovulation/sperimiation of sockeye salmon (Oncorhynchus nerka) in both fresh and salt water. Aquaculture 130:279-285.	January 1995
Sink, CE, KM Dugger, CA Hagen and JN Vradenburg. 2024. Living on the edge: identifying demographic bottlenecks in an isolated sage-grouse population. Wildlife Biology 2024: e01242, https://doi.org/10.1002/wlb3.01242.	September 2024
Shippentower, G., C.B. Schreck, and S.A. Heppell. 2011. Who’s your momma? Recognizing maternal origin of juvenile steelhead using injections of strontium chloride to create trans-generational marks. Transactions of the American Fisheries Society 140:1330-1339.	December 2011
Sheffield, L. M., A. E. Gall, D. D. Roby, D. B. Irons, and K. M. Dugger. 2006. Monitoring planktivorous seabird populations: Validating surface counts of crevice-nesting auklets using mark-resighting. Canadian Journal of Zoology 84:846-854.	July 2006
Shea, C.P., J.T. Peterson, M.J. Conroy, and J.M Wisnewski. 2013. MODELING THE OCCURRENCE OF FRESHWATER MUSSELS WHILE ACCOUNTING FOR INCOMPLETE DETECTION AND MISIDENTIFICATION OF SPECIES. Freshwater Biology 58: 382–395 \| Abstract	February 2013	North American freshwater mussels have been subjected to multiple stressors in recent decades that have contributed to declines in the status and distribution of many species. However, considerable uncertainty exists regarding the relative influence of these factors on freshwater mussels. To evaluate the relative influence of natural and anthropogenic factors on freshwater mussels, we developed statistical models relating mussel species occurrence to various site- and landscape-level factors, including land use, stream size, the occurrence of drought, and reach isolation due to impoundment for 21 mussel species native to the Flint River Basin, Georgia. These models accounted for potential biases associated with both incomplete detection and misidentification of mussel species. Modeling results suggested that mussel species occupancy was strongly and negatively related to drought and reach isolation by impoundment. Mussel species were, on average, 4× less likely to be present following severe drought, but the negative effects of drought declined rapidly with increasing stream size. Similarly, mussel species were, on average, 15× less likely to occupy small streams that were isolated from mainstem tributaries by impoundments. This study provides insight into the effects of natural and anthropogenic factors on freshwater mussel populations and provides a useful tool for identifying locations within the lower Flint River Basin that may harbor populations of rare species or especially diverse mussel assemblages, thereby allowing managers to develop more informed and effective conservation strategies.
Shea, C.P, J.T. Peterson, and J. M Wisniewski. Misidentification of Freshwater Mussel Species (Bivalvia:Unionidae): Contributing Factors, Management Implications, and Potential Solutions. Journal of the North American Benthological Society 30(2):446-458	April 2011
Sharpe, C. S., D. A. Thompson, H. L. Blankenship, and C. B. Schreck. 1998. Effects of Routine Handling and Tagging Procedures on Physiological Stress Responses in Juvenile Chinook Salmon. American Fisheries Society 60(2):81-87.	January 1998
Seiser, P. E., L. K. Duffy, A. McGuire, D. D. Roby, G. H. Golet, and M. A. Litzow. 2000. Comparison of pigeon guillemot, Cepphus columba, blood parameters from oiled and unoiled areas of Alaska eight years after the Exxon Valdez oil spill. Marine Pollution Biology 40:152-164.	January 2000
Seals Price, C., and C. B. Schreck. 2003. Stress and saltwater entry behavior of juvenile chinook salmon (Oncorhynchus tshawytscha): conflict in physiological motivation. Canadian Journal of Fisheries and Aquatic Sciences 60:910-918.	October 2003
Seals Price, C. S., and C. B. Schreck. 2003. Effects of bacterial kidney disease on saltwater preference of juvenile spring chinook salmon, Oncorhynchus tshawytscha. Aquaculture 222:331-341.	January 2003
Schwindt, A.R., M.L. Kent, L.K. Ackerman, S.L. Massey Simonich, D.H. Landers, T. Blett, and C.B. Schreck. 2009. Reproductive abnormalities in trout from western U.S. National parks. Transactions of the American Fisheries Society. 138:522-531.	January 2009
Schwindt, A., G. Feist and C. B. Schreck. 2007. Stress does not Inhibit Induced Vitellogenesis in Juvenile Rainbow Trout. Environmental Biology of Fish 80:453-463.	October 2007
Schwindt, A. R., N. Truelove, C. B. Schreck, J. W. Fournie, D. H. Landers, and M. L. Kent. 2006. Quantitative evaluation of macrophage aggregates in brook trout (Salvelinus fontinalis) and rainbow trout (Oncorhynchus mykiss). Diseases of Aquatic Organisms. 68:101-113.	January 2006
Schwindt, A. R., J. W. Fournie, D. H. Landers, C. B. Schreck and M. L. Kent. 2008. Mercury Concentrations in Salmonids from Western US National Parks and Relationships with Age and Macrophage Aggregates. Environmental Science and Technology 42:1365-1370.	January 2008
Schuyler, E.M., K.M. Dugger, and D.H. Jackson. 2018. Effects of Distribution, Behavior, and Climate on Mule Deer Survival. Journal of Wildlife Management 000:000-000, DOI: 10.1002/jwmg.21558	August 2018
Schuyler, E.M., C. A. Hagen, C. R. Anthony, L. J. Foster, and K. M. Dugger. 2022. Habitat recovery after large-scale wildfire leads to mismatch in space use by sagebrush obligate. Ecosphere 2022;13:e4179. https://doi.org/10.1002/ecs2.4179.	September 2022
Schuster, C.J., T. Kreul, E. Al-Samarrie, J.T. Peterson, J.L. Sanders, M.L. Kent. Progression of infection and detection of Pseudoloma neurophilia in zebrafish Danio rerio Hamilton by PCR and histology. Journal of Fish Diseases https://doi.org/10.1111/jfd.13675 \| Abstract \| Publisher Website	July 2022	<i>Pseudoloma neurophilia</i> is an important threat to the zebrafish (<i>Danio rerio</i>) model, as it is the most common infectious agent found in research facilities. This parasite can cause clinical disease, but more importantly is a causative agent of non-protocol induced variation in research utilizing zebrafish as an animal model. In this study, we tracked the progression of infection using PCR and histological diagnostic tests. The first experiment compared the application of diagnostic tools for detection of <i>P. neurophilia</i> and showed that whole-body analysis by qPCR (WB-qPCR) can be a standardized process and is comparable to previously published assays using neural tissue. We also evaluated the course of infection in experimentally infected fish, revealing that WB-qPCR is much more sensitive than histology. the parasite was detectable as early as 4 days post exposure (dpe) with WB-qPCR, whereas it was undetected by histology until 92 dpe. In this study, we also added a second slide for histologic analyses, and this increased detection in our combined data set from experiments from 24% to 26%.
Schuster, C.J., M.L. Kent, J. Peterson, and J.L. Sanders. 2022. Multi-state occupancy model estimates probability of detection of an aquatic parasite using environmental DNA: Pseudoloma neurophilia in zebrafish aquaria. Journal of Parasitology https://doi.org/10.1101/2022.02.16.480730 \| Abstract \| Publisher Website	July 2022	<i>Pseudoloma neurophilia</i> is the most common pathogen reported in zebrafish (<i>Danio rerio</i>) research facilities. Assays for prevalent zebrafish pathogens are continually expanding, however for <i>P. neurophilia</i>, the only diagnostic methods available are through lethal sampling, often requiring euthanasia of the entire population for accurate estimates of prevalence in small populations. Thus, there is a need to develop non-lethal screening methods that are both sensitive and informative. Here, we describe a nonlethal assay to detect <i>Pseudoloma neurophilia</i> in tank water using a previously developed qPCR assay that was adapted to the droplet digital PCR (ddPCR) platform. The assay detected concentrations as low as 77.5 spores/L and was specific for<i> P. neurophilia.</i> The assay was then validated by testing water from five tanks with infected zebrafish over a three-month period. Each tank was tested using three different water sampling methods: water from flowing tanks, static water, or water from static spawning events. Prevalence data and occupancy modeling revealed that samples collected in static conditions were more informative than samples from flow-through conditions, with prevalence of positive samples at 80% or higher compared to 47%, respectively. Prevalence of positive water samples correlated with prevalence of infection in fish, determined by qPCR.
Schreck, C.B. 2010. Stress and fish reproduction: the roles of allostasis and hormesis. General and Comparative Endocrinology 165:549-556	February 2010
Schreck, C.B, D. D. Roby, K. Dugger, and J. Peterson. 2015. Meeting Cooperator Needs: Examples from the Oregon Cooperative Fish and Wildlife Research Unit. Transactions of the North American Wildlife and Natural Resources Conference 80. Omaha, NE.	July 2015
Schreck, C. B., and R. Patino. 1982. Effects of rearing density on performance indices of Eagle Creek coho salmon. Proceedings 33rd Northwestern Fish-Culture Conference, National Marine Fisheries Service. Pages 203-212.	January 1982
Schreck, C. B., and P. B. Moyle. 1990. Methods for Fish Biology. American Fisheries Society, approx. Page 550.	January 1990
Schreck, C. B., and M. S. Fitzpatrick. 1986. The ABC's of induced spawning. Proceedings Northwest Fish Culture Conference. Page 12.	January 1986
Schreck, C. B., and L. G. Fowler. 1982. Growth and reproductive development in fall chinook salmon: effects of sex hormones and their antagonists. Aquaculture 26:253-263.	January 1982
Schreck, C. B., and H. W. Li. 1991. Performance capacity of fish: Stress and water quality. In: D. E. Brune and J. R. Tomasso (Editors). Aquaculture and water quality. World Aquaculture Society, Baton Rouge, LA. Advances in World Aquaculture 3:21-29.	January 1991
Schreck, C. B., and C. S. Bradford. 1990. Interrenal corticosteroid production: Potential regulation by the immune system in the salmonid. Pages 480-486. In: A. Epple (Editor). XI International Symposium Comparative Endocrinology. Alan R. Liss, Inc., New York.	January 1990
Schreck, C. B., and A. G. Maule. 2001. Are the endocrine and immune systems really the same thing? Pages 351-357 in H. J. T. Goos, R. K. Rostogi, H. Vaudry, and R. Pierantoni (Editors). Monduzzi Editore, Naples (CD ROM Book)	January 2001
Schreck, C. B., W. Contreras-Sanchez and M. S. Fitzpatrick. 2001. Effects of stress on fish reproduction, gamete quality and progeny. Aquaculture 197:3-24.	January 2001
Schreck, C. B., T. Stahl, L. Davis, and B. Clemens. 2006. Mortality estimates of juvenile spring/summer Chinook in the lower Columbia River and estuary, 1992-1998: evidence for delayed mortality? Transactions of the American Fisheries Society. 135:457-475.	January 2006
Schreck, C. B., T. Stahl, L. Davis and B. Clemens. In Press. Mortality estimates of juvenile spring/summer chinook in the lower Columbia River and estuary, 1992-1998: evidence for delayed mortality? Transactions of the American Fisheries Society.	September 2006
Schreck, C. B., T. P. Stahl, L. E. Davis, D. D. Roby, and B. J. Clemens. 2006. Mortality of juvenile spring-summer Chinook salmon in the lower Columbia River and estuary, 1992-1998: Evidence for delayed mortality? Transactions of the American Fisheries Society 135:457-475.	June 2006
Schreck, C. B., R. Patino, C. K. Pring, J. R. Winton, and J. E. Holway. 1985. Effects of rearing density on indices of smoltification and performance of coho salmon, Oncorhynchus kisutch. Aquaculture 45:345-358.	January 1985
Schreck, C. B., M. S. Fitzpatrick, and K. P. Currens. 1995. Management of Pacific salmon broodstocks. Pages 197-219. In: N. Bromage and R. Roberts (Editors). Broodstock and egg and larval quality. Blackwell Science, Ltd. Oxford.	January 1995
Schreck, C. B., M. S. Fitzpatrick, G. W. Feist, and C. -G. Yeoh. 1991. Steroids: Developmental continuum between mother and offspring. Pages 256-258. In: A. P. Scott, J. P. Sumpter, D. E. Kime, and M. S. Rolfe (Editors). Proc. 4th International. Symposium. Reproductive. Physiology Fish. Sheffield, England.	January 1991
Schreck, C. B., M. F. Solazzi, S. L. Johnson, and T. E. Nickelson. 1989. Transportation affects performance of coho salmon. Aquaculture 82:15-20.	January 1989
Schreck, C. B., L. Jonsson, G. Feist, and P. Reno. 1995. Conditioning improves performance of juvenile chinook salmon, Oncorhynchus tshawytscha, to transportation stress. Aquaculture 135:99-110.	January 1995
Schreck, C. B., C. S. Bradford, M. S. Fitzpatrick, and R. Patino. 1989. Regulation of the interrenal in fishes: non-classical control mechanisms. Fish Physiology and Biochemistry 7:259-265.	January 1989
Schreck, C. B., B. L. Olla, and M. W. Davis. 1997. Behavioral responses to stress. Pages 745-770. In: G. W. Iwama, J. Sumpter, A. D. Pickering, and C. B. Schreck (Editors). Fish Stress and health in aquaculture. Cambridge University Press, Cambridge.	January 1997
Schreck, C. B., A. G. Maule, and S. L. Kaattari. 1993. Stress and disease resistance. Pages 170-175. In: J. F. Muir and R. J. Roberts (Editors). Recent Advances in Aquaculture. Blackwell Scientific Publications, London.	January 1993
Schreck, C. B., A. G. Maule, and S. L. Kaattari. 1989. Stress and disease resistance. Pages 177-181 in M. Carrillo, S. Zanuy, and J. Planas (compilers). Proceedings Satellite Symposium, Applications of Comparative Endocrinology to Fish Culture. Imprente Vilaro, Barcelona, Spain.	January 1989
Schreck, C. B. 2007. Fish, Stress in. Pages 68-72. In: G. Fink (Editor). Encyclopedia of Stress. Vol. 2. Academic Press, San Diego.	January 2007
Schreck, C. B. 2000. Stress in fish. Pages 149-152 in G. Fink (editor). Encyclopedia of Stress Volume 2. Acdemic Press, San Diego CA.	January 2000
Schreck, C. B. 2000. Accumulation and long-term effects of stress in fish, pp. 147-158. In: G. Moberg and J. Mench (Editors). The Biology of Animal Stress. C. A. B. International Press, Wallingford UK.	January 2000
Schreck, C. B. 1996. Immunomodulation: endogenous factors. Pages 311-337. In: G. Iwama and T. Nakanishi (Editors). Hoar and Randall's Fish Physiology, vol. 15. Academic Press, New York.	January 1996
Schreck, C. B. 1995. Book review: Salmon aquaculture. Aquaculture 134:185-186.	January 1995
Schreck, C. B. 1992. In Memoriam Professor Gabriele Peters. Diseases of Aquatic Organisms 14:161.	January 1992
Schreck, C. B. 1992. Glucocorticoids: Metabolism, growth, and development. Pages 367-392. In: M. P. Schreibman, C. G. Scanes, and P. K. T. Pang (Editors). The endocrinology of growth, development and metabolism in vertebrates. Academic Press, New York.	January 1992
Schreck, C. B. 1991. Approach to facility design/modifications: stress monitoring of migratory salmonids. Fishery Bioengineering Symposium, American Fisheries Society Symposium 10:347-351.	January 1991
Schreck, C. B. 1990. Physiological, behavioral, and performance indicators of stress. American Fisheries Society Symposium 8:29-37.	January 1990
Schreck, C. B. 1987. Stress measurement. Pages 89-96. In: G. R. Bouck (Editor). Proceedings Improving Hatchery Effectiveness as Related to Smoltification (May 1985). U. S. Department of Energy, Bonneville Power Administration.	January 1987
Schreck, C. B. 1983. A review: Environmental Physiology of Fishes, edited by M. A. Ali. Transactions American Fisheries Society 112:839-840.	January 1983
Schreck, C. B. 1982. Stress and rearing of salmonids. Aquaculture 28:241-249.	January 1982
Schreck, C. B. 1982. Parr-smolt transformation and behavior. Pages 164-172. In: E. L. Brannan and E. O. Salo (Editors). Proceedings Salmon and Trout Migratory Behavior Symposium, University of Washington, Seattle.	January 1982
Schreck, C. B. 1981. Stress and compensation in teleostean fishes: response to social and physical factors. Pages 295-321. In: A. D. Pickering (Editor). Stress and Fish. Academic Press, London.	January 1981
Schreck, C. B. 1980. Research perspectives for management of wild steelhead trout. Proceedings 2nd Wild Trout Symposium, Yellowstone National Park, U. S. Fish and Wildlife Service 1979:26-31.	January 1980
Schreck, C. B. 1980. Potential impact of alterations in streamflow and water quality on fish and macroinvertebrates in the Upper Colorado River Basin: a discussion. Pages 155-162. In: W. O. Spofford Jr., A. L. Parker, and A. V. Kneese (Editors). The impact of energy development on the waters, fish, and wildlife in the Upper Colorado River Basin. Resources for the Future, Washington, DC. Vol. 2(R-18).	January 1980
Schreck, C. B. 1979. Aquatic weed control in a potable water reservoir. Pages 207-214. In: E. O. Gangstad (Editor). Weed control methods for recreation facilities management. Chemical Rubber Corporation Press, West Palm Beach, FL.	January 1979
Schmidt, AE, A Lescroël, S Lisovski, M Elrod, D Jongsomjit, KM Dugger, and G Ballard. 2023. Sea ice concentration decline in an important Adélie penguin molt area. Proceedings of the National Academy of Sciences 120 (46) e2306840120 https://doi.org/10.1073/pnas.2306840120.	November 2023
Schmidt, A.E., G. Ballard, A. Lescroël, K. M. Dugger, D. Jongsomjit, M.L. Elrod, D.G. Ainley. 2021. The influence of subcolony-scale nesting habitat on reproductive success of Adélie penguins. Scientific Reports 11:15380, https://doi.org/10.1038/s41598-021-94861-7.	August 2021
Schilling, J.W., K.M. Dugger and R.G. Anthony. 2013. Survival and home-range size of northern spotted owls in southwestern Oregon. Journal of Raptor Research 47:1-14.	March 2013
Scheerer, P.D., J.T. Peterson, and S. Clements. 2017. Distribution and abundance of Millicoma Dace in the Coos River Basin, Oregon. Northwestern Naturalist. 98: 39-47.	July 2017
Scheerer, P.D, S. Clements, S.E. Jacobs, and J.T. Peterson. 2016.Status, Distribution, and Life History of the Warner Sucker in Southeastern Oregon. Northwestern Naturalist 97(3):205-225	July 2016
Rubin, SP, MJ Davis, EE Grossman, I Woo, SEW De La Cruz, G Nakai, and JY Takekawa. 2024. Benthic macroinvertebrate response to estuarine emergent marsh restoration across a delta-wide environmental gradient. Frontiers in Ecology and Evolution 12:xx-xx. https://doi.org/10.3389/fevo.2024.1356679	April 2024
Rowe, J.C., A. Duarte, C.C. Pearl, B. McCreary, S. Galvan, J.T.Peterson, M.J. Adams. 2019. Disentangling effects of invasive species and habitat while accounting for observer error in a long-term amphibian study. Ecosphere	August 2019
Rosenberg, D. K. K. A. Swindle, and R. G. Anthony. 2003. Influence of prey abundance on northern spotted owl reproductive success in western Oregon. Canadian Journal of Zoology 81:1715-1725.	October 2003
Rosen, MR, SEW De La Cruz, KD Groover, I Woo, SA Roberts, MJ Davis, and CY Antonino. 2023. Selenium hazards in the Salton Sea environment—summary of current knowledge to inform future wetland management. USGS Scientific Investigations Report 2023-5042. https://doi.org/10.3133/sir20235042	July 2023
Romano, M. D., J. F. Piatt, and D. D. Roby. 2006. Testing the junk food hypothesis on marine birds: effects of prey type on growth and development. Waterbirds 29:407-414.	December 2006
Rockweit, JT, KM Dugger, DB Lesmeister, RJ Davis, AB Franklin, and JM Highley. 2024. Changing Fire Regimes and Nuanced Impacts on a Critically Imperiled Species. Biological Conservation 296 (2024) 110701, DOI:10.1016/j.biocon.2024.110701. \| Download	July 2024
Rockweit, JT, JM Jenkins, JE Hines, JD Nichols, KM Dugger, AB Franklin, PC Carlson, WL Kendall, DB Lesmeister, C McCafferty, SH Ackers, LS Andrews, LL Bailey, JB, KP Burnham, T Chestnut, MM Conner, KE Dilione, RJ Davis, ED Forsman, EM Glenn, SA Gremel, KA Hamm, DR Herter, JM Higley, RB Horn, DW Lamphear, TL McDonald, JA Reid, CJ Schwarz, DC Simon, SG Sovern, JK Swingle, JD Wiens, H Wise, and CB Yackulic. 2022. Range-wide Sources of Variation in Reproductive Rates of Northern Spotted Owls. Ecological Applications 000:000-000, doi:10.1002/eap.2726.	August 2022
Roby, D.D. 2015. Book Review: The Double-crested Cormorant, Plight of a Feathered Pariah, by L.R. Wires. The Auk: Ornithological Advances 132:315-317.	January 2015
Roby, D. D., K. Collis, and D. E. Lyons. 2005. Conservation and management for fish-eating birds and endangered salmon. Pp. 161-165 in C. J. Ralph and T. D. Rich (eds. ). Bird conservation implementation and integration in the Americas: Proceedings of the Third International Partners in Flight Conference. USDA Forest Service Gen. Tech. Rep. PSW-GTR-191.	October 2005
Roby, D. D., K. Collis, and D. E. Lyons. 2003. Conservation and management for fish-eating birds and endangered salmon. Proceedings of the Third International Partners in Flight Conference, USDA Forest Service. Gen. Tech. Rep. PSW-GTR-191.	January 2003
Roby, D. D., K. Collis, D. E. Lyons, D. P. Craig, and M. Antolos. 2003. Caspian Tern Sterna caspia. Pages in Birds of Oregon: A General Reference. D. B. Marshall, M. G. Hunter, and A. L. Contreras (eds. ). Oregon State University Press, Corvallis, OR.	January 2003
Roby, D. D., K. Collis, D. E. Lyons, D. P. Craig, J. Y. Adkins, A. M. Myers, and R. M. Suryan. 2002. Effects of colony relocation on diet and productivity of Caspian terns. Journal of Wildlife Management 66:662-673.	October 2001
Roby, D. D., D. E. Lyons, D. P. Craig, K. Collis, and G. H. Visser. 2003. Quantifying the effect of predators on endangered species using a bioenergetics approach: Caspian terns and juvenile salmonids in the Columbia River estuary. Canadian Journal of Zoology 81:250-265.	January 2003
Robison, V., Jones, M., Erickson, B., & Biedenweg, K. (2024). Communication Approaches and Specialists that Can Improve Fisheries Management. Fisheries, 49(7), 319-326. https://doi.org/10.1002/fsh.11090 \| Abstract	April 2024	This paper aims to expand fisheries managers’ and scientists’ understanding of how the science of communication can facilitate effective fisheries management. To do this, in this paper we define and create distinctions around common but often conflated fisheries communication approaches: Outreach, Education, Social Marketing, and Engagement. Further, we explain key scientific principles that support each communication approach and offer practical examples of their application. Finally, we highlight different communication research fields that can produce science that practitioners can use in their fisheries communication. These explanations support our claim that communication is required to meet the professional needs of fisheries managers but must also meet the needs of their audiences.
Rizzolo, D. J., D. Esler, D. D. Roby, and R. L. Jarvis. 2005. Do wintering Harlequin Ducks forage nocturnally at high latitudes? Condor 107:173-177.	April 2005
Ripple, W. J., K. T. Hershey, and R. G. Anthony. 2000. Historical forest patterns of Oregon's Coast Range. Biological Conservation 93:127-133.	January 2000
Ricca, M. A., R. G. Anthony, and D. Jackson. 2004. Bald eagles consume Emperor Geese during late-winter in the Aleutian Archipelago. Journal of Raptor Research 38:81-85.	September 2004
Ricca, M. A., R. G. Anthony, D. H. Jackson, and S. A. Wolfe. 2003. Spatial use and habitat associations of Columbian white-tailed deer fawns in southwestern Oregon. Northwest Science 77:72-80.	January 2003
Ricca, M. A., R. G. Anthony, D. H. Jackson, and S. A. Wolfe. 2002. Survival of Columbian white-tailed deer in western Oregon. Journal of Wildlife Management 66:1255-1266.	October 2002
Ricca, M. A., A. K. Miles, R. G. Anthony, X. Deng, and S. S. O. Hung. 2007. Effect of lipid extraction on analyses of stable carbon and stable nitrogen isotopes in coastal organisms of the Aleutian Archipelago. Canadian Journal of Zoology 85:40-48.	September 2007
Ricca, M. A., A. K. Miles and R. G. Anthony. 2008. Sources of Organochlorine Contaminants and Mercury in Seabirds from the Aleutian Archipelago of Alaska: Inferences for Spatial and Trophic Variation. Science of the Total Environment 10:1-16.	August 2008
Reinkensmeyer, D. P., R. F. Miller, R. G. Anthony, and V. E. Marr. 2007. Avian community structure along a Mountain Big Sagebrush Successional gradient. Journal of Wildlife Management 71:1057-1066.	September 2007
Reinkensmeyer, D. P., R. F. Miller, R. G. Anthony, V. E. Marr and C. M. Duncan. 2008. Winter and Early Spring Bird Communities in Grasslands, Shrubsteppe, and Juniper Woodlands in Central Oregon. Western North American Naturalist 68:25-35.	April 2008
Rehnberg, B. G., and C. B. Schreck. 1987. Olfactory sensitivity of coho salmon, Oncorhynchus kisutch (Walbaum): can salinity play a role? Journal of Fish Biology 31:305-307.	January 1987
Rehnberg, B. G., and C. B. Schreck. 1987. Chemosensory detection of predators by coho salmon (Oncorhynchus kisutch): behavioral reaction and the physiological stress response. Canadian Journal Zoology 65:481-485.	January 1987
Rehnberg, B. G., and C. B. Schreck. 1986. The olfactory L-serine receptor in coho salmon: biochemical specificity and behavioral response. Journal Comparative Physiology A159:61-67.	January 1986
Rehnberg, B. G., and C. B. Schreck. 1986. Acute metal toxicology of olfaction in coho salmon: behavior, receptors, and odor-metal complexation. Bulletin Environmental Contamination and Toxicology 36:579-586.	January 1986
Rehnberg, B. G., L. Curtis, and C. B. Schreck. 1985. Homing of coho salmon (Oncorhynchus kisutch) exposed to morpholine. Aquaculture 44:253-255.	January 1985
Rehnberg, B. G., B. Jonasson, and C. B. Schreck. 1985. Olfactory sensitivity during parr and smolt developmental stages of coho salmon. Transactions American Fisheries Society 114:732-736.	January 1985
Redding, J. M., and C. B. Schreck. 1984. Influence of ambient salinity on osmoregulation and cortisol concentration in yearling coho salmon during stress. Transactions American Fisheries Society 112:800-807.	January 1984
Redding, J. M., and C. B. Schreck. 1979. Possible adaptive significance of certain enzyme polymorphisms in steelhead trout (Salmo gairdneri). Journal Fisheries Research Board Canada 36:544-55l.	January 1979
Redding, J. M., R. Patino, and C. B. Schreck. 1991. Cortisol effects on plasma electrolytes and thyroid hormones during smoltification in coho salmon (Oncorhynchus kisutch). General and Comparative Endocrinology 81:373-382.	January 1991
Redding, J. M., R. Patino, and C. B. Schreck. 1984. Clearance of corticosteroids in yearling coho salmon, Oncorhynchus kisutch, in fresh water and seawater and after stress. General and Comparative Endocrinology 54:433-443.	January 1984
Redding, J. M., M. S. Fitzpatrick, G. Feist, and C. B. Schreck. 1987. Sex reversal by estradiol-17� and androgens in Pacific salmon. Proceedings 3rd International Symposium Reproductive Physiology of Fish, St. Johns, Newfoundland. Page 136.	January 1987
Redding, J. M., M. S. Fitzpatrick, G. Feist, and C. B. Schreck. 1987. Sex reversal by estradiol-17? and androgens in Pacific salmon. Proceedings 3rd International Symposium Reproductive Physiology of Fish, St. Johns, Newfoundland. Page 136.	January 1987
Redding, J. M., C. B. Schreck, and F. H. Everest. 1987. Physiological effects on coho salmon and steelhead of exposure to suspended solids. Transactions American Fisheries Society 116:737-744.	January 1987
Redding, J. M., C. B. Schreck, E. K. Birks, and R. D. Ewing. 1984. Cortisol and its effects on plasma thyroid hormone and electrolyte concentrations in fresh water and during seawater acclimation in yearling coho salmon, Oncorhynchus kisutch. General and Comparative Endocrinology 56:146-155.	January 1984
Ramsay, J. M., G. W. Feist, Z. M. Varga, M. Westerfield, M. L. Kent, and C. B. Schreck. 2006. Whole-body cortisol is an indicator of crowding stress in adult Zebrafish, Danio rerio. Aquaculture 258: 565-574.	January 2006
Pribyl, A.L., M.L. Kent, S.J. Parker, and C.B. Schreck. 2011. The response to forced decompressin in six species of Pacific rockfish. Transactions of the American Fisheries Society. 140:374-383	January 2011
Powell, L.A., A.J. Tyre, M.J. Conroy, J.T. Peterson, and B.K. Williams. 2011 Integrating adaptive management into wildlife curricula. The Wildlife Professional 5(2): 74-76.	April 2011
Pirhonen, J., and C. B. Schreck. 2002. Effects of anaesthesia with MS-222, clove oil and CO2 on feed intake and plasma cortisol in steelhead trout (Oncorhynchus mykiss). Aquaculture 220:507-514.	October 2002
Pirhonen, J., C. B. Schreck, and A. Gannam. 2000. Appetite of chinook salmon (Oncorhynchus tshawytscha) naturally infected with bacterial kidney disease. Aquaculture 189:1-10.	January 2000
Pirhonen, J., C. B. Schreck, P. W. Reno, and H. Oggt. 2003. Effect of fasting on feed intake, growth and mortality of chinook salmon, Oncorhynchus tshawytscha, during an induced Aeromonas salmonicida epizootic. Journal of Fish Biology 216:31-38.	January 2003
Pirhonen, J, C. B. Schreck, and P. W. Reno. 2003. Can smolting be assessed by food intake in steelhead trout, Oncorhynchus mykiss (Walbaum)? Aquaculture Research 34. 1459-1463.	October 2003
Peterson, R. C., C. A. Jennings, and J. T. Peterson. 2012. River discharge effects on abundance of age-0 redhorses (Moxostoma spp.) in the Oconee River, Georgia, USA, with implications for robust redhorse. River Research and Application. 29:734-742.	March 2012
Peterson, J.T., P.D. Scheerer, S. Clements. 2015. An evaluation of the efficiency of minnow traps for estimating the abundance of minnows in desert spring systems. North American Journal of Fisheries Management. 35: 491-502.	May 2015
Peterson, J.T., J.M. Wisniewski, C.P. Shea, and C.R. Jackson. 2011. Estimation of mussel population response to hydrologic alteration in a Southeastern U.S. stream. Environmental Management 48:109-122.	July 2011
Peterson, J.T., J.A. Pease, L. Whitman, J. White, L. Stratton Garvin, S. Rounds, and R. Wallick. 2022. Integrated tools for identifying optimal flow regimes and evaluating alternative minimum flows for recovering at risk salmonids in a highly managed system. River Research and Applications 38: 293-308. https://doi.org/10.1002/rra.3903 \| Abstract \| Publisher Website	December 2021	Water resource managers are faced with difficult decisions on how to satisfy human water needs while maintaining or restoring riverine ecosystems. Decision sciences have developed approaches and tools that can be used to break down difficult water management decisions into their composite parts. An essential aspect of these approaches is the use of quantitative models to evaluate alternative management strategies. Here, we describe four integrated decision support models for evaluating the effect of flows on two life history stages of Chinook salmon (<i>Oncorhynchus tshawytscha</i>) and Steelhead trout (<i>O. mykiss</i>). We then use constrained nonlinear optimization to identify optimal flow regimes for the water year type with the least available water. These flow regimes were then used by managers to develop candidate minimum flow strategies that were evaluated using forward simulation and sensitivity analyses. We found that optimal flow regimes differed markedly from existing regulations and varied among species and life history stages. However, evaluation of tradeoffs among the four competing objectives indicated relatively minimal losses for most objectives when the optimal flows were based on equally weighting the objectives. Sensitivity analysis indicated that water temperature was the primary driver of estimated outcomes and suggested that managers consider alternative means of managing temperatures. Decision sciences have created multiple analytical tools and approaches that simplify complex problems, such as water resource management and we believe that water resource management would benefit from their increased use.
Peterson, J.T., E. McCreless, A. Duarte, P. Wohner, S. Hamilton, J. Medellin-Azuara, and A. Escriva-Bou. Structured Decision Making for Scientific Management in the San Francisco Bay-Delta. Environmental Science and Policy. 157, p.103775. https://doi.org/10.1016/j.envsci.2024.103775 \| Abstract \| Publisher Website	May 2024	A structured decision making (SDM) approach can help evaluate tradeoffs between conservation and human-benefit objectives by fostering communication and knowledge transfer among stakeholders, decision makers, and the public. However, the process is iterative and completing the full process may take years to accomplish. Thus, it can be difficult to initiate an SDM effort when problems seem insurmountable. In many instances, SDM may not even be the best or correct approach for addressing the conservation problem at hand. We describe the implementation of an SDM process to help inform difficult decisions related to competing objectives. We convened a diverse stakeholder group from the largest estuary in the western United States; the San Francisco Bay and Sacramento-San Joaquin Delta (Bay-Delta). The stakeholder group consisted of representatives from local, state, and federal agencies, non-profit organizations, and recreational fishermen. The stakeholder group agreed on a problem statement and identified four priority objectives related to Chinook salmon, delta smelt, water availability and reliability, and agricultural water use. Furthermore, they proposed 14 candidate management actions to achieve their objectives. The group then used existing quantitative models and data to evaluate trade-offs in proposed management actions to identify areas of agreement of proposed candidate actions. The clear communication of the problem statement and objectives among the stakeholder group, along with evaluation of tradeoffs and uncertainty via decision-support models suggest that SDM may work in the Bay-Delta. We further communicate lessons learned during our implementation of SDM to help guide future SDM efforts in the region and elsewhere.
Peterson, J.T. and M.F. Barajas. 2018. An evaluation of three fish surveys in the Bay-Delta, 1995-2015. San Francisco Estuary and Watershed Science 16:4	December 2018
Peterson, J.T. and M.C. Freeman.2016. Integrating Modeling, Monitoring, and Management to Reduce Critical Uncertainties in Water Resource Decision Making. Journal of Environmental Management 183(Pt 2):361-370. doi: 10.1016/j.jenvman.2016.03.015.	December 2016
Peterson, J.T. and C.P. Shea. 2015. An evaluation of the relations between flow regime components, stream characteristics, and species traits and meta-demographic rates of warmwater streams fishes: Implications for aquatic resource management. River Research and Applications 31: 1227–1241 \| Download	May 2015
Peterson, J.T. and A. Duarte. 2024. An evaluation of tradeoffs in restoring ephemeral vs. perennial habitats to conserve animal populations. Frontiers in Conservation Science, 5, p.1428697. https://doi.org/10.3389/fcosc.2024.1428697 \| Abstract \| Publisher Website	July 2024	Habitat loss and degradation pose significant threats to global fish and wildlife populations, prompting substantial investments in habitat creation and restoration efforts. Not all habitats provide equal benefits, leading to challenges in prioritizing restoration actions. For example, juvenile anadromous salmonids require high quality rearing aquatic habitats to achieve the physiological requirements needed to successfully migrate to the ocean. However, there are profound disagreements among anadromous salmon restoration managers whether it is best to focus efforts restoring in-channel habitats that are available for the entire rearing period or floodplain habitats that, while facilitating greater growth and survival than in-channel habitats, are available for a few weeks at a time. To address this uncertainty, we used a fall-run Chinook Salmon decision model to evaluate under what conditions floodplain restoration would provide greater benefits than in-channel habitat restoration. The simulations results indicated that in-channel habitat restoration was always the best habitat restoration action when there was no existing in-channel despite simulating a wide range of flood frequency, duration, and growth and survival benefits. Floodplain restoration was generally best when there was sufficient in-channel habitat available to successfully rear most of the juveniles produced by the returning adult salmon. We hypothesize that in-channel and floodplain habitats have different roles in salmon population maintenance with in-channel habitats regulating the overall population size and floodplains acting as recurrent resource pulses. Our study provides a quantitative framework to evaluate the benefit of these two habitat types and provides generalizable rulesets that can be used by managers when implementing habitat restoration strategies for species that inhabit both in-channel and floodplain habitats.
Peterson, J.T. and A. Duarte. 2020. Decision analysis to develop and evaluate restoration strategies for Chinook salmon in California’s Central Valley. Restoration Ecology https://doi.org/10.1111/rec.13244 \| Abstract \| Publisher Website	November 2020	A considerable amount of resources have been invested in ecological restoration projects across the globe to restore ecosystem integrity. These restoration strategies are often diverse and have been met with mixed success. In this paper, we describe the Chinook salmon (<i>Oncorhynchus tshawytscha</i>) decision-support models developed by the Central Valley Project Improvement Act Science Integration Team as part of a larger structured decision making effort aimed at maximizing natural adult production of Chinook salmon in California’s Central Valley, USA. We then describe the decision analytic tools the stakeholder group used to solve the models and explore model results, including stochastic dynamic programming, forward simulation, proportional scoring, relative loss, expected value of perfect information, response profile analyses, and indifference curves. Using these tools, the stakeholder group was able to develop and quantitatively evaluate restoration strategies for multiple Chinook salmon runs simultaneously, a first for the restoration program. Furthermore, information uncovered during this process was then used to direct efforts towards targeted research/monitoring to reduce critical uncertainties and make better restoration decisions moving forward. The decision sciences have established a wide range of analytical tools and approaches to simplify complex problems into key components, and we believe the concepts described in this paper are of great interest to many restoration practitioners that undoubtedly face similar difficulties when implementing restoration strategies for complex systems.
Peck-Richardson, A.G., D.E. Lyons, D.D. Roby, D.A. Cushing, and J.A. Lerczak. 2018. Three-dimensional foraging habitat use and niche partitioning in two sympatric seabird species, Phalacrocorax auritus and P. penicillatus. Marine Ecology Progress Series 586: 251-264.	April 2018
Patterson, A. G. L., Kitaysky, A. S., Lyons, D. E., and Roby, D. D. In review. Nutritional stress affects corticosterone deposition in feathers of Caspian tern chicks. Journal of Avian Biology 45:000-000. doi: 10.1111/jav.00397	July 2014
Patino, R., and C. B. Schreck. 1988. Spontaneous and ACTH-induced interrenal steroidogenesis in juvenile coho salmon (Oncorhynchus kisutch): effects of monovalent ions and osmolality in vitro. General and Comparative Endocrinology 69:416-423.	January 1988
Patino, R., and C. B. Schreck. 1986. Sexual dimorphism of plasma sex steroid levels in juvenile coho salmon, Oncorhynchus kisutch, during smoltification. General and Comparative Endocrinology 61:127-133.	January 1986
Patino, R., and C. B. Schreck. 1983. Smoltification and coho salmon: effects of hatchery rearing densities. Proceedings 2nd North Pacific Aquaculture Symposium, Tokyo and Shimizu, Japan. Pages 95-106.	January 1983
Patino, R., J. M. Redding, and C. B. Schreck. 1987. Interrenal secretion of corticosteroids and plasma cortisol and cortisone concentrations after acute stress and during seawater acclimation in juvenile coho salmon (Oncorhynchus kisutch). General and Comparative Endocrinology 68:431-439.	January 1987
Patino, R., C. S. Bradford, and C. B. Schreck. 1986. Adenylate cyclase activators and inhibitors, cyclic nucleotide analogs, and phosphatidylinositol: effects on interrenal function of coho salmon (Oncorhynchus kisutch) in vitro. General and Comparative Endocrinology 62:230-235.	January 1986
Patino, R., C. B. Schreck, and J. M. Redding. 1985. Clearance of plasma cortisol in coho salmon, Oncorhynchus kisutch, at various stages of smoltification. Comparative Biochemistry and Physiology 82A:531-535.	January 1985
Patino, R., C. B. Schreck, J. L. Banks, and W. S. Zaugg. 1986. Effects of rearing conditions on the developmental physiology of smolting of coho salmon. Transactions American Fisheries Society 115:828-837.	January 1986
Parker, S. J., P. S. Rankin, R. W. Hannah, and C. B. Schreck. 2003. Discard mortality of trawl-caught lingcod in relation to tow duration and time on deck. North American Journal of Fisheries Management 23:530-542.	January 2003
Paredes, R., R. A. Orben, R. M. Suryan, D. B. Irons, D. D. Roby, A. M. A. Harding, R. C. Young, K. Benoit-Bird, C. Ladd, H. Renner, S. Heppell, R. A. Phillips, and A. Kitaysky. 2014. Foraging responses of black-legged kittiwakes to prolonged food-shortages around colonies on the Bering Sea shelf. PLoS ONE 9: e92520. doi: 10.1371/journal.pone.0092520.	January 2014
Paredes, R., A.M.A. Harding, D.B. Irons, D.D. Roby, R.M. Suryan, R.A. Orben, H. Renner, R. Young, and A. Kitaysky. 2012. Proximity to multiple foraging habitats enhances seabirds’ resilience to local food shortages. Marine Ecology Progress Series 471:253-269. \| Abstract	April 2013	ABSTRACT: As central-place foragers, seabirds from colonies located close to multiple and/or productive marine habitats might experience increased foraging opportunities and enhanced resilience to food shortages. We tested whether this hypothesis might explain divergent trends in 3 populations of black-legged kittiwakes Rissa tridactyla, a surface-feeding piscivore, in the eastern Bering Sea. We simultaneously studied the foraging behavior, diet, nutritional stress, and breeding performance of chick-rearing kittiwakes from 2 continental shelf colonies (St. Paul and St. George) and an oceanic colony (Bogoslof). Although shelf-based forage fishes were rare or absent in bird diets during the cold study year, not all kittiwakes from the 3 colonies concentrated foraging along the productive shelf break habitats. Compared to the oceanic colony, birds from both shelf-located colonies had lower chick provisioning rates, higher levels of nutritional stress, and lower breeding performance. Although birds from both shelf-based colonies foraged in nearby neritic habitats during daytime, birds from St. George, a stable population located closest to the continental shelf break, also conducted long overnight trips to the ocean basin to feed on lipid-rich myctophids. In contrast, birds from St. Paul, a declining population located farthest from shelf break/oceanic habitats, fed exclusively over the shelf and obtained less high-energy food. Birds from Bogoslof, an increasing population, foraged mainly on myctophids close to the colony in the oceanic basin and Aleutian coast habitats. Our study suggests that proximity to multiple foraging habitats may explain divergent population trends among colonies of kittiwakes in the southeastern Bering Sea.
Palmer, A. G., D. Nordmeyer, and D. D. Roby. 2003. Effects of jet aircraft overflights on parental care of peregrine falcons. Wildlife Society Bulletin 31:499-509.	January 2003
Palmer, A. G., D. L. Nordmeyer, and D. D. Roby. 2001. Factors influencing nest attendance and time-activity budgets of peregrine falcons in interior Alaska. Arctic 54:105-114.	January 2001
Palmer, A. G., D. L. Nordmeyer and D. D. Roby. 2004. Nestling provisioning rates of peregrine falcons in interior Alaska. Journal of Raptor Research 38:9-18.	April 2004
P.L. Kennedy, A.M. Bartuszevige, M.Houle, A.B. Humphrey, K.M. Dugger and J. Williams. 2014. Long-term dynamics in buteo hawk territory occupancy on a privately-managed bunchgrass prairie in Northeast Oregon. The Condor: Ornithological Applications 116:435-445.	July 2014
Orning, EK, KM Dugger, and DG Clark. 2021. Gray wolf (Canis lupus) predation patterns following recent recolonization in a multi-predator, multi-prey system. Canadian Journal of Zoology 99: 902–911. doi.org/10.1139/cjz-2021-0027 .	July 2021
Olson, G. S., R. G. Anthony, E. D. Forsman, S. H. Ackers, P. J. Loschl, J. A. Reid, K. M. Dugger, E. M. Glenn, and W. J. Ripple. 2005. Modeling of Site Occupancy Dynamics for Northern Spotted Owls with Emphasis on the Effects of Barred Owls. Journal of Wildlife Management 69:918-932.	October 2005
Olson, G. S., E. M. Glenn, R. G. Anthony, E. D. Forsman, J. A. Reid, P. J. Loschl, and W. J. Ripple. 2004. Modeling demographic performance of northern spotted owls relative to forest habitat in Oregon. Journal of Wildlife Management 68:1039-1053.	October 2004
Olla, B. L., M. W. Davis, and C. B. Schreck. 1998. Temperature magnified post capture mortality in adult sablefish after simulated trawling. Journal of Fish and Biology 53:743-751.	January 1998
Olla, B. L., M. W. Davis, and C. B. Schreck. 1997. Effects of simulated trawling on sablefish and walleye pollock: the role of light intensity, net velocity and towing duration. Journal of Fish Biology 50:1181-1194.	January 1997
Olla, B. L., M. W. Davis, and C. B. Schreck. 1995. Stress-induced impairment of predator evasion and non-predator mortality in Pacific salmon. Aquaculture Research 26:393-398.	January 1995
Olla, B. L., M. W. Davis, and C. B. Schreck. 1992. Comparison between predator avoidance capabilities with corticosteroid levels induced by stress in juvenile coho salmon. Transactions of the American Fisheries Society 121:544-547.	January 1992
Nervino, S., T. Polley, J.T. Peterson, C.B. Schreck, M.L. Kent, and J.D. Alexander. 2024. Intestinal Lesions and Parasites Associated with Senescence and Prespawn Mortality in Chinook Salmon (Oncorhynchus tshawytscha). Journal of Fish Disease 47(2) https://doi.org/10.1111/jfd.13876 \| Abstract	January 2024	Prespawn mortality (PSM) presents a major problem for population recovery of spring Chinook Salmon (<i>Oncorhynchus tshawytscha</i>) of the Willamette River basin in Oregon. In certain reaches and years, pre-spawning mortality has exceeded 90%. An archived collection of histologic slides of intestines from over 664 spring Chinook salmon collected since 2009 were evaluated. These included tissues collected from live, PSM, as well as post-spawned fish from the river, and artificially spawned broodstock fish held in captivity that were collected earlier in the summer. One consistent change observed during histopathological evaluation was degeneration of the intestinal epithelium and loss of villous structure, with concurrent severe enteritis. We discovered a natural progression of decline in epithelial integrity (EI) spawning and subsequent death. The majority of apparently healthy fish collected from the river in the summer exhibited high EI scores, with a mean of 68% intact epithelium across the study. Sexually mature fish (“broodstock”) that were spawned in captivity in September exhibited variable EI scores, with a mean EI score of about 35%. Fish that spawned naturally in the river and died later in the year (post-spawn river; late September – October), exhibited severe loss of EI, with a mean EI score of about 14%. When accounting for calendar day, there was a prominent accelerated loss of the intestinal epithelium strongly associated with PSM fish – i.e., while collected mostly in August, the intestines had similar EI scores (mean 13.5) to fall-collected post-spawn river. Hence, we suggest this accelerated gut degeneration is linked to premature senescence and is a histologic marker of PSM. Regarding parasites, <i>Ceratonova shasta</i> and <i>Enterocytozoon schreckii</i> were common in all groups of the salmon, although neither were statistically linked to either PSM or a decline in EI.
Neal, T. M.L. Kent, J. Sanders, C.B. Schreck, and J.T. Peterson. 2021. Laboratory infection of juvenile Chinook Salmon (Oncorhynchus tshawytscha) with parasitic copepod (Salmincola californiensis). Journal of Fish Diseases 44:1423-1434 https://doi.org/10.1111/jfd.13450 \| Abstract	May 2021	Pacific salmon (<i>Oncorhynchus </i>spp<i>.</i>) rearing in lakes and reservoirs above dams have been known to become heavily infected with an ectoparasitic copepod (<i>Salmincola californiensis</i>). Little is known about the factors that affect the parasite infection prevalence and intensity. However, previous research suggests that the parasite may negatively affect the fitness and survival of the host fish. The effect of water temperature, confinement, and the density of the free-swimming infectious stage of <i>S. californiensis</i>, the copepodid, on infection prevalence and intensity was evaluated by experimentally exposing juvenile Chinook Salmon (<i>O. tshawytscha</i>). Infection rates observed in wild populations were achieved under certain treatment conditions: warm water (15-16<sup>o</sup>C) and high copepodid densities (150-300/L). During the infection experiment, 4.5% of infected fish died within 54 days with mortality significantly related to copepod infection intensity. The potential for autoinfection were compared to cross infection by cohabitation of infected fish with naïve fish. Previously infected fish had significantly greater infection intensity compared to naïve fish, indication that infected fish can be reinfected and that they may be more susceptible than naïve fish.
Naylor, L. M., M. J. Wisdom, and R. G. Anthony. 2009. Behavioral responses of North American elk to recreational activity. Journal of Wildlife Management 73:328-338.	January 2009
Naficy, C E GW Meigs, MJ Gregory, R Davis, DM Bell, K Dugger, JD Wiens, and MA Krawchuk. 2022. Fire refugia in old-growth forests—Final report to the USGS Northwest Climate Adaptation Center. Oregon State University, Corvallis, OR. 39 p.	April 2022
Murphy, S. M., R. J. Ritchie, D. D. Roby, D. L. Nordmeyer, and A. G. Palmer. 2001. Responses of peregrine falcons to low-level jet aircraft. Invited paper presented at the Effects of Noise on Wildlife Conference, 22-23 August, Goose Bay, Labrador. Institute for Environmental Research and Monitoring. Tern Borealis 2:34-35. Expanded Abstract.	January 2001
Moritsch, MM, KB Byrd, MJ Davis, A Good, JZ Drexler, I Woo, JT Morris, L Windham-Myers, G Nakai, EE Grossman, K Poppe, and J Rybczyk. 2022. Can coastal ecosystems rise to the challenge? Shifts in distribution and carbon accumulation of deltaic ecosystems in response to sea-level rise and management in a South Puget Sound estuary. Estuaries and Coasts xx:xx-xx. https://doi.org/10.1007/s12237-022-01087-5	May 2022
Morandini, V., K.M. Dugger, D.G. Ainley and M. Ferrer. 2020. Rockhopper Penguin-Imperial Cormorant mixed colonies in the Falkland Islands: a stroke of luck for late breeders. Eosphere 11(11):e03272. doi: 10.1002/ecs2.3272	November 2020
Morandini, V., K.M. Dugger, A. Lescroel, A. Schmidt and G. Ballard. 2021. Maintenance of nest quality in Adélie penguins: an additional benefit to life in the center. Polar Biology 44:1553-1562, DOI://doi.org/10.1007/s00300-021-02894-5	June 2021
Morandini, V., A. Lescröel, D. Jongsomjit, S. Winquist, A. Schmidt, G. Ballard, P. Kappes, and K. M. Dugger. 2019. Prevalence of three-chick nests in Adelie penguin Pygoscelis Adeliae at Cape Crozier, Ross Island. Marine Ornithology 47:77-80	April 2019
Morandini, V, KM Dugger, AE Schmidt, A Varsani, A Lescroël, G Ballard, PO'B Lyver, K Barton and DG Ainley. 2024. Sex-specific recruitment rates contribute to male-biased sex ratio in Adélie penguins. Ecology and Evolution 2024;14:e10859. DOI: 10.1002/ece3.10859 \| Download	February 2024
Morandini, V, KM Dugger G Ballard, M Elrod, A Schmidt, V Ruoppolo, A Lescroël, D Jongsomjit, M Massaro, J Pennycook, GL Kooyman, K Schmidlin, S Kraberger, D Ainley, and A Varsani. 2019. Identification of a novel Adélie penguin circovirus at Cape Crozier (Ross Island, Antarctica). Viruses 11, 1088; doi:10.3390/v11121088	December 2019
Momoda, T., A. R. Schwindt, G. W. Feist, L. Gerwick, C. J. Bayne, and C. B. Schreck. 2007. Gene expression in the liver of rainbow trout, Oncorhynchus mykiss, during the stress response. Comparative Biochemistry and Physiology, Part D.	September 2007
Misumi, I., T. Yada, and C.B. Schreck. 2009. The effect of in vitro exposure of tributyltin on the immune competence of Chinook salmon (Oncorhynchus tshawytscha) leukocytes. Archives of Environmental Contamination and Toxicology 56:229-237.	October 2008
Misumi, I., A. T. Vella, J. -A. Leong, and C. B. Schreck. 2005. p, p'-DDE depresses the immune competence of Chinook salmon (Oncorhynchus tshawytscha) leucocytes. Fish and Shellfish Immunology. 19:97-114	January 2005
Milston, R. H., M. S. Fitzpatrick, A. T. Vella, D. Gundersen, G. Feist, S. Clements, T. Crippen, J. A. Leong, and C. B. Schreck. 2003. Short-term exposure of chinook salmon (Oncorhynchus tshawytscha) to o, p'-DDE or DMSO during early life stages causes long-term humoral immunosuppression. Environmental Health Perspectives 111:1601-1607.	October 2003
Milston, R. H., A. T. Vella, T. L. Crippen, M. S. Fitzpatrick, J. A. C. Leong, and C. B. Schreck. 2003. In vitro dectection of functional humoral immunecompetence in juvenile chinook salmon (Oncorhynchus tshawytscha) using flow cytometry. Developmental and Comparative Immunology 15:145-158.	October 2003
Miller, M.P., Haig, S.M., Forsman, E.D., Anthony, R.G., Diller, L., Dugger, K.M., Franklin, A.B., Gremel, S.A., Lesmeister, D.B., Higley, M., Herter, D.R., Sovern, S.G., 2018, Variation in inbreeding rates across the range of Northern Spotted Owls (Strix occidentalis caurina)- insights from over 30 years of monitoring data: The Auk: Ornithological Advances, v. 135, no. 4, p. 821-833, https://doi.org/10.1642/AUK-18-1.1.	July 2018
Miles AK, MA Ricca, RG Anthony, and JA Estes. 2009. Organochlorine contaminants in fishes from coastal waters west of Amukta Pass, Aleutian Islands, Alaska. Environmental Toxicology & Chemistry. 28:1643-1654.	January 2009
Mikkelsen, AJ, DB Lesmeister, KM O'Reilly, and KM Dugger. 2021. Feather corticosterone reveals developmental challenges in a long-term study of juvenile northern spotted owls. Functional Ecology 00:1–13, DOI:10.1111/1365-2435.13944.	November 2021
Mikkelsen, A. J., D. B. Lesmeister, K. M. O’Reilly, and K. M. Dugger. 2023. Juvenile Northern Spotted Owls with higher mass and intermediate levels of corticosterone have greater long-term survival. Ornithological Applications 125:duad015. DOI: 10.1093/ornithapp/duad015	April 2023
Mesa, M. G., and C. B. Schreck. 1989. Electrofishing mark-recapture and depletion methodologies evoke behavioral and physiological changes in cutthroat trout. Transactions American Fisheries Society 118:644-658.	January 1989
Mesa, M. G., T. P. Poe, A. G. Maule, and C. B. Schreck. 1998. Vulnerability to predation and physiological stress responses in juvenile Chinook salmon (Oncorhynchus tshawytscha): experimentally infected with Renibacterium salmoninarum. Canadian Journal of Fish Aquatic Science 55(7):1599-1606.	January 1998
Mesa, M. G., A. G. Maule, and C. B. Schreck. 2000. Interaction of infection with Renibacterium salmoniarum and physical stress in juvenile chinook salmon: Physiological responses, disease progression, and mortality. Transactions of the American Fisheries Society. 129:158-173.	January 2000
Mesa, M. G., A. G. Maule, T. P. Poe, and C. B. Schreck. 1998. Influence of bacterial kidney disease on smoltification in salmonids: is it a case of double jeopardy? Aquaculture 174:25-41.	January 1998
Mercer, D.M., S.M. Haig, and D.D. Roby. 2013. Phylogeography and population genetic structure of double-crested cormorants (Phalacrocorax auritus). Conservation Genetics 14:823-836. doi: 10.1007/s10592-013-0477-8. \| Abstract \| Publisher Website	April 2013	Increases in double-crested cormorant populations since the mid-1970s, especially in central and eastern North America, have raised concerns about effects on fishing resources. Management of different populations of these seabirds have not accounted for genetic differences, which could have implications for scarce subspecies. Four subspecies have previously been described, but detailed genetic analyses have not confirmed this. Oregon State University graduate student Dacey Mercer, along with USGS advisors Susan Haig and Daniel Roby, examined the genetic structure of double-crested cormorants by analyzing DNA in birds’ blood or tissue collected across North America. Analyses confirmed the presence of two subspecies, one from Alaska and one associated with the southwestern portion of the species' range. Small genetic differences found among birds from other regions were related to gradual isolation by distance. Documented declines in Alaskan double-crested cormorants could warrant conservation of this unique subspecies.
Meimann, S., R. G. Anthony, E. M. Glenn, T. Bayless, A. Ellingson, M. C. Hansen, and C. Smith. 2004. Effects of commercial thinning on home-range and habitat-use patterns of a male spotted owl: a case study. Wildlife Society Bulletin 31:1254-1262.	July 2004
Meador, J.M. and J.T. Peterson. 2011. An Evaluation of the Factors Influencing Freshwater Mussel Sampling and Demographics in a Large Lowland River. Journal of the North American Benthological Society 30(2):507-521	April 2011
McNabb, A., C. Schreck, C. Tyler, P. Thomas, V. Kramer, J. Specker, M. Mayes and K. Selcer. 1999. Chapter 3: Basic Physiology. Pages 113-223. In: R. T. DiGiulio and D. E. Tillitt (Editors). Reproductive and Developmental Effects of Contaminants in Oriparous Vertebrates.	November 1999
Maule, A. G., and C. B. Schreck. 1991. Stress and cortisol treatment changed affinity and number of glucocorticoid receptors in leukocytes and gill of coho salmon. General and Comparative Endocrinology 84:83-93.	January 1991
Maule, A. G., and C. B. Schreck. 1990. The glucocorticoid receptors in leukocytes and gill of juvenile coho salmon (Oncorhynchus kisutch). General Comparative Endocrinology 77:448-455.	January 1990
Maule, A. G., and C. B. Schreck. 1990. Changes in numbers of leucocytes in immune organs of juvenile coho salmon (Oncorhynchus kisutch) after acute stress or cortisol treatment. Journal of Aquatic Animal Health 2:298-304.	January 1990
Maule, A. G., R. Schrock, C. Slater, M. S. Fitzpatrick, and C. B. Schreck. 1996. Immune and endocrine responses of adult chinook salmon during freshwater immigration and sexual maturation. Fish and Shellfish Immunology 6:221-233.	January 1996
Maule, A. G., R. A. Tripp, S. L. Kaattari, and C. B. Schreck. 1989. Stress alters immune function and disease resistance in chinook salmon (Oncorhynchus tshawytscha). Journal of Endocrinology 120:135-142.	January 1989
Maule, A. G., C. B. Schreck, and S. L. Kaattari. 1987. Changes in the immune system of coho salmon (Oncorhynchus kisutch) during the parr-smolt transformation and after implantation of cortisol. Canadian Journal Fisheries and Aquatic Sciences 44:161-166.	January 1987
Maule, A. G., C. B. Schreck, and C. Sharpe. 1993. Seasonal changes in cortisol sensitivity and glucocorticoid receptor affinity and number in leukocytes of coho salmon. Fish Physiology and Biochemistry 10:497-506.	January 1993
Maule, A. G., C. B. Schreck, C. S. Bradford, and B. A. Barton. 1988. Physiological effects of collecting and transporting emigrating juvenile chinook salmon past dams on the Columbia River. Transactions American Fisheries Society 117:245-261.	January 1988
Matthews, S. E., D. P. Craig, K. Collis, and D. D. Roby. 2003, Double-crested Cormorant Phalacrocorax auritus. Pages 56-58 in Birds of Oregon: A General Reference. D. B. Marshall, M. G. Hunter, and A. L. Contreras (eds. ). Oregon State University Press, Corvallis, OR.	January 2003
Marks-Fife, C.A., E.D. Forsman, and K.M. Dugger. 2020. Age structure of red tree voles in spotted owl pellets estimated with regression models of molar tooth development. Northwest Science 93:193-208, https://doi.org/10.3955/046.093.0304	January 2020
Markle, D.F., A. Janik, J.T. Peterson, A. Choudhry, D.C. Simon, V.V. Tkach, M.R. Terwilliger, J.L. Sanders, and M.L. Kent. 2020. Odds ratios and hurdle models: a long-term analysis of parasite-host infection patterns in endangered young-of-the-year suckers from Upper Klamath Lake, Oregon. International Journal for Parasitology https://doi.org/10.1016/j.ijpara.2020.02.001	April 2020
Marcella, T.K., S.M. Gende, D.D. Roby, and A. Allignol. 2017. Disturbance of a Rare Seabird by Ship-based Tourism in a Marine Protected Area. PLoS One	May 2017
Maranto, C.J., J.K. Parrish, D.P. Herman, A.E. Punt, J.D. Olden, M.T. Brett, and D.D. Roby. 2011. Use of fatty acid analysis to determine dispersal of Caspian terns in the Columbia River Basin, U.S.A. Conservation Biology 25: 736-746.	January 2011
Mangan, A.O., T. Chestnut, J.C. Vogeler, I.K. Breckheimer, W.M. King, K.E. Bagnall, and K.M. Dugger. 2019. The effects of habitat, weather and Barred Owls (Strix varia) on breeding and occupancy dynamics of Northern Spotted Owls (S. occidentalis caurina). Condor 121:1-20, DOI: 10.1093/condor/duz031	August 2019
MacCluskie, M., A. Romito, J.T. Peterson, and J.P. Lawler. 2016. A formalized approach to making effective natural resource management decisions on Alaska National Parks. Park Science 14(1)	April 2016
Lyons, D.E., and D.D. Roby. 2011. Validating growth and development of a seabird as an indicator of food availability: Captive-reared Caspian Tern chicks fed ad libitum and restricted diets. Journal of Field Ornithology 82: 88-100.	January 2011
Lyons, D.E., A.G.L. Patterson, J. Tennyson, T.J. Lawes, and D.D. Roby. 2018. The Salton Sea: Critical migratory stopover habitat for Caspian Terns (Hydroprogne caspia) in the North American Pacific Flyway. Waterbirds 41: 154-165.	January 2018
Lyons, D. E., D. D. Roby, and K. Collis. 2007. Foraging patterns of Caspian terns and double-crested cormorants in the Columbia River estuary. Northwest Science 81:91-103.	May 2007
Lyons, D. E., D. D. Roby, and K Collis. 2005. Foraging Ecology of Caspian Terns in the Columbia River Estuary, USA. Waterbirds 28: 280-291.	October 2005
Lupes, S. C., M. W. Davis, B. Olla, and C. B. Schreck. 2006. Capture-related stressors impair immune system function in sablefish. Transactions of the American Fisheries Society. 135:129-138.	January 2006
Lundblad, CG, CR Anthony, T Dungannon, KA Haab, EM Schuyler, CE Sink, KM Dugger, and CA Hagen. 2024. Evaluating Satellite-Transmitter Backpack-Harnesses Effects on Greater Sage-Grouse Survival and Device Retention in the Great Basin. The Wildlife Society Bulletin 2024;48:e1523m https://doi.org/10.1002/wsb.1523. \| Download	February 2024
Loegering, J. P., and R. G. Anthony. 2006. nest-site selection and productivity of American dippers in the oregon coast Range. Wilson Journal of Ornithology 118:281-294.	October 2006
Loegering, J. P., and R. G. Anthony. 2006. Nest-site selection and productivity of American dippers in the Oregon Coast Range. The Wilson Journal of Ornithology 118:281-294.	October 2006
Loegering, J. P., and R. G. Anthony. 1999. Distributioin, abundance, and habitat association of riparian-obligate and -associated birds in the Oregon Coast Range. Northwest Science 73:168-185.	November 1999
Litzow, M. S., J. F. Piatt, A. K. Prichard and D. D. Roby. 2002. Response of pigeon guillemots to variable abundance of high-lipid and low-lipid prey. Oecologia 132:286-295.	October 2002
Liebert, A. M., and C. B. Schreck. 2006. Effects of acute stress on osmoregulation, feed intake, IGF-1, and cortisol in yearling steelhead trout (Oncorhynchus mykiss) during seawater adaptation. General and Comparative Endocrinology. 148:195-202.	January 2006
Li, H. W., and P. B. Moyle. Chapter 13. Management of Exotics (2nd Edition). 1999. Pages 345-374. In: C. Kohler and W. Hubert (Editors). Inland Fisheries Management in North America. American Fisheries Society. Bethesda MD.	November 1999
Li, H. W., and J. L. Li. Role of fish assemblages in stream communities. 2006. Pages 489-533, in R. Hauer and G. A. Lamberti (eds. ). Methods in Stream Ecology 2nd, Edition. Academic Press. Burlington MA.	July 2006
Li, H. W., R. L. Beschta, J. B. Kauffman, J. L. Li, B. A. McIntosh and P. A. McDowell. 2000. Hydrologic, geomorphic and ecological connectivity in Columbia River Watersheds: Implications for endangered salmonids. Completion Report to the EPA Star Program, R82-4774-010, 112 Pages.	October 2000
Li, H. W., P. A. Rossignol, and G. Castillo. 1999. Risk analysis of species introduction: Insights from qualitiative modeling. Pages 431-447. In: Claudi R., and Leach J. (Editors). Non-indigenous Fresh Water Organisms in North America; Vectors of Introduction, Biology and Impact. Lewis Press, Boca Raton FL.	November 1999
Li, H. W., C. B. Schreck, and K. J. Rodnick. 1984. Pages 57-111 In: J. W. Terrell (Editor). Proceedings Workshop on Fish Habitat Suitability Index Models, Biological Report (USFWS) 85. Page 393.	January 1984
Li, H. W., C. B. Schreck, C. E. Bond, and E. Rexstad. 1987. Factors influencing changes in fish assemblages of Pacific Northwest streams. Pages 193-202. In: W. J. Matthews and D. C. Heins (Editors). Community and Evolutionary Ecology of North American Stream Fishes. University of Oklahoma Press, Norman.	January 1987
Li, H. W. 2000. Recovering River Systems is a Synthesis of Science, Politics and Policy. BioScience 50:619-620.	January 2000
Li, H. W. 1999. Book Review of Journal of the North American Benthological Society: Non-indigenous fishes introduced into inland waters of the United States. Pam L. Fuller, Leo G. Nico, and James D. Williams. ISSN: 0097-0638. ISBN: 1-888569-14-X. American Fisheries Society Special Publication 27. Bethesda MD 20814-2199. 1999. 613 pp.	November 1999
Lescroël, A., G. Ballard, M. Massaro, K.M. Dugger, S. Jennings, A. Pollard, E. Porzig, A. Schmidt, A. Varsani, D. Grémillet, and D. Ainley. 2019. Evidence of age-related improvement in the foraging efficiency of Adélie penguins. Scientific Reports 9:3375, DOI:/10.1038/s41598-019-39814-x	March 2019
Lescroël, A., A. Schmidt, D.G. Ainley,K.M. Dugger, M. Elrod, D. Jongsomjit, V. Morandini, S. Winquist, and G. Ballard. 2023. High-resolution recording of foraging behaviour over multiple annual cycles shows decline in old Adélie penguins’ performance. Proceedings of the Royal Society B 290: 20222480, DOI: 10.1098/rspb.2022.2480.	March 2023
Lescroël, A, P O’B Lyver, D Jongsomjit, S Veloz, KM Dugger, P Kappes, BJ Karl, AL Whitehead, R Pech, TL Cole, G Ballard. 2020. Individual quality and sex are the main drivers of inter-individual differences in the foraging behavior of breeding Adélie penguins. Marine Ecology Progress Series 636: 189–205, DOI: /10.3354/meps13208	February 2020
Lawonn, M.J., D.D. Roby, J.F. Piatt, W.H. Pyle, and R.M. Corcoran. In review. Nest site selection of Kittlitz's murrelets on Kodiak Island, Alaska. Marine Ornithology 46: 33-42.	January 2018
Larson, M.S., A. Choudhury, E.N. Gardner, P. Konstantinidis, C.A. Murphy, M.L. Kent, J.T. Peterson, and C.E. Couch. 2024. Diet and Philonema oncorhynchi infections in reservoir-rearing juvenile Chinook salmon (Oncorhynchus tshawytscha). Transactions of the American Fisheries Society153(3): 312-325. \| Abstract \| Publisher Website	May 2024	Dams and reservoirs can alter juvenile growth and survival of migratory salmonids through several physical and biological mechanisms. Juvenile Chinook salmon (<i>Oncorhynchus tshawytscha</i>)<b> </b>produced above large hydropower dams may have associated passage mortality, but reservoirs created by these dams can support rapid growth. Characterizing the biotic drivers of growth and mortality in reservoirs may aid in understanding the cumulative effects of river impoundments on migratory salmonid populations. The purpose of this study is to understand how reservoirs facilitate rapid growth in juvenile Chinook salmon by characterizing diet composition throughout the summer and fall. We found that juvenile Chinook salmon frequently consume young-of-year centrarchids, which likely contributes to rapid growth. Piscivory was highest from July through September and decreased with surface temperature beginning in late September and continuing through December. Correspondingly, zooplankton and arthropod consumption increased in November and December. We also recorded prevalence of the parasitic nematode <i>Philonema oncorhynchi</i> in the coelom. Prevalence of macroscopic <i>P. oncorhynchi</i> infections was high (35%) but decreased over time and was lower in the larger fish, indicating parasite-associated mortality.
Lance, B. K., and D. D. Roby. 2000. Diet and postnatal growth in red-legged and black-legged kittiwakes: an interspecies cross-fostering experiment. Auk 117:1020-1032.	October 2000
LaRue, M.A., D.G. Ainley, M.Swanson, K.M. Dugger, P.O'B. Lyver, K.Barton, and G. Ballard. 2013. Climate change winners: receding ice fields facilitate colony expansion and altered dynamics in an Adélie penguin metapopulation. PLoS ONE 8(4):e60568. Doi:10.1371/journal.pone.0060568.	April 2013
Kurnianto, S., J. Selker, J. B. Kauffman, D. Murdiyarso, J. T. Peterson. 2018. The influence of land cover changes on the variability of saturated hydraulic in tropical peatlands. Mitigation and Adaptation Strategies for Global Change. doi:10.1007/s11027-018-9802-3	April 2018
Kroll, A.J., T.S. Garcia, J. Jones, K.M. Dugger, B. Murden, J. Johnson, S. Peterman, B. Brintz, and M. Rochelle. 2015. Evaluating Multi-level Models to Assess Occupancy State Responses of Plethodontid Salamanders. PLoS ONE 10(11): e0142903. doi:10.1371/journal.pone.0142903.	November 2015
Krementz, DG, KL Willard, JM Carroll, and KM Dugger. 2016. King Rail (Rallus elegans) Nesting and Brood-Rearing Ecology in a Managed Wetland in Oklahoma, USA. Waterbirds 39:241-249.	October 2016
Knudsen, F. R., C. B. Schreck, S. M. Knapp and O. Sand. 1997. Infrasound produces flight and avoidance responses in juvenile Pacific salmonids. Use of infrasound to guide fish. Journal of Fish Biology 51:824-829.	January 1997
Knoebl, I., M. S. Fitzptrick, and C. B. Schreck. 1996. Characterization of a glucocorticoid receptor in the brains of chinook salmon, Oncorhynchus tshawytscha. General and Comparative Endocrinology 101:195-204.	January 1996
Kirsch, J.E., J.T. Peterson, A. Duarte, D. Barnard, A. Goodman, S. Hugentobler, J. Julienne, M. Meek, R.W. Perry, C. Phillis, L. Smith, and J. Stewart. 2024. Fish misidentification and incomplete detection affects inferences from data informing water operation decisions. North American Journal of Fish Management https://doi.org/10.1002/nafm.10974 \| Abstract	February 2024	The alteration of river flow regimes and water diversions caused by water management infrastructure is a major stressor to freshwater fishes. The gate-controlled Delta Cross Channel (DCC) at Walnut Grove, California was constructed to divert fresh water from the Sacramento River to supply freshwater to two export facilities that pump water into canals for agricultural and domestic uses. The alteration of river flows due to the operation of these gates can negatively influence the migration pathways and survival of endangered juvenile Sacramento River winter-run Chinook salmon <i>Oncorhynchus tshawytscha</i>. Count data of these salmon at fixed monitoring sites in the Sacramento River has informed DCC operations during October through December since 1996. Although clear guidelines were developed for DCC operations using the salmon count data, there is uncertainty about how environmental conditions influence salmon occupancy and if those relationships could be affected by fish sampling and identification error. We assessed the effect of environmental conditions along with incomplete detection and misidentification error on juvenile winter-run Chinook salmon occupancy by analyzing data collected at nine monitoring sites from 1996 to 2019 using hierarchical multi-state occupancy models. To incorporate misidentification into the modeling framework, we used accuracy data derived from fish identification examinations along with genetic sampling. We found that occupancy varied considerably and was related to flow characteristics, water clarity, weather, time of year, and whether occupancy was detected during the previous sampling day. However, we found that these relationships and their significance changed considerably when we accounted for incomplete detection and the nominal probability (0.056) of misidentifying individual salmon. Detection was relatively low and influenced by factors including a site effect, flow, water clarity and volume sampled. Our study demonstrates the need to account for identification and detection error while using monitoring data to assess factors influencing fish occupancy and inform future management decisions.
Kirsch, J.E., J.L.Day, J.T.Peterson, and D.K. Fullerton. 2018. Fish Misidentification and Potential Implications to Monitoring Within the San Francisco Estuary, California. Journal of Fish and Wildlife Management 9: 467-485.	December 2018
Kirsch, J.E and J.T. Peterson. 2014. A multi-scaled approach to evaluating the fish assemblage structure within southern Appalachian streams USA. Transactions of the American Fisheries Society. 143:1358-1371. \| Abstract \| Download	October 2014	There is considerable uncertainty regarding the relative roles of stream habitat, landscape characteristics, and interspecific interactions in structuring stream fish assemblages. We evaluated the relative importance of environmental characteristics and species interactions on fish occupancy, at local and landscape scales, within the upper Little Tennessee River Basin, Georgia and North Carolina. Using a quadrat sample design, fishes were collected at 525 channel units within 48 study reaches during two consecutive years. We evaluated the relative support for the influence of local- and landscape-scale factors on fish occupancy using multi-scaled, hierarchical, multi-species occupancy models. Modeling results suggested that the fish assemblage within the Little Tennessee River Basin was hierarchically structured and primarily influenced by stream size and spatial context, urban land coverage, and channel unit types. Landscape scale factors (i.e., urban land coverage, stream size and spatial context) largely constrained the fish assemblage structure at a stream reach and local scale factors (i.e., channel unit types) influenced fish distribution within stream reaches. Our study demonstrates the utility of a multi-scaled approach and the need to account for the inter-scale interactions of factors influencing assemblage structure prior to monitoring fish assemblages, developing biological management plans, or allocating management resources throughout a stream system.
Kelsey, D. A., C. B. Schreck, J. L. Congelton and L. E. Davis. 2002. Effects of juvenile steelhead (Oncorhynchus mykiss) on juvenile chinook salmon (Oncorhynchus tshawtscha) behavior and physiology. Transactions of the American Fisheries Society 131:676-689.	April 2002
Kelly, E. G., E. D. Forsman, and R. G. Anthony. 2003. Are barred owls displacing spotted owls? Condor 105:45-53.	January 2003
Kauffman, M., Lowrey, B., Beaupre, C., Bergen, S., Bergh, S., Blecha, K., Bundick, S., Burkett, H., Cain, J.W., III,Carl, P., Casady, D., Class, C., Courtemanch, A., Cowardin, M., Diamond, J., Dugger, K., Duvuvuei, O., Ennis, J.R.,Flenner, M., Fort, J., Fralick, G., Freeman, I., Gagnon, J., Garcelon, D., Garrison, K., Gelzer, E., Greenspan, E.,Hinojoza-Rood, V., Hnilicka, P., Holland, A., Hudgens, B., Kroger, B., Lawson, A., McKee, C., McKee, J.L., Merkle, J.R.,Mong, T.W., Nelson, H., Oates, B., Poulin, M.-P., Reddell, C., Ritson, R., Sawyer, H., Schroeder, C., Shapiro, J.,Sprague, S., Steiner, E., Steingisser, A., Stephens, S., Stringham, B., Swazo-Hinds, P.R., Tatman, N., Wallace, C.F.,Whittaker, D., Wise, B., Wittmer, H.U., and Wood, E., 2024, Ungulate migrations of the Western United States,volume 4: U.S. Geological Survey Scientific Investigations Report 2024–5006, 86 p., 1 pl., https://doi.org/10.3133/sir20245006.	April 2024
Kappes PJ, KM Dugger, A Lescroël, DG Ainley, G Ballard, KJ Barton, PO’B Lyver, PR Wilson. 2021. Age-related reproductive performance of the Adélie Penguin, a long-lived seabird exhibiting similar outcomes regardless of individual life-history strategy. Journal of Animal Ecology 2021;90:931-942, https://doi.org/10.1111/1365-2656.13422">https://doi.org/10.1111/1365-2656.13422.	January 2021
Jongsomjit, D, A Lescroël, A Schmidt, S Lisovski, D Ainley, E Hines, M Elrod, KM Dugger, G Ballard. 2024. Going with the floe: Sea-ice movement affects distance and destination during Adélie penguin winter movements. Ecology 2024;105:e4196. DOI: 10.1002/ecy.4196 \| Download	January 2024
Jones, MS. (2024). Integrating the human dimensions into fish and wildlife management depends on increasing managers’ social science fluency. Human Dimensions of Wildlife. https://doi.org/10.1080/10871209.2024.2301965. \| Abstract \| Download \| Publisher Website	January 2024	It is a common experience in human dimensions to hear people say, “wildlife management is people management.” Good people management requires the full integration of the human dimensions into natural resources work. This means going beyond <i>conducting</i> human dimensions research to <i>understanding and applying</i> lessons learned from social science. A key step here is building managers’ fluency in social science concepts so they can more easily relate existing literature to their own practical questions. I use three example issues from human-wildlife conflict – calibrating trust, managing anger, and fostering autonomy – to illustrate how increased fluency in psychology could inform conflict management in the context of larger sociopolitical discourses. I conclude with ideas for how organizations and scientists could help managers build this integrative capacity in order to better achieve a shared objective of a wildlife management profession that works well with people for the good of humans and wildlife.
Jones MS & Niemiec RM. (2023). Motivating relational organizing behavior for biodiversity conservation. Conservation Science & Practice. https://doi.org/10.1111/csp2.12880 \| Abstract	January 2023	As biodiversity loss and climate change accelerate, more people worldwide are engaging in conservation behaviors to ‘do their part.’ Yet individual behavior change alone is insufficient for the large-scale, rapid change needed to address these crises. Relational organizing, which involves individuals reaching out to others in their social network, can enhance the speed and scale of conservation behavior change and address the complex, collective action nature of many conservation problems. However, many people practicing conservation behaviors in their own lives don’t engage in relational organizing about conservation issues. Here, we suggest this may be the result of specific social-psychological factors inhibiting people from reaching out to others. We summarize the evidence and offer a research and practice agenda to prioritize 1) understanding the social-psychological barriers that prevent relational organizing, and 2) addressing these barriers through targeted outreach interventions to help scale and accelerate community action for conservation. <b><br></b><b><br> </b>
Johnston, A.N. and R.G. Anthony. 2008. Small-mammal Microhabitat Associations and Response to Grazing in Oregon. Journal of Wildlife Management 72:1736-1746.	October 2008
Jodice, P. G. R., R. B. Lanctot, V. A. Gill, D. D. Roby, and S. A. Hatch. 2000. Sexing adult black-legged kittiwakes by DNA, behavior, and morphology. Waterbirds 23:405-415.	October 2000
Jodice, P. G. R., D. D. Roby, S. A. Hatch, V. A. Gill, R. B. Lanctot, and G. H. Visser. 2002. Does food availability affect energy expenditure rates of nesting seabirds? A supplemental-feeding experiment with black-legged kittiwakes (Rissa tridactyla). Canadian Journal of Zoology 80:214-222.	October 2001
Jodice, P. G. R., D. D. Roby, R. Suryan, D. B. Irons, K. R. Turco, E. D. Brown, J. F. Thedinga, and G. H. Visser. 2006. Increased energy expenditure by a seabird in response to higher food abundance. Marine Ecology Progress Series. 306:283-293.	January 2006
Jodice, P. G. R., D. D. Roby, R. M. Suryan, D. B. Irons, A. M. Kaufman, K. R. Turco, and G. H. Visser. 2003. Variation in Energy Expenditure among Black-Legged Kittiwakes: Effects of Activity-Specific Metabolic Rates and Activity Budgets. Physiological and Biochemical Zoology 76(3):375-388.	October 2003
Jodice, P. G. R., D. D. Roby, M. Antolos, D. E. Lyons, D. J. Rizzolo, S. K. Wright, C. D. Anderson, S. K. Anderson, S. K. Nelson, A. E. Gall, and L. Wennerberg. 2003. Review of Biology of Marine Birds by E. A. Schreiber and J. Burger (eds. ). CRC Press, Boca Raton FL. Auk 120:240-245.	January 2003
Jodice, P. G. R., D. D. Roby, K. R. Turco, R. M. Suryan, D. B. Irons, J. F. Piatt, M. T. Shultz, D. G. Roseneau, A. B. Kettle. 2008. Growth rates of Black- legged Kittiwake chicks in relation to delivery rate, size and energy density of meals. Marine Ornithology 36:107-114 \| Publisher Website	October 2008
Jodice, P. G. R., D. D. Roby, K. R. Turco, R. M. Suryan, D. B. Irons, J. F. Piatt, M. T. Shultz, D. G. Roseneau, A. B. Kettle, and J. A. Anthony. 2006. Assessing the nutritional stress hypothesis: the relative influence of diet quantity and quality on seabird productivity. Marine Ecology Progress Series 325:267-279.	November 2006
Jepsen, N. C. B. Schreck, S. Clements, and E. B. Thorstad. 2005. A brief discussion on the 2% tag/bodymass rule of thumb. Pp. 255-259 In: M. T. Spedicato, G. Lembo, and G. Marmulla (Editors). Aquatic telemetry: advances and applications. FAO/COISPA, Rome.	January 2005
Jepsen, M., L. E. Davis, C. B. Schreck and B. Siddens. 2001. The physiological response of chinook salmon smolts to two methods of radio-tagging. Transactions of the American Fisheries Society 130:495-500.	October 2001
Jensen, A.J., S.J. Dundas, and J.T. Peterson. 2022. Phenomenological and mechanistic modeling of recreational angling behavior using creel data. Fisheries Research 249: 106235. \| Abstract	May 2022	Improved understanding of angling behavior in recreational fisheries can help managers account for partial controllability in systems in which angling effort is not directly regulated. Relevant aspects of angling behavior include fishing participation, site choice, and catch-and-release actions and can be considered at scales of both aggregate fishing effort and individual-decision-making. Using creel survey data collected across eight fishery seasons, we predicted aggregate angling effort (e.g., daily number of boating trips engaged in fishing) and characterized influences of individual trip-based site choice for recreational fisheries acting on fall-run Chinook salmon and coho salmon near the mouth of the Columbia River, United States. We applied an overdispersed Poisson likelihood-based generalized linear model with an autoregressive structure to aggregate boating effort and a multinomial logit model to trip-based site choice decisions among separate ocean and estuary fishing zones. Predictive models explained 71% and 79% of out-of-sample and in-sample variability in aggregate effort, respectively, and included the covariates weekend status, Chinook salmon catch rate, tidal range, and pre-season expectations of fish abundance. Site choice model selection revealed the influence of weather, expected fishery season lengths, and the individual-specific characteristics of boat length and guide status on decision-making. Model results provide predictive models for short-term fishery planning, revealed underlying influences of individual decision-making, and highlight the value of standardized creel data for evaluating angling behavior.
Jensen, A.J., C.B. Schreck, and J.T. Peterson. 2021 Rapid Phenotypic Stock Identification of Chinook Salmon in Recreational Fishery Management. Marine and Coastal Fisheries 13: 99-112. https://doi.org/10.1002/mcf2.10145 \| Abstract \| Publisher Website	April 2021	Rapid phenotypic stock identification in mixed-stock fisheries can provide a useful alternative to more time-intensive methods (e.g., genetics) in assessing harvest and informing management decisions. We leveraged anecdotal knowledge and understanding of life history differences to develop rapid stock identification tools for fall-run Chinook salmon (<i>Oncorhynchus tshawytscha</i>) encountered in the Buoy 10 recreational fishery at the mouth of the Columbia River. Specifically, we sought to differentiate between the fishery’s two dominant genetic lineages: lower river tules and upriver brights. We sampled recreationally landed Chinook salmon in 2017, 2018, and 2019, assigned sampled individuals to genetic group using a probabilistic approach and single nucleotide polymorphisms, and collected measurements on phenotypic traits. Using traits including pigmentation patterns (e.g., spotting), fin morphology, characters indicative of sexual maturity, and muscle lipid content, random forest classification models provided consistently high classification success across and within genetic groups (i.e., up to 90% in certain cases). Classification success remained consistent over time within fishery seasons and between years, but showed meaningful bias between sexes. Based on observed classification success, we developed and evaluated a categorical visual identification guide capable of facilitating more rapid trait observations and on-site stock identification. The resulting classification key, built using classification trees and visual guide observations from 2019, achieved slightly lower classification success across and within genetic groups and highly variably success among samplers. Trade-offs among stock identification methods offer unique management applications for each alternative, including their complementary use in harvest assessment alongside standard data collection methods. Rapid phenotypic stock identification methods offer the potential for increased precision and timeliness in harvest assessments.
Jensen, A.J., B. Cox, and J.T. Peterson. 2022. Evaluating tag-reliant harvest estimators in Chinook salmon mixed-stock fisheries using simulations. Canadian Journal of Fisheries and Aquatic Sciences 99(999):1-15. https://doi.org/10.1139/cjfas-2021-0197 \| Abstract \| Publisher Website	January 2022	Management of mixed-stock recreational fisheries requires balancing fishery access and conservation of vulnerable stocks. Although accurate, timely estimates of stock-specific harvest are crucial in achieving competing objectives, limited sample sizes of stock assignments (e.g., physical tag recoveries) can limit the utility of estimates. Using empirically-based simulations of a high-effort Chinook salmon fishery in the Columbia River, we assessed the performance of competing model frameworks, sources of prior information, extents of data aggregation, and monitoring actions using limited tag-based stock assignments. We sought to improve accuracy for point estimates of cumulative harvest and harvest trajectories over time. Using simulated datasets, Bayesian likelihood-based models performed similarly to existing models and provided novel estimates of uncertainty. Incorporation of prior information most benefited stocks with fewer tag returns and produced the most accurate harvest trajectories with limited data aggregation. Among management actions yielding similar sample sizes, enhancing low tagging rates resulted in the greatest estimate precision. Analysis results highlight new assessment practices for the fishery, and our approach to model assessment may be applied to similar mixed-stock fisheries.
Jensen, A. J., C.B. Schreck, J.E. Hess, S. Bohn, K.G. O'Malley, and J.T. Peterson. 2021. Genetic Advances in Recreational Fisheries Management. North American Journal of Fisheries Management 41:130-141. DOI:10.1002/nafm.10542. \| Publisher Website	February 2021
Jennings, S., KM Dugger, G Ballard, and DG Ainley. 2021. Effects of diet and provisioning behavior on chick growth on Adélie Penguins (Pygoscelis adeliae). Waterbirds 44:55-67. \| Abstract	March 2021	When provisioning chicks, parents make trade-offs toward allocating time, energy, and other resources to maximize reproductive success. As parents adjust investment to maximize their own fitness, impacts on offspring growth can occur. We investigated the relationships between provisioning (an index of parental investment) and chick growth of Adélie penguins <i>Pygoscelis adeliae</i> at a large, high latitude colony, where competition for food affects foraging effort and limits chick growth. We measured average amount of food delivered per day, quality of prey delivered, and foraging trip duration, and compared them to mass and skeletal growth rate of chicks during two breeding seasons of contrasting conditions. We used mixed-effects models to test the prediction that increased parental investment would lead to increased growth rates, while accounting for confounding effects of parent age, chick sex, year, brood size, hatching order, and the lack of independence between siblings. Little evidence indicated an effect of parent age. All measures of provisioning were important in predicting growth of at least one morphological character but, especially during the year of normal reproductive success, no measure of provisioning strongly or consistently predicted growth across a majority of morphological characters. However, during the difficult year a positive relationship existed between growth rates and parental investment, especially for male chicks <i>—</i> only the male chicks fed a high-fish diet grew as fast as the overall average male growth rate in the normal year. Growth of male chicks may be more sensitive to variation in parental investment, particularly under challenging conditions, and the results at least partially agree with theory about offspring-sex-based variation in parental investment. The observed variation in growth rates between males and females, and between years of contrasting apparent resource availability, was large enough to lead to size differences that may subsequently affect post-fledging survival and ultimately population processes.
Jennings, S., A. Varsani, K.M. Dugger, G. Ballard, and D.G. Ainley. 2016. Sex-based differences in Adelie penguin (Pygoscelis adeliae) chick growth rates. PloS ONE 11(3): e0149090. doi:10.1371/ journal.pone.0149090.	March 2016
Jennings, S, KM Dugger, G Ballard, and DG Ainley. 2023. Faster growth and larger size at crèche onset are associated with higher offspring survival in Adélie Penguins. Ornithology 140: 1-11. DOI: 10.1093/ornithology/ukad006. \| Download	March 2023
Jenkins, JMA, DB. Lesmeister, ED Forsman, KM Dugger, SH Ackers, LS Andrews, CE McCafferty, MS Pruett, JA Reid, SG Sovern, RB Horn, SA Gremel, JD Wiens, and Z Yang. 2019. Social status, forest disturbance, and barred owls shape long-term trends in breeding dispersal distance of Northern Spotted Owls. The Condor 121:1–17, DOI: 10.1093/condor/duz055	December 2019
Jenkins JMA, DB Lesmeister, ED Forsman, KM Dugger, SH Ackers, LS Andrews, SA Gremel, B Hollen, CE McCafferty, MS Pruett, JA Reid, SG Sovern, and JD Wiens. 2021. Conspecific and congeneric interactions shape increasing rates of breeding dispersal of northern spotted owls. Ecological Applications e02398, http://doi.org/10.1002/eap.2398.	July 2021
Isaacs, F. B., and R. G. Anthony. 2003. Bald Eagle. Pages in D. B. Marshall, M. G. Hunter, and A. L. Contreras (eds. ). Birds of Oregon: A General Reference. Oregon State University Press, Corvallis, OR.	January 2003
Irwin, ER, MC Freeman, J Peterson, MC Lloyd, KDM Kennedy, K Ouellette and E Kosnicki. 2019. Adaptive Management of Flows from R.L. Harris Dam, (Tallapoosa River, Alabama): Stakeholder Process and Use of Biological Monitoring Data for Decision Making. Open File Report 2019-1026, 93pages, https://doi.org/x.	March 2019
Immell, D., and R. G. Anthony. 2008. Estimation of Black Bear Abundance using a Discrete DNA Sampling Device. Journal of Wildlife Management 72:324-330.	January 2008
Hostetter, N.J., B. Gardner, A.F. Evans, B.M. Cramer, Q. Payton, K. Collis, and D.D. Roby. Wanted dead or alive: A state-space mark-recapture-recovery model incorporating multiple recovery types and state uncertainty.	July 2018
Hostetter, N.J., A.F. Evans, D.D. Roby, and K. Collis. 2012. Susceptibility of juvenile steelhead to avian predation: the influence of individual fish characteristics and river conditions. Transactions of the American Fisheries Society 141:1586-1599.	September 2012
Hostetter, N.J., A.F. Evans, D.D. Roby, K. Collis, M. Hawbecker, B.P. Sandford, D.E. Thompson, and F.J. Loge. 2011. Relationship of external fish condition to pathogen prevalence and out-migration survival in juvenile steelhead. Transactions of the American Fisheries Society 140: 1158-1171.	October 2011
Hostetter, N.J., A.F. Evans, B.M. Cramer, K. Collis, D.E. Lyons, D.D. Roby. 2015. Quantifying avian predation on fish populations: Integrating predator-specific deposition probabilities in tag-recovery studies. Transactions of the American Fisheries Society 144:410-422. \| Abstract	June 2015	Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian<br>predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation due to an unknown and unaccounted-for fraction of tags that are consumed<br>but not deposited on-colony (i.e., deposition probability). We applied an integrated tag recovery modeling approach in a Bayesian context to estimate predation probabilities that accounted for predator-specific tag detection and deposition probabilities in a multiple-predator system. Studies of PIT tag deposition were conducted across three bird species nesting at seven different colonies in the Columbia River basin, USA. Tag deposition probabilities<br>differed significantly among predator species (Caspian terns Hydroprogne caspia: deposition probability D 0.71, 95% credible interval [CRI] D 0.51–0.89; double-crested cormorants Phalacrocorax auritus: 0.51, 95% CRI D 0.34–<br>0.70; California gulls Larus californicus: 0.15, 95% CRI D 0.11–0.21) but showed little variation across trials within a species or across years. Data from a 6-year study (2008–2013) of PIT-tagged juvenile Snake River steelhead<br>Oncorhynchus mykiss (listed as threatened under the Endangered Species Act) indicated that colony-specific predation probabilities ranged from less than 0.01 to 0.17 and varied by predator species, colony location, and year.<br>Integrating the predator-specific deposition probabilities increased the predation probabilities by a factor of<br>approximately 1.4 for Caspian terns, 2.0 for double-crested cormorants, and 6.7 for California gulls compared with<br>traditional minimum predation rate methods, which do not account for deposition probabilities. Results supported previous findings on the high predation impacts from strictly piscivorous waterbirds nesting in the Columbia River estuary (i.e., terns and cormorants), but our findings also revealed greater impacts of a generalist predator species (i.e., California gulls) than were previously documented. Approaches used in this study allow for direct comparisons<br>among multiple fish mortality factors and considerably improve the reliability of tag recovery models for estimating predation probabilities in multiple-predator systems.
Homer, M.D., J. T. Peterson, and C. A. Jennings. 2015. Evaluation of Three Aging Techniques and Back-calculated Growth for Introduced Blue Catfish from Lake Oconee, Georgia. Southeastern Naturalist 14(4):740–756.	December 2015
Hjort, R. C., and C. B. Schreck. 1982. Phenotypic differences among stocks of hatchery and wild coho salmon (Oncorhynchus kisutch) in Oregon, Washington, and California. Fisheries Bulletin 80:105-119.	January 1982
Hauptfeld R, Jones MS and Skylander K. (2022). Building capacity for individual and systems-level collaborative conservation impacts: Intentional design for transformative practice. Society & Natural Resources. https://doi.org/10.1080/08941920.2022.2111738 \| Abstract \| Publisher Website	August 2022	Conservation for and with local communities and stakeholders is essential. Despite the importance of community-oriented approaches and calls for capacity building in conservation, the impacts and inputs of training in relational fields like collaborative conservation remain unclear. We used mixed methods to conduct one of the first evaluations of a collaborative conservation capacity building program, and present an empirically-based causal model of the programmatic inputs supporting long-term changes. We found moderate to transformational impacts on participants’ practice and professional trajectories, and on multiple dimensions of capacity, including comfort, conviction, and identity. Flexible funding, immersion into a safe community of practice, and the obligation and opportunity to experiment with collaborative approaches fostered these changes. We also found evidence of a developing landscape of practice, and perceived benefits to communities where fellows worked. We suggest programs incorporate intentional design, including networked communities of practice and heuristics, to enhance individual and systems impact.
Harrahy, L. N. M., C. B. Schreck, and A. G. Maule. 2001. Antibody producing cells correlated to body weight in juvenile chinook salmon (ONCORHYNCHUS TSHAWYTSCHA) acclimated to optimal and elevated temperatures. Fish and Shellfish Immunology 11:653-659.	October 2001
Harding, A., R. Paredes, R. Suryan, D. Roby, D. Irons, R. Orben, H. Renner, R. Young, C. Barger, and I. Dorresteijn. 2013. Does location really matter? An inter-colony comparison of seabirds breeding at varying distances from productive oceanographic features in the Bering Sea. Deep-Sea Research II 94:178-191. \| Abstract	January 2013	a b s t r a c t Central place foragers, such as breeding seabirds, need to commute between their nests and foraging grounds, thus close proximity of the breeding colony to productive oceanographic features might be beneficial for seabird reproduction. We tested this hypothesis by investigating the at-sea foraging and breeding behavior of thick-billed murres (Uria lomvia) nesting at three colonies (Bogoslof, St.Paul, and St. George Islands) in the Bering Sea located at different distances from the productive continental shelf-break. We found that distances to feeding areas differed only during night trips among colonies. St. Paul murres foraged entirely on the shelf, whereas St. George murres commuted to the continental shelf-break at night and foraged on the shelf during the day. Bogoslof murres foraged in oceanic waters in close proximity to the colony. Murres breeding at both Pribilof colonies spent less time attending nests and had higher levels of the stress hormone corticosterone compared to murres breeding at Bogoslof, although chick-provisioning rates and fledging success were similar among the three colonies. Lower nest attendance and higher corticosterone suggest lower food availability in the Pribilof domain compared to the Bogoslof region. Murres breeding at the Pribilofs used different foraging strategies to buffer effects of food shortages on their reproduction: flight costs associated with longer distance night trips at St. George were presumably balanced by benefits of higher density and/or more lipid-rich prey in the continental shelf-break regions, whereas the additional distance of St.Paul from the continental shelf-break may have out weighed any energetic gain. Murres exhibited a remarkable degree of plasticity of foraging strategies in response to changes in their food availability, but the breeding success of murres did not reflect either food limitations or the colony proximity to productive oceanographic features.
Hansen, M. C., J. D. Yoakum, W. H. Pyle, and R. G. Anthony. 2001. New strategies for pronghorn food habit studies. Proceedings Pronghorn Antelope Workshop 19:71-94.	September 2001
Hammond, E. L., and R. G. Anthony. 2006. Mark-recapture estimates of population parameters for selected species of small mammals. Journal of Mammalogy 87:618-627.	June 2006
Gundersen, D. T., M. A. H. Webb, A. K. Fink, L. R. Kushner, M. S. Fitzpatrick, G. W Feist, and C. B. Schreck. 2006. Using blood plasma for monitoring organochlorine contaminants in juvenile white sturgeon, Acipenser transmontanus, from the lower Columbia River. Bulletin of Environmental Contamination and Toxicology.	September 2007
Gremillet, D., A. Lescroel, G. Ballard, K.M. Dugger, M. Massaro, and D.G. Ainley. 2018. Energetic fitness: Field metabolic rates assessed via 3D accelerometry complement conventional fitness metrics. Functional Ecology 32:1203-1213, DOI: 10.1111/1365-2435.13074.	May 2018
Gregory, S. V., H. W. Li and J. L. Li. 2002. Conceptual basis for ecological responses to dam removal. BioScience. 52:713-723.	January 2002
Greene, E., R.G. Anthony, V. Marr, and R. Morgan. 2009. Abundance and habitat associations of Washington ground squirrels in the Columbian Basin, Oregon. American Midland Naturalist 162:29-42.	January 2009
Gomez, D. M., R. G. Anthony, and J. P. Hayes. 2005. Influence of Thinning of Douglas-Fir Forests on Population Parameters and Diet of Northern Flying Squirrels. Journal of Wildlife Management 69:1670-1682.	October 2005
Gomez, D. M., R. G. Anthony, and J. M. Trappe. 2003. The influence of thinning on production of hypogeous fungus sporocarps in Douglas-fir forests of the northern Oregon Coast Range. Northwest Science 77:308-319.	October 2003
Golet, G. H., P. E. Seiser, A. D. McGuire, D. D. Roby, J. B. Fischer, K. J. Kuletz, D. B. Irons, T. A. Dean, S. G. Jewett and S. H. Newman. 2002. Long-term direct and indirect effects of the "Exxon Valdez" oil spill on pigeon guillemots in Prince William Sound AK. Marine Ecology Progress Series 241:287-304.	October 2002
Golet, G. H., K. J. Kuletz, D. D. Roby, and D. B. Irons. 2000. Adult prey choice affects chick growth and reproductive success of Pigeon Guillemots. Auk 117:82-91.	January 2000
Glenn, E. M., M. C. Hansen, and R. G. Anthony. 2004. Spotted owl home-range and habitat use in young forests of western Oregon. Journal of Wildlife Management 68:33-50.	September 2004
Gilligan-Lunda , E.K., A. Duarte, and J.T. Peterson. 2024. Habitat use of anadromous and amphidromous sturgeons in North America: a systematic review. Canadian Journal of Fisheries and Aquatic Sciences. 81(5): 508-524. https://doi.org/10.1139/cjfas-2023-0222 \| Abstract \| Publisher Website	May 2024	Sturgeons are among the most endangered fishes in the world. Although habitat restoration is often a primary mechanism to restore sturgeon populations, there is a paucity of information to identify habitat across broad scales to support these efforts due to typical small sample sizes, inadequate replication of studies, and limited spatial extent. We synthesized information across five species of amphidromous and anadromous sturgeon throughout North America to identify species-specific knowledge gaps and conduct a quantitative comparison of species-habitat relationships. Combined species habitat suitability indices indicate excellent sturgeon spawning habitat as depths between 4 – 11 meters and velocities of 0.6 – 1.4 m/s. River habitat for non-spawning fish is depths between 5.5 – 15.5 meters and velocities of 0.2 – 0.4 m/s. Estuary habitat is depths between 4 – 11 meters. No estuary velocity estimates were documented by any of the evaluated species. We provide some of the first baseline estimates of habitat use for many populations that can contribute towards development of empirically grounded decision support tools used for management decision making and to prioritize information needs for recovery.
Gervais, J. A., and R. G. Anthony. 2003. Chronic organochlorine contaminants, environmental variability, and the demographics of a burrowing owl population. Ecological Applications 13:1250-1262.	October 2003
Gervais, J. A., D. K. Rosenberg, and R. G. Anthony. 2003. Space use and pesticide exposure risk of male burrowing owls in an agricultural landscape. Journal of Wildlife Management 67:155-164.	January 2003
Gervais, J. A., C. M. Hunter, and R. G. Anthony. 2006. Interactive Effects of Prey and p, p'-DDE on Burrowing Owl Population Dynamics. Ecological Applications 16:666-677.	June 2006
Gamperl, A. K., K. J. Rodnick, H. A. Faust, E. C. Venn, M. T. Bennett, L. I. Crawshaw, E. R. Keeley, M. S. Powell, and H. W. Li. 2002. Metabolism, swimming performance, and tissue biochemistry of high desert redband trout: evidence for phenotypic differences in physiological function. Physiological and Biochemical Zoology 75(4): 413-431.	January 2002
Gall, A. E., D. D. Roby, D. B. Irons, and I. C. Rose. 2006. Differential Response in Chick Survival to Diet in Least and Crested Auklets. Marine Ecology Progress Series 308:279-291.	June 2006
Fritts, A.K, J.T. Peterson, P.D. Hazelton, and R.B. Bringolf. 2015. Evaluation of methods for assessing physiological biomarkers of stress in freshwater mussels. Canadian Journal of Fisheries and Aquatic Sciences. 72: 1450-1459. 10.1139/cjfas-2014-0564.	March 2015
Fritts, A.K, J.T. Peterson, J. M. Wisniewski, and R. B. Bringolf. 2015 Non-lethal assessment of freshwater mussel physiological response to changes in environmental factors. Canadian Journal of Fisheries and Aquatic Sciences. 72:1460-1468, 10.1139/cjfas-2014-0565	June 2015
Frisch, J.R. J.T. Peterson, K.K. Cecala, J.C. Maerz, C. R. Jackson, T. L. Gragson, and C. M. Pringle. PATCH OCCUPANCY OF STREAM FAUNA ACROSS A LAND COVER GRADIENT IN THE SOUTHERN APPALACHIANS, USA. Hydrobiologia (2016) 773:163–175	March 2016
Freeman, M. C., Buell, G. R., Hay, L. E., Hughes, W. B., Jacobson, R. B., Jones, J. W., Jones, S. A., Lafontaine, J. H., Odom, K. R., Peterson, J. T., Riley, J. W., Schindler, J. S., Shea, C. and Weaver, J. D. (2013), LINKING RIVER MANAGEMENT TO SPECIES CONSERVATION USING DYNAMIC LANDSCAPE-SCALE MODELS. River Research and Application 29: 906–918 \| Abstract	July 2013	Efforts to conserve stream and river biota could benefit from tools that allow managers to evaluate landscape-scale changes in species distributions in response to water management decisions. We present a framework and methods for integrating hydrology, geographic context and metapopulation processes to simulate effects of changes in streamflow on fish occupancy dynamics across a landscape of interconnected stream segments. We illustrate this approach using a 482 km2 catchment in the southeastern US supporting 50 or more stream fish species. A spatially distributed, deterministic and physically based hydrologic model is used to simulate daily streamflow for sub-basins composing the catchment. We use geographic data to characterize stream segments with respect to channel size, confinement, position and connectedness within the stream network. Simulated streamflow dynamics are then applied to model fish metapopulation dynamics in stream segments, using hypothesized effects of streamflow magnitude and variability on population processes, conditioned by channel characteristics. The resulting time series simulate spatially explicit, annual changes in species occurrences or assemblage metrics (e.g. species richness) across the catchment as outcomes of management scenarios. Sensitivity analyses using alternative, plausible links between streamflow components and metapopulation processes, or allowing for alternative modes of fish dispersal, demonstrate large effects of ecological uncertainty on model outcomes and highlight needed research and monitoring. Nonetheless, with uncertainties explicitly acknowledged, dynamic, landscape-scale simulations may prove useful for quantitatively comparing river management alternatives with respect to species conservation. Published 2012. This article is a U.S. Government work and is in the public domain in the USA.
Freeman, M. C., Buell, G. R., Hay, L. E., Hughes, W. B., Jacobson, R. B., Jones, J. W., Jones, S. A., Lafontaine, J. H., Odom, K. R., Peterson, J. T., Riley, J. W., Schindler, J. S., Shea, C. and Weaver, J. D. (2012), LINKING RIVER MANAGEMENT TO SPECIES CONSERVATION USING DYNAMIC LANDSCAPE-SCALE MODELS. River Research and Application. doi: 10.1002/rra.2575 \| Abstract	March 2012	Efforts to conserve stream and river biota could benefit from tools that allow managers to evaluate landscape-scale changes in species distributions in response to water management decisions. We present a framework and methods for integrating hydrology, geographic context and metapopulation processes to simulate effects of changes in streamflow on fish occupancy dynamics across a landscape of interconnected stream segments. We illustrate this approach using a 482 km2 catchment in the southeastern US supporting 50 or more stream fish species. A spatially distributed, deterministic and physically based hydrologic model is used to simulate daily streamflow for sub-basins composing the catchment. We use geographic data to characterize stream segments with respect to channel size, confinement, position and connectedness within the stream network. Simulated streamflow dynamics are then applied to model fish metapopulation dynamics in stream segments, using hypothesized effects of streamflow magnitude and variability on population processes, conditioned by channel characteristics. The resulting time series simulate spatially explicit, annual changes in species occurrences or assemblage metrics (e.g. species richness) across the catchment as outcomes of management scenarios. Sensitivity analyses using alternative, plausible links between streamflow components and metapopulation processes, or allowing for alternative modes of fish dispersal, demonstrate large effects of ecological uncertainty on model outcomes and highlight needed research and monitoring. Nonetheless, with uncertainties explicitly acknowledged, dynamic, landscape-scale simulations may prove useful for quantitatively comparing river management alternatives with respect to species conservation. Published 2012. This article is a U.S. Government work and is in the public domain in the USA.
Franklin, A. B., J. D. Nichols, R. G. Anthony, K. P. Burnham, G. C. White, E. D. Forsman, and D. R. Anderson. 2006. Comment on "Are survival rates of northern spotted owls biased?". Canadian Journal of Zoology 84:1375-1379.	October 2006
Fowler, L. G., J. L. Banks, J. D. McIntyre, and C. B. Schreck. 1988. Selective breeding of Abernathy fall chinook salmon: experimental design and hatchery performance of 1973-1977 broods. Abernathy Salmon Technical Center, Technical Transfer Series 86-1. Page 1.	January 1988
Foster, N. R., D. V. O'Conner, and C. B. Schreck. 1993. Gamete ripening and hormonal correlates in three strains of lake trout. Transactions of the American Fisheries Society 122:252-267.	January 1993
Foster, L.J., K.M. Dugger, C.A. Hagen, and D.A. Budeau. 2019. Acute Effects of Wildfire on Greater Sage-Grouse Vital Rates. Journal of Wildlife Management 83:121-134, DOI: 10.1002/jwmg.21573	January 2019
Foster, L.J., K.M. Dugger, C.A. Hagen and D.A. Budeau. 2018. Potential Effects of GPS Transmitters on Greater Sage-Grouse Survival in a Post-Fire Landscape. Wildlife Biology 2018: wlb.00479 doi: 10.2981/wlb.00479	December 2018
Foster, E. P., M. S. Fitzpatrick, G. W. Feist, C. B. Schreck, and J. Yates. 2001. Gonad organochlorine concentrations and plasma steroid levels in white sturgeon (ACIPENSER TRANSMONTANUS) from the Columbia River, USA. Bulletin Environmental Contamination Toxicology 67:239-245.	October 2001
Foster, E. P., M. S. Fitzpatrick, G. W. Feist, C. B. Schreck, J. Yates, and J. M. Sptsbergen, Jr. 2001. Plasma androgen correlation, EROD induction, reduced condition factor, and the occurrence of organochlorine pollutants in reproductively immature white sturgeon (ACIPENSER TRANSMONTANUS) from the Columbia River, USA. Archives Environmental Contamination Toxicology 41:182-191.	September 2001
Forsman, E. D., R. G. Anthony, and C. J. Zabel. 2004. Distribution and abundance of red tree voles in Oregon based on occurrence in pellets of northern spotted owls. Northwest Science 78:294-302.	October 2004
Forsman, E. D., R. G. Anthony, J. A. Reid, P. J. Loschl, S. G. Sovern, M. Taylor, B. L. Biswell, A. Ellingson, E. C. Meslow, G. S. Miller, K. Swindle, J. A. Thrailkill, F. F. Wagner, and D. E. Seaman. 2002. Natal and breeding dispersal of northern spotted owls. Wildlife Monographs, 149:1-36.	June 2002
Forsman, E. D., R. G. Anthony, E. C. Meslow, and C. J. Zabel. 2004. Diets and foraging behavior of northern spotted owls in Oregon. Journal of Raptor Research 38:214-230.	October 2004
Fitzpatrick, M. S., and C. B. Schreck. 1988. In vitro steroid secretion and production of gonadal proteins during sex differentiation in rainbow trout. American Zoologist 28:157A (Abstract).	January 1988
Fitzpatrick, M. S., W. M. Contreras-Sanchez, R. H. Milston, and C. B. Schreck. 1999. Fate of the masculinizing agent methyltestosterone in the pond environment. Pages 249-250. In: B. W. Green, C. C. Clifford, M. McNamara, and G. Montano (Editors). Central American Symposium on Aquaculture, San Pedro Sula. Honduras.	November 1999
Fitzpatrick, M. S., W. L. Gale, and C. B. Schreck. 1994. Binding characteristics of an androgen receptor in the ovaries of coho salmon, Oncorhynchus kisutch. General and Comparative Endocrinology 95:399-408.	January 1994
Fitzpatrick, M. S., J. M. Redding, F. D. Ratti, and C. B. Schreck. 1987. Plasma testosterone concentration predicts the ovulatory response of coho salmon (Oncorhynchus kisutch) to gonadotropin-releasing hormone analog. Canadian Journal Fisheries and Aquatic Sciences 44:1351-1357.	January 1987
Fitzpatrick, M. S., G. van Der Kraak, and C. B. Schreck. 1986. Profiles of plasma sex steroids and gonadotropin in coho salmon (Oncorhynchus kisutch) during final maturation. General and Comparative Endocrinology 62:437-451.	January 1986
Fitzpatrick, M. S., G. Feist, J. M. Redding, and C. B. Schreck. 1987. Whole body steroid content and in vitro steroid secretion during sexual differentiation in salmonids. Proceedings 3rd International Symposium Reproductive Physiology of Fish, St. Johns, Newfoundland. Page 130.	January 1987
Fitzpatrick, M. S., C. S. Schreck, R. L. Chitwood, and L. L. Marking. 1995. Evaluation of three candidate fungicides for treatment of adult spring chinook salmon. Progressive Fish-culturist 57: 153-55.	January 1995
Fitzpatrick, M. S., C. B. Schreck, F. Ratti, and R. Chitwood. 1987. Viabilities of eggs stripped from coho salmon at various times after ovulation. Progressive Fish-Culturist 49:177-180.	January 1987
Fitzpatrick, M. S., C. B. Pareira, and C. B. Schreck. 1993. In vitro steroid secretion during early development of monosex rainbow trout: sex differences, onset of pituitary control, and effects of dietary steroids. General and Comparative Endocrinology 91:199-215	January 1993
Fitzpatrick, M. S., B. K. Suzumoto, C. B. Schreck, and D. Oberbillig. 1984. Luteinizing hormone-releasing hormone analogue induces precocious ovulation in adult coho salmon (Oncorhynchus kisutch). Aquaculture 43:67-73.	January 1984
Fischer, K.N., R.M. Suryan, D.D. Roby, and G.R. Balogh. 2009. Post-breeding season distribution of black-footed and Laysan albatrosses satellite-tagged in Alaska: interspecific differences in spatial overlap with North Pacific fishers. Biological Conservation 142:752-760.	July 2009
Feist, G., and C. B. Schreck. 2002. Ontogeny of the stress response in chinook salmon, Oncorhynchus tshawytscha. Fish Physiology and Biochemistry 25:31-40.	October 2002
Feist, G., and C. B. Schreck. 1996. Brain-pituitary-gonadal axis during early development and sexual differentiation in the rainbow trout. General and Comparative Endocrinology 102:394-409.	January 1996
Feist, G., and C. B. Schreck. 1990. Hormonal content of commercial fish diets and of young coho salmon, (Oncorhynchus kisutch), receiving these diets. Aquaculture 86:63-75.	January 1990
Feist, G., J. P. Van Eenennaam, S. I. Doroshov, C. B. Schreck, R. P. Schneider, and M. S. Fitzpatrick. 2004. Early identification of sex in cultured white sturgeon, Acipenser transmontanus, using plasma steroid levels. Aquaculture 232:581-590.	September 2004
Feist, G., C. B. Schreck, and A. J. Gharrett. 1996. Controlling the sex of salmonids. Oregon Sea Grant ORESU-H-96-001. Page 26.	January 1996
Feist, G., C. B. Schreck, M. S. Fitzpatrick, and J. M. Redding. 1990. Sex steroid profiles of coho salmon, Oncorhynchus kisutch, during early development and sexual differentiation. General and Comparative Endocrinology 80:299-313.	January 1990
Feist, G., C. -G. Yeoh, M. S. Fitzpatrick, and C. B. Schreck. 1994. The production of functional sex reversed male rainbow trout with 17�-methyltestosterone and 11 -hydroxyandrostenedione. Aquaculture 131:145-152.	January 1994
Feist, G., C. -G. Yeoh, M. S. Fitzpatrick, and C. B. Schreck. 1994. The production of functional sex reversed male rainbow trout with 17?-methyltestosterone and 11 -hydroxyandrostenedione. Aquaculture 131:145-152.	January 1994
Feist, G. W., M. H. Webb, D. T. Gundersen, E. P. Foster, C. B. Schreck, A. G. Maule, and M. S. Fitzpatrick. In Press. Evidence of detrimental effects of environmental contaminants on growth and reproductive physiology of white sturgeon in impounded areas of the Columbia River. Environmental Health Perspectives.	January 2005
Feist, G. W., M. H. Webb, D. T. Gundersen, E. P. Foster, C. B. Schreck, A. G. Maule, and M. S. Fitzpatrick. 2005. Evidence of detrimental effects of environmental contaminants on growth and reproductive physiology of white sturgeon in impounded areas of the Columbia River. Environmental Health Perspectives. 113:1675-1682.	January 2005
Favrot, S.D., B.C. Jonasson, and J.T. Peterson. Fall and Winter Microhabitat Use and Suitability for Spring Chinook Salmon Parr in a Pacific Northwest River, USA. Transactions of the American Fisheries Society 147:151-170	April 2018
Fausch, K. D., C. E. Torgersen, C. V. Baxter, and H. W. Li. 2002. Landscapes to riverscapes: bridging the gap between research and conservation of stream fishes. BioScience 52:483-498.	June 2002
Fagre, D.B., C.W. Charles, C.D. Allen, C. Birkeland, F.S. Chapin III, P.M. Groffman, G.R. Gunternspergen, A.K. Knapp, A.D. McGuire, P.J. Mulholland, D.P.C. Peters, D.D. Roby, and G. Sugihara. 2009. Thresholds of climate change in ecosystems. A report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. U.S. Geological Survey, Reston VA, USA. 170 pages.	January 2009
Faaborg, J., W.J. Arendt, J.D. Toms, K.M. Dugger, W.A. Cox, and M.C. Mora. 2013. Long-term decline of a winter resident bird community in Puerto Rico. Biodiversity and Conservation 22:63-75.	January 2013
Evans, A.F., Q. Payton, A. Turecek, B. Cramer, K. Collis, D.D. Roby, P.J. Loschl, L. Sullivan, J. Skalski, M. Weiland, and C. Dotson. In review. Avian predation on juvenile salmonids: spatial and temporal analysis based on acoustic and passive integrated transponder tags. Transactions of the American Fisheries Society 145:860-877. \| Abstract	June 2016	We evaluated the impact of avian predation on juvenile steelhead (Oncorhynchus mykiss), yearling Chinook salmon (O. tshawytscha), and subyearling Chinook salmon by piscivorous waterbirds from 11 different breeding colonies in the Columbia River Basin, USA, during 2012 and 2014. Fish were double-tagged with both acoustic and passive integrated transponder (PIT) tags and tracked via a network of hydrophone arrays that provided detections of fish at various spatial and temporal scales during out-migration. Recoveries of PIT tags on bird colonies, coupled with last known detections of live fish passing arrays, were used to quantify where predation occurred, when it occurred, and the impact of birds on the survival of tagged fish. Results indicated that avian predation was a substantial source of steelhead mortality, with predation probabilities (proportion of available fish consumed) ranging from 0.06–0.28 for fish traveling through the lower Snake, lower Columbia, and middle Columbia rivers. For yearling Chinook and subyearling Chinook salmon, estimates ranged from 0.03–0.09 and 0.01–0.05 of the available tagged fish, respectively. Predation was generally highest on smolts by gulls (Larus spp.) near hydroelectric dams and by Caspian terns (Hydroprogne caspia) within the reservoirs. No predation hotspots were identified for foraging double-crested cormorants (Phalacrocorax auritus) or American white pelicans (Pelecanus erythrorhynchos). A comparison of total mortality (1-survival) relative to mortality from colonial waterbirds indicated that avian predation was one of the greatest sources of mortality affecting survival of steelhead and yearling Chinook salmon during out-migration. Predation by colonial waterbirds on subyearling Chinook salmon, however, was generally low and a minor component of total mortality. Results indicate that the use of both acoustic and PIT tag technologies can be used to quantify where and when mortality occurs and what fraction of that mortality is due to colonial waterbird predation relative to other, non-avian mortality sources.
Evans, A.F., N.J. Hostetter, D.D. Roby, K. Collis, D.E. Lyons, B.P. Sandford, and R.D. Ledgerwood. 2012. Systemwide evaluation of avian predation on juvenile salmonids from the Columbia River based on recoveries of Passive Integrated Transponder tags. Transactions of the American Fisheries Society 141:975-989.	July 2012
Evans, A.F., D.D. Roby, K. Collis, B.M. Cramer, J.A. Sheggeby, L.J. Adrean, D.S. Battaglia, and D.E. Lyons. 2011. Recovery of coded wire tags at a Caspian tern colony in San Francisco Bay: A technique to evaluate impacts of avian predation on juvenile salmonids. North America Journal of Fisheries Management 31: 79-87.	January 2011
Evans, A. F., N. J. Hostetter, K. Collis, D. D. Roby, and F. J. Loge. 2014. Relationship between juvenile fish condition and survival to adulthood in steelhead. Transactions of the American Fisheries Society 143:899-909. doi: 10.1080/00028487.2014.901248.	April 2014
Ejike, C., and C. B. Schreck. 1980. Stress and social hierarchy rank in coho salmon. Transactions American Fisheries Society 109:423-426.	January 1980
Edwards, E. A., H. W. Li, and C. B. Schreck. 1983. Species Profile: Longnose Dace. U. S. Fish and Wildlife Service, National Coastal Ecosystems Team Report.	January 1983
Dycus, J.C., J.M. Wisniewski, and J.T. Peterson. 2015. The effects of flow and stream characteristics on freshwater mussel growth in a Southeast US river basin. Freshwater Biology 60: 395-409. \| Abstract	January 2015	Environmental and spatial variation can potentially influence mussel populations through acute and chronic mechanisms. The objectives of this study were to identify and quantify the chronic factors affecting freshwater mussel growth. Live mussels were collected within the lower Flint River Basin, sacrificed, and their shells were thin-sectioned. Thin sections revealed the production of internal annuli, which were used to determine individual ages and estimate annual growth. I evaluated the relation between annual growth and presumed variables responsible for altering growth using mixed linear models. Growth was indicated to vary in relation to seasonal streamflow, species, age, tagging, channel confinement, and physiographic province. The effect of tagging should be accounted for in subsequent mark-recapture studies, and species- and site-specific characteristics should be considered when implementing management decisions to prevent future harm to freshwater mussel populations.
Dugger, Katie M., Alan B. Franklin, Damon B. Lesmeister, Raymond J. Davis, J. David Wiens, Gary C. White, James D. Nichols, James E. Hines, Charles B. Yackulic, Carl J. Schwarz, Steven H. Ackers, L. Steven Andrews, Larissa L. Bailey, Robin Bown, Jesse Burgher, Kenneth P. Burnham, Peter C. Carlson, Tara Chestnut, Mary M. Conner, Krista E. Dilione, Eric D. Forsman, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, Julianna M. Jenkins, William L. Kendall, David W. Lamphear, Christopher McCafferty, Trent L. McDonald, Janice A. Reid, Jeremy T. Rockweit, David C. Simon, Stan G. Sovern, James K. Swingle, and Heather Wise. 2021. Estimating northern spotted owl pair detection probabilities based on call-back surveys associated with long-term mark-recapture studies. USGS Open Source Report.	July 2023
Dugger, KM. 2022. The Northern Spotted Owl: the conservation history of an iconic Oregon species. Pages 138-143 in SM Haig, DD Roby, and TA Haig, eds. As the Condor Soars: conserving and restoring Oregon's birds. Oregon State University Press, Corvallis, OR.	December 2022
Dugger, K.M., G. Ballard, D.G. Ainley, P.O'B Lyver, and C. Schine. 2014. Adélie penguins coping with environmental change: results from a natural experiment at the edge of their breeding range. Frontiers in Ecology and Evolution.	October 2014
Dugger, K.M. 2021. ADPE PROJECT ANT-1543459: Collaborative: Adélie Penguin response to climate change in the Ross Sea region - a full lifecycle approach. Project Outcomes Summary for Lay Public.	July 2021
Dugger, K.M. 2015. ANT-0944358: Adélie penguin response to climate change at the individual, colony and metapopulation levels. Project Outcomes Summary for Lay Public.	November 2015
Dugger, K. M., F. Wagner, R. G. Anthony, and G. S. Olson. 2005. The Relationship Between Habitat Characteristics and Demographic Performance of Northern Spotted Owls in Southern Oregon. The Condor 107:863-878.	October 2005
Dugger, K. M., E. D. Forsman, A. B. Franklin, R. J. Davis, G. C. White, C. J. Schwarz, K. P. Burnham, J. D. Nichols, J. E. Hines, C. B. Yackulic, P. F. Doherty, Jr., L. Bailey, D. A. Clark, S. H. Ackers, L. S. Andrews, B. Augustine, B. L. Biswell, J. Blakesley, P. C. Carlson, Matthew J. Clement, L. V. Diller, E. M. Glenn, A. Green, S. A. Gremel, D. R. Herter, J. M. Higley, J. Hobson, R. B. Horn, K. P. Huyvaert, C. McCafferty, T. McDonald, K. McDonnell, G. S. Olson, J. A. Reid, J. Rockweit, V. Ruiz, J. Saenz, S. G. Sovern. 2016. The effects of habitat, climate and Barred Owls on long-term demography of Northern Spotted Owls. The Condor: Ornithological Applications Volume 118:57–116, DOI: 10.1650/CONDOR-15-24.1	February 2016
Dugger, K. M. 2016. Book Review: Penguins: The Ultimate Guide, in Faaborg, J. (ed.), Ornithological Literature Book Reviews. The Wilson Journal of Ornithology, 128:208-215.	March 2016
Dugger, B.D.,T.T. Fox, J.M. Coluccy, K.M. Dugger, M.J. Petrie, and D. Kraege. In Review. Mallards in Eastern Washington: breeding demographics for a species outside its core distribution. Journal of Wildlife Management 80:500-509, DOI:10.1002/jwmg.1030.	April 2016
Duchac, LS, DB Lesmeister, KM Dugger, and RJ Davis. 2021. Differential landscape use by forest owls two years after a mixed-severity wildfire. Ecosphere 12(10):e03770. 10.1002/ecs2.3770	October 2021
Duchac, L.S., D.B. Lesmeister, K.M. Dugger, Z.J. Ruff, and R.J. Davis. 2020. Passive acoustic monitoring effectively detects Northern Spotted Owls and Barred Owls over a range of forest conditions. The Condor 122: 1–22, DOI: 10.1093/condor/duaa017.	April 2020
Duarte, A., S.L. Whitlock, and J.T. Peterson. 2019. Species Distribution Modeling. Volume 2, Pages 189-198 in B. Fath editor. Encyclopedia of Ecology, Second Edition. Elsevier, Amsterdam	October 2018
Duarte, A., J.T. Peterson, C.A. Pearl, J.C. Rowe, B. McCreary , S.K. Galvan, and M.J. Adams. 2020. Estimation of metademographic rates and landscape connectivity for a conservation-reliant anuran. Landscape Ecology 35: 1459–1479. https://doi.org/10.1007/s10980-020-01030-8 \| Abstract	April 2020	<i>Context </i>Amphibian conservation efforts commonly assume populations are tied to waterbodies that collectively function as a metapopulation. This assumption is rarely evaluated, and there is a need to understand the degree of connectivity among patches to appropriately define, manage, and conserve biological populations. <br><i> </i><br><i>Objectives </i>Our objectives were to quantify local persistence, colonization, and recruitment (metademographic rates) in relation to habitat attributes, evaluate the influence of the spatial arrangement of patches on landscape-scale population dynamics, and estimate the scale at which metapopulation dynamics are occurring for Oregon spotted frog (<i>Rana pretiosa</i>).<br><i> </i><br><i>Methods </i>We collected <i>R. pretiosa</i> detection/non-detection data and habitat information from 93 sites spread throughout the species’ core extant range in Oregon, USA, 2010–2018. We developed a spatial multistate dynamic occupancy model to analyze these data.<br><i> </i><br><i>Results </i>Results indicated the proportion of sites occupied by <i>R. pretiosa</i> was relatively stable despite regular turnover in site occupancy. <i>Rana pretiosa</i> were likely to colonize a site if it was within 4.49–7.70 km, and <i>R. pretiosa</i> populations within 1 km are at the appropriate spatial scale for effective population management. <i>Rana pretiosa</i> metademographic rates were strongly tied to water availability, vegetation characteristics, and beaver dams.<br><i> </i><br><i>Conclusions </i>Our analysis provides critical information to identify the appropriate spatial scale for effective population management, estimates the distance at which populations are connected, and quantifies the effects of hypothesized threats to species at a landscape scale. We believe this model will prove to be useful to inform conservation and management strategies for multiple species.
Duarte, A., C.A. Pearl, M.J. Adams, and J.T. Peterson. A new parameterization for integrated population models to document amphibian reintroduction efforts. Ecological Applications.	July 2017
Duarte, A. and J.T. Peterson. 2021. Space‐for‐time is not necessarily a substitution when monitoring the distribution of pelagic fishes in the San Francisco Bay‐Delta. Ecology and Evolution 11:16727-16744. https://doi.org/10.1002/ece3.8292 \| Abstract \| Publisher Website	October 2021	Occupancy models are often used to analyze long-term monitoring data to better understand how and why species redistribute across dynamic landscapes while accounting for incomplete capture. However, this approach requires replicate detection/non-detection data and many long-term monitoring programs lack temporal replicate surveys at a sample unit. In such cases, it has been suggested that surveying subunits within a larger sample unit may be an efficient substitution (i.e., space-for-time substitution). Still, the efficacy of fitting occupancy models using a space-for-time substitution has not been fully explored and is likely context dependent. Herein, we fit multistate occupancy models to Delta Smelt (<i>Hypomesus transpacificus</i>) and Longfin Smelt (<i>Spirinchus thaleichthys</i>) catch data collected by two different monitoring programs in the San Francisco Bay-Delta, USA. We demonstrate how our inferences concerning the distribution and relative abundance of these species changes when using a space-for-time substitution. Specifically, we found the probability that a sample unit was occupied and contained a large number of fish was much greater when using a space-for-time substitution, presumably due to the change in the spatial scale of our inferences. Furthermore, our results indicate that as the spatial scale of our inferences increased our ability to detect environmental effects on system dynamics decreased, which we suspect is related to the tradeoffs associated with spatial grain and extent. Overall, our findings highlight the importance of considering how the unique characteristics of monitoring programs influences inferences, which has broad implications for how to appropriately leverage existing long-term monitoring data to understand the distribution and relative abundance of species.
Duarte, A. M.J. Adams, and J.T. Peterson. Fitting N-mixture models to count data with unexplained heterogeneity: bias, diagnostics, and alternative approaches. Ecological Modelling	January 2018
Dolan, B.P., K. M. Fisher, M. E. Colvin, S. E. Benda, J. T. Peterson, M. L. Kent, and C. B. Schreck. 2016. Innate and adaptive immune responses in migrating spring-run adult Chinook Salmon, Oncorhynchus tshawytscha. Fish and Shellfish Immunology 48:136-44	February 2016
Diller, L, K Hamm, D Early, D Lamphear, K Dugger, C Yackulic, C Schwarz, P. Carlson, and T McDonald. 2016. Demographic response of Northern Spotted Owls to Barred Owl removal in Coastal Northern California. Journal of Wildlife Management 80:691-707, DOI: 10.1002/jwmg.1046.	April 2016
Dickhoff, W. W., B. R. Beckman, D. A. Larsen, C. V. W. Mahnken, C. B. Schreck, C. Sharpe, and W. S. Zuagg. 1995. Quality assessment of hatchery-reared spring chinook salmon smolts in the Columbia River Basin. American Fisheries Society Symposium 15:292-302.	January 1995
Diaz, L., A. Duarte, M. Beakes, and J.T. Peterson. 2023 Ontogenetic niche partitioning in a facultatively anadromous salmonid: implications for population dynamics. Biological Conservation 49: https://doi.org/10.1016/j.gecco.2023.e02770 \| Abstract	October 2023	Species management and conservation efforts are often based on range-wide trends, assuming dynamic equilibrium across space and time, even though fine-scale variability may be driving local dynamics. <i>Oncorhynchus mykiss</i> is a globally introduced, facultatively anadromous salmonid that is experiencing demographic shifts characterized by greater proportions of population remaining in freshwater. The degree of niche overlap between age classes of <i>O. mykiss</i> in freshwater environments may dictate how resources are partitioned within populations. We conducted a meta-analysis of age-specific <i>O. mykiss</i> habitat use to evaluate the degree of niche-partitioning between age classes and how age-specific habitat use relates to global in-stream and landscape level habitat variation. <i>O. mykiss</i> used deeper habitats as they grew towards maturity but do not partition habitat based on water velocity or substrate composition. As annual precipitation increased, <i>O. mykiss</i> used deeper and shallower habitats, and as summer air temperature increased, O. mykiss used shallower habitats. <i>O. mykiss</i> of native origin used deeper habitats than nonnative <i>O. mykiss</i>. However, A large proportion (42-99%) of variation in habitat use was associated with study or ecoregion, making climactic predictors unreliable for predictive species distribution or population dynamics models. Although the exact mechanism driving geographic variability in <i>O. mykiss</i> habitat use are not fully understood, our results provide the data to aid our understanding of how demographic shifts affect population resilience under climate change. Further research incorporating individual competitive behavior in predictive population models may elucidate the links between resource availability, demographic rates, and long-term <i>O. mykiss</i> population stability.
Delahunty, G., C. B. Schreck, and V. L. deVlaming. 1980. Effects of photoperiod on plasma corticoid levels in the goldfish (Carassius auratus): role of the pineal. Comparative Biochemistry and Physiology 65A:355-358.	January 1980
Delahunty, G., C. B. Schreck, J. Specker, J. Olcese, M. J. Vodicnik, and V. deVlaming. 1979. The effects of light reception on circulating estrogen levels in female goldfish, Carassius auratus: importance of retinal pathways versus the pineal. General and Comparative Endocrinology 38:148-152.	January 1979
DeWeber, J.T., J.T.Peterson, C. Sharpe, M.L. Kent, M.E. Colvin, C.B. Schreck. A hidden-process model for estimating prespawn mortality using carcass survey data. North American Journal of Fisheries Management	January 2017
DeWeber, J.T. and J.T. Peterson. 2020. Identifying and implementing environmental flows through structured decision-making: case study from the Willamette River, Oregon, USA. Journal of the American Water Resources Association 1– 16. https://doi.org/10.1111/1752-1688.12845	April 2020
Davis, MJ, KL Poppe, JM Rybczyk, EE Grossman, I Woo, JW Chamberlin, M Totman, T Zackey, F Leonetti, S Shull, and SEW De La Cruz. 2024. Vulnerability to sea-level rise varies among estuaries and habitat types: lessons learned from a network of surface elevation tables in Puget Sound. Estuaries and Coasts. https://doi.org/10.1007/s12237-024-01335-w	March 2024
Davis, MJ, J Anthony, EJ Ward, J Firman, and C Lorion. 2023. Coherence among Oregon Coast coho salmon populations highlights increasing relative importance of marine conditions for productivity. Fisheries Oceanography 32:293-310. https://doi.org/10.1111/fog/12630	February 2023
Davis, MJ, I Woo, SEW De La Cruz, CS Ellings, and G Nakai. 2024. Allochthonous marsh subsidies support food web productivity in a large-river delta and its surrounding ecosystem mosaic. PLoS ONE 19:e0296836. https://doi.org/10.1371/journal.pone.0296836	February 2024
Davis, MJ, I Woo, CS Ellings, S Hodgson, DA Beauchamp, G Nakai, and SEW De La Cruz. 2021. A climate-mediated shift in the estuarine habitat mosaic limits prey availability and reduces nursery quality for juvenile salmon. Estuaries and Coasts 45:1445-1464. https://doi.org/10.1007/s12237-021-01003-3 \| Publisher Website	October 2021
Davis, M. W., and C. B. Schreck. 2005. Responses by Pacific halibut to air exposure: Lack of correspondence among plasma constituents and mortality. Transactions of the American Fisheries Society. 134:991-998.	January 2005
Davis, M. W., B. L. Olla, and C. B. Schreck. 2001. Stress induced by hooking, net towing, elevated seawater temperature and air in sablefish: Lack of concordance between mortality and physiological measures of stress. Journal of Fish Biology 58:1-15.	June 2001
Davis, L. E., and C. B. Schreck. 1997. The energetic response to handling stress in juvenile coho salmon. Transactions of American Fisheries Society 126:248-258.	January 1997
Danielson, P. B., M. T. Hoversten, M. Fitzpatrick, C. Schreck, H. Akil and R. M. Dores. 2001. Sturgeon orphanin, A "molecular fossil" that bridges the opioids and orphanin FQ/N gap. Journal of Bioogical Chemistry 276:22114-22119.	January 2001
Dambacher, J. M., P. A. Rossignol, H. W. Li, and J. M. Emlen. 2001. Dam breaching and chinook recovery. Science 291:939.	January 2001
Dambacher, J. M., H. W. Li, and P. A. Rossignol. 2003. Qualitative stability and ambiguity in model ecosystems. American Naturalist 161(6):876-888.	January 2003
Dambacher, J. M., H. W. Li, and P. A. Rossignol. 2003. Qualitative predictions in model ecosystems. Ecological Modeling.	January 2003
Dambacher, J. M., H. W. Li, and P. A. Rossignol. 2002. Relevance of community structure in assessing indeterminacy of ecological predictions. Ecology 83:1372-1385.	September 2002
Cushing, D.A., D.D. Roby, and D.B. Irons. 2018. Patterns of distribution, abundance, and change over time in a subarctic marine bird community. Deep-Sea Research II 147: 148-163.	January 2018
Currens, K., C. B. Schreck, and H. W. Li. 1988. Reexamination of the use of otolith nuclear dimensions to identify juvenile anadromous and nonanadromous rainbow trout, Salmo gairdneri. Fisheries Bulletin 86:161-163.	January 1988
Currens, K. P., C. S. Sharpe, R. Hjort, C. B. Schreck, and H. W. Li. 1989. Effects of different feeding regimes on the morphometrics of chinook salmon (Oncorhynchus tshawytscha) and rainbow trout (O. mykiss). Copeia 689-695.	January 1989
Currens, K. P., C. B. Schreck, and H. W. Li. 1990. Allozyme and morphological variability of rainbow trout (Oncorhynchus mykiss) above and below waterfalls in the Deschutes River, OR. Copeia 1990:730-746.	January 1990
Currens, K. P., A. R. Hemmingsen, R. A. French, D. V. Buchanan, C. B. Schreck, and H. W. Li. 1997. Susceptibility to disease and introgression in a wild population of rainbow trout. North American Journal of Fish Management 17:1065-1078.	January 1997
Cronin MR, Zavaleta ES, Beltran RS, Payne A, Termini V and Jones MS. (2024). Testing the effectiveness of interactive training on sexual harassment and assault in field science. Scientific Reports, 14(1), 523. https://doi.org/10.1038/s41598-023-49203-0 \| Abstract \| Download \| Publisher Website	January 2024	Fieldwork is a critical tool for scientific research, particularly in applied disciplines. Yet fieldwork is often unsafe, especially for members of historically marginalized groups and people whose presence in scientific spaces threatens traditional hierarchies of power, authority, and legitimacy. Research is needed to identify interventions that prevent sexual harassment and assault from occurring in the first place. We conducted a quasi-experiment assessing the impacts of a 90-min interactive training on field-based staff in a United States state government agency. We hypothesized that the knowledge-based interventions, social modeling, and mastery experiences included in the training would increase participants’ sexual harassment and assault prevention knowledge, self-efficacy, behavioural intention, and behaviour after the training compared to a control group of their peers. Treatment–control and pre-post training survey data indicate that the training increased participants’ sexual harassment and assault prevention knowledge and prevention self-efficacy, and, to a lesser extent, behavioural intention. These increases persisted several months after the training for knowledge and self-efficacy. While we did not detect differences in the effect of the training for different groups, interestingly, post-hoc tests indicated that women and members of underrepresented racial groups generally scored lower compared to male and white respondents, suggesting that these groups self-assess their own capabilities differently. Finally, participants’ likelihood to report incidents increased after the training but institutional reports remained low, emphasizing the importance of efforts to transform reporting systems and develop better methods to measure bystander actions. These results support the utility of a peer-led interactive intervention for improving workplace culture and safety in scientific fieldwork settings.
Cravens A., Jones M. S., Ngai C., Zarestky J., and Love, H. (2022). Science facilitation: navigating the intersection of intellectual and interpersonal expertise in scientific collaboration. Humanities & Social Sciences Communications, 9, 256. https://doi.org/10.1057/s41599-022-01217-1 \| Abstract	July 2022	Today’s societal challenges, such as climate change and global pandemics, are increasingly complex and require collaboration across scientific disciplines to address. Scientific teams bring together individuals of varying backgrounds and expertise to work collaboratively on creating new knowledge to address these challenges. Within a scientific team, there is inherent diversity in disciplinary cultures and preferences for interpersonal collaboration. Such diversity contributes to the potential strength of the created knowledge but can also impede progress when teams struggle to collaborate productively. Facilitation is a professional practice-based form of interpersonal expertise that supports group members to do their best thinking. Although facilitation has been demonstrated to support group functioning in a wide range of contexts, its role in supporting scientific teams has been largely overlooked. This essay defines scientific facilitation as a form of interactional expertise and explains how facilitating scientific teams requires skills in managing interpersonal interactions as well as understanding how different types of disciplinary knowledge integrate in the creation of new knowledge. Next, it explains how this science facilitation expertise may be developed through metacognition. Finally, it provides examples of how scientific facilitation could be more widely incorporated into research by describing three pathways to expand the use of facilitation theory and techniques in collaborative scientific research: developing facilitation skills among scientists leading teams, using broadly trained facilitators, and using specialised science facilitators. The strengths and risks of each path are discussed, and criteria are suggested for selecting the right approach for a given team science project.
Courtot, K.N., Roby, D.D., Adkins, J.Y., Lyons, D.E., King, D.T., and Larsen, R.S. 2012. Colony connectivity of Pacific Coast double-crested cormorants based on post-breeding dispersal from the region's largest colony. Journal of Wildlife Management 76:1462-1471.	September 2012
Courtot, K. N., D. D. Roby, L. H. Kerr, D. E. Lyons, J. Y. Adkins. A Low-disturbance Capture Technique for Ground-nesting Double-crested Cormorants (Phalacrocorax auritus). \| Abstract	June 2016	Capturing breeding adults of colonially nesting species can entail risks of nest failure and even colony abandonment, especially in species that react strongly to human disturbance. A low-disturbance technique for capturing specific adult Double-crested Cormorants (Phalacrocorax auritus) at a ground-nesting colony was developed to reduce these risks and is described here. Nesting habitat enhancement was used to attract Double-crested Cormorants to nest adjacent to above-ground tunnels constructed so that researchers could capture birds by hand. Using this technique, Double-crested Cormorants (n = 87) were captured during the incubation and chick-rearing stages of the nesting cycle. Unlike alternative capture techniques, this approach allowed targeting of specific individuals for capture and recapture, minimized local disturbance, and eliminated colony-wide disturbances. The tunnel-based system presented here could be adapted to capture adults or to access the nest contents of other ground-nesting colonial species that are inclined to nest in areas of enhanced nesting habitat and adapt to anthropogenic structures in their nesting area. This system would be particularly beneficial for other wary and easily disturbed species.
Couch, C.E., T.N. Neal, C.L. Herron, M.L. Kent, C.B. Schreck, and J.T. Peterson. 2023. Gut microbiome composition associates with chronically elevated corticosteroids and morbidity in Chinook salmon (Oncorhynchus tshawytscha) Scientific Reports 13(1), 2567. \| Abstract	June 2023	Pacific salmon experience prolonged elevation in corticosteroid hormones during important life history events including migration, reproduction, and senescence. These periods of elevated corticosteroids are known to correspond with changes to immunity and energy metabolism, therefore fish may be particularly vulnerable to mortality due to disease, thermal stress, and other external stressors at these times. Understanding and predicting survival and performance of fish with chronically elevated corticosteroids is important for understanding the potential impacts of anthropogenic stressors and management decisions on salmon population health. Numerous studies in human and laboratory systems have demonstrated mechanistic links between corticosteroids and host-associated microbial communities, and recent studies suggest that stress-induced increased cortisol associates with microbial community shifts in salmonids. In this work, we experimentally evaluated the relationships between gut microbiome composition, chronically elevated corticosteroids, and mortality in juvenile Chinook salmon (<i>Oncorhynchus tshawytscha</i>). We found that treatment with slow-release implants of the corticosteroids cortisol or dexamethasone resulted in significant changes to the gut microbiome that persisted up to 7 weeks post-treatment. We also found that morbidity in cortisol- and dexamethasone-treated fish strongly associated with microbiome composition, suggesting that the gut microbiome reflects individual differences in how fish respond to chronic elevation of corticosteroids. Additionally, we analyzed a small number of samples from adult fish in various stages of senescence and found that the microbiome of corticosteroid treated juveniles resemble those of senescent adults. Overall, findings from this work point toward the gut microbiome as a potential biomarker of mortality risk during periods of chronic corticosteroid elevation.
Couch, C.E., M. Colvin, R.L. Chitwood, J.T. Peterson, C.B. Schreck. 2022. Scope of the cortisol stress response in Chinook salmon during maturation. Fisheries Research 254: https://doi.org/10.1016/j.fishres.2022.106416 \| Abstract	October 2022	In semelparous Pacific salmon, increased cortisol levels accompany sexual maturation and may be related to the rapid senescence and death that occur after spawning. In fish with extremely high cortisol, pre-spawning mortality is more likely. This may be because elevated cortisol is accompanied by energy depletion and reduces the immune capacity of sexually maturing individuals, thus increasing their susceptibility to parasites and pathogens. Several studies have measured cortisol levels in Pacific salmon during the last few weeks prior to spawning, but there is a lack of information regarding longer-term cortisol dynamics of migrating adult Pacific salmon, as well as how cortisol dynamics manifest under low stress conditions. A better understanding of interrenal secretory capacity during sexual maturation could contribute to understanding the extremely high pre-spawning mortality experienced by some threatened<i> </i>populations of Pacific salmon. The objective of this study was to determine the scope of the cortisol stress response in spring Chinook salmon as well as the dynamics of resting cortisol during maturation. We found that resting and stressed cortisol levels increased during the last three months prior to spawning, and that sexually maturing Chinook salmon are able to mount a cortisol response to acute stressors when resting levels are elevated during maturation. We also found that there is significant inter-individual variation in the effects of stress and time on cortisol dynamics, which has implications for population resilience to anthropogenic stressors in wild populations.
Couch, C.C., J.T. Peterson, and P. H. Heimowitz. 2023. Evaluating the institutional and ecological effects of invasive species prevention policy: a case study from the US Fish and Wildlife Service. Management of Biological Invasions 14(2). https://doi.org/10.3391/mbi.2023.14.2.06 \| Abstract	March 2023	Wildlife and natural resource institutions play key roles in invasive species monitoring and management. Paradoxically, the extensive fieldwork undertaken by these institutions and their partners may result in the inadvertent movement and spread of invasive species within and between sensitive ecosystems. Internal guidelines and policies designed to prevent the spread of invasive species by management institutions and their partners could therefore be high-leverage tools for invasive species prevention. However, as large, complex organizations seek to implement policies to limit the spread of invasive species, they may face challenges related to accommodating the wide diversity of programs, activities, and ecosystems they manage. Prevention policies may also be met with resistance due to the costs of implementation unless concrete benefits can be demonstrated. Assessing and communicating the effects of prevention policies could motivate improved implementation and adherence by institutional units and partners and could help inform adaptive policy changes. However, assessing the effectiveness of invasive species prevention presents a unique set of challenges, including incomplete data on invasive species distribution and pathways, that make it difficult to measure the effects of prevention efforts. In this work, we present a conceptual framework for evaluating institutional policies for invasive species prevention. We describe a flexible, multifaceted approach that considers policy implementation and adherence as well as ecological outcomes. We discuss potential application of this framework using a policy recently implemented by Interior Regions 9 and 12 of the U.S. Fish and Wildlife Service as a case study.
Contreras-Sanchez, W. M., M. S. Fitzpatrick, G. Marquez-Couturier, and C. B. Schreck. 1999. Masculinization of Nile Tilapia (Oreochromis niloticus) by immersion in synthetic androgens: timing and efficacy. Pages 246-248. In: B. W. Green, C. C. Clifford, M. McNamara, and G. Montano (Editors). Central American Symposium on Aquaculture, San Pedro Sula. Honduras.	November 1999
Contreras-Sanchez, W. M., C. B. Schreck, M. S. Fitzpatrick, and C. B. Pereira. 1998. Effects of stress on the reproductive performance of rainbow trout. (Oncorhynchus mykiss). Biological Reproduction 58:439-447.	January 1998
Conroy, M.J. and J.T. Peterson. 2013. DECISION MAKING IN NATURAL RESOURCE MANAGEMENT: A STRUCTURED, ADAPTIVE APPROACH. Wiley- Blackwell \| Publisher Website	April 2013
Connon, R.E., L.S. D’Abronzo, N.J. Hostetter, A Javidmehr, D.D. Roby, A.F. Evans, F.J. Loge, and I. Werner. 2012. Transcription profiling in environmental diagnostics: Health assessments in Columbia River basin steelhead (Oncorhynchus mykiss). Environmental Science and Technology 46:6081-6087. \| Abstract	October 2012	ABSTRACT: The health condition of out-migrating juvenile salmonids can influence migration success. Physical damage, pathogenic infection, contaminant exposure, and immune system status can affect survival probability. The present study is part of a wider investigation of out-migration success in juvenile steelhead (Oncorhynchus mykiss) and focuses on the application of molecular profiling to assess sublethal effects of environmental stressors in field-collected fish. We used a suite of genes in O. mykiss to specifically assess responses that could be directly related to steelhead health condition during out-migration. These biomarkers were used on juvenile steelhead captured in the Snake River, a tributary of the Columbia River, in Washington, USA, and were applied on gill and anterior head kidney tissue to assess immune system responses, pathogen-defense (NRAMP, Mx, CXC), general stress (HSP70), metal-binding (metallothionein-A), and xenobiotic metabolism (Cyp1a1) utilizing quantitative polymerase chain reaction (PCR) technology. Upon capture, fish were ranked according to visual external physical conditions into good, fair, poor, and bad categories; gills and kidney tissues were then dissected and preserved for gene analyses. Transcription responses were tissue-specific for gill and anterior head kidney with less significant responses in gill tissue than in kidney. Significant differences between the condition ranks were attributed to NRAMP, MX, CXC, and Cyp1a1 responses. Gene profiling correlated gene expression with pathogen presence, and results indicated that gene profiling can be a useful tool for identifying specific pathogen types responsible for disease. Principal component analysis (PCA) further correlated these responses with specific health condition categories, strongly differentiating good, poor, and bad condition ranks. We conclude that molecular profiling is an informative and useful tool that could be applied to indicate and monitor numerous population-level parameters of management interest.
Congleton, J. L., W. J. LaVoie, C. B. Schreck, and L. E. Davis. 2000. Stress indices in migrating juvenile chinook salmon and steelhead of wild and hatchery origin before and after barge transportation. Transactions of the American Fisheries Society 129:946-961	September 2000
Colvin, M.E., J.T. Peterson, M. L. Kent, and C. B. Schreck. 2015. Occupancy modeling for improved accuracy and understanding of pathogen prevalence and dynamics. Plos ONE. 10(3): e0116605. doi:10.1371/journal.pone.0116605	March 2015
Colvin, M.E., J.T. Peterson, C. Sharpe, M.L.Kent, C.B. Schreck. 2018. Identifying optimal translocation policies given factors associated with adult spring-run Chinook Salmon translocation mortality. River Research and Applications 34:1158–1167	December 2018
Colvin, M.E. and J.T. Peterson. 2017. Preparing future fisheries professionals to make good decisions. Fisheries 41:473-474	July 2017
Columbo, L., A. D. Pickering, C. B. Schreck, and P. Belvedere. 1990. Stress-inducing factors and stress reaction in aquaculture. Pages 93-121. In: N. De Pauw and R. Billard (Editors). European Aquaculture Society Special Publication N. 12, Bredene, Belgium.	January 1990
Collis, K., D.D. Roby, K.W. Larson, L.J. Adrean, S.K. Nelson, A.F. Evans, N.J. Hostetter, D.S. Battaglia, D.E. Lyons, T.K. Marcella, and A. Patterson. 2012. Trends in Caspian tern nesting and diet in San Francisco Bay: Conservation implications for terns and salmonids. Waterbirds 35:25-34.	March 2012
Collis, K., D. D. Roby, D. P. Craig, S. Adamany, J. Y. Adkins, and D. E. Lyons. 2002. Colony size and diet composition of piscivorous waterbirds on the lower Columbia River: Implications for losses of juvenile salmonids to avian predation. Transactions of the American Fisheries Society 131: 537-550.	May 2002
Collis, K., D. D. Roby, D. P. Craig, B. A. Ryan, and R. D. Ledgerwood. 2001. Colonial waterbird predation on juvenile salmondis tagged with passive integrated transponders in the Columbia River estuary: vulnerability of different salmonid species, stocks, and rearing types. Transactions of the American Fisheries Society 130:385-396.	January 2001
Collis, K., D. D. Roby, C. W. Thompson, D. E. Lyons, and M. Tirhi. 2002. Barges as temporary breeding sites for Caspian terns: assessing potential sites for colony restoration. Wildlife Society Bulletin 30:1140-1149.	October 2002
Collar, S., D. D. Roby, and D. E. Lyons. Top-down and bottom-up interactions influence nesting success at the world's largest colony of Caspian terns (Hydroprogne caspia) in the Columbia River estuary. \| Abstract	April 2017	Our study investigated the influence of bottom-up and top-down drivers on the declining productivity at a once thriving breeding colony of Caspian terns (Hydroprogne caspia). Situated at the mouth of the Columbia River, Oregon, East Sand Island (ESI) is home to the largest Caspian tern breeding colony in the world. Since 2001 the decline in reproductive success of Caspian terns at ESI has been associated with a significant increase in average river discharge during May and June. The abundance of forage fish for terns in the estuary was inversely related to river discharge, which also apparently affected the reliance of tern nest predators on the tern colony as a food source, resulting in increased disturbance and decreased reproductive success at the tern colony. There was a significant increase in disturbance rates by bald eagles (Haliaeetus leucocephalus) during June for terns nesting at the ESI colony, and eagle disturbance rates were positively associated with May river discharge. We found a significant increase in kleptoparasitism rates of terns by glaucous-winged/western gulls (Larus glaucescens x L. occidentalis) since 2001, and a significant negative relationship between average annual rates of gull kleptoparasitism and Caspian tern nesting success at ESI. Although correlational, our results support the hypothesis that the decline in Caspian tern nesting success at this large estuarine colony was primarily driven by the interaction of bottom-up and top-down factors, influencing tern productivity through the food supply, and triggering potential predators to identify the tern breeding colony as an alternative source of prey.
Cole, E. K., M. D. Pope, and R. G. Anthony. 2004. Influence of road management on diurnal habitat use of Roosevelt elk. Northwest Science 78:313-321.	January 2005
Close, D. A., M. S. Fitzpatrick, C. M. Lorin, H. W. Li, and C. B. Schreck. 2003. Effects of intraperitoneally implanted radio transmitters on the swimming performance and physiology of Pacific lamprey. North American Journal of Fisheries Management. 23:1184-1192.	October 2003
Close, D. A., M. S. Fitspatrick and H. W. Li. 2002. The ecological and cultural importance of a species at risk of extinction, Pacific lamprey. Fisheries 27(7):19-25.	July 2002
Clements, S., and C. B. Schreck. 2004. Evidence that GABA mediates dopaminergic and serotonergic pathways associated with locomotor activity in juvenile chinook salmon (Oncorhynchus tshawytscha). Behavioral Neuroscience. 118:191-198.	October 2004
Clements, S., and C. B. Schreck. 2004. Central administration of corticotrophin-releasing hormone alters downstream movement in an artificial stream in juvenile chinook (Oncorhynchus tshawytscha). General and Comparative Endocrinology 137:1-8.	September 2004
Clements, S., and C. B. Schreck. 2001. The GABAa agonist muscimol enhances locomotor activity, but does not alter the behavioural effects of CRH in juvenile spring chinook salmon (ONCORHYNCHUS TSHAWYTSCHA). Fish Physiology and Biochemstry 24:41-48.	January 2001
Clements, S., F. L. Moore, and C. B. Schreck. 2003. Evidence that acute serotonergic activation potentiates the locomotor stimulating effects of corticotropin-releasing hormone in juvenile chinook salmon (Oncorhynchus tshawytscha). Hormones and Behavior 43:214-221.	January 2003
Clements, S., D. Jepsen, M. Karnowski, and C. B. Schreck. 2005. Optimization of an acoustic telemetry array for detecting transmitter-implanted fish. North American Journal of Fisheries Management. 25:429-436.	January 2005
Clemens, Benjamin J., Lance Wyss, Rebecca McCoun, Ian Courter, Lawrence Schwabe, Christopher Peery, Carl B. Schreck, and Margaret F. Docker. (2017). Behavioral flexibility in spawning migrations of Pacific lamprey Entosphenus tridentatus. Hydrobiologia. DOI 10.1007/sl0750-017-3096-4. \| Abstract \| Publisher Website	January 2017	To address questions about the spawning migrations of Pacific lamprey, Entosphenus tridentatus, we tested three hypotheses: 1) body size is not related to migration distance; 2) lamprey show a single, random migration behavior, moving in a continuous, upstream direction; and 3) there is no association between migration behavior and genetic differentiation. Adult Pacific lamprey were implanted with radio tags and non-lethal tissue samples were sampled for genetic analyses. The fish were released into the Willamette River Basin, Oregon (USA) during 2009 – 2010. A total of 372 (72.2%) fish were detected (3,044 total records), providing migration histories for analyses. Body size explained little (≤ 7.4%) of the variation in migration distances. We rejected the hypothesis of a single migration behavior: migratory behaviors varied considerably and fish often showed multi-directional movements. Cluster analysis identified nine statistically significant migration behaviors, defined by distance and direction traveled, net migration distance and season in which fish were tagged. Eight microsatellite loci were used to test the hypothesis that the migratory clusters constituted genetic population structure, yet there was no statistical evidence to support this hypothesis. We hypothesize that the different migration behaviors shown by Pacific lamprey are flexible responses to environmental and pheromonal cues.
Clemens, B.J., M.G. Mesa, R.J.Magie, D.A. Young, and C.B. Schreck. 2011. Pre-spawning migration of adult Pacific lamprey, Entosphenus tridentatus, in the Willamette River, Oregon, U.S.A. Environmental Biology of Fish. Now available on line at http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s10641-011-9910-3	January 2011
Clarke, C, R Baumbusch, T Garcia, KM Dugger, and JD Wiens. 2021. Taricha granulosa (Rough-Skinned Newt). Predation. Herpetological Review 52(3) 2021. \| Publisher Website	October 2021
Chen, S., Z. Fan, D.D. Roby, Y. Lu, C. Chen, Q. Huang, L. Cheng, and J. Zhu. 2015. Human harvest, climate change and their synergistic effects drove the Chinese Crested Tern to the brink of extinction. Global Ecology and Conservation 4:137-145. \| Abstract	July 2015	Synergistic effect refers to simultaneous actions of separate factors which have a greater total effect than the sum of the individual factor effects. However, there has been a limited knowledge on how synergistic effects occur and individual roles of different drivers are not often considered. Therefore, it becomes quite challenging to manage multiple threatening processes simultaneously in order to mitigate biodiversity loss. In this regard, our hypothesis is, if the traits actually play different roles in the synergistic interaction, conservation efforts could be made more effectively. To understand the synergistic effect and test our hypothesis, we examined the processes associated with the endangerment of critically endangered Chinese Crested Tern (Thalasseus bernsteini), whose total population number was estimated no more than 50. Through monitoring of breeding colonies and investigations into causative factors, combined with other data on human activities, we found that widespread human harvest of seabird eggs and increasing frequency of typhoons are the major factors that threatened the Chinese Crested Tern. Furthermore, 28 percent of breeding failures were due to the synergistic effects in which egg harvestinduced renestings suffered the higher frequent typhoons. In such combined interactions, the egg harvest has clearly served as a proximal factor for the population decline, and the superimposition of enhanced typhoon activity further accelerated the species toward imminent extinction. Our findings suggest that species endangerment, on one hand, should be treated as a synergistic process, while conservation efforts, on the other hand, should focus principally on combatting the threat that triggers synergistic effects.
Champine, V. M., Jones, M. S., Lischka, S., Vaske, J. J., & Niemiec, R. M. (2022). Understanding individual and diffusion behaviors related to native plant gardening. Journal of Environmental Psychology, 101798. https://doi.org/10.1016/j.jenvp.2022.101798 \| Abstract \| Publisher Website	March 2023	While studies have examined factors influencing individual pro-environmental behavior, less research has examined the drivers of “diffusion behaviors” that disseminate new information via social networks. We conducted a survey of single-family households (<i>n</i> = 337) using an expanded Integrated Model of Behavioral Prediction to investigate the social-psychological drivers of individual and diffusion behavioral intentions for native plant gardening. We also examined how intentions related to actual behavior and potential moderators of the intention-behavior relationship. We found that while individual behavior-specific knowledge and attitude predict both individual and diffusion intentions, behavior-specific personal norms and self-efficacy predicted diffusion intention, and behavior-specific personal norm influenced individual intention. Contrary to theory, diffusion intentions were influenced by a combination of behavior-specific and non-specific predictors. These results suggest that to motivate diffusion intention, outreach interventions may need to enhance diffusion-specific personal norm and self-efficacy beliefs, rather than just individual behavioral perceptions. Intentions predicted indicators of actual diffusion behavior, as measured through native plant voucher use by individuals and their friends and family. However, these indicators of behavior were not predicted directly by social-psychological variables. Diffusion-specific self-efficacy and subjective knowledge appear to moderate the relationship between diffusion intentions and successful diffusion behavior.
Champine V, Jones MS and Niemiec R. (2023). Encouraging social diffusion of pro-environmental behavior through online workshop-based interventions. Conservation Science & Practice, 5(10), e13016. https://doi.org/10.1111/csp2.13016 \| Abstract \| Download \| Publisher Website	September 2023	Motivating people to take environmentally friendly action, especially collective actions that promote greater social engagement, is important for addressing environmental issues like biodiversity loss. We conducted an online workshop-based field experiment to target social-psychological perceptions to motivate people to plant native plants and encourage others to do the same. To shift these perceptions, we added 13 microinterventions to half the workshops, including normative messaging, public commitment-making, and providing feedback on the impact of reaching out to others. We used a voucher system to track real-world behavior by partnering with native plant nurseries. Compared to an information-only control workshop, our intervention workshops initially increased certain social-psychological perceptions related to encouraging others to plant native plants. However, they did not change behaviors, or many perceptions, compared to control workshops. Additional exploratory analyses revealed differing patterns of behavioral perceptions 2 months after the workshops. Further research is needed that implements experimental methods and real-world measures of conservation behavior to evaluate the impacts of theory-based outreach tactics on collective actions.
Cecala, K.K, J. C. Maerz, J. R. Frisch, T. L. Gragson, J. Hepinstall-Cymerman, D. S. Leigh, C. R. Jackson, J. T. Peterson, and C. M. Pringle. 2018. Multiple drivers, scales, and interactions influence southern Appalachian stream salamander occupancy. Ecosphere 9: 1:19	January 2018
Castillo, G. C., H. W. Li, and P. A. Rossignol. 2000. Absence of overall feedback in a benthic estuarine community: A system potentially buffered from impacts of biological invasions. Estuaries (23):275-291.	January 2000
Castillo, G. C., H. W. Li, J. W. Chapman, and T. W. Miller. 2000. Predation on native and nonindigenous amphipod crustaceans by a native estuarine-dependent fish. Pages 177-185, in J. Pederson (editor). Marine bioinvasions. Sea Grant Program, Massachuesetts Institute of Technology, Cambridge MA.	January 2001
Carswell, B. L., J. T. Peterson, and C. A. Jennings. 2015. Tidal Management Affects Sub-adult Fish Assemblages in Impounded South Carolina Marshes. Wetlands Ecology and Management 23(6):1015-1031.	June 2015
Carey, K.C., M. Kent, C. B. Schreck, C. E. Couch, L. Whitman, and J. T. Peterson. Modeling the effects of stream temperature and human disturbance on prespawn mortality of spring Chinook salmon in an adaptive management framework. North American Journal of Fisheries Management \| Abstract	November 2024	Premature mortality of adult Chinook salmon (<i>Oncorhynchus tshawytscha</i>) is a major barrier to population recovery. Previous studies have attributed population declines to loss of habitat caused by water impoundments and other forms of development. The Willamette River Basin, OR typifies the problems faced by fishery managers in the Pacific Northwest. Although adult salmon are trapped and transported upstream of dams so they can access historic spawning grounds, annual rates of prespawn mortality (PSM) are high (often >40%) and may limit recovery of natural populations if not reduced. The purpose of this study was to identify and develop potential factors related to PSM into a conceptual model with the aim of incorporating future monitoring data to facilitate adaptive management of outplanting operations. We evaluated PSM in Fall Creek of the Willamette River Basin prior to transport facility improvements in summer and fall of 2010-2017 and post-improvement in 2020-2021. We estimated PSM and conducted exploratory analyses to identify possible non-transport sources of stress that may contribute to the observed high PSM rates. Candidate factors included long-term elevated temperature exposure, elevated temperature exposure below the trap, total number outplanted fish, and monthly human disturbance of outplanted fish. We then developed and fit three models each representing a hypothesis of the factor influencing PSM, incorporated them into a single decision model, and conducted sensitivity analyses. PSM averaged 66% over the study period and was greater for females. The top two management actions based on simulation results were to exclude human activity from Fall Creek in August and July, which reduced expected PSM rates to 37% and 38%. Sensitivity analyses indicated that the most influential decision model component was the choice of alternative model. We illustrate how annual monitoring data can be used to update the decision model and improve management, which can ultimately support recovery efforts.
Byrd, KB, I Woo, L Hall, E Pindilli, M Moritsch, A Good, S De La Cruz, MJ Davis, and G Nakai. 2024. Birdwatching preferences reveal synergies and tradeoffs among recreation, carbon, and fisheries ecosystem services in Pacific Northwest estuaries, USA. Ecosystem Services 69:101656. https://doi.org/10.1016/j.ecoser.2024.101656	September 2024
Buck, J. A., R. G. Anthony, C. A. Schuler, F. B. Isaacs, and D. E. Tillett. 2005. Changes in productivity and contaminants in bald eagles nesting along the lower Columbia River. Environmental Toxicology and Chemistry 24:1779-1792	April 2005
Buchanan, J. B., R. J. Gutierrez, R. G. Anthony, T. Cullinan, L. V. Diller, E. D. Forsman, and A. B. Franklin. 2007. A synopsis of suggested approaches to address potential competitive interactions between barred owls (Strix varia) and spotted owls (S. occidentalis). Biological Invasions 10:1-13.	September 2007
Brignon, W.R., M. M. Pike, L. O. E. Ebbesson, H. A. Schaller, J. T. Peterson, C. B. Schreck. Rearing Environment Influences Brain and Lens Development, Boldness, and Prey Acquisition Behavior of Bull Trout. Environmental Biology of Fishes.	April 2018
Brignon, W.B., J.T. Peterson, J. B. Dunham, H.A. Schaller, and C. B. Schreck. Evaluating Tradeoffs in Bull Trout Reintroduction Strategies Using Structured Decision Making. Canadian Journal of Fisheries and Aquatic Sciences	July 2017
Bradford, C. S., M. S. Fitzpatrick, and C. B. Schreck. 1992. Evidence for ultra-short-loop feedback in ACTH-induced interrenal steroidogenesis in coho salmon: Acute self-suppression of cortisol secretion in vitro. General and Comparative Endocrinology 87:292-299.	January 1992
Blaustein, A. R., J. B. Hayes, P. D. Hoffman, D. P. Chivers, J. M. Kiesecker, W. P. Leonard, A. Marco, D. H. Olson, J. K. Reaser, and R. G. Anthony. 1999. DNA repair and resistance to UV-B radiation in western spotted frogs. Ecological Applications 9:1100-1105.	November 1999
Blaustein, A. R., B. Han, B. Fasy, J. Romansic, E. A. Scheessele, R. G. Anthony, A. Marco, D. P. Chivers, L. K. Belden, J. M. Kesecker, T. Garcia, M. Lizana, and L. B. Katz. 2004. Variable breeding phenology affects the exposure of amphibian embryos to ultraviolet radiation and optical characteristics of natural waters protect amphibians for UV-B in the US Pacific Northwest: Comment. Ecology 85:1747-1754.	September 2004
Benjamin, J.R., McDonnell, Kevin, Dunham, J.B., Brignon, W.R., and Peterson, J.T., 2017, Structured decision making for conservation of bull trout (Salvelinus confluentus) in Long Creek, Klamath River Basin, south-central Oregon: U.S. Geological Survey Open-Report 2017–1075, 32 p., https://doi.org/10.3133/ofr20171075. \| Publisher Website	June 2017
Beckman, B. R., W. W. Dickhoff, W. S. Zaugg, C. Sharpe, S. Hirtzel, R. Schrock, D. A. Larson, R. D. Ewing, A. Palmisano, C. B. Schreck, and C. V. W. Mahnken. 1999. Growth smoltification and smolt-to-adult return of spring chinook salmon from hatcheries on the Deschutes River, Oregon. Transactions of the American Fisheries Society. 128:1125-1150.	November 1999
Beckman, B. R., D. A. Larsen, C. Sharpe, B. Lee-Pawlak, C. B. Schreck and W. W. Dickhoff. 2000. Physiological status of naturally reared juvenile spring chinook salmon in the Yakima River: Seasonal dynamics and changes associated with smolting. Transactions of the American Fisheries Society. 129:72-753.	January 2000
Baumbusch, RC, KM Dugger, and JD Wiens. 2023. Estimating fat content in barred owls (Strix varia) with predictive models developed from direct measures of proximate body composition. Conservation Physiology 11(1): coad069; doi:10.1093/conphys/coad069.	September 2023
Barton, B. A., and C. B. Schreck. 1987. Metabolic cost of acute physical stress in juvenile steelhead trout. Transactions American Fisheries Society 116:257-263.	January 1987
Barton, B. A., and C. B. Schreck. 1987. Influence of acclimation temperature on interrenal and carbohydrate stress responses in juvenile chinook salmon (Oncorhynchus tshawytscha). Aquaculture 62:299-310.	January 1987
Barton, B. A., G. S. Weiner, and C. B. Schreck. 1985. Effect of prior acid exposure on physiological responses of juvenile rainbow trout (Salmo gairdneri) to acute handling stress. Canadian Journal Fisheries and Aquatic Sciences 42:710-717.	January 1985
Barton, B. A., C. B. Schreck, and L. G. Fowler. 1988. Fasting and diet content affect stress-induced changes in plasma glucose and cortisol in juvenile chinook salmon. Progressive Fish-Culturist 50:16-22.	January 1988
Barton, B. A., C. B. Schreck, and L. D. Barton. 1987. Effects of chronic cortisol administration and daily acute stress on growth, physiological conditions, and stress response in juvenile rainbow trout. Disease Aquatic Organisms 2:173-185.	January 1987
Barton, B. A., C. B. Schreck, and L. A. Sigismondi. 1986. Multiple acute disturbances evoke cumulative physiological stress responses in juvenile chinook salmon. Transactions American Fisheries Society 115:245-251.	January 1986
Barton, B. A., C. B. Schreck, R. D. Ewing, A. R. Hemmingsen, and R. Patino. 1985. Changes in plasma cortisol during stress and smoltification in coho salmon, Oncorhynchus kisutch. General and Comparative Endocrinology 59:468-471.	January 1985
Barton, B. A., A. B. Rahn, G. Feist, H. Bollig, and C. B. Schreck. 1998. Physiological stress responses of the freshwater chondrostean paddlefish (Polyodon spathula) to acute physical disturbances. Comparative Biochemistry and Physiology Part A 120:355-363.	January 1998
Barbaree, B. A., S. K. Nelson, B. D. Dugger, D. D. Roby, H. R. Carter, D. L. Whitworth, and S. H. Newman. 2014. Nesting ecology of Marbled Murrelets at a remote mainland fjord in southeast Alaska. Condor: Ornithological Applications 116:173-184.	January 2014
Avella, M., G. Young, P. Prunet, and C. B. Schreck. 1990. Plasma prolactin and cortisol concentrations during salinity challenges of coho salmon (Oncorhynchus kisutch) at smolt and post-smolt stages. Aquaculture 91:359-372.	January 1990
Avella, M., C. B. Schreck, and P. Prunet. 1991. Plasma prolactin and cortisol concentrations of stressed coho salmon, Oncorhynchus kisutch, in freshwaster or saltwater. General and Comparative Endocrinology 81:21-27.	January 1991
Arnett, E. B., R. J. Anderson, C. Sokol, F. B. Isaacs, R. G. Anthony, and W. P. Erickson. 2001. Relationships between nesting bald eagles and selective logging in south-central Oregon. Wildlife Society Bulletin 29:769-778.	January 2001
Antolos, M., D. D. Roby, and K. Collis. 2004. Breeding ecology of Caspian terns at colonies on the Columbia Plateau. Northwest Science 78:303-312.	January 2005
Antolos, M., D. D. Roby, D. E. Lyons, S. K. Anderson, and K. Collis. 2006. Effects of nest density, location and timing on breeding success of Caspian terns. Waterbirds 29:465-472.	December 2006
Antolos, M., D. D. Roby, D. E. Lyons, K. Collis, A. F. Evans, M. Hawbecker, and B. A. Ryan. 2005. Caspian tern predation on juvenile salmonids in the Mid-Columbia River. Transactions of the American Fisheries Society 134:466-480.	April 2005
Anthony, R.G., J.A. Estes, M.A. Ricca, A.K. Miles, and E.D. Forsman. 2008. Bald Eagles and Sea Otters in the Aleutian Archipelago: Indirect Effects of Trophic Cascades. Ecology 89:2725-2735.	October 2008
Anthony, R.G. and M.J. Willis. 2009. Survival rates of female Greater Sage-grouse in autumn and winter in Southeastern Oregon. Journal of Wildlife Management 73:538-545.	January 2009
Anthony, R. G., and J. T. Faris. 2003. Observations of a live glaucous-winged gull chick in an active bald eagle nest. Wilson Bulletin 115: 81-483.	October 2003
Anthony, R. G., and C. J. Zabel. 2003. Synopsis and future perspective. In Zabel, C. J. and R. G. Anthony (eds. ). Mammal Community Dynamics: Management and Conservation in the Coniferous Forests of Western North America. Cambridge University Press, New York NY.	January 2003
Anthony, R. G., M. A. O'Connell, M. L. Pollock, and J. Hallett. 2003. Assoications of mammals with riparian ecosystems. In Zabel, C. J., and R. G. Anthony (eds. ). Mammal Mammal Community Dynamics: Management and Conservation in the Coniferous Forests of Western North America. Cambridge University Press, New York NY.	January 2003
Anthony, R. G., E. D. Forsman, A. B. Franklin, D. R. Anderson, K. P. Burnham, G. C. White, C. J. Schwarz, J. D. Nichols, J. E. Hines, G. S. Olson, S. H. Ackers, S. L. Andrews, B. L. Biswell, P. C. Carlson, L. V. Diller, K. M. Dugger, K. E. Fehring, T. L. Fleming, R. P. Gerhardt, S. A. Gremel, R. J. Gutierrez, P. J. Happe, D. R. Herter, J. M. Higley, R. B. Horn, L. L. Irwin, P. J. Loschl, J. A. Reid, S. G. Sovern. 2006. Status and trends in demography of northern spotted owls, 1985-2003. Wildlife Monographs 163:1-47.	September 2006
Anthony, R. G., A. K. Miles, M. A. Ricca, and J. A. Estes. 2007. Environmental contaminants in bald eagle eggs from the Aleutian Archipelago. Environmental Toxicology and Chemistry 26:1843-1855.	September 2007
Anthony, R. G. 2002. Rachael Carson's timeless legacy. Reflections: Newsletter of the Program for Ethics, Science, and Environment, Department of Philosophy, Oregon State University. 9(2):24-2.	January 2002
Anthony, R. G. 2001. Low productivity of bald eagles on Prince of Wales Island, southeast Alaska. Journal of Raptor Research 35:1-8.	January 2001
Anthony, J. A., D. D. Roby, and K. R. Turco. 2000. Lipid content and energy density of forage fishes from the northern Gulf of Alaska. Journal of Experimental Marine Biology and Ecology 248:53-78.	January 2000
Anthony, CR, LJ Foster, CA Hagen, and KM Dugger. 2021. Acute and lagged fitness consequences for a sagebrush obligate in a post mega-wildfire landscape. Ecology and Evolution 2021;00:1-12, DOI: 10.1002/ece3.8488	December 2021
Anthony, C.R., C.A. Hagen, K.M. Dugger, and R.D. Elmore. 2021. Greater Sage-Grouse nest bowls buffer microclimate in a post-megafire landscape although effects on nest survival are marginal. Ornithological Applications 123:1-13. https://doi.org/10.1093/ornithapp/duaa068.	February 2021
Anthony, C.R., C.A. Hagen, K.M. Dugger, and R.D. Elmore. 2020. The effects of fire on the thermal environment of sagebrush communities. Journal of Thermal Biology 89:102488, https://doi.org/10.1016/j.jtherbio.2019.102488">https://doi.org/10.1016/j.jtherbio.2019.102488	February 2020
Anon (C. B. Schreck). 1982. Columbia River crucial test for cooperative research. U. S. Fish and Wildlife Service, Fish and Wildlife News. Page 3.	January 1982
Anderson, S. K., D. D. Roby, D. E. Lyons, and K. Collis. 2007. Relationship of Caspian tern foraging ecology to nesting success in the Columbia River estuary, Oregon USA. Estuarine, Coastal, and Shelf Science 73:447-456.	March 2007
Anderson, S. K., D. D. Roby, D. E. Lyons, and K. Collis. 2005. Factors affecting chick provisioning by Caspian terns nesting in the Columbia River estuary. Waterbirds 28:95-105.	January 2005
Anderson, G.B., M.C. Freeman, B.J. Freeman, C.A. Straight, M.M Hagler, and J.T. Peterson. 2012. Dealing With Uncertainty When Assessing Fish Passage Through Culvert Road Crossings. Environmental Management 3: 462-477 \| Abstract	June 2012	Assessing the passage of aquatic organisms through culvert road crossings has become increasingly common in efforts to restore stream habitat. Several federal and state agencies and local stakeholders have adopted assessment approaches based on literature-derived criteria for culvert impassability. However, criteria differ and are typically specific to larger-bodied fishes. In an analysis to prioritize culverts for remediation to benefit imperiled, small-bodied fishes in the Upper Coosa River system in the southeastern United States, we assessed the sensitivity of prioritization to the use of differing but plausible criteria for culvert impassability. Using measurements at 256 road crossings, we assessed culvert impassability using four alternative criteria sets represented in Bayesian belief networks. Two criteria sets scored culverts as either passable or impassable based on alternative thresholds of culvert characteristics (outlet elevation, baseflow water velocity). Two additional criteria sets incorporated uncertainty concerning ability of small-bodied fishes to pass through culverts and estimated a probability of culvert impassability. To prioritize culverts for remediation, we combined estimated culvert impassability with culvert position in the stream network relative to other barriers to compute prospective gain in connected stream habitat for the target fish species. Although four culverts ranked highly for remediation regardless of which criteria were used to assess impassability, other culverts differed widely in priority depending on criteria. Our results emphasize the value of explicitly incorporating uncertainty into criteria underlying remediation decisions. Comparing outcomes among alternative, plausible criteria may also help to identify research most needed to narrow management uncertainty.
Anderson, D. R., K. P. Burnham, A. B. Franklin, R. J. Guti�rrez, E. D. Forsman, R. J. Anthony, G. C. White, and T. M. Shenk. 1999. A protocol for conflict resolution in analyzing empirical data related to natural resource controversies. Wildlife Society Bulletin 27:1050-1058.	September 1999
Anderson, C. D., D. D. Roby, and K. Collis. 2004. Foraging patterns of male and female double-crested cormorants nesting in the Columbia River estuary. Canadian Journal of Zoology 82:541-554.	September 2004
Anderson, C. D., D. D. Roby, and K. Collis. 2004. Conservation implications of the large colony of double-crested cormorants on East Sand Island, Columbia River estuary, Oregon USA. Waterbirds 27:155-160.	April 2004
Andersen, D. E., S. DeStefano, M. I. Goldstein, K. Titus, C. Crocker-Bedford, J. J. Keane, R. G. Anthony, and R. N. Rosenfield. 2005. Technical review of the status of northern goshawks in the western United States. Journal of Raptor Research 39:192-209.	September 2005
Andersen, D. E., S. DeStefano, M. I. Goldstein, K. Titus, C. Crocker-Bedford, J. J. Keane, R. G. Anthony, and R. N. Rosenfield. 2004. The status of Northern Goshawks in the western United States. The Wildlife Society, Technical Review 04-1, Bethesda MD, 24 p.	September 2004
Ainley, D.G., K.M. Dugger, M. La Mesa, G. Ballard, K.J. Barton, S. Jennings, B.J. Karl, A. Lescroël, P.O’B. Lyver, A. Schmidt, P. Wilson. 2018. Post-fledging survival of Adélie penguins at multiple colonies: Chicks raised on fish do well. Marine Ecology Progress Series 601:239-251. DOI: 10.3354/meps12687	August 2018
Adrean, L.J., D.D. Roby, D.E. Lyons, K. Collis, and A.F. Evans. 2012. Potential effects of management on Caspian tern (Hydroprogne caspia) predation on juvenile salmonids at a colony in San Francisco Bay, California. Transactions of the American Fisheries Society 141:1682-1696. (S) \| Abstract	October 2012	Abstract San Francisco Bay is a proposed relocation site for some of the Caspian terns (Hydroprogne caspia) currently nesting at the world’s largest colony for the species in the Columbia River estuary and consuming salmonids listed under the U.S. Endangered Species Act (ESA). However, several runs of salmonids (Oncorhynchus spp.) listed under the ESA occur in San Francisco Bay and managers are concerned that increased Caspian tern predation may pose a threat to the recovery of these salmon. We used a bioenergetics modeling approach, employing estimates of tern energy requirements and proportions of energy supplied by various prey types, to estimate consumption of juvenile salmonids by Caspian terns nesting on Brooks Island in central San Francisco Bay during 2008 and 2009. Estimated salmonid consumption was ca. 205,000 smolts (95% CI: 175,000–245,000 smolts) in 2008 and ca. 167,000 smolts (95% CI: 144,000–191,000 smolts) in 2009. The inter-annual difference in smolt consumption was due to the smaller size of the tern colony and lower nesting success in 2009. Estimated predation rates on ESA-listed Central Valley spring-run Chinook (0.1%) were lower than those on unlisted fall-run Chinook (1.0%). Continuation of the current downward trend in the number of Caspian terns nesting on Brooks Island, and resulting reductions in salmonid predation, would not be sufficient to reverse salmonid declines in San Francisco Bay. The proposed enhancement of the Brooks Island Caspian tern colony to 3,000 individuals would at most cause declines in annual population growth rates (λ) of 0.28% for fall-run Chinook and 0.02% for threatened spring-run Chinook, assuming mortality from tern predation is 100% additive.
Adkins, J.Y., D.E. Lyons, P.J. Loschl, D.D. Roby, K. Collis, A.F. Evans, and N.J. Hostetter. 2014. Demographics of piscivorous colonial waterbirds and management implications for ESA-listed salmonids on the Columbia Plateau. Northwest Science 88:344-359. \| Abstract	January 2015	We investigated colony size, productivity, and limiting factors for five piscivorous waterbird species nesting at 18 locations on the Columbia Plateau (Washington U.S.A.) during 2004 – 2010 with emphasis on species with a history of salmonid (Oncorhynchus spp.) depredation by conducting aircraft-, boat-, and road-based surveys and through colony-based observations. Numbers of nesting Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) were stable at about 700 – 1,000 breeding pairs at five colonies and about 1,200 – 1,500 breeding pairs at four colonies, respectively. Numbers of American white pelicans (Pelecanus erythrorhynchos) increased at Badger Island, the sole breeding colony for the species on the Columbia Plateau, from about 900 individuals in 2007 to over 2,000 individuals in 2010. Overall numbers of breeding California gulls (Larus californicus) and ring-billed gulls (L. delawarensis) declined during the study, mostly because of the abandonment of a large colony in the mid-Columbia River. Three gull colonies below the confluence of the Snake and Columbia rivers increased substantially, however. Factors that may limit colony size and productivity for piscivorous waterbirds nesting on the Columbia Plateau included availability of suitable nesting habitat, interspecific competition for nest sites, predation, gull kleptoparasitism, food availability, and human disturbance. Based on observed population trends alone, there is little reason to project increased impacts to juvenile salmonid survival from tern and cormorant populations. Additional monitoring and evaluation may be warranted to assess future impacts of the growing Badger Island American white pelican colony and those gull colonies located near mainstem dams or associated with Caspian tern colonies where kleptoparasitism is common.
Adkins, J.Y., D.D. Roby, D.E. Lyons, K.N. Courtot, K. Collis, H.R. Carter, W.D. Shuford, P.J. Capitolo. In press. Estimated Population Size, Trends, and Limiting Factors for the Double-crested Cormorant in Western North America. Journal of Wildlife Management 78:000-000.	December 2014
Adams, N. S., W. J. Spearman, C. V. Burger, K. P. Currens, C. B. Schreck, and H. W. Li. 1994. Variation in mitochondrial DNA and allozymes discriminates early and late forms of chinook salmon (Oncorhynchus tshawytscha) in the Kenai and Kasilof rivers, Alaska. Canadian Journal of Fish Aquatic Science 51:172-181.	January 1994
Ackers, S.H., R.J. Davis, K.A. Olsen, and K.M. Dugger. 2014. The evolution of mapping habitat for northern spotted owls (Strix occidentalis caurina): a comparison of photo-interpreted, Landsat, and LiDAR based habitat maps. Remote Sensing of Environment 156:361-373.	October 2014
Ackerman, L. K., A. R. Schwindt, S. L. Massey Simonich, D. C. Koch, T. F. Blett, C. B. Schreck, M. L. Kent and D. H. Landers. 2008. Atmospherically Deposited PBDEs, Pesticides, PCBs and PAHs in Western US National Park Fish: Concentrations and Consumption Guidelines. Environmental Science and TEchnology 42:2334-2341.	January 2008
A.B. Franklin, K.M. Dugger, D.B. Lesmeister, R.J. Davis, J.D. Wiens, G.C. White, J.D. Nichols, J.E. Hines, C.B. Yackulic, C.J. Schwarz, S.H. Ackers, L.S. Andrews, L.L. Bailey, R. Bown, J. Burgher, K.P. Burnham, P.C. Carlson, T. Chestnut, M.M. Conner, K.E. Dilione, E.D. Forsman, E.M. Glenn, S.A. Gremel, K.A. Hamm, D.R. Herter, J.M. Higley, Rob B. Horn, J.M. Jenkins, W.L. Kendall, D.W. Lamphear, C. McCafferty, T.L. McDonald, J.A. Reid, J.T. Rockweit, D.C. Simon, S.G. Sovern, J.K. Swingle, and H. Wise. 2021. Range-wide declines of Northern Spotted Owls populations in the Pacific Northwest: a meta-analysis. Biological Conservation Volume 259, DOI: 10.1016/j.biocon.2021.109168.	May 2021

Presentations

Presentations	Presentation Date
van de Wetering, S., B. Clemens and C.B. Schreck. 2008. Building a Conceptual Mdel to Describe the Effects of Stream Temperatures on Pacific Lamprey, Entophosphenus tridentate Distribution and Population Success in Western Oregon. American Fisheries Society Western Division Annual Meeting, Portland OR.	May 2008
Zydlewski, J., S.P. Clements, M.D. Karnowski, C.B. Schreck, and R. Warren. 2003. Movements of coastal cutthroat trout in the lower Columbia River: tributary, main-stem and estuary use.	January 2003
Zamon, J., E. Phillips, D.D. Roby, D.E. Lyons, K. Collis, and J. Adams. 2015. Food web links between seabirds and pelagic schooling fishes in the estuary, plume, and nearshore marine habitats of the Columbia River. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, CA, 20 February.	February 2015	This presentation investigates linkages between piscivorous seabirds and their prey base in the Columbia River estuary and plume, an enormously productive nearshore marine ecosystem.
Yada, T., T. Azuma, S. Hyodo, C.B. Schreck and T. Hirano. 2005. Differential expression of three corticosteroid receptor genes in trout immune system in response to acute stress. 15th International Congress of Comparative Endocrinology, Boston MA.	September 2005
Yada, T., T. Azuma, C.B. Schreck, T. Hirano, and E.G. Grau. 2002. Stimulatory effects of prolactin on fish immunity. Conference of European Comparative Endocrinology, Germany.	January 2002
Yada, T., S. Hyodo, C.B. Schreck. September 7, 2004. Interaction between growth hormone and cortisol in fish immune system. Presentation at the 5th International Symposium on Fish Endocrinology on the Campus of the University Jaume I of Castellon in Spain.	September 2004
Wyss, L.A., Schultz, L.D., Clemens, B.J., Sheoships, G.T., Schreck, C.B. Monitoring the Relative Abundance and Distribution of Pacific Lamprey (Entosphenus tridentatus) in the Willamette River Basin. Willamette Fisheries Science Review, Corvallis Oregon. February 5-7, 2013.	February 2013	Our distributional sampling and habitat assessments may be used to develop and refine a long-term monitoring program for Pacific lamprey, but further research of landscape-scale factors is needed to help inform recovery and conservation efforts for Pacific lamprey.
Wyss, L.A., Schultz, L.D., Clemens, B.J., Sheoships, G.T., Schreck, C.B. Monitoring Adult Spawning Activity of Pacific Lamprey (Entosphenus tridentatus) in Three Willamette River Tributaries. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	The goal of our study is to provide information that will facilitate recovery and conservation of Pacific lamprey in the Willamette Basin. We hypothesize that geographic location of basins and the delivery and retention of gravels within a basin are major contributors to differences in spawning activity, but more research of these landscape scale conditions is needed.
Wyss, L.A., Clemens, B.J., Schultz, L.D., Sheoships, G.T., Schreck, C.B. Freshwater Migration and Spawning Activities of Adult Pacific Lamprey in the Willamette River Basin. Annual Meeting of the Western Division American Fisheries Society, Boise, ID. April 15-18, 2013	April 2013	Our research provided insight for this life history stage, but more effort is needed to address basin-wide access issues, monitor spawning activity, and analyze landscape-scale habitat attributes to aid recovery and conservation.
Wright, S.K., D.D. Roby, and R.G. Anthony. 2003. A major new roost site for endangered California brown pelicans in the Columbia River estuary. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Wright, S.K., D.D. Roby, and R.G. Anthony. 2002. California brown pelicans nesting in the Pacific Northwest?: Potential for a major northward expansion in breeding range. Annual meeting of the Pacfic Seabird Group, Santa Barbara CA.	December 2002
Wright, S.K., D.D. Roby, and R. Anthony. 2003. A major new roost site for endangered California brown pelicans in the Columbia River estuary. Annual meeting of the Pacific Seabird Group.	January 2003
Wright, S.K., D.D. Roby , and R.G. Anthony. California brown pelicans nesting in the Pacific Northwest?: Potential for a major northward expansion in breeding range. Oregon Chapter of the Wildlife Society Annual Meeting, 13-15 February, Gleneden Beach, OR. (Poster presentation).	February 2002
Wright, S. and D.D. Roby. Roosting ecology of California brown pelicans on East Sand Island, Oregon: Effects of human disturbance. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 22 January 2004.	January 2004
Workman, T. B. Clemens, R. McCoun, S. Duery and C.B. Schreck. Unraveling migratory behavior and habitat use in adult Pacific lamprey of the Willamette Basin. Annual meeting of the Oregon Chapter of the American Fisheries Society, February 22-25, Bend OR.	February 2011
Wohner, P., R. Thurow, and J.T. Peterson.. 2024. Combining linear spatial capture-recapture modeling with Bull Trout telemetry data. 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	Bull Trout Salvelinus confluentus are a threatened native Pacific Northwest charr with an affinity for cold water (<16˚C) that may become increasingly threatened by climate change. Combining historical Bull Trout telemetry data with new statistical methodology may be advantageous for understanding migration patterns under a changing climate.
Wohner, P., A. Duarte, and J.T. Peterson.. 2024. Getting back to the basics: Evaluating sample designs using variance partitioning . 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	We conducted a simulation study to determine the optimal number of spatial and temporal replications for rare species in the San Francisco Estuary that are spatially distributed according to constantly changing flows, salinity, and food resources. To determine optimal designs with the lowest variance, we estimated total variance for alternative allocations of spatial and temporal replicates.
Wohner, P., A. Duarte, and J.T. Peterson.. 2024. An integrated analysis for estimating juvenile survival, growth, and movement. 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	We developed an integrated population model that links two different and often collected types of anadromous fish monitoring data: spawning ground surveys and rotary screw trap juvenile catch data. The integrated model accounts for incomplete detection and uses the two sources of data to estimate juvenile demographic parameters in a multistate framework.
Wohner, P., A. Duarte, and J. Peterson. 2021. Optimizing Spring Flows for Juvenile Chinook Salmon Survival Through the San Joaquin River Delta. National Stream Restoration Conference, August 22-24, Baltimore, MD.	August 2021	We developed a juvenile salmon routing and survival model by conducting a meta-analysis of published Chinook salmon smolt survival and migration estimates. Results of the 2008-2015 meta-analysis confirmed survival in the south Delta is related to San Joaquin River flow and temperature. We then used the model to estimate optimal flows during juvenile outmigration from February to May.
Wisniewski, J.M., J.T. Peterson, S.Abbott, C.P. Shea, and C. Stringfellow. 2011. Known knowns and known unknowns: what do we really know? Freshwater Mollusk Conservation Society 7th Biennial Symposium, April 11-15, Louisville KY	April 2011
Winquist, S., R. Orben, A. Schmidt, G. Ballard, A. Lescroël, and K. Dugger. 2025. Hard Work for Shallow Gains: Energetic Costs of Foraging Beneath Antarctic Sea Ice. Waterbird Society and Pacific Seabird Group Joint Meeting, January 6-9, 2025, Costa Rica.	January 2025	Instances of penguins foraging in shallow water under ice, while rare (16% of foraging dives), exhibited prey capture rates almost three times higher than non-ice dives. These ice-associated dives were shallower and associated with increased buoyancy from swimming near the surface, potentially requiring more effort by penguins to remain submerged.
Winquist, S., R. Orben, A. Schmidt, G. Ballard, A. Lescroël, M. Elrod, J.B. Thiebot, M. Hinajosa, J. Wenigmann, K. Volz, and K. Dugger. 2023. Seeing underwater: what we have learned from 185 hours of Adélie penguin foraging video paired with accelerometry data. 50th Annual Meeting of the Pacific Seabird Group. February 15-17, 2023,La Jolla, CA.	February 2023	We deployed small video cameras on Adélie penguins (<i>Pygoscelis adeliae</i>) in addition to devices that recorded time, depth, temperature, spatial orientation, and GPS location on breeding foraging penguins at Cape Crozier, Antarctica. We captured 185 hours of foraging video and observed 8,844 individual prey capture events with 3,098 prey identified from these captures. Krill (n=2,574) was the most frequently identified prey type, followed by fish (n=229), and squid (n=60).
Winquist, S, R Orben, A Schmidt, G Ballard, A Lescroël, and KM Dugger. 2023. Videos indicate that Adélie penguins catch more prey under ice, does acceleration data tell a different story? 11th International Penguin Congress, 4-9 September, 2023, Vina del Mar, Chile.	September 2023	We deployed video-loggers and motion sensing devices on chick-rearing adults at Cape Crozier, Antarctica and captured video footage from 39 foraging trips across two seasons. Birds spent 61% of video periods actively diving, and krill was the predominant prey type followed by fish, and squid.
Wilson, D.J., P.O'B. Lyver, T.C. Greene, A.L. Whitehead, K.M. Dugger, B.J. Karl, J.R.F. Barringer, and D.G. Ainley. 2015. An assessment of South Polar Skua numbers in the Ross Sea: predictions based on Adelie penguin colony size. New Zealand Ecological Society, Christchurch, NZ, 16-19 November.	November 2015	We estimated the density of South Polar Skua breeding in association with penguins at 3 colonies on Ross Island. The relationship between penguin breeding population size and skua density was strong and allowed us to estimate the number of skuas currently breeding in association with penguins in the western Ross Sea.
Wiens, JD, KM Dugger, M Higley, DB Lesmeister, AB Franklin, KA Hamm, RR Bown. 2023. Removal of Invading Barred Owls Halts Long-term Population Declines of Northern Spotted Owls. AOS and SCO-SOC Joint Conference, 8-12 August, 2023, London, Ontario, Canada.	August 2023	We used a large-scale before-after-control-impact removal experiment to investigate the effects of an invasive competitor, the Barred Owl, on the population dynamics of a threatened, iconic old-forest native species, the Northern Spotted Owl. Removal of Barred Owls had a strong, positive effect on survival of sympatric Spotted Owls, which halted long-term population declines of Spotted Owls. After removals, the estimated mean annual rate of population change for Spotted Owls stabilized in areas
Wiens, JD, KM Dugger, M Higley, DB Lesmeister, AB Franklin, KA Hamm, RR Bown. 2022. Removal of Invading Barred Owls Halts Long-term Population Declines of Northern Spotted Owls. The Wildlife Society's 29th Annual Conference, November 6-10, 2022, Spokane, WA	November 2022	We used a large-scale before-after-control-impact removal experiment to investigate the effects of an invasive competitor, the Barred Owl, on the population dynamics of a threatened, iconic old-forest native species, the Northern Spotted Owl. Removal of Barred Owls had a strong, positive effect on survival of sympatric Spotted Owls, which halted long-term population declines of Spotted Owls. After removals, the estimated mean annual rate of population change for Spotted Owls stabilized in areas
Wiens, JD, KM Dugger, JM Higley, DB Lesmeister, AB Franklin, KA Hamm, RR Bown, KE Dilione, and DC Simon. 2022. Barred Owl Removal Halts Long-term Population Declines of the Northern Spotted Owl. Oregon Chapter of The Wildlife Society 2022 Annual Conference, Newport, OR, Feb 23-25, 2022.	February 2022	We used a large-scale before-after-control-impact removal experiment to investigate the effects of an invasive competitor, the Barred Owl (<i>Strix varia</i>), on the population dynamics of a threatened, iconic old-forest native species, the Northern Spotted Owl (<i>S. occidentalis caurina</i>). Removal of Barred Owls had a strong, positive effect on survival of sympatric Spotted Owls, which arrested long-term population declines of Spotted Owls. After removals, the estimated mean annual rate o
Wiens, JD, KM Dugger, JM Higley, DB Lesmeister, AB Franklin, KA Hamm, RR Bown, KE Dilione, and DC Simon. 2021. Barred Owl Removal Halts Long-term Population Declines of the Northern Spotted Owl. 2021 Raptor Research Foundation joint Conference with the Neotropical Raptor Network, October 8-14, 2021, Boise, ID, USA.	October 2021	We used a large-scale before-after-control-impact removal experiment to investigate the effects of an invasive competitor, the Barred Owl (<i>Strix varia</i>), on the population dynamics of a threatened, iconic old-forest native species, the Northern Spotted Owl (<i>S. occidentalis caurina</i>). Removal of Barred Owls had a strong, positive effect on survival of sympatric Spotted Owls, which arrested long-term population declines of Spotted Owls. After removals, the estimated mean annual rate o
Wiens, J.D., R.G. Anthony, and E.D. Forsman. Towards a Deeper Understanding of the Competitive Relationship Between Northern Spotted Owls and Barred Owls. 6th Annual Symposium on Research Advances in Fisheries, Wildlife, and Ecology, Corvallis OR, 11 November.	November 2008
Wiens, J.D, K.M. Dugger, D.L. Lesmeister, K.E. Dilione, D.C. Simon, and R. Bown. 2018. Status of Spotted Owls, Barred Owls, and Removal Experiments in Oregon and Washington. Special symposium at the annual meeting of the Western Section of The Wildlife Society, Santa Rosa, CA, Feb 5-9, 2018.	February 2018	We report initial results from a before-after-control-impact (BACI) experiment implemented on three study areas in Oregon and Washington to determine the demographic response of northern spotted owls to the removal of barred owls. Based on the first 3 years of removals (5 planned), preliminary results suggest that recolonization rates of post-removal landscapes by each owl species can vary considerably among and within study areas depending on the regional availability of surplus individuals (
Wiens, J.D, K.M. Dugger, D.L. Lesmeister, K.E. Dilione, D.C. Simon, and R. Bown. 2018. Status of Spotted Owls, Barred Owls, and Removal Experiments in Oregon and Washington. Joint annual meeting of the Oregon Chapter of The Wildlife Society, the Washington Chapter of The Wildlife Society, the Society for Northwestern Vertebrate Ecology, and the Northwestern Partners in Amphibians and Reptile Conservation. Portland, OR, Feb 13-16, 2018.	February 2018	We report initial results from a before-after-control-impact (BACI) experiment implemented on three study areas in Oregon and Washington to determine the demographic response of northern spotted owls to the removal of barred owls. Based on the first 3 years of removals (5 planned), preliminary results suggest that recolonization rates of post-removal landscapes by each owl species can vary considerably among and within study areas depending on the regional availability of surplus individuals (
Whitney, L.W., and R.G. Anthony. February 2001. Ecological relationships between Columbian white-tailed deer and black-tailed deer in southwestern Oregon. Joint annual meeting of the Oregon chapter of The Wildlife Society and American Fisheries Society.	February 2001
Whitney, L.W., R.G. Anthony, and D.H. Jackson. September 2000. Ecological relationships between Columbian white-tailed deer and black-tailed deer in southwest Oregon. The Wildlife Society 7th Annual Conference.	September 2000
Whitlock, S., L. Schultz, C. Schreck. (2015). Predicting larval lamprey distribution and abundance: importance of abundance- and habitat-related detection heterogeneity. American Fisheries Society 145th Annual Meeting. Portland, OR, August 16-20, 2015.	August 2015	In this investigation, we constructed hierarchical models linking larval Pacific lamprey capture probability, occupancy, and abundance to habitat characteristics. Model selection using deviance information criterion (DIC) revealed that lamprey catchability was negatively associated with an index of fine sediment volume, and that stream gradient was an important predictor of lamprey occupancy and abundance.
Whitlock, S., J. Womble, C. Gabriel, and J. Peterson.2017. Modeling pinniped abundance and distribution using haulout counts and in-water sightings. 2017 Ecological Society of America Annual Meeting, August 6-11, Portland Oregon.	August 2017	We developed a probabilistic model that links haulout counts and in-water sightings of pinnipeds and produces estimates of availability (i.e., probability of being found on land), abundance, and spatial distribution of pinnipeds through time. We examined the performance of the model by using it to estimate the abundance and distribution of harbor seals in Glacier Bay National Park and Preserve with a data set consisting of aerial photographic surveys of haulouts and in-water sightings of pinnip
Whitlock, S., C. Baker, and J.T. Peterson. 2019. The value of model-based estimators for enumerating fish at passage barriers: an example involving Pacific lamprey at Willamette Falls, Oregon. Annual Meeting of the American Fisheries Society, Reno NV.	September 2019	As a case study, we describe a model for estimating the abundance and upstream passage of Pacific lamprey (Entosphenus tridentatus) at Willamette Falls, OR, a heavily developed natural barrier with a fish passage facility. Our model used fish sampling data and mark-resight information from tag detections to estimate daily passage probability and the temporal distribution of arrivals below the barrier.
White, J., R. Wallick, L. Stratton Garvin, J. Peterson, and T. Kock. 2021. Assessment of Habitat Availability for Juvenile Chinook Salmon in the Willamette River. Oregon Chapter of the American Fisheries Society Annual Meeting, March 3-5.	March 2021	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
White, J., R. Wallick, J. Peterson, R. Piaskowski, J. MacDonald, and B. Overstreet. 2019. Fish and flows: Quantifying the effects of flow management on rearing habitat for spring Chinook and winter steelhead in Willamette River using high-resolution hydraulic models. 55th Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, Bend, OR.	March 2019	To inform flow management decisions, this study quantifies relationships between flow and rearing habitat availability for ESA-listed spring Chinook salmon and winter steelhead along 200 km of the Willamette, North Santiam and McKenzie Rivers using high resolution (<5m2) hydraulic models. Preliminary results show that relationships between streamflow and habitat availability are spatially variable, reflecting diverse geomorphic conditions and resulting patterns of depth and velocity. Despite lo
What goes around, comes around: Understanding life history for restoration ecology. USEPA, Corvallis, OR.	October 2001
Webb, M.A.H., G.W. Feist, J.P. Van Eenennaam, R. Pati�o, M.S. Fitzpatrick, C.B. Schreck, and S. Doroshov. January 2001. Ovarian steroidogenesis and the effects of steroid hormones on oocyte maturation in vitro in white sturgeon (ACIPENSER TRANSMONANTUS). 4th International Symposium on Sturgeon.	January 2001
Webb, M.A.H., G.W. Feist, J.P. Van Eenennaam, M.S. Fitzpatrick, C.B. Schreck, and S.I. Doroshov. January 2000. Maturation-inducing steroids in white sturegon (Acipenser transmontanus). Western Regional Conference on Comparative Endocrinology.	January 2000
Webb, M.A.H., G.W. Feist, E.P. Foster, C.B. Schreck, and M.S. Fitzpatrick. January 2001. Classification of stage of maturity of white sturgeon (ACIPENSER TRANSMONANTUS) using blood plasma indicators. Western Regional Conference on Comparative Endocrinology.	January 2001
Webb, M.A.H., G.W. Feist, E.P. Foster, C.B. Schreck, and M.S. Fitzpatrick. January 2001. Classification of sex and stage of maturity of white sturgeon (ACIPENSER TRANSMONANTUS) using blood plasma and mucus indicators. 4th International Symposium on Sturgeon.	January 2001
Webb, M.A.H., C. Anthony, and C.B. Schreck. 2003. The oversize catch and release sport fishery for white sturgeon below Bonneville Dam: what we know and don't know. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Wallace, ZP, PL Kennedy, JR Squires, R Oakleaf, KM Dugger, LE Olson. 2013. TERRITORY OCCUPANCY OF FERRUGINOUS HAWKS RELATIVE TO ENERGY DEVELOPMENT, PREY, VEGETATION, AND NEST SECURITY. Annual Meeting of the Wyoming chapter of The Wildlife Society, Rock Springs, WY, October 29-31, 2013.	October 2013	The results of this work suggest that in this study area, the density and extent of energy development is not a strong predictor of occupancy rates for ferruginous hawks.
Wallace, ZP, PL Kennedy, JR Squires, R Oakleaf, KM Dugger, LE Olson. 2013. TERRITORY OCCUPANCY OF FERRUGINOUS HAWKS RELATIVE TO ENERGY DEVELOPMENT, PREY, VEGETATION, AND NEST SECURITY. Annual Meeting of The Wildlife Society, Milwaukee, WI, October 5-9, 2013.	October 2013	The results of this work suggest that in this study area, the density and extent of energy development is not a strong predictor of occupancy rates for ferruginous hawks.
W.M. Contreras-Sanchez, C.B. Schreck, G.W. Feist, U. Hernandez-Vidal, G. Morales-Lara, M.A. Contreras-Garcia, and A. McDonald-Vera. 2002. Bioencapsulation of 17 b-Estradiol and Trenbolone acetate in artemia nauplii for sex-inversion purposes. Aquamar International, Cuba.	January 2002
Volz, K, S Winquist, K Stoner, M Elrod, A Schmidt, JB Thiebot, V Morandini, G Ballard, A Varsani, KM Dugger, and R Orben. 2022. What's on the menu? Using video loggers to establish a prey image library for Adelie penguins at Cape Crozier, Antarctica. 49th Annual Meeting of the Pacific Seabird Group (Virtual). February 23-25, 2022.	February 2022	We manually reviewed videos to identify individual prey capture events and prey types when possible as well as develop a prey type image reference library to expedite prey type determination from video data. Preliminary results show that the diet of Adélie penguins consists primarily of krill, fish, and squid. We also identified amphipods, pteropods, and jellies as occasional prey, indicating a greater prey item diversity than previously understood.
Van de Wetering, S., B. Clemens, C. Schreck, and R. Ewing. 2007. Oregon coastal riparian restoration, stream temperatures, and larval lamprey ecology: an examination of responses by larval pacific lamprey, to a range of experimental temperature regimes and potential consequences to lamprey ecology. 43rd Annual Meeting of the Oregon Chapter of the American Fisheries Society, Eugene, OR.	September 2007
Unrein, J.R., R. Chitwood, C.B. Schreck, J. Morris and J. Peers. Larval Pacific lamprey (Entrosphenus tridentata) exposed to Port of Portland sediment: method development for monitoring behavior, individual growth and survival and preliminary results. Annual meeting of the Oregon Chapter of the American Fisheries Society, February 22-25, Bend OR.	February 2011
Unrein, J.R., Chitwood, R., Noakes, D.L.G., and Schreck, C.B. Born to Behave Wild? Utilizing Data on Growth, Development and Behavior of Wild Spring Chinook to Develop Rearing Strategies to Produce Artificially Reared Fish with a Wild Phenotype. Oregon American Fisheries Society Annual Meeting, Eugene Oregon, Feb 29-March 1.	February 2012
Unrein, J., E. Billman, R. Chitwood, D. Noakes, and C. Schreck. 2014. Early Self-Soting Behavior May Predict Juvenile Life History Tactics in Chinook Salmon: Evidence from Growth, Morphology and Behavior. 19th Biennial Ecological and Evolutionary Ethology of Fishes Meeting. Corvallis, Oregon.	June 2014	.
Unrein, J., Billman, E., Chitwood, C., Sharpe, C., Couture, R., O'Neil, J., Hakanson, O., Noakes, D., Schreck, C. Assessing downstream movement behavior of spring chinook salmon reared under various experimental and conventional conditions. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	We are currently assessing the potential to use alternative rearing and husbandry techniques to raise juveniles from hatchery-origin Chinook salmon (Oncorhynchus tshawytscha) broodstock that more closely emulate their naturally-reared counterparts.
Unrein, J. and C. Schreck. (2015). Early Self-Sorting Behavior in Chinook Salmon (Oncorhynchus tshawytscha) Is Correlated with Subsequent Variation in Growth, Behavior and Morphology. American Fisheries Socieity 145th Annual Meeting. Portland, Oregon, August 16-20, 2015.	August 2015	Juvenile Chinook salmon (Oncorhynchus tshawytscha) exhibit an array of life history tactics in Oregon’s Willamette River Basin, yet we do not know to what extent it is driven by phenotypic plasticity or whether it is predetermined and how the rearing environment may affect phenotype expression. Hatchery-origin fish sort into distinct surface- and bottom- oriented groups at exogenous feeding and this separation persisted for each group.
Trushel, B.E., J.T. Peterson, and C.A. Jennings. 2012. Influence of multi-scale factors on fish structural indices in freshwater impoundments: Implications for successful fisheries management. American Fisheries Society Southern Division Annual Meeting, Biloxi, Mississippi, 26-29 January 2012. (Oral Presentation)	January 2012
Trushel, B.E., J.T. Peterson, and C.A. Jennings. 2012. Influence of multi-scale factors on fish structural indices in freshwater impoundments: Implications for successful fisheries management. World Fisheries Congress, Edinburgh, Scotland, United Kingdom. May 7-11. (Poster Presentation)	May 2012
Trushel, B., J.T. Peterson, and C.A. Jennings. 2012. Influence of Multi-Scale Factors on Fish Structural Indices in Freshwater Impoundments: Implications for Successful Fisheries Management. 142nd Annual Meeting of the American Fisheries Society, August 19-23, St Paul MN.	August 2012
Trushel, B., C.A. Jennings, and J.T. Peterson. 2012. Influence of Multi-Scale Factors on Fish Structural Indices in Freshwater Impoundments: Implications for Successful Fisheries Management. Annual Meeting of the Southern Division of the American Fisheries Society, January 28-29, Biloxi, MS.	January 2012
Trushel, B., C.A. Jennings, and J.T. Peterson. 2012. Influence of Multi-Scale Factors on Fish Structural Indices in Freshwater Impoundments: Implications for Successful Fisheries Management. 20th Annual Meeting of the Georgia Chapter of the American Fisheries Society, February 7-9, Perry, GA.	February 2012
Truelove, N., S. Clements, C.B. Schreck, G. Zydlewski, and D. Campton. February 19, 2004. Effects of acute and chronic stressors on the migratory behavior of juvenile hatchery steelhead (Oncorhynchus mykiss) in Abernathy Creek, Washington. Presentation at the Annual Meeting of the Oregon Chapter of the American Fishery Society.	February 2004
Truelove, N., C.B. Schreck, and A. Baptista. 2005. Modeling Juvenile salmonid migration patterns for the Columbia River estuary. Oregon Chapter of the American Fisheries Society 41st annual meeting, Corvallis OR.	February 2005
Torgersen, C.E., C.V. Baxter, and H.W. Li. 2002. Spatial scaling and longitudinal patterns of fish assemblage and stream habitat relationships. Oregon Chapter of the American Fisheries Society, 27 Feb - 1 Mar, Sunriver OR.	February 2002
Torgersen, C.E., C.V. Baxter, H.W. Li, and B.A. McIntosh. May 2000. Longitudinal patterns in fish assemblage and stream habitat relationships: Part I. Spatially continuous analysis and the influence of scale. 48th Annual Meeting of the North American Benthological Society.	May 2000
Titus, Keifer L., Katie M. Dugger, and Christian A. Hagen. 2024. Assessing the effect of hunter harvest on greater sage-grouse survival in southwestern Oregon. Western Association of Fish & Wildlife Agencies, 34th Biennial Sage & Columbian Sharp-Tailed Grouse Workshop. August 5 - 8, 2024, Wenatchee, WA.	August 2024	We assessed the effect of hunter harvest on sage-grouse survival between two distinct populations subject to different environmental, anthropogenic, and harvest pressures in SE Oregon. We had 4 years (2015-2018) of data from the Trout Creek Mountains where harvest did not occur, compared to all years in the Warners, and Trout Creek after harvest was reinstated (2019-2022). Our results suggested that harvest was not an additive source of mortality for sage-grouse in the Trout Creeks.
Thompson, N.F., Leblanc, C.A., Romer, J.D., Schreck, C.B., Blouin, M.S. and D.L.G. Noakes. Sex biased survival and differences in migration of wild steelhead (Oncorhynchus mykiss) smolts from two coastal Oregon Rivers. American Fisheries Society Annual Meeting, Aug 17-21, 2014. Québec City.	August 2014	Our data suggest that sex may affect smolt survival, but only during stressful migration conditions.
Thompson, N.F., Leblanc, C.A., Romer, J.D., Schreck, C.B., Blouin, M.S. and D.L.G. Noakes. 2014. Sex biased survival and differences in migration of wild steelhead (Oncorhynchus mykiss) smolts from two coastal Oregon Rivers. American Fisheries Society Annual Meeting. Eugene Oregon.	February 2014	This abstract was approved for another meeting in August. This is the exact same abstract.
Thompson, N., C. Leblanc, J. Romer, C. Schreck, M.l Blouin and D. Noakes. Sex and survival of wild steelhead (Oncorhynchus mykiss) smolts in Oregon rivers. American Fisheries Society Annual Meeting, Feb 25-28, 2014. Eugene, Oregon.	February 2014	Abstract was approved for another meeting in August. This is the same abstract.
Thompson, N., C. Leblanc, J. Romer, C. Schreck, M.l Blouin and D. Noakes. Sex and survival of wild steelhead (Oncorhynchus mykiss) smolts in Oregon rivers. American Fisheries Society Annual Meeting, Aug 17-21, 2014. Québec City.	August 2014	Our data suggest that sex may affect smolt survival, but only during stressful migration conditions (i.e. low river flows, extreme temperatures, heavy predation).
Thomas, H., R.C. Baumbusch, K.M. Dugger, and J.D. Wiens. 2020. Prey sharing between barred owls (Strix varia) in Oregon and Washington. 67th Annual Meeting of The Western Section of The Wildlife Society, February 3-7, 2020, Redding, CA.	February 2020	We necropsied 233 barred owls collected as pairs and analyzed their stomach contents. Preliminary results show a low occurrence of prey sharing, with 3% of pairs appearing to have shared the same prey item. However, 41% of pairs collected together had at least one prey taxon in their stomachs common to both individuals.
Thomas, A.D., A. Duarte, M. Gostin, J. Peterson, and D. B. Lesmesister. 2024. Passive acoustic monitoring is more efficient than audio-visual surveys for marbled murrelets Annual Conference of the Oregon Chapter of the Wildlife Society , Feb. 14-16, Hood River, OR	February 2024	Passive acoustic monitoring (PAM) using autonomous recording units (ARU) has become a useful survey method for auditory species. Our objective was to compare the detectability of MAMU using these two survey approaches as an initial evaluation of PAM efficacy for this species.
Testing paradigms in wildlife science. 70th anniversary of Department of Fisheries and Wildlife, Oregon State University, Corvallis OR.	July 2005
Tengeres, JE, KM Dugger, RM Corcoran, and DE Lyons. 2023. What's on the menu? What factors influence the daily nest survival rates of Aleutian tern nests on Kodiak Island, Alaska? 50th Annual Meeting of the Pacific Seabird Group. February 15-17, 2023,La Jolla, CA.	February 2023	We used the nest survival model in program MARK to estimate daily nest survival rates (DNS) as a function of colony location, year, within-season time trends, vegetation cover categories and height, and six weather covariates. In general DNS was low in all years, but the best year structure suggested 2017=2018, and 2019=2020. Year effects also varied by colony with higher DNS observed at nests with higher average vegetation height.
Tengeres, JE, KM Dugger, RM Corcoran, and DE Lyons. 2022. What's on the menu? What factors influence the daily nest survival rates of Aleutian tern nests on Kodiak Island, Alaska? 49th Annual Meeting of the Pacific Seabird Group (Virtual). February 23-25, 2022.	February 2022	We used the nest survival model in program MARK to estimate daily nest survival rates (DNS) as a function of colony location, year, within-season time trends, vegetation cover categories and height, and six weather covariates. In general DNS was low in all years, but the best year structure suggested 2017=2018, and 2019=2020. Year effects also varied by colony with higher DNS observed at nests with higher average vegetation height.
Tattam, I.A., J.R. Ruzycki, W.H. Wilson, T.D. Goby, H.W. Li and G.R. Giannico. 2005. Estimating abundance and spatial distribution of fall migrating Oncorhynchus mykiss in the south fork of the John Day River. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
Suzuki, Y., D.D. Roby, S.K. Nelson, K.N. Fischer, D.E. Lyons, and K. Collis. Contaminant Levels in Caspian Terns and Double-crested Cormorants from the Columbia River: Who Says Salmon are a Healthy Diet? 125th Annual Meeting of the American Ornithologists Union, Portland OR.	August 2008
Suzuki, Y., D.D. Roby, S.K. Nelson, K.N. Fischer, D.E. Lyons, and K. Collis. 2008. Contaminant Levels in Caspian Terns and Double-crested Cormorants from the Columbia River Basin. 35th Annual meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Suzuki, Y., D.D. Roby, M.A. Bishop, and M.L. Kissling. 2013. Caspian Tern invasion of Alaska? Northward breeding range expansion of the Pacific Coast population. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	The study describes the northward expansion of the breeding range of the Caspian tern into southeast and south-central Alaska, where two moderate-sized colonies have become well established in the last decade.
Suzuki, Y., D.D. Roby, K.M. Dugger, J.A. Gervais, D.E. Lyons, R.M. Suryan, and K. Collis. Management fairy tale or nightmare? Demography and inter-colony dispersal of Caspian terns in the Pacific Coast region of North America. 19th Annual Conference of The Wildlife Society, Portland, OR.	October 2012	Assesses the demography and inter-colony movement rates of Caspian terns in the western North America population, a population that is the focus of acute management efforts in some portions of its breeding range.
Suzuki, Y., D.D. Roby, K.M. Dugger, J.A. Gervais, D.E. Lyons, R.M. Suryan, and K. Collis. 2014. Long-distance dispersal results in a large-scale metapopulation of Caspian terns in western North America. 26th International Ornithological Congress, Tokyo, Japan.	August 2014	This study summarizes the inter-colony movement rates and demographic parameters of Caspian terns in the western North America metapopulation, with special emphasis on the world's largest colony of the species in the Columbia River estuary.
Suzuki, Y., D.D. Roby, K.M. Dugger, J.A. Gervais, D.E. Lyons, R.M. Suryan, and K. Collis. 2012. Management fairy tale or nightmare? Demography and inter-colony dispersal of Caspian terns in the Pacific Coast region of North America. The Wildlife Society Annual Meeting Conference, Portland, Oregon, October 13 - 18, 2012.	October 2012
Suzuki, Y., D.D. Roby, K.M. Dugger, J.A. Gervais, D.E. Lyons, R.M. Suryan, and K. Collis. 2012. Demography and metapopulation dynamics of Caspian Terns in the Pacific Coast region of North America. Fifth North American Ornithological Conference, Vancouver, B.C., 16 August.	August 2012
Suzuki, Y., D.D. Roby, K.A. Hobson, S.K. Nelson, and D.E. Lyons. Factors affecting contaminant burdens in fish-eating birds and their prey from a major North American estuary: Polychlorinated biphenols (PCBs) in the Columbia River estuary. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8 February.	February 2012
Suzuki, Y., D.D. Roby, K. Collis, D.E. Lyons, A.F. Evans, P.J. Loschl, T. Lawes, K. Bixler, S. Collar, A. Peck-Richardson, A. Mohoric, and M. Hawbecker. 2013. Implementation of the Caspian Tern Management Plan: Status of tern colonies in the Columbia River estuary and at Corps-constructed colony sites. Anadromous Fish Evaluation Program Annual Review, Walla Walla, WA.	December 2013	This study evaluates the efficacy of the Caspian Tern Management Plan for the Columbia River Estuary for relocating Caspian Terns from the large colony near the mouth of the Columbia River to alternative colony sites that have been constructed outside the Columbia Basin.
Suzuki, Y., D.D. Roby, D.E. Lyons, and K.N Fischer. 2008. Testing Potential management Techniques for Double-crested Cormorants Nesting in the Columbia River Estuary. Annual Meeting of the Oregon Chapter, The WIldlife Society, Gleneden Beach OR.	February 2008
Suzuki, Y., D.D. Roby, D.E. Lyons, R.M. Suryan, and K. Collis. Bonanza or scourge? Metapopulation dynamics of Caspian Terns in the Pacific Coast Region of North America. 1st World Seabird Conference, Victoria, B.C., Canada, 11 September.	September 2010
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T.J. Lawes, and K.S. Bixler. 2016. Response of Caspian Terns to reductions in available nesting habitat. Special Paper Session on Tern Colony Restoration and the Development of Conservation Networks: Breeding and Non-breeding Periods, 43rd Annual Meeting of the Pacific Seabird Group, Kahuku, HI.	February 2016	This paper uses resightings of Caspian terns banded with field-readable bands to assess dispersal patterns of breeding adults from colony sites where nesting habitat has become limiting.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T.J. Lawes, K.S. Bixler, and K. Collis. 2017. Footloose and fancy-free: survival, age at first return, and breeding in Caspian Terns. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation points out that despite some Caspian Terns returning to their natal colony as early as 2 years post-hatching and nesting as early as 3 years post-hatching, average age at first reproduction isn't until 6 years post-hatching. This despite survival from fledging to age 2 of only 0.50.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T.J. Lawes, K.S. Bixler, K. Collis, and M. Hawbecker. 2017. Connectivity of managed and un-managed Caspian tern breeding colonies as revealed by resightings of banded individuals and progress update on tern population modeling. Avian Predation Workshop, U.S. Army Corps of Engineers, The Dalles, Oregon. 2 March.	March 2017	This presentation described movement rates of breeding adult Caspian terns among breeding colonies in the Pacific Northwest and provided an update of efforts to develop a population model for Caspian terns in the Pacific Flyway.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T.J. Lawes, K.S. Bixler, K. Collis, and M. Hawbecker. 2014. Connectivity of managed and un-managed Caspian tern breeding colonies as revealed by resightings of banded individuals. Avian Predation Workshop, Walla Walla, WA, 3 December. (Invited)	December 2014	This presentation summarizes the movements of banded Caspian terns between breeding colonies in the Pacific Northwest, and reveals the degree of connectivity among breeding colonies in the region.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T. Lawes, K. Bixler, K. Collis, and M. Hawbecker. Connectivity of managed and unmanaged Caspian tern breeding colonies as revealed by resightings of banded individuals. 2014 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	December 2014	This paper demonstrates the high connectivity of Caspian tern breeding colonies throughout the Pacific Northwest, despite the high philopatry shown be many individuals to their previous colony site.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T. Lawes, K. Bixler, K. Collis, and H. Hawbecker. 2015. Connectivity of managed and un-managed Caspian tern colonies as revealed by resightings of banded individuals. 2015 Avian Predation Workshop, The Dalles, OR.	November 2015	This paper updates regional fish and wildlife managers on the movement rates of Caspian terns between breeding colonies as influenced by management at certain colony sites to reduce colony size.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, K.N. Courtot, and K. Collis. 2015. Novel non-lethal approaches to managing fisheries-cormorant conflicts. Annual Meeting of The Waterbird Society, Bar Harbor, Maine.	August 2015	This study describes and tests the feasibility of two new management approaches to reducing fisheries-cormorant conflicts non-lethally.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, T. Lawes, and K.S. Bixler. 2014. Age matters? Influence of management practices on age-specific colony arrival dates and age distribution in Caspian Terns. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This study demonstrated that young Caspian terns arrive later on the nesting grounds than older terns, and that new colony sites tended to be colonized by younger breeding pairs, helping to explain why new colony sites tend to be less productive than older established colonies.
Suzuki, Y., D.D. Roby, D.E. Lyons, P.J. Loschl, K.S. Bixler, and T. Lawes. 2015. Colony site fidelity in Caspian terns despite limited nesting habitat: When to stay and when to go. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper demonstrates the association between the nesting site fidelity of individual terns and the previous nesting history of the individual at that site. Some Caspian terns are extraordinarily site tenacious if they have a history of successful nesting there.
Suzuki, Y., D.D. Roby, D.E. Lyons, N. Schumaker, and D. Dishman. 2016. Progress report: Developing a Caspian tern population model for the Pacific Flyway population. Presented to the Caspian Tern Adaptive Management Team, Portland, OR.	September 2016	This paper presents a status update to the Caspian Tern Adaptive Management Team on the development of a comprehensive population model for the Pacific Flyway population of Caspian terns that can be used to project population trends based on different management scenarios.
Suzuki, Y., D.D. Roby, D.E. Lyons, L. Reinalda, K. Collis, and A. Evans. Cute decoys, awesome music, and hot wheels: attracting Double-crested Cormorants away from the world's largest colony. 34th Annual Meeting of the Pacific Seabird Group, Asilomar CA.	February 2007
Suzuki, Y., D.D. Roby, D.E. Lyons, K.N. Fischer, K. Collis, and A. Evans. A potential nondestructive management technique for double-crested cormorant breeding colonies. Annual Meeting of the Waterbirds Society, Cape May NJ	November 2009
Suzuki, Y., D.D. Roby, D.E. Lyons, K.M. Dugger, P.J. Loschl, T.J. Lawes, K.S. Bixler, and K. Collis. 2015. Connectivity of managed and un-managed Caspian Tern colonies in the Pacific Coast region of North America. 2nd World Seabird Conference, Cape Town, South Africa.	October 2015	This paper demonstrates the high connectivity of Caspian tern colonies between different regions, but especially within regions, as demonstrated by mark-recapture studies. Terns from managed colonies (to reduce colony size) tended to move at higher rates to un-managed colonies.
Suzuki, Y. D.D. Roby, D.E. Lyons, P.J. Loschl, and K.N. Courtot, B. Cramer, and K. Collis. 2015. Novel Non-Lethal Approaches to Managing Fisheries-Cormorant Conflicts in Western North America.	July 2015	This presentation describes some new approaches to managing Double-crested Cormorant colonies to reduce their impact on fish species of conservation concern.
Suzuki*, Y., D.D. Roby, K. Nelson, K. Fischer, D.E. Lyons, and K. Collis. 2009. Levels of persistent organochlorines in Caspian Terns and Double-crested Cormorants from the Columbia River Basin: Got contaminants? From what? 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 24 February.	February 2009
Suryan, R.M., D.P. Craig, D.D. Roby, W.D. Shuford, N.D. Chelgren, D.E. Lyons, and K. Collis. 2003. Redistribution and growth of the Caspian tern population along the Pacific Coast of North America: A 20-year assessment of population status. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Suryan, R.M., D.P. Craig, D.D. Roby, W.D. Shuford, N.D. Chelgren, D.E. Lyons, and K. Collis. 2003. Redistribution and growth of the Caspian tern population along the Pacific Coast of North America: A 20-year assessment of population status. Annual meeting of the Pacific Seabird Group.	January 2003
Suryan, R.M., D.B. Irons, P.G.R. Jodice, D.D. Roby, and E.M. Brown. Prey abundance and breeding success of the Black-legged Kittiwake (Rissa tridactyla), it was not that simple: A five-year ecosystem study. Pacific Seabird Group Annual Meeting, 22 February, Santa Barbara, CA.	February 2002
Suryan, R.M., D.B. Irons, M. Kaufman, J. Benson, P.G.R. Jodice, D.D. Roby and E.D. Brown. August 2000. Short-term fluctuations in forage fish availabilty and the effect on prey selection and reproductive performance of black-legged kittiwakes. 118th Stated Meeting of the American Ornithologists' Union.	August 2000
Suryan, R.M., D. Hyrenback, F. Sato, K. Ozaki, N. Oka, G. Balogh, D.D. Roby, D. Anderson, and P. Sievert. 2003. Post-breeding season dispersal of short-tailed albatrosses and potential interactions with commercial fisheries. Annual meeting of the Pacific Seabird Group.	January 2003
Suryan, R.M., D. Anderson, D.D. Roby, D. Hyrenbach, S. Shaffer, Y. Tremblay, F. Sato, and K. Ozaki. Wing loading and prevailing winds: their relative importance to the at-sea distribution of four species of Pacific albatrosses. Joint annual meeting of the Pacific Seabird Group and The Waterbird Society, Portland OR.	January 2005
Suryan, R.M., A.J. Gladics, B. Bridgeland, S.W. Stephensen, R. Swift, R.W. Lowe, and D.D. Roby. 2015. TESTING ACOUSTIC RECORDERS AND REMOTE CAMERAS TO MONITOR BREEDING POPULATIONS OF LEACH’S STORM-PETREL. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper tackles a long-standing problem for those responsible for monitoring breeding populations of burrow-nesting seabirds: How to count the number of active seabird nests in a maze of underground burrows without destroying the nests themselves.
Survival of steelhead in the Nehalem Estuary, Nehalem Watershed Council, Rhododendron, OR.	October 2001
Strong, C., R. Golightly, S. Schneider, K. Nelson, C. Horton, L. Adrean, J. Rivers, D.D. Roby, and M. Betts. 2018. Bailing on the California Current: Marbled Murrelet and other seabird response to unusual conditions in Oregon and northern California. 45th Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 21-24 February.	February 2018	This presentation documented the unprecedented scarcity of Marbled Murrelets at sea along the Oregon coast concurrent with higher numbers along the northern California coast during the 2017 nesting season. These results support the hypothesis that large numbers of murrelets dispersed from the Oregon coast in search of more abundant forage fish resources during the nesting season.
Stress in Fish and the Importance to Management Decisions. Pacific State Legislative Committee, Astoria, OR.	October 2001
Stratton-Garvin, L., S. Rounds, J. Peterson, T. Kock, and R. Wallick. 2022. Temperature and Habitat Modeling to Inform Streamflow Management in the Willamette River Annual meeting of the American fisheries society. 152 American Fisheries Society Annual Meeting, August 21-25, Spokane WA.	August 2022	The Willamette River is home to at least 69 species of fish, including federally-protected, cold-water adapted spring Chinook Salmon and winter steelhead. These fish have specific habitat requirements to survive and complete their various lifestages. Temperature, water depth, and velocity are known to be important habitat parameters for juvenile salmonids, which are all influenced by the amount of streamflow in the river. Streamflow (and, for some distance downstream of dam releases, temperatu
Stoner, K., A. Lescroël, A. Schmidt, G. Ballard, K.M. Dugger, M. Elrod, and D. Ainley. 2019. INFLUENCE OF BODY CONDITION AND ARRIVAL DATE ON BREEDING SUCCESS OF THE ADÉLIE PENGUIN (PYGOSCELIS ADELIAE). 46th Annual Meeting of the Pacific Seabird Group, Kauai, HI, 27 Feb - 2 March, 2019	February 2019	We explored potential impacts of winter conditions on Adélie penguins at Cape Crozier on Ross Island, Antarctica, by evaluating body condition and arrival date for ~100 individuals of known-age, known-breeding history, and breeding quality in 2017-18 and 2018-19. We used these data to test 1) whether better body condition at the beginning of the breeding season led to greater breeding success, possibly through higher investment in parental care and 2) whether birds of higher breeding quality ar
Stewart, H., C. Schreck and D. Noakes. (2016). Finding Your Wild Side: Production of Wild-Like Salmonids. World Aquaculture Society, February 22-26, 2016	February 2016	We investigated how hatchery conditions shape the fish we produce. We show how diet, feeding rate, substrate, density, temperature, flow, and structures can be used to produce fish in a hatchery that look more like wild individuals and migrate downstream.
Stewart, H, et al. (2015). You’ve got to know when to hold ‘em: Determination of appropriate transport and release timing of juvenile Chinook salmon. Northwest Fish Culture Conference. Wilsonville, OR, December 1-3, 2015.	December 2015	Our research suggests that handling and transport should be avoided during seasons negatively impacting salmonids to increase percentage of survival and avoid stunted growth.
Status and trends in demography of northern spotted owls, 1985-2003. Science and the Northwest Forest Plan: Knowledge gained over a decade. College of Forestry, Oregon State University.	April 2005
Stahl, T., C.B. Schreck, and D. Roby. January 2000. Avian predation in Oregon estuaries and juvenile salmonid migration. Oregon Chapter, American Fisheries Society.	January 2000
Stahl, T., C.B. Schreck, and D. Roby. January 2000. Avian predation in Oregon estuaries and juvenile salmonid migration. 21st Smolt Workshop Smoltification: Changing Persepectives in Research & Management.	January 2000
Spencer, M.L., B.L. Olla, and C.B. Schreck. January 2001. Behavioral and physiological indicators of stress in sablefish, ANOPLOPOMA FIMBRIA. Joint annual meeting of the Oregon Chapters of the American Fisheries Society and The Wildlife Society.	January 2001
Souza, S.A., R.C. Baumbusch, K.M. Dugger, and J.D. Wiens. 2020. Identification and quantification of Barred owl (Strix varia) intestinal parasites in the Pacific Northwest. 67th Annual Meeting of The Western Section of The Wildlife Society, February 3-7, 2020, Redding, CA.	February 2020	We necropsied 1329 barred owls collected as part of a removal experiment over 3 years from 3 separate study areas in Washington and Oregon. Based on preliminary results from gross examination of dissected barred owls, 7% of individuals are infected with a parasite. Currently, we are examining the intestinal contents of a subset of owls collected to 1) identify which helminth parasites infect barred owls, 2) estimate prevalence of these parasites in our sample and 3) estimate parasite loads with
Somers, LN, D Jackson, and KM Dugger. 2022. Home Range Estimates for Ringtail in Southwestern Oregon. Oregon Chapter of The Wildlife Society 2022 Annual Conference, Newport, OR, Feb 23-25, 2022.	February 2022	We deployed GPS collars on 11 adult ringtail (10 males and 1 female) from October 2020- August 2021 in the Eastern Siskiyou mountains of Jackson County, Oregon. Using this location data we delineated home range providing the first estimates of ringtail home range size in Oregon and the only home range estimates for ringtail using locations from GPS collars.
Somers, L.N., K.M. Dugger, and D.H. Jackson. 2024. Home is where the snag is: ringtail rest site use in Southwest Oregon. 2024 Annual Conference of the Oregon Chapter of The Wildlife Society. February 14-16, 2024, Hood River, OR.	February 2024	We located 56 unique diurnal rest sites for 14 radio-collared ringtail in southwestern Oregon to identify rest structure type, and the vegetation and landscape characteristics around rest structures. We found ringtail were much more likely to use dead snags rather than live trees and the presence of a tree in a suitable state of decay was more important than fine-scale characteristics of rest sites.
Smith, W.P., R.G. Anthony, D.K. Rosenberg, J. Waters and C.J. Zabel. September 2000. Ecology and conservation of arboreal rodents in western coniferous forests. The Wildlife Society 7th Annual Conference.	September 2000
Sink, CE, KM Dugger, CA Hagen, and J Vradenburg. 2022. Demographic rates of a declining and augmented population of greater sage-grouse in Modoc County California, USA. The Wildlife Society's 29th Annual Conference, November 6-10, 2022, Spokane, WA	November 2022	We estimated adult survival, nest success, and brood survival for a population of geographically isolated sage-grouse in Modoc County, California. Estimates of vital rates for this population were 45-55% lower than range-wide estimates, suggesting recent recent habitat changes caused by wildfire and invasive grasses are having a detrimental effect on this population across all life stages.
Sink, CE, KM Dugger, CA Hagen, JW Beckstrand, and J Vradenburg. 2022. A population in peril: sage-grouse nest ecology in a degraded landscape in Modoc County California, USA. Oregon Chapter of The Wildlife Society 2022 Annual Conference, Newport, OR, Feb 23-25, 2022.	February 2022	Despite significant efforts to increase the population of greater sage-grouse in Modoc Co., California through a combination of translocations and habitat improvement only a single lek remains (down from 56 in the 1940s). Nest survival is hypothesized to be a limiting factor for this population's growth, therefore we monitored 39 nests of females with GPS PTTS from 2019 to 2021 to assess vegetation factors that influence daily nest survival at the microhabitat and landscape level scales using k
Sink, C.E., K.M. Dugger, and C.A. Hagen. 2019. Connecting the dogs, identifying barriers to greater sage-grouse population expansion at Clear Lake National Wildlife Refuge, California, USA. 26th Annual Meeting of The Wildlife Society, Sept. 29 - Oct. 3, 2019, Reno, NV.	September 2019	We seek to identify potential bottlenecks in the life history of sage-grouse on Clear Lake. To achieve this, we will outfit sage-grouse with rump-mounted satellite Global Positioning System PTTs to compare movements and vital rates of translocated and resident females to determine what may be limiting population growth of sage-grouse on Clear Lake.
Sink, C.E., K.M. Dugger, C.A. Hagen, and J. W. Beckstrand. 2020. Translocating sage-grouse: shell-game or effective conservation tool? Oregon Chapter of The Wildlife Society's Annual Meeting, February 4-7, 2020, Eugene, OR.	February 2020	Using GPS locations and field data collected in 2018 and 2019, we will compare preliminary results on survival, reproductive success, home-range sizes, and movement rates of PTT-marked translocated birds on Clear Lake to translocation studies in California, Washington, Idaho, and Utah where birds are monitored using VHF telemetry devices.
Sidlauskas, B.L. H. Aydoğan, Á. Cortés, A.N. Black, B. Penaluna, and J. Peterson. 2021. Towards a deeper molecular and morphological understanding of Oregon’s native non-game fish diversity. Oregon Chapter of the American Fisheries Society Annual Meeting, March 3-5	March 2021	This presentation outlines a new phase of studies that will link reduced-representation genome sequencing to cutting-edge digital morphometry of museum specimens to investigate the taxonomy of <i>Cottus</i> and <i>Rhinichthys</i> in Oregon with unprecedented detail. When available, results will have the potential to improve identification keys, refine distribution maps, unravel remaining thorny knots in sculpin taxonomy, and clarify when and how the population of <i>Rhinichthys osculus </i>in
Shippentower, G.E., C. Schreck and S. Heppell. 2006. Development of a maternally transferred marker for salmonids. 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Sheoships, G.T., L.D. Schultz, M.P. Mayfield, and C.B. Schreck. The nature of stream substrate affects the abundance of larval Pacific Lamprey Entosphenus tridentatus in the Willamette Basin. Oregon Chapter American Fisheries Society, Feb 25-28, 2014. Eugene, Oregon.	February 2014	Our study indicates that substrate particle size was an important variable for larval lamprey habitat. To promote conservation of the Pacific Lamprey, activities that promote natural river flow and distribution of fine sediment may be of benefit.
Sheoships, G. & C. Schreck. (2015). PACIFIC LAMPREY: INTEGRATING TRADITIONAL ECOLOGICAL KNOWLEDGE AND CONTEMPORARY VALUES INTO CONSERVATION PLANNING. American Fisheries Society 145th Annual Meeting. Portland, Oregon, August 16-20, 2015.	August 2015	Pacific lamprey are in decline throughout their native range, and lack biological information. Pacific lamprey is a cultural icon for Native American Tribes, who dedicate research funds to address their recovery. To determine tribal values for the purpose of informing conservation planning of Pacific lamprey, we utilized 1), oral history interviews of tribal elders, and 2), written questionnaires distributed to adult (18 years and older) tribal populations.
Sheffield, L.M., D.D. Roby, and D.B. Irons. Gross underestimation: the sordid truth about estimates of auklet abundance in the Bering Sea. Joint annual meeting of the Pacific Seabird Group and The Waterbird Society, Portland OR.	January 2005
Sheffield, L.M., A.E. Gall, D.D. Roby, I.C. Rose and D.B. Irons. The influence of ocean conditions on inter-annual variation in diet composition and productivity of planktivorous seabirds on St. Lawrence Island in the norhtern Bering Sea. GLOBEC Symposium on climate variability and sub-arctic marine ecosystems, Victoria BC Canada.	May 2005
Sheffield, L., D. Roby, and D. Irons. Inter-colony differences in least auklet chick provisioning behavior reflect differences in foraging radius and diet quality. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 22 January 2004.	January 2004
Shea, C.P., J.T. Peterson, J.M. Wisniewski, and N.A. Johnson. 2011. Misidentification of freshwater mussel species (Bivalvia: Unionidae): contributing factors, management implications, and potential solutions. Freshwater Mollusk Conservation Society 7th Biennial Symposium, April 11–15, Louisville, KY	April 2011
Shea, C.P. J.T. Peterson, and J.M. Wisniewski. 2012. : Estimation of Mussel Population Response to Hydrologic Alteration in the Apalachicola, Chattahoochee, and Flint River Basin. Freshwater Mollusk Conservation Society 2012 Symposium, April 18-20, Athens GA. (INVITED)	April 2012
Seals, C., and C.B. Schreck. March 2000. Saltwater-entry behavior of juvenile chinook salmon: A link between smolting physiology and early ocean survival. Western Regional Conference on Comparative Endocrinology.	March 2000
Schwindt, A.R., M. Alonso, J.C. Leong, W. Contreras-Sanchez, and C.B. Schreck. 2003. Stress induced differential gene expression in the brain of juvenile steelhead trout (Oncorhynchus mykiss). Western Regional Conference on Comparative Endocrinology.	January 2003
Schwindt, A.R., L. Ackerman, C.B. Schreck, J.M. Ramsay, S. Simonich and M.L. Kent. 2006. Influence of mercury and xenoestrogens on biomarkers in trout from western U.S. National Parks. 5th International Symposium on Aquatic Animal Health, San Francisco, CA.	October 2006
Schwindt, A.R., C.B. Schreck, L. Ackerman, S. Usenko, J.M. Ramsay, S. Simonich, and M. Kent. February 20, 2004. Do airborne contaminants affect fish in the lakes of western U.S. National Parks? Presentation at the Annual Meeting of the Oregon Chapter of the American Fishery Society.	February 2004
Schwindt, A.R., C.B. Schreck, L. Ackerman, J.M. Ramsay, S. Simonich, and M.L. Kent. 2006. Airborne contaminants and the effect on fish in western U.S. National Parks. Western Regional Conference on Comparative Endocrinology, Newport, OR.	October 2006
Schwindt, A.R., C.B. Schreck, L. Ackerman, J.M. Ramsay, S. Simonich, and M.L. Kent. 2006. Airborne contaminants and the effect on fish in western U.S. National Parks. 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Schwindt, A.R., C.B. Schreck, L. Ackerman, J.M. Ramsay, S. Simonich and M.L. Kent. 2006. Airborne contaminants and the effect on fish in western U.S. National Parks. 7th International Congress on the Biology of Fish, St. John?s, Newfoundland, Canada.	October 2006
Schwindt, A.R., C.B. Schreck, D.H. Landers, J. Ramsay, L. Ackerman, S. Usenko, S. Simonich, and M. Kent. September 7, 2004. Do airborne contaminants affect fish in the lakes of western U.S. National Parks? Poster at the 5th International Symposium on Fish Endocrinology on the Campus of the University Jaume I of Castellon in Spain.	September 2004
Schwindt, A.R. and C.B. Schreck. 2005. Evidence of xenoestrogens in fishes from Rocky Mountain National Park, Colorado. Oregon Chapter of the American Fisheries Society 41st annual meeting, Corvallis OR.	February 2005
Schwindt, A., M. Alonso, J.C. Leong, W. Contreras-Sanchez and C.B. Schreck. 2003. Stress-induced differential gene expression in the brains of juvenile steelhead trout. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Schwindt, A., J. Leong, and C.B. Schreck. 2002. Stress-induced differential gene expression in teh brains of juvenile steelhead trout. International Congress of Fish Biology, Vancouver BC Canada.	July 2002
Schwindt, A., C. Schreck, and M. Kent. 2006. Macrophage aggregates are biomarkes of total mercury in trout from lakes in the western U.S. National Parks. SETAC, Montreal, Canada.	October 2006
Schwindt, A., C. Schreck, and M. Kent. 2006. Macrophage aggregates are biomarkers of total mercury in trout from lakes in the western U.S. national parks. 47th Western Fish Disease Workshop, Victoria, British Columbia, Canada.	October 2006
Schultz, L.D., Wyss, L.A., Clemens, B.J., Sheoships,G.T., Schreck, C.B.Habitat factors related to the relative abundance and distribution of larval Pacific Lamprey in the Willamette River Basin. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	Our objective was to identify critical larval lamprey rearing locations by estimating the relative abundance and assessing associated habitat features in the Willamette Basin. Furthermore, our data will allow managers to assess and prioritize management actions to halt the decline of Pacific lamprey and recover the species across its range.
Schultz, L.D., Wyss, L.A., Clemens, B.J., Sheoships, G.T., Schreck, C.B. Habitat factors associated with the relative abundance and distribution of larval Pacific Lamprey in the Willamette River Basin. Annual Meeting of the Western Division of the American Fisheries Society, Boise, ID. April 15-18, 2013.	April 2013	Our survey methods may be used to develop and refine a long-term monitoring program for Pacific lamprey ammocoetes. Our data will also allow managers to assess and prioritize management actions for conserving and recovering Pacific lamprey.
Schultz, L.D., M. P. Mayfield, L. A. Wyss, B. J. Clemens, G. T. Sheoships, and C. B. Schreck. Monitoring strategies for Pacific lamprey: Lessons learned from three years of spawning and larval surveys in the Willamette River Basin. Western Division American Fisheries Society Meeting, April 6-11, 2014. Mazatlan Mexico.	April 2014	These data suggest conservation actions to address declining Lamprey populations and provide methods that can be used to monitor Lamprey across its range. Ongoing habitat restoration for salmonids should also benefit Lamprey.
Schultz, L.D., M. P. Mayfield, B.Chasco, L. A. Wyss, G. T. Sheoships, and C. B. Schreck. Lessons learned from three years of Pacific Lamprey spawning and larval surveys in the Willamette River Basin. Washington Chapter AFS Annual Meeting, Vancouver Washington. March 24-27, 2014.	March 2014	. From our resampling analyses, we recommend that 100-200 individuals are needed to accurately characterize length frequency of larvae. We estimated mortality to be ~13%, indicating high survival through this life history stage. Our findings suggest conservation actions to address population declines of Lamprey and provide methods that can be used to monitor Lamprey.
Schultz, L., Mayfield, M., Chasco, B., Sheoships, G., Schreck, C. A Declining Generalist? The Curious Case of the Pacific Lamprey (Entosphenus tridentatus) in the Northwest. Ecology and Evolutionary Ethology of Fishes Meeting. June 22-26, 2014. Corvallis, OR.	June 2014	We will present this information within the context of its life cycle and highlight remaining knowledge gaps in Pacific lamprey ecology and potential threats that currently hinder effective recovery. Using Pacific lamprey as an illustration, we propose a framework for thinking about the management of generalist species that exhibit complex and/or anadromous life histories. We also suggest a paradigmatic shift in how we think about the resilience of "generalist" species, and how this relates to
Schultz, L., B. Chasco, S. Whitlock, M. Mayfield, C. Schreck. (2015). Using length-based methods to estimate mortality rates of larval Pacific lamprey. American Fisheries Society 145th Annual Meeting. Portland, Oregon, August 16-20, 2015.	August 2015	Sensitivity analysis suggested annual mortality of ~15%, which is exceptionally low for a larval fish. These estimates provide a baseline to which other assessments of Pacific Lamprey populations can be compared, and may be used to implement and evaluate management actions for these fishes. In addition, our approach further develops length-based methods that can be utilized in population analyses with fishes that display similar life histories or ageing-related challenges.
Schreck, Carl B. Why is the endocrine system so similar and why is it so dissimilar amongst fishes? European Comparative Ecologists Conference, Zurich Switzerland, August 2012.	August 2012
Schreck, C.B., and G.W. Iwama. June 2000. Risk assessment and biomarkers. Workshop on the interactions among the environment, the endocrine and immune systems and resistance to disease in marine organisms.	June 2000
Schreck, C.B., T.S. Momoda, R. Chitwood, G. Feist and J. Colt. 2008. Effects of Stress and Injury Associated with Transporting Live Tilapia. International Congress on the Biology of Fish, Portland OR.	July 2008
Schreck, C.B., T. Stahl, L. Davis, C. Seals, D. Lerner, G. Oosterhout, and J. Congleton. March 2000. Endocrinology and assessment of salmon health: Application to Endangered Species Act decisions. Western Regional Conference on Comparative Endocrinology.	March 2000
Schreck, C.B., S. Clements, and M. Karnowski. February 17-18, 2004. Radio and acoustic telmetry: tags, tagging, and reception. Organizer and Facilitator, Annual Meeting of the Oregon Chapter of the American Fishery Society, Sunriver, Oregon.	February 2004
Schreck, C.B., S. Clements, and D. Lerner. January 2001. Migratory behavior and effects of stress on salmonids in lower rivers and estuaries. 6th International Workshop on Salmonid Smoltification.	January 2001
Schreck, C.B., S. Clements, B. Clemens, M. Karnowski, N. Truelove, A. Schwindt, T. Momoda, C. Hackman, A. Liebert, C. Bayne and A. Batista. 2005. Strategies for smolt migration of Pacific salmonids in large and small fisheries. The 7th International workshop on salmonid smoltification, Tono Japan.	September 2005
Schreck, C.B., Noakes, D. (2014). Steelhead Trout Fry Flume in Water Temperature Selection. Japan Society of Fisheries Science. Sept 19, 2014.	September 2014	Anadromous Pacific salmonids of all species tested initiate downstream when experiencing a minute (<0.5 C) decrease in temperature. The mechanism appears to be via an elevation in circulating levels of thyroxine and cortisol. These are the same hormones that cause smolt migration. Resident rainbow, however have a totally different physiology in tems of cooling when compared to migratory steelhead.
Schreck, C.B., L. Davis, C. Seals, T. Stahl, J. Congleton, R. Pascho, and G. Oosterhout. August 2000. Interaction of stress, pathogens and development on behavior of teleosts. International Fish Biology Congress. University of Aberdeen, Aberdeen, Scotland UK. Plenary lecture.	August 2000
Schreck, C.B., Kent, M., Benda, S., Unrein, J., Chitwood, R. Watral, V., Caudill, C.C., and Naughton, G. Prespawn mortality in spring Chinook salmon in the upper Willamette River: potential management options. US Army Corps of Engineers, Annual Willamette River Science Review, Corvallis, OR Jan 30- Feb 1, 2012.	January 2012
Schreck, C.B., J.D. Romer, C.A. Leblanc, S. Clements, A.I. Gitelman and D. Noakes. What part of Steelhead “Ocean Mortality’ can be explained by Survival in Lower Rivers and Estuaries. Pacific Coast Steelhead Management Meeting, Redmond OR.	January 2010
Schreck, C.B., J. Peterson, S. Benda, M, Colvin, M. Kent, C. Sharpe. 2014. Staying Alive to Spawn in Spring Chinook Salmon: Which Life History Tactic of Host of Parasite Prevails. 19th Biennial Ecological and Evolutionary Ethology of Fishes Meeting. Corvallis, Oregon.	June 2014	.
Schreck, C.B., G. Feist, and M.S. Fitzpatrick. January 2000. Reproductive biomarkers in white sturgeon: Is endocrine disruption occurring in the Columbia River? Oregon Chapter, American Fisheries Society.	January 2000
Schreck, C.B., E.J. Billman, J. Unrein, L.D. Whitman, R.K. Schroeder, C.S. Sharpe, N. McGibben, B. Brgnon, A. Manakata, and D.G. Noakes. (2014). Is Juvenile Migration Phenotype Established By Recent Stimuli Or Much Earlier In Life And Can They Be Affected By Hatchery Practices? Hatchery Vs. Wild Salmonid Symposium. January 22-23, 2015. Portland, OR.	January 2015	We suggest that downstream movement of juveniles soon after emergence is associated with differentiation in the expression of life history variation. This contention is also supported by movement studies in large artificial streams and in a small tributary stream.
Schreck, C.B., E. Billman, J. Unrein, R. Chitwood, K. Schroeder, D. Noakes. 2013. Determinants of juvenile downstream movement behavior. 9th International Workshop on Salmonid Smoltification. Reykjavik and Holar, Iceland. [INVITED]	August 2013	.
Schreck, C.B., D.D. Roby, K. Dugger, and J. Peterson. 2015. Meeting Cooperator needs: Examples from the Oregon Cooperative Fish and Wildlife Research Unit. North American Wildlife & Natural Resources Conference, Omaha, NE, 8-13 March. (Invited)	March 2015	This presentation discusses how the Cooperative Research Units meet the research needs of their cooperators: State land-grant universities, state fish and wildlife management agencies, and federal fish and wildlife management agencies.
Schreck, C.B., Clemens, B.J., van de Wetering, S., Wyss, L, McCoun-Travers, R., Lampman, R., and Sower, S.A. Physiological, behavioral and ecological diversity in adult Pacific lamprey, Entrosphenus tridentatus, after return to freshwater. International Symposium on Fish Endocrinology, Buenor Aires, Argentina September 2012.	September 2012
Schreck, C.B., Billman, E.J. Unrein, J., Chitwood, R., Whitman, L.D., Schroeder, R.K., Sharpe, C.S., Kimmel, C., and Noakes, D.L.G. Is Juvenile Migration Phenotype Established By Recent Stimuli or Much Earlier in Life. International Congress on the Biology of Fish. Edinburgh, UK. August 2-7, 2014.	August 2014	We suggest that downstream movement of juveniles soon after emergence is associated with differentiation in the expression of life history variation. This contention is also supported by movement studies in large artificial streams and in a small tributary stream.
Schreck, C.B., Benda, S., Kent, M., Caudill, C.C., and Zwollo, P. Potential endocrine and immune involvement in natural senescence and prespawning death in wild adult Chinook salmon. European Comparative Ecologists Conference, Zurich Switzerland, August 2012.	February 2012
Schreck, C.B., Benda, S., Kent, M., Caudill, C.C., and Zwollo, P. Potential endocrine and immune involvement in natural senescence and prespawning death in wild adult Chinook salmon. European Comparative Ecologists Conference, Zurich Switzerland, August 2012.	August 2012
Schreck, C.B., B.J. Clemens, R. Lampman and S. Moyers. Fine- and course-scale migration behavior and habitat use of adult Pacific lamprey from two rivers in Western Oregon, USA: complex behavior in complex systems. 1st International Conference on Fish Telemetry, June 12-18, Sapporo Japan.	June 2011
Schreck, C.B., B. Clemens, A. Bruno, S. Reid, S van de Wetering, J. Dunham and B. Streif. 2008. Research in Western Oregon (panel discussion). Western Oregon Lamprey Workshop, Canyonville OR.	February 2008
Schreck, C.B., A. Schwindt, D. Lauders, L. Ackerman, S. Simonich, S. Blett and M. Kent. 2008. Airborne Contaminants and Endocrine Disruption in Pristine US National Parks and Effects of Stress on Vitellogenin. 6th International Symposium on Fish Endocrinology, Calgary, Alberta Canada.	June 2008
Schreck, C.B. and S.P. Clements. 2003. Radio and acoustic telemetry establish migration patterns for salmonids from upper watersheds to the ocean and identify location and sources of mortality and can be used to ascertain behavior of marine mammals. Fifth Conference on Fish Telemetry.	January 2003
Schreck, C.B. and R. Chitwood. Rearing off juvenile and adult Pacific lamprey. First International forum on the Recovery and Propagation of Lamprey. Sponsored by the Columbia River Inter-Tribal Fish Commission, April 19-21, Portland OR.	April 2011
Schreck, C.B. and B.J. Clemens. 2008. Critical Unknowns, Restoration and Current Research. Western Oregon Lamprey Workshop, Canyonville OR.	February 2008
Schreck, C.B. and A.G. Maule. January 2001. Are the endocrine and immune systems really the same thing? International Congress of Comparative Endocrinology.	January 2001
Schreck, C.B. Urban Pesticides: Assessment Difficulties and Lessons from Pristine Environments (National Parks). The Oregon Chapter of The American Fisheries Society 45th Annual Meeting.	February 2009
Schreck, C.B. October 2000. Stress and health of fish.	October 2000
Schreck, C.B. October 2000. Fish health and stress and the immune system.	October 2000
Schreck, C.B. Needles in Haystacks, Haruspication and Much Harder than Rocket Science: Perspectives on Science for Fisheries. Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February.	February 2010
Schreck, C.B. Lamprey in the Willamette River System . Public Lecture. Museum of the Oregon Territory, Oregon City, OR. July 21, 2012.	July 2012
Schreck, C.B. Haruspication: Why is the Endocrine System so Similar and Why is it so Dissimilar amongst Fishes? Society of Integrative and Comparative Biology, Seattle WA.	January 2010
Schreck, C.B. August 2000. Migration of juvenile Chinook salmon and effects of development, stress, and pathogens. 4th International Symposium on fish endocrinology.	August 2000
Schreck, C.B. 2014. What’s the only thing about the Civil War Football Game that doesn’t affect salmon recovery in the Willamette? Rotary Club of Corvallis, Corvallis, OR. [INVITED]	April 2014	.
Schreck, C.B. 2014. The cry of Pacific Lamprey: what our most ancient fish is telling us about our waters. Corvallis Science Pub. Corvallis, OR. [INVITED]	February 2014	.
Schreck, C.B. 2008. Opening and Welcoming Remarks. 6th International Symposium on Fish Endocrinology, Calgary, Alberta Canada.	June 2008
Schreck, C.B. 2006. Stress management for fishes in aquaculture from rearing to handling and transport. World Aquaculture Society Annual Meeting, Florence, Italy.	October 2006
Schreck, C.B. 2006. Plenary Lecture: The endocrinology of stress. Conference of European Comparative Endocrinologists. Manchester, England.	October 2006
Schreck, C.B. 2006. If fish could run, they still can?t hide: contaminants correlate to biological effects in fish from pristine National Parks to the Columbia. U.S. Fish and Wildlife Service, Region 1, Spotlight on Science, Portland, OR.	October 2006
Schreck, C.B. 2005. The Oregon plan: ask not what you can do for hatcheries but what hatcheries can do for you. Oregon Chapter of the American Fishiers Society 41st annual meeting, Corvallis OR.	February 2005
Schreck, C.B. 2005. Chair, Stress: Neural and immune cells and receptors. 15th International Congress of Comparative Endocrinology, Boston MA.	September 2005
Schreck, C.B. (2015). Ethical responsibilities for aquaculture- considerations from a governmental perspective. American Fisheries Society 145th Annual Meeting. Portland, Oregon, August 16-20, 2015.	August 2015	Ethics provides us with a method to weight alternative outcomes or the rightness of alternative procedures. I argue that there is a moral obligation to incorporate ethics in aquaculture actions and decision making.
Schreck, C.B. 2013. Life History and restoration planning. West Coast Salmon Summit. Coquille Indian Tribe. Coos Bay, Oregon May 16-17. [INVITED]	May 2013	.
Schreck, C.B. 2009. Symposium on Stress and adaptation in Vertebrates. Invited organizer and host.International Conference of Comparative Endocrinology, University of Hong Kong.	June 2009
Schreck, C., Kent, M., Colvin, M.E., Benda, S., Sharpe, C., Peterson, J.T., Doland, B., Chitwood, R., Unrein, J., Caudill, C.C., Naugton, G. Evaluating potential causes and management of pre-spawning mortality in adult upper Willamette River Chinook salmon. Willamette Fisheries Science Review, Corvallis Oregon. February 5-7, 2013.	February 2013	This study has shown associations between PSM and water temperature, exposure, salmon condition, and pathogens, however, causal links remain speculative and uncertain. Current results to date have encompassed a small portion of Willamette River hydrological variability and therefore suggest that much can be learned from continued study.
Schreck, C., B. Dolan, M. Kent, M. Colvin, J. Peterson. (2017). Stress, the immune system and maturation in Chinook salmon. International Congress of Comparative Endocrinology. Alberta, Canada. June 4-9, 2017.	June 2017	We cautiously speculate that prespawning mortality is in part resultant from the fish having Cushing Syndrome-like expression earlier than normal.
Schreck, C., A. Schwindt. D. Landers, L. Ackerman, S. Simonich, and M. Kent. 2007. Possible biological effects of Airborne contaminants in pristine? Western U.S. National Parks? George Wright Society. St, Paul, MN.	September 2007
Schreck, C., A. Schwindt. D. Landers, L. Ackerman, S. Simonich, and M. Kent. 2007. Do airborne contaminants cause endocrine disruption of salmonids in ?pristine? Western U.S. National Parks? 8th International Symposium on the Reproductive Physiology of Fish. St. Malo, France.	September 2007
Schreck, C., A. Schwindt, D. Landers, L. Ackerman, S. Simonich, T. Blett, and M. Kent. 2007. Do airborne contaminants cause endocrine disruption to salmonids in ?pristine? western U.S. national parks? 37th Western Regional Conference on Comparative Endocrinology, San Juan Island, WA.	September 2007
Schreck, C. M. E. Colvin2, C. Sharpe, J. T. Peterson, M. Kent, S. Benda, B. Dolan, and C. C. Caudill. Evaluating Potential Causes And Management Of Pre-Spawning Mortality In Adult Upper Willamette River Chinook Salmon. Willamette Fisheries Science Review, Corvallis OR, February 5-7	February 2013	To use the information and relations developed in this study to:<br>•Develop management options that could reduce prespawning mortality•Provide information that could allow for prediction of prespawning mortality in the future
Schreck, C. Beginning to Understand Sexual Dimorphisms of Fishes. International Congress on the Biology of Fish, Barcelona Spain, 6 July.	July 2010
Schreck, C. B., September 9, 2004. Concluding remarks to the symposium. Presentation at the 5th International Symposium on Fish Endocrinology on the Campus of the University Jaume I of Castellon in Spain.	September 2004
Schreck, C. B., September 5, 2004. Introductory remarks to the symposium. Presentation at the 5th International Symposium on Fish Endocrinology on the Campus of the University Jaume I of Castellon in Spain.	September 2004
Schreck, C. B., March 6, 2004. Sustainable aquaculture in Central America: A multidisciplinary approach. CRSP Annual Meeting. Presentation at the World Aquaculture Society Annual Conference. Honolulu, Hawaii.	March 2004
Schreck, C. 2007. Memorial for the late Professor Richard E. Peter. 37th Western Regional Conference on Comparative Endocrinology, San Juan Island, WA.	September 2007
Schreck, C. (2017). ESA Recovery Plans and the Need for Action Measures Concerning Contaminants. Oregon Chapter for American Fisheries Society, Bend, OR. Feb 28-March 3.	February 2017	My review of numerous plans for recovery of ESA-listed fishes of a variety of species suggest that they: (1) tend to present strategies rather than actual tactics for recovery, (2) pay only lip service to the importance of the role of contaminants as population regulatory factors, and (3) never present any implementable actions to eliminate this threat.
Schreck, C. (2016). Stress, haruspication and why the endocrine system is so similar & also dissimilar amongst fishes. International Symposium on Fish Endocrinology in Gothenburg, Sweden, 28TH JUNE – 2ND JULY 2016.	June 2016	This lecture is dedicated to Dick Peter for his wisdom, friendship, and the major influence he had on how we think about and practice our science. In keeping with that theme, I will present information from my work, most of which is new and unpublished, that supports the contention that the generalities concerning the endocrine system across the great diversity of fishes is remarkably similar, yet at the level of the individual, population and species, is remarkably dissimilar.
Schmidt, AE, A Lescroël, S Lisovski, M Elrod, D Jongsomjit, KM Dugger, and G Ballard. 2023. Sea ice concentration decline in an important Adélie penguin molt area. XIII SCAR Biology Symposium, 31 July - 4 August, 2023, Christchurch, New Zealand.	July 2023	Using data from 195 geolocating devices we identified molt locations on pack ice in the Ross Sea for Adélie penguins during 2017-2019. From remotely sensed data were able to determine that sea ice concentration in the molt area during this study was lower than normal relative to the long-term trend.
Schmidt, A. E., G. Ballard, K. M. Dugger, A. Lescroël, P.O’B. Lyver, and D.G. Ainley. 2016. The relationship between nesting habitat, breeding success, and individual quality in Adélie penguins (Pygoscelis adeliae). 9th International Penguin Conference, Cape Town, South Africa, September 5-9, 2016.	September 2016	We use data collected from 1996-2015 at two Adélie penguin (Pygoscelis adeliae) colonies on Ross Island (Ross Sea, Antarctica) of different size and population growth rates to establish whether habitat characteristics affect breeding success and recruitment at the scale of colonies, subcolonies, and individual territories.
Schmidt, A, A Lescroël, S. Lisovski, KM Dugger, DG Ainley, and G Ballard. 2022. Sea ice as molting habitat: a potential limit on Adélie penguin populations? 28th International Ornithological Congress, August 14-22, 2022, Durbin, South Africa, HYBRID meeting.	August 2022	We used geolocating diver recorders attached to Adélie penguins from 2 breeding colonies on Ross Island, Antarctica to estimate molt timing and duration. Adélie penguins molt on sea ice in the ocean after breeding, and return rates of penguins to breeding colonies on Ross Island after molting and wintering are lower when sea ice concentration in molting areas is low. This suggests ocean conditions during the molting period might have important effects on penguin population trajectories.
Schilling, J.W., K.M. Dugger, and R.G. Anthony. Survival, Home Range, and Habitat Selection of Northern Spotted Owls in the Ashland Watershed. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 12 February.	February 2009
Schilling, J., K. Dugger, R. Anthony, and D. Clayton. Home Range and Survival of Northern Spotted Owls in the Siskiyou Mountains. 6th Annual Symposium on Research Advances in Fisheries, Wildlife, and Ecology, Corvallis OR, 11 November.	November 2008
Schilling, J. W., K. M. Dugger, R. G. Anthony, and D. Clayton. Survival, home range, and habitat selection of northern spotted owls in the Siskiyou Mountains of southwestern Oregon. Annual Conference of The Wildlife Society, Monterey, CA. 21 September.	September 2009
Schemmel, E., D. Noakes, S. Clements and C.B. Schreck. 2008. The Effect of Gonadectonty on Hatchery Summer Steelhead (Oncorhynchus mykiss) Behavior: Implications for Hatchery and Wild Interactions. American Fisheries Society Western Division Annual Meeting, Portland OR.	May 2008
Schemmel, E., C.B. Schreck and D. Noakes. Using EMG Telemetry to Assess Relative Activity and Habitat Use of Over-Summering Steelhead. The Oregon Chapter of The American Fisheries Society 45th Annual Meeting.	February 2009
Scheerer, P.D., J.T.Peterson, and S. Clements. 2015. An Evaluation of the Efficiency of Minnow Traps for Estimating the Abundance of Minnows in Desert Spring Systems. 7th Annual meeting of the Desert Fishes Council Annual Meeting, Death Valley National Park, CA.	November 2015	. We evaluated the efficiency of baited minnow traps for estimating the abundance of two ESA listed species, Foskett speckled dace (Rhinichthys osculus ssp.) and Borax Lake chub (Gila boraxobius) in desert spring systems in southeastern Oregon. We estimated capture and recapture probabilities using the Huggins closed-capture estimator and compared the abundance estimates with the commonly used Lincoln-Petersen estimator.
Sanders, A., S.White, G. Giannico, and J. Peterson. 2025. Dispatches from the 2024 OHRC Hatchbox Workshop. American Fisheries Society Oregon Chapter 61st Annual Meeting, Feb 25-28, Bend Oregon.	February 2025	We organized a session to hear about case studies on the existing use of hatchboxes, followed by another session with NOAA fisheries scientists who elaborated on the potential ecological and genetic risks based on extensive hatchery/wild fish research. At the end of the workshop, we split into groups to discuss what was learned among participants, which was recorded by notetakers and summarized in a larger group discussion.
Saenz, J. and J.T. Peterson. 2016. An adaptive decision-support tool for the conservation of least chub. 2016 Annual Meeting of the Western Division of the American Fisheries Society, Reno.	March 2016	We present a case study on the development of a decision support tool for least chub (Iotichthys phlegethontis) populations in western Utah. The decision model is a spatially explicit patch dynamics model that tracks the reproduction and persistence of least chub in response to variation in water levels, vegetative structure, and ungulate grazing.
Saenz, J. and J.T. Peterson. 2015. The use of dynamic multi season occupancy models in the conservation of desert fishes. 7th Annual meeting of the Desert Fishes Council Annual Meeting, Death Valley National Park, CA.	November 2015	This presentation illustrates the development of an adaptive framework for managing least chub in desert wetlands.
Saenz, J. and J.T. Peterson. 2014. An adaptive framework for managing least chub in aridland wetlands. Annual Meeting of the Western Division of the American Fisheries Society, April 7-11, Mazatlan, MX.	April 2014	This presentation illustrates the development of an adaptive framework for managing least chub in desert wetlands.
Saenz, J. and J.T. Peterson. 2014. An adaptive framework for managing least chub in aridland wetlands. Annual Meeting of the Oregon Chapter of the American Fisheries Society, February 25-28, Eugene OR.	February 2014	This presentation illustrates the development of an adaptive framework for managing least chub in desert wetlands.
Saenz, J. and J.T. Peterson. 2013. An Adaptive Framework for Managing Least Chub in Aridland Wetlands. EPA Region 8 Wetland Capacity Building Workshop September 24 - 27, Salt Lake City, Utah.	September 2013	We developed an adaptive management framework for conserving at risk species in aridland wetlands.
Saenz, J. and J. Peterson 2013.THE USE OF DYNAMIC MULTI SEASON OCCUPANCY MODELS IN THE CONSERVATION OF DESERT FISHES. Annual meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	This work will be used to parametrize a decision model for evaluating and comparing conservation actions.
S. van de Wetering, B.J. Clemens and C.B. Schreck. 2008. Building a Conceptual Model to Describe the Effects of Stream Temperatures on Pacific Lamprey, Entosphenus tridentata, Distribution and Population Success in Western Oregon. International Congress on the Biology of Fish, Portland OR.	July 2008
S. Clements, C.B. Schreck, M. Karnowski, and D. Jepsen. 2002. Does size matter?: We have the answer: a comparison of the behavior of juvenile salmonids in a large and small estuary; (Disclaimer: we don't really have the answer but we have some ideas). Oregon Chapter of the American Fisheries Society, Sunriver OR.	February 2002
Rowe, J., A. Duarte, M.J. Adams, C.A. Pearl, and J.T. Peterson. 2017 “Factors influencing coexistence of native amphibians with invasive bullfrogs in the Willamette Valley, OR. Society for Northwestern Vertebrate Biology Annual Meeting. 27 February – 3 March 2017., Arcata, CA.	March 2017	We evaluated the factors influencing co-existence of multiple amphibian taxa.
Roumasset, A., C.C. Caudill, R. Mann, M.L. Keefer, C.B. Schreck and M. Kent. Effects of temperature, condition and disease on pre spawn survival in upper Willamette River Chinook Salmon. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
Rose, I.C., D.D. Roby, A.E. Gall, L.M. Sheffield, and D.B. Irons. Sea ice extent and current dynamics influence diet and productivity of planktivorous auklets on the Berin Shelf. Joint annual meeting of the Pacific Seabird Group and The Waterbird Society, Portland OR.	January 2005
Rose, I.C., D.D. Roby, A.E. Gall, L. Sheffield, and D.B. Irons. The decline of Themisto amphipods and other observations from seabird diet data on St. Lawrence Island AK. GLOBEC Symposium on climate variability and sub-arctic marine ecosystems, Victoria BC Canada.	May 2005
Romito, A.M., M.J. Conroy, and J.T. Peterson. 2012. Interagency and cross-jurisdictional management challenges in formal decision analysis: 2 case studies involving the management of sea otters and brown bears in Alaska. The Adaptive Management Conference Series. Ithaca, NY.	June 2012
Romito, A.M., J.T. Peterson, M.J. Conroy, N. Nibbelink. 2012. Structured decision making for linking inter-agency monitoring to management: A case study using National Park Service inventory and monitoring of sea otters in Southwest Alaska Network Park Units. The Annual meeting of the Wildlife Society. Portland, OR. (Poster)	October 2012
Romito, A.M., J.T. Peterson, M.J. Conroy and N. Nibbelink. 2012. Adaptive resource management for linking interagency monitoring and management: A case study using NPS Inventory and monitoring of Southwest Alaska sea otter populations. Annual meeting of the Alaska Chapter of the Wildlife Society. Anchorage, Alaska.	April 2012
Romer, J.D., C.A. Leblanc, S. Clements, D. Noakes and C.B. Schreck. Monitoring Estuarine Survival of Steelhead Trout (Oncorhynchus mykiss) Smolts in the Nehalem and Alsea Basins, Oregon using Acoustic Telemetry. Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February.	February 2010
Romer, J., C. LeBlanc, C. Schreck, D. Noakes and S. Clements. Monitoring Behavior and Condition of Steelhead Smolts in Two Small Oregon Estuaries using Acoustic Telemetry. 8th International Workshop on Smoltification, Corvallis OR.	September 2009
Rodnick, K.J., R.S. Farrar, G.W. Feist, and C.B. Schreck. 2006. Sex matters: differential effects of steroid hormones and extracellular glucose on cardiac tissue from male and female rainbow trout. 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Rockweit, JT, KM Dugger, DB Lesmeister, RJ Davis, AB Franklin, and JM Higley. 2024. Nuanced Impact of Wildfire on a Critically Imperiled, Old-forest Species. Annual Conference of the Oregon Chapter of The Wildlife Society, February 14-16, 2024, Hood River, OR.	February 2024	We assessed wildfire regime change by coupling long-term northern spotted owl demographic and wildfire severity data in a multi-state survival framework. Our results indicted no negative population-level effects of wildfire on spotted owls, but important negative individual-level effects. This research highlights the importance of understanding nuanced responses of spotted owls to large-scale disturbance.
Rockweit, JT, KM Dugger, DB Lesmeister, RJ Davis, AB Franklin, and JM Higley. 2024. Changing Fire Regimes and Nuanced Impacts to Northern Spotted Owls. 31st Annual Meeting of The Wildlife Society, October 19-23, 2024, Baltimore, MD.	October 2024	We assessed wildfire impacts to northern spotted owls by coupling long-term northern spotted owl demographic and wildfire severity data in a multi-state survival framework. Our results indicted no negative population-level effects of wildfire on spotted owls, but important negative individual-level effects. This research highlights the importance of understanding nuanced responses of spotted owls to large-scale disturbance.
Rockweit, JT, KM Dugger, DB Lesmeister, RJ Davis, AB Franklin, JM Higley. 2023. Using long-term demographic data as an ecological indicator of changing disturbance regimes. The Wildlife Society's 30th Annual Conference, November 5-9, 2023, Louisville, KY.	November 2023	We assessed wildfire regime change by coupling long-term northern spotted owl demographic and wildfire severity data in a multi-state survival framework. Our results indicted no negative population-level effects associated, but important negative individual-level effects of wildfire on spotted owls.
Rockweit, JT, KM Dugger, DB Lesmeister, RJ Davis, AB Franklin, JM Higley. 2023. Fire, northern spotted owls, and old forests in the Pacific Northwest. 2023 Annual Meeting of the Ecological Society of America, August 6-11, 2023, Portland, OR.	August 2023	We found important impacts of wildfire on northern spotted owls along a continuum of burn severity ranging from low to high. Wildfires that produced greater proportions of higher severity fire decreased survival and increased displacement from burned territories for northern spotted owls.
Rockweit, JT, KM Dugger, DB Lesmeister, RJ Davis, AB Franklin, JM Higley, and Z Yang. 2021. Baseline Effects of Wildfire on an Old Forest Species and its Potential to Inform Climate Change Impacts. The Wildlife Society's 28th Annual Meeting, November 1-5, 2021, Virtual.	November 2021	To better understand how spotted owls might be affected by shifting fire regimes, we leveraged data from 6 long-term demographic study areas located throughout fire-adapted forests to examine wildfire effects on population vital rates. Here we report on historical fire effects on northern spotted owls, and how this information might be used by researchers and land managers to begin assessing climate change impacts on the long-term persistence of northern spotted owls.
Rockweit, J.T., D.B. Lesmeister, K.M. Dugger, A.B. Franklin, J.M. Higley, R.J. Davis, and Z. Yang. 2019. A meta-analysis of the impacts of wildfire on the apparent survival, recruitment, and movement rates of northern spotted owls. Oregon Chapter of the Wildlife Society 2019 Annual Meeting, Feb. 27 - March 1, Bend, OR.	February 2019	We utilized long-term mark-recapture data from six study areas in Washington, Oregon and northwest California to assess the impacts of wildfire on the post-fire (2 – 30 years) population dynamics and transition probabilities of northern spotted owls at two spatial scales (i.e., breeding core and territory). Here we present preliminary results of wildfire effects on apparent survival and transition probabilities.
Roby, D.D., and S.W. Kress. Use of social attraction for restoring seabird colonies. Chinese Crested Tern Workshop, Ningbo, People’s Republic of China.	July 2010
Roby, D.D., and S.W. Kress. Use of habitat management and social attraction to restore tern colonies. Chinese Crested Tern Workshop, Fuzhou, People’s Republic of China.	July 2010
Roby, D.D., Y. Suzuki, D.E. Lyons, J. Heinrichs, and N. Schumaker. 2018. Modeling population dynamics of a conservation reliant seabird: Caspian Terns in the Pacific Flyway of North America. 42nd Annual Meeting of the Waterbird Society, Vancouver, B.C., Canada	August 2018	This paper describes the structure and output of a new population model designed to allow the assessment of population responses of Caspian terns in the Pacific Flyway population to various management options. This population of terns has been the object of several recent management initiatives to reduce impacts to survival of ESA-listed salmonid smolts in the Columbia River basin.
Roby, D.D., Y. Lu, D. Chen, S. Chan, X. Zhou, Z. Fan, D.E. Lyons, S. Wang, J. Yang, and S. Chen. 2018. Close colony monitoring uncovers new threats to nesting success in the critically endangered Chinese Crested Tern. International Ornithological Congress 2018, Vancouver, British Columbia, Canada.	August 2018	This presentation describes previously unknown factors limiting the recovery of the critically endangered Chinese Crested Tern that were uncovered by colony monitors who live on the island with the tern breeding colony and monitor nesting success on a daily basis.
Roby, D.D., S.W. Kress, D.E. Lyons, S. Chen, S. Chan, Y. Suzuki, and T.J. Laws. 2015. Conservation Value of Active Seabird Colony Restoration following Rat Eradication on Islands. Symposium on Conservation of Breeding Seabirds on Islands: Control of Predators and Social Attraction, International Wildlife Management Congress, Sapporo, Japan.	July 2015	This presentation investigates the utility of using active seabird colony restoration techniques to enhance recovery and restoration of seabird colonies on islands where rat eradication programs have removed this invasive predator.
Roby, D.D., R.M. Suryan, D.E. Lyons, A.M. Myers, and K. Collis. 2003. Changing ocean conditions and avian predation on juvenile salmonids in the Columbia River estuary. Annual meeting of the Pacific Seabird Group.	January 2003
Roby, D.D., R. Paredes, A. Harding, D.B. Irons, G.V. Byrd, K. Kuletz, and R. Orben. Novel GPS tags provide new insights into foraging strategies of pelagic seabirds at three Bering Sea colonies. 25th International Ornithological Congress, Campos do Jordao, Brazil.	August 2010
Roby, D.D., P.J. Loschl, K. Collis, D.E. Lyons, K.S. Bixler, Y. Suzuki, T.J. Lawes, and A. Turecek. 2017. Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids by Caspian terns nesting at East Sand Island, 2017. Annual Review of the Anadromous Fish Evaluation Program, Richland, WA, 29 November.	November 2017	This presentation provides updates on the monitoring and evaluation of the Caspian Tern breeding colony on East Sand Island during the 2017 breeding season.
Roby, D.D., P.G.R. Jodice, and K.R. Turco. February 2001. Oily fishes, junk foods, and energy shortages: implementations for kittiwake reproduction in the Gulf of Alaska. Pacific Seabird Group Annual Meeting.	February 2001
Roby, D.D., M.B. Naughton, H.R. Carter, D. Pitkin, D. Nysewander, E. Palacios, P.J. Capitolo, G.J. McChesney, F. Gress, T.A. Chatwin, and D.E. Lyons. Gradual recovery and shifting distribution of double-crested cormorants along the Pacific coast from Mexico to Canada. Symposium on the Biology and Management of double-crested cormorants, Quebec City, Quebec, Canada, 15 August 2004.	August 2004
Roby, D.D., K.N, Courtot, J.Y. Adkins, D.E. Lyons, T. Marcella, S. Collar, L. Reinalda, D.T. King, and R.S. Larsen. Cormorant connectivity: post-breeding dispersal of couble-crested cormorants from a large colony a the mouth of the Columbia River. 37th Annual meeting of the Pacific Seabird Group, Long Beach CA.	February 2010
Roby, D.D., K.N, Courtot, J.Y. Adkins, D.E. Lyons, T. Marcella, S. Collar, L. Reinalda, D.T. King, and R.S. Larsen. Cormorant connectivity: post-breeding dispersal of couble-crested cormorants from a large colony a the mouth of the Columbia River. 37th Annual meeting of the Pacific Seabird Group, Long Beach CA	March 2010
Roby, D.D., K. Collis, and D.E. Lyons. Conservation and management for fish-eating birds and endangered salmon. Third International Partners in Flight Conference, 21 March, Asilomar, CA.	March 2002
Roby, D.D., K. Collis, P. Loschl, D. Lyons, Y. Suzuki, T. Lawes, A. Munes, J. Mulligan, E. Schniedermeyer, A. Evans, B. Cramer, A. Turecek, and Q. Payton. 2015. Inland Avian Predation Management Plan: Status of Caspian tern breeding colonies in the Columbia Plateau region, 2015. 2015 Avian Predation Workshop, The Dalles, OR.	November 2015	This paper provides regional fish and wildlife managers an update on the status of management to reduce the impact of Caspian Tern predation on survival of ESA-listed salmonid smolts in the Columbia Plateau region.
Roby, D.D., K. Collis, D.E. Lyons, Y. Suzuki, A. Evans, J.Y. Adkins, L. Reinalda, and M. Hawbecker. 2007. Evaluation of the Impacts on Salmonid Smolts of Avian Predation in the Columbia River Estuary. 2007 Annual Review for the Anadromous Fish Evaluation Program, US Army Corps of Engineers, Walla Walla WA.	December 2007
Roby, D.D., K. Collis, D.E. Lyons, Y. Suzuki, A. Evans, J.Y. Adkins, L. Reinalda, and M. Hawbecker. Bird predation in the estuary: Terns and cormorants rebound after a poor ocean year. Anadromous Fish Evaluation Program Annual Program Review, Portland OR.	November 2006
Roby, D.D., K. Collis, D.E. Lyons, P.J. Loschl, Y. Suzuki, B. Caillouet, O. Bailey, T.J. Lawes, A.F. Evans, B. Cramer, A. Turecek, and Q. Payton. 2017. Caspian Tern Management Plan for the Columbia River Estuary: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids in the Columbia River estuary, 2016. Avian Predation Workshop, U.S. Army Corps of Engineers, The Dalles, Oregon. 2 March.	March 2017	This presentation evaluated the success of management activities on East Sand Island in the Columbia River estuary to reduce the impact of Caspian tern predation on the survival of ESA-listed juvenile salmonids in the estuary.
Roby, D.D., K. Collis, D.E. Lyons, P.J. Loschl, Y. Suzuki, B. Caillouet, O. Bailey, T.J. Lawes, A.F. Evans, B. Cramer, A. Turecek, and Q. Payton. 2016. Caspian Tern Management Plan for the Columbia River Estuary: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids in the Columbia River estuary, 2016. 2016 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	November 2016	This paper provides regional fisheries managers an update on the status of management initiatives to reduce the impact of Caspian tern predation on survival of ESA-listed juvenile salmonids in the Columbia River estuary.
Roby, D.D., K. Collis, D.E. Lyons, P.J. Loschl, T.J. Lawes, Y. Suzuki, K.S. Bixler, A. Piggott, A.F. Evans, B. Cramer, C. Horton, and M. Hawbecker. 2014. Status of Caspian tern breeding colonies at both managed and un-managed sites in the Columbia Basin and at Corps-constructed islands. Avian Predation Workshop, Walla Walla, WA, 3 December 2014. (Invited)	December 2014	This presentation reviews the status of Caspian tern breeding colonies in the Pacific Northwest during the 2014 nesting season, with special emphasis on colonies that are being managed or are located on Corps-constructed islands.
Roby, D.D., K. Collis, D.E. Lyons, K. Fischer, A.M. Myers, A.E. Evans, C. Couch, J.Y. Adkins, S.K. Nelson, and M. Hawbecker. Bird predation in the Columbia River estuary: continued tern management and impending cormorant management. Anadromous Fish Evaluation Program Annual Review, Portland OR.	November 2004
Roby, D.D., K. Collis, D.E. Lyons, D.P. Craig, J.Y. Adkins, A.M. Myers, and R.M. Suryan. February 2002. Effects of colony relocation on diet and productivity of Caspian terns in the Columbia River estuary. Pacific Seabird Group Annual Meeting.	February 2002
Roby, D.D., K. Collis, D.E. Lyons, A.F. Evans, et al. 2011. Avian predation in the Columbia River estuary and monitoring implementation of the Caspian Tern Management Plan. 2011 Annual Review for the Anadromous Fish Evaluation Program, Walla Walla, WA, 29 November. INVITED	November 2011
Roby, D.D., K. Collis, D.E. Lyons, A.F. Evans, Y. Suzuki, P.J. Loschl, A. Peck-Richardson, B. Cramer, J.Y. Adkins, T. Lawes, K.S. Bixler, J. Zamon, D. Kuligowski, and M. Hawbecker. 2013. Ecological developments at the double-crested cormorant colony on East Sand Island: Status, dispersal, management pilot studies, and implications for salmonid restoration. Anadromous Fish Evaluation Program Annual Review, Walla Walla, WA.	December 2013	This study demonstrated that despite a 21% increase in the size of the double-crested cormorant colony on East Sand Island near the mouth of the Columbia River, the largest colony of its kind anywhere, that depredation of salmonid smolts declined in 2013.
Roby, D.D., K. Collis, D.E. Lyons, A.F. Evans, Y. Suzuki, J.Y. Adkins, P.J. Loschl, T. Lawes, N. Hostetter, A. Peck-Richardson, A. Patterson, B. Cramer, S. Collar, K. Bixler, J. Zamon, D. Kuligowski, and M. Hawbecker. AVIAN PREDATION ON JUVENILE SALMONIDS IN THE COLUMBIA RIVER ESTUARY: NEW DEVELOPMENTS IN 2012. Anadromous Fish Evaluation Program Annual Review, Portland, OR.	November 2012	Summarizes research, monitoring and evaluation of avian predation on ESA-listed salmonids in the Columbia River estuary.
Roby, D.D., K. Collis, D.E. Lyons, A. Evans, and J.Y. Adkins. Management of avian predation on juvenile salmonids. Independent Scientific Review Panel, Review of 2012-14 Proposals, Portland, OR.	September 2010
Roby, D.D., K. Collis, D.E. Lyons, A. Evans, Y. Suzuki, P. Loschl, N. Hostetter, J. Adkins, B. Cramer, T. Marcella, M. Correll, M. Hawbeckers, S. Sebring, J. Sheggeby, and J. Tennyson. Current status of the Crescent Island Caspian tern colony and other inland Caspian tern colonies. Inland Avian Predation Working Group Meeting, Portland OR.	January 2010
Roby, D.D., K. Collis, D.E. Lyons, A. Evans, Y. Suzuki, J.Y. Adkins, K.N. Fischer, P.J. Loschl, D.S. Battaglia, T. Marcella, L. Adrean, A. Patterson, B. Cramer, L. Reinalda, C. Wolf, D. Kuligowski, J. Sheggeby, and M. Hawbecker. Avian predation in the Columbia River estuary: monitoring management of Caspian terns and evaluating impacts of double-crested cormorants. Annual Review for the Anadromous Fish Evaluation Program, US Army Corps of Engineers, Walla Walla WA.	December 2009
Roby, D.D., K. Collis, D.E. Lyons, A. Evans, K.N. Fischer, A.M. Myers, C. Couch, J.Y. Adkins, and M. Hawbecker. Avian predation on juvenile salmonids in the Columbia River Basin: an overview. Annual meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	February 2005
Roby, D.D., K. Collis, D. Lyons, P. Loschl, A. Evans, Y. Suzuki, N. Hostetter, J. Adkins, B. Cramer, and J. Tennyson. Status of the Caspian tern colony on Goose Island, Potholes Reservoir. Inland Avian Predation Working Group Meeting, Portland OR.	February 2010
Roby, D.D., K. Collis, D. Lyons, C. Baird, T. Lawes, P. Loschl, Y. Suzuki, A. Piggott, A. Wilson, C. Congdon, A. Evans, B. Cramer, A. Turecek, and Q. Payton. 2015. Caspian Tern Management Plan for the Columbia River Estuary: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids in the Columbia River estuary. 2015 Avian Predation Workshop, The Dalles, OR	November 2015	This paper provides an update to regional fish and wildlife managers about the status of management to reduce the impact of Caspian tern predation on survival of ESA-listed juvenile salmonids in the Columbia River estuary.
Roby, D.D., K. Collis, A.F. Evans, D.E. Lyons, P.J. Loschl, Y. Suzuki, K. Bixler, B. Cramer, M. Hawbecker, and T. Lawes. 2013. Pre-management status of Caspian tern colonies in the Columbia Plateau region: Foraging behavior, connectivity, and reliance on juvenile salmonids. Anadromous Fish Evaluation Program Annual Review, Walla Walla, WA.	December 2013	This study demonstrated that nesting Caspian Terns can commute over 90 km from their nest to depredate juvenile salmonids in the Columbia and Snake rivers on the Columbia Plateau.
Roby, D.D., K. Collis, A.F. Evans, D.E. Lyons, P.J. Loschl, N. Hostetter, K. Bixler, J. Tennyson, K. Dickson, G. Gasper, B. Cramer, Y. Suzuki, M. Hawbecker, and T. Lawes. 2012. Avian predation on juvenile salmonids on the Columbia Plateau: New findings in 2012. Anadromous Fish Evaluation Program Annual Review, Portland, OR.	November 2012	This paper summarizes new information obtained in 2012 regarding avian predation on juvenile salmonids in the Columbia Plateau region.
Roby, D.D., K. Collis, A.F. Evans, D.E. Lyons, P.J. Loschl, N. Hostetter, K. Bixler, J. Tennyson, K. Dickson, G. Gasper, B. Cramer, Y. Suzuki, M. Hawbecker, and T. Lawes. 2012. Avian predation on juvenile salmonids on the Columbia Plateau: New findings in 2012. Anadromous Fish Evaluation Program Annual Review, Portland, OR.	November 2012	Summarized research, monitoring, and evaluation of avian predation on ESA-listed juvenile salmonids in the Columbia Plateau region during 2012.
Roby, D.D., K. Collis, A. Evans, D.E. Lyons, G. Dorsey, C. Couch, S.K. Nelson, M. Hawbecker, J.Y. Adkins, A.M. Myers, and K. Fischer. Assessing the impact of caspian tern predation on juvenile salmonids in the mid-Columbia River. Workshop on avian predation on salmonids in the mid-Columbia River, Kennewick WA.	May 2005
Roby, D.D., J.Y. Adkins, D.E. Lyons, K.N. Courtot, and K. Collis. Double-crested Cormorants in the Pacific Northwest: Status, conservation, and the pressure to control. Fifth North American Ornithological Conference, Vancouver, B.C., 16 August.	August 2012
Roby, D.D., D.P. Craig, D.E. Lyons, and K. Collis. February 2000. Caspian tern management in the Columbia River estuary. Pacific Seabird Group annual meeting.	February 2000
Roby, D.D., D.P. Craig, D.E. Lyons, K. Collis, and J.Y. Adkins. February 2000. Caspian tern management in the Columbia River Estuary. Oregon Chapter of The Wildlife Society annual meeting.	February 2000
Roby, D.D., D.P. Craig, D.E. Lyons and K. Collis. August 2000. Caspian tern conservation and management in the Pacific Northwest: Whose tern is next? 118th Stated Meeting of the American Ornithologists' Union.	August 2000
Roby, D.D., D.E. Lyons, and S. Collar. 2013. Tern restoration in North America. Chinese Crested Tern Training Workshop, Xiangshan, Zhejiang, P.R. China.	March 2013	Described tern restoration research in North America and how the results can be used to restore the critically endangered Chines crested tern.
Roby, D.D., D.E. Lyons, and S. Collar. 2013. Conservation and restoration of tern colonies in North America: Relevance for saving the endangered Chinese crested tern. Plenary Lecture for the China Ornithological Conference, Hangzhou, P.R. China.	November 2013	This paper describes the restoration tools and approaches that were successfully used to restore an abandoned colony of the critically endangered Chinese crested tern in the Jiushan Islands, Zhejiang Province, P.R. China.
Roby, D.D., D.E. Lyons, and S. Collar. 2013. Caspian tern restoration research in North America. Cross-strait Conference on Tern Conservation, Matsu Islands, Taiwan.	July 2013	This paper describes efforts to restore Caspian tern breeding colonies in western North America and provides a blue print for similar restoration efforts for terns in Taiwan and China, especially for the critically endangered Chines crested tern.
Roby, D.D., D.E. Lyons, Y. Suzuki, T. Lawes, P. Loschl, K. Bixler, S.W. Kress, S. Chen, and S. Chan. 2016. Restoring seabird colonies using social attraction: The conservation legacy of Project Puffin. Keynote Lecture at the Willamette Valley Bird Symposium, Corvallis, Oregon.	January 2016	This keynote lecture describes how social attraction techniques were first pioneered in the 1970s to restore seabird colonies on the Gulf of Maine, and how these techniques have since been used worldwide to successfully restore seabird colonies, including colonies of the critically endangered Chinese Crested Tern, perhaps the rarest seabird in the world.
Roby, D.D., D.E. Lyons, Y. Suzuki, S. Collar, K. Collis, and S.W. Kress. 2014. Conservation and restoration of tern colonies in North America. 26th International Ornithological Congress, Tokyo, Japan.	August 2014	Reviews the methods and techniques for managing, conserving, and restoring tern colonies based on pioneering studies conducted in North America.
Roby, D.D., D.E. Lyons, Y. Suzuki, P.J. Loschl, O. Bailey, and T.J. Lawes. 2016. Caspian Tern Management Plan for the Columbia River Estuary: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids. Preliminary overview of 2016 results presented to the Caspian Tern Adaptive Management Team, 28 September, Portland, OR. (Invited)	September 2016	This paper provided regional fish and wildlife managers who are members of the Caspian Tern Adaptive Management Team a status update on implementation of the Caspian Tern Management Plan for the Columbia River Estuary.
Roby, D.D., D.E. Lyons, Y. Suzuki, P.J. Loschl, J.Y. Adkins, S. Collar, T. Marcella, K. Collis, and A.F. Evans. Implementation and adaptation of the Caspian Tern Management Plan for the Columbia River estuary: will it reduce mortality of juvenile salmonids in the estuary? 2010 Columbia River Estuary Conference, Astoria OR.	May 2010
Roby, D.D., D.E. Lyons, Y. Suzuki, J.Y.Adkins, P.J. Loschl, and T.J. Lawes. 2017. Long-term studies of breeding seabirds in the Columbia River estuary: transformative change and responsible forcing factors. Symposium on the Values of Long-Term Studies: Insight & Synthesis, 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation summarized 20 years of research, monitoring, and evaluation of piscivorous seabirds nesting in the Columbia River estuary, and the dramatic changes that have occurred in the community of marine birds in the estuary over the last 40 years. A combination of top-down and bottom-up factors have driven these changes, and resulted in some of the largest breeding colonies in the world for some seabird species.
Roby, D.D., D.E. Lyons, Y. Suzuki, J.Y. Adkins, L.H. Reinalda, and K. Collis. Constraints on Breeding Sites for Colonial Piscivorous Waterbirds: A Root Cause of Seabird-Fisheries Conflicts. 125th Annual Meeting of the American Ornithologists Union, Portland OR.	August 2008
Roby, D.D., D.E. Lyons, Y. Suzuki, J.Y. Adkins, A. Peck-Richardson, P.J. Loschl, and K.S. Bixler. 2016. Cormorants and Threatened Salmon in the Columbia River Estuary: a Management Conundrum. North American Ornithological Conference 2016, Washington, D.C. 16-20 August.	August 2016	This presentation describes the the on-going management of the largest Double-crested Cormorant colony in North America to reduce the impact of cormorant predation on survival of ESA-listed salmonids from throughout the Columbia Basin.
Roby, D.D., D.E. Lyons, T.J. Lawes, Y. Suzuki, K. Bixler, and K. Collis. 2016. Conservation networks of artificial islands for breeding Caspian Terns. 43rd Annual Meeting of the Pacific Seabird Group, Kahuku, Hawaii.	February 2016	This presentation describes how a network of artificial islands and social attraction techniques have been used to develop a network of alternative nesting sites for Caspian Terns whose colony sites are being reduced or eliminated to reduce conflicts with fish species of conservation concern.
Roby, D.D., D.E. Lyons, T.J. Lawes, Y. Suzuki, K. Bixler, and K. Collis. 2015. The keys to successful restoration of tern colonies and their application to recovery of a critically endangered species. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper is one of a group of four papers that will be presented at the PSG meeting related to conservation and restoration of the critically endangered Chinese crested tern. The authors of this paper have been providing technical assistance to the Chinese in their so far very successful restoration effort.
Roby, D.D., D.E. Lyons, T.J. Lawes, P.J. Loschl, A.F. Evans, A. Piggott, K. Collis, and B. Cramer. 2014. Status of Caspian tern breeding colonies at both managed and un-managed sites in the Columbia Basin and at Corps-constructed islands. 2014 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	December 2014	This paper provides a regional overview of the status of Caspian tern breeding colonies in the Pacific Northwest, with special emphasis on those colonies where significant impacts to fish species of conservation concern have been identified.
Roby, D.D., D.E. Lyons, T.J. Lawes, A.F. Evans, K.S. Bixler, and K. Collis. Piscivorous colonial waterbirds: Indicators of aquatic ecosystem health. Malheur NWR Aquatic Health Workshop, Burns, OR, 13 March.	March 2012
Roby, D.D., D.E. Lyons, S.K. Anderson, M. Antolos, C.D. Anderson, R.M. Suryan, S.K. Wright, K. Collis and D.P. Craig. August 2001. Seabirds vs. salmon: Managing Caspian terns in the Columbia River. Invited paper for the Symposium on the Science, Managemetn, and Policy of Seabird Conservation, 119th Stated Meeting of the American Ornithologists' Union.	August 2001
Roby, D.D., D.E. Lyons, S. Collar, and P.J. Loschl. 2015. Top-down and bottom-up influences on large, sympatric colonies of Caspian Terns and Double-crested Cormorants. Symposium on Seabirds as Prey, Second World Seabird Conference, Cape Town, South Africa.	October 2015	This presentation not only demonstrates the importance of top-down factors (predation by eagles and gulls) in limiting the size and nesting success of certain large seabird colonies, but also the synergistic effects of bottom-up factors (food supply) in enhancing those effects.
Roby, D.D., D.E. Lyons, P.G.R. Jodice, K. Collis and R.M. Suryan. Junk food, regime shifts, and nesting failures: sorting out what matters in seabird forage fish dynamics. Symposium on Predator-Prey Dynamics, Joint Annual Meeting of the Northwest Section and the Alaska Chapter of The Wildlife Society, Girdwood AK, 2 May 2004.	May 2004
Roby, D.D., D.E. Lyons, K. Collis, and C.W. Thompson. 2003. Colony restoration techniques for Caspian terns in the Pacific Northwest. Joint regional conference of the Society of Ecological Restoration and the Society of Wetland Scientists.	January 2003
Roby, D.D., D.E. Lyons, K. Collis, Y. Suzuki, A.F. Evans, J.Y. Adkins, P.J. Loschl, T.J. Lawes, K.S. Bixler, A. Patterson, and S. Collar. 2013. An interesting tern of events: Learning from Caspian Terns and other salmon-eating waterbirds about what matters most for coastal colonial seabirds. Plenary talk for the 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	Presents an overview of work on coastal colonial seabird that spans nearly 2 decades and describes the take-home messages for this research, both expected and unexpected.
Roby, D.D., D.E. Lyons, K. Collis, Y. Suzuki, A. Evans, and J.Y. Adkins. 2008. Managing Caspian Terns and Double-crested Cormorants to Enhance Recovery of Threatened Salmonids from the Columbia River Basin. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Roby, D.D., D.E. Lyons, K. Collis, Y. Suzuki, A. Evans, J.Y. Adkins. Using conservation pressure points to stanch ecological hemorrhage: Managing avian predators on threatened salmonids in the Columbia River estuary.	July 2007
Roby, D.D., D.E. Lyons, K. Collis, P.J. Loschl, and A.F. Evans. 2012. Effects of fish-eating birds on Columbia River salmonids. Symposium on Managing Human-Wildlife Conflict in the Pacific Northwest. 19th Annual Conference of The Wildlife Society, Portland, OR, 15 October. [Invited]	October 2012	Summarizes the science behind a major wildlife management issue in the Pacific Northwest.
Roby, D.D., D.E. Lyons, K. Collis, C.W. Thompson, and D.P. Craig. 2002. Colony restoration techniques for Caspian terns in the Pacific Northwest. Annual meeting of the Waterbird Society.	December 2002
Roby, D.D., D.E. Lyons, K. Collis, A. Evans, Y. Suzuki, and J.Y. Adkins. 2008. Quantifying the Magnitude of Smolt Mortality from Avian Predators in the Columbia Basin: It's not one of the 4-H's; What's the Big Deal? Annual meeting of the Western Division of the American Fisheries Society, Portland OR.	May 2008
Roby, D.D., D.E. Lyons, K. Collis and D.P. Craig. February 2001. Management of Caspian tern predation on juvenile salmonids in the Columbia River estuary. Joint annual meeting of the Oregon Chapters of American Fisheries Society and The Wildlife Society.	February 2001
Roby, D.D., D.E. Lyons, J.Y. Adkins, Y. Suzuki, A. Peck-Richardson, P.J. Loschl, K.S. Bxler, and K. Collis. 2015. Population Dynamics and Management of the Western North America Population of the Double-crested Cormorant. Symposium: Towards Sustainable, Knowledge-based Cormorant Management: Combining Learning and Experiences from North America, Europe, and Japan, International Wildlife Management Congress, Sapporo, Japan.	July 2015	The presentation summarizes the status of the western North America population of the Double-crested Cormorant and management plan that is currently being implemented in the Columbia River estuary to enhance survival of ESA-listed salmonids.
Roby, D.D., D.E. Lyons, J.Y. Adkins, Y. Suzuki, A. Peck-Richardson, P.J. Loschl, K.S. Bixler, and K. Collis. 2015. The Western North America Population of Double-crested Cormorants: Beginnings of Management. Symposium on Cormorant Management: Learning from Case Studies in the U.S. and Europe, Lake Biwa Museum, Japan. (Invited)	July 2015	The presentation will outline several options for managing the Double-crested Cormorant population in the Columbia River estuary, where cormorant depredation on ESA-listed salmonids has caused the implementation of a management plan.
Roby, D.D., D.E. Lyons, J.Y. Adkins, Y. Suzuki, A. Peck-Richardson, P.J. Loschl, K.S. Bixler, and K. Collis. 2015. Cormorants and ESA-listed Salmonids in the Columbia River Estuary: the Management Conundrum. Recent Advances in the Biology and Management of Double-crested Cormorants, Waterbirds Society Annual Meeting, Bar Harbor, Maine.	August 2015	The presentation examines the status of the breeding population of Double-crested Cormorants in the Columbia River estuary, the impact of cormorants on survival of ESA-listed salmonids, and how management can reduce this impact.
Roby, D.D., D.E. Lyons, J.Y. Adkins, Y. Suzuki, A. Peck-Richadson, P.J. Loschl, K.S. Bixler, and K. Collis. 2016. Cormorants and ESA-listed Salmonids in the Columbia River Estuary: the Management Conundrum. 50th Annual Meeting of the Oregon Chapter of The Wildlife Society, Seaside, Oregon.	February 2016	This presentation focuses on the scientific background that led up to the implementation of the management plan for double-crested cormorants in the Columbia River estuary.
Roby, D.D., D.E. Lyons, J.Y. Adkins, A. Peck-Richardson, Y. Suzuki, P.J. Loschl, K.S. Bixler, and K. Collis. 2015. Proposal for a major cull of Double-crested Cormorants in the Columbia River estuary: science-based or politics-driven? 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper summarizes the proposed management plan for Double-crested Cormorants nesting on East Sand Island in the Columbia River estuary and describes the scientific basis for this management plan. The proposed management plan draws heavily on the science produced on this topic by the authors during the last 18 years.
Roby, D.D., D.E. Lyons, A.M. Myers, K. Collis, A. Evans, and M. Hawbecker. Predation on juvenile salmonids by Caspian terns and other colonial waterbirds in the lower Columbia River. Annual Review of the Anadromous Fish Evaluation Program, Walla Walla WA, 18 November 2003.	November 2003
Roby, D.D., A.E. Evans, K. Collis, D.E. Lyons, M. Hawbecker, A.M. Myers, G. Dorsey, C. Couch, S.K. Nelson, and J.Y. Adkins. Bird predation on the mid-Columbia River: assessing the magnitude of impacts. Anadromous Fish Evaluation Program Annual Review, Portland OR.	November 2004
Roby, D.D., A. Evans, N. Hostetter, K. Collis, D.E. Lyons, M. Hawbeckers, L. Reinalda, and J.Y. Adkins. 2007. Evaluation of the Impacts of Avian Predation on Salmonid Smolts from the Columbia and Snake Rivers. 2007 Annual Review for the Anadromous Fish Evaluation Program, US Army Corps of Engineers, Walla Walla WA.	December 2007
Roby, D.D., A. Evans, K. Collis, D.E. Lyons, M. Hawbecker, N. Hostetter, L. Reinalda, and J.Y. Adkins. Caspian tern predation on salmonids in the mid-Columbia River: magnitude of impact on survival of ESA-listed stocks. 34th Annual Meeting of the Pacific Seabird Group, Asilomar CA.	February 2007
Roby, D.D., A. Evans, K. Collis, D.E. Lyons, M. Hawbecker, N. Hostetter, L. Reinalda, and J.Y. Adkins. Bird predation on the mid-Columbia River: Relative magnitudes of impacts from Caspian terns and double-crested cormorants. Anadromous Fish Evaluation Program Annual Program Review, Portland OR.	November 2006
Roby, D.D., A. Evans, K. Collis, D.E. Lyons, M. Hawbecker, N. Hostetter, L. Reinalda, and J. Adkins. Caspian tern predation on salmonids in the mid-Columbia River: magnitude of impact on survival of ESA-listed stocks. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Roby, D.D., A. Evans, D.E. Lyons, K. Collis, Y. Suzuki, P.J. Loschl, N. Hostetter, J.Y. Adkins, B. Cramer, T. Marcella, M. Correll, M. Hawbecker, and S. Sebring. Avian predation on mid-Columbia River: colony size and trends for Caspian terns, double-crested cormorants, and other piscivorous waterbirds nesting on the Columbia Plateau. Annual Review for the Anadromous Fish Evaluation program, US Army Corps of Engineers, Walla Walla WA.	December 2009
Roby, D.D., A. Evans, D.E. Lyons, K. Collis, M. Hawbecker, G. Dorsey, C. Couch, S.K. Nelson, J.Y. Adkins, and A.M. Myers. Assessing the impact of Caspian tern predation on juvenile salmonids in the mid-Columbia River. Annual meeting of the Oregon Chapter of The Wildlife Society, Corvallis OR.	February 2005
Roby, D.D. and C.D. Anderson. 2003. Should double-crested cormorants at the expanding colony in the Columbia River estuary be subjected to lethal control? Annual meeting of the Pacific Seabird Group.	January 2003
Roby, D.D. Restoring habitat-limited piscivorous colonial waterbirds at Malheur National Wildlife Refuge. Malheur National Wildlife Refuge Invasive Carp Control Workshop, Burns OR.	March 2010
Roby, D.D. Restoring Chinese crested tern nesting colonies using social attraction. Workshop on the Restoration of the Chinese Crested Tern in China, Xiangshan, Zhejiang, China, 1 March.	March 2012
Roby, D.D. Research, monitoring, and evaluation of avian predation on salmonids in the lower Columbia River. Meeting of the Salmon Advisory Subpanel of the Pacific Fisheries Management Council, Portland OR.	April 2010
Roby, D.D. Research, monitoring and evaluation of avian predation on ESA-listed salmonids in the lower Columbia River. 2010 Cooperative Research Units All-hands Meeting, New Orleans LA.	March 2010
Roby, D.D. January 2000. Legacy of restoration program to date: Pigeon guillemots. Exxon Valdez Oil Spill Restoration Workshop.	January 2000
Roby, D.D. Island building to replace a declining critical habitat resource and restore colonial seabirds. 1st World Seabird Conference, Victoria, B.C., Canada.	September 2010
Roby, D.D. BSIERP Patch Dynamics Study: Summary of results from 2009 field season. BEST-BSIERP Principal Investigator’s Meeting, Girdwood AK.	October 2009
Roby, D.D. 2018. Avian predation on juvenile salmonids. Monthly meeting of the Northwest Power and Conservation Council, Eugene, OR, 11-12 September.	September 2018	This presentation summarizes 22 years of research, monitoring, and evaluation of avian predation on juvenile salmonids in the Columbia River estuary.
Roby, D.D. 2018. Avian predation on juvenile salmonids in the Columbia River basin, a research project status review. Independent Scientific Review Panel and the Northwest Power and Conservation Council, Portland, OR, 27-28 August.	August 2018	This summary and project review was designed to bring the Independent Scientific Review Panel of the Northwest Power and Conservation Council up to date on project accomplishments of research, monitoring, and evaluation on the topic of avian predation on ESA-listed juvenile salmonids in the Columbia River basin.
Roby, D.D. 2017. Restoring tern colonies using social attraction: the crucial role of monitoring. Chinese Crested Tern Conservation Conference, Matsu Islands, Taiwan, 10 November.	November 2017	This presentation summarizes the results of 20 years of attempting to restore tern colonies using social attraction techniques and the crucial role that close colony monitoring played in the success of most of these restoration projects.
Roby, D.D. 2017. Environmental conservation in the United States and the science behind it. Workshop on Environmental Protection and Enforcement, Ministry of Economy and Planning, Riyadh, Kingdom of Saudi Arabia, 13-14 September 2017.	September 2017	This invited lecture on the North American Model for Wildlife Conservation was presented to a workshop organized by the Ministry of Economy and Planning for the Kingdom of Saudi Arabia. The presentation was a keynote lecture for the Workshop for Environmental Police.
Roby, D.D. 2015. Status of Caspian Tern breeding colonies at managed and unmanaged sites in the Columbia Basin and at Corps-constructed islands. Briefing to the Northwest Power and Conservation Council, Portland, OR, 5 May. (Invited)	May 2015	This presentation summarized the status of Caspian tern breeding colonies throughout the Columbia River basin for the Council of governor-appointed managers for the Federal Columbia River Power System.
Roby, D.D. 2012. Summary of predator-prey relationships between piscivorous birds and salmonids in the Columbia River basin. Science and Policy Exchange: Predation in the Columbia River Basin: What are the Management Alternatives?, Northwest Power and Conservation Council, Portland, OR, 9 August.	August 2012
Roby, D.D. Caspian tern and double-crested cormorant predation on Columbia Basin salmonids: a regional perspective. 2007 Mid-Columbia Avian Predation Workshop, Richland Wa.	May 2007
Roby*, D.D., K. Collis, D.E. Lyons, A Evans, Y. Suzuki, J.Y. Adkins, K.N. Fischer, P. Loschl, D.S. Battaglia, L. Reinalda, D. Mercer, L. Adrean, T. Marcella, B. Cramer, F. Mayer, D. Kuligowski, J. Sheggeby, and M. Hawbecker. 2008. Avian predation in the Columbia River estuary: Monitoring management of Caspian terns and evaluating impacts of double-crested cormorants. 2008 AFEP Annual Review, Portland OR, 9 December.	December 2008
Roby*, D.D., K. Collis, D. Lyons, A. Evans, Y. Suzuki, J. Adkins, K. Fischer, P. Loschl, D. Battaglia, L. Reinalda, T. Marcella, D. Mercer, L. Adrean, D. Kuligowski, J. Sheggeby, and M. Hawbecker. 2009. Avian predator populations in the Columbia River estuary. 2009 Mid-Columbia Avian Predator Workshop, Kennewick WA, 10 June.	June 2009
Roby*, D.D., J. Adkins, K. Collis, M. Correll, B. Cramer, A. Evans, M. Hawbecker, N. Hostetter, P. Loschl, D. Lyons, T. Marcella, L. Reinalda, S. Sebring, J. Sheggeby, Y. Suzuki, and J. Tennyson. 2009. Avian predator populations on the mid-Columbia River. 2009 Mid-Columbia Avian Predator Workshop, Kennewick WA, 10 June.	June 2009
Roby*, D.D., D.S. Battaglia, Y. Suzuki, L. Adrean, J.Y. Adkins, T. Marcella, D.E. Lyons, K. Collis, and A. Evans. 2009. Will the Caspian Tern Management Plan for the Columbia River estuary fail or succeed?: Results from the first year of implementation. 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 24 February.	February 2009
Roby*, D.D., D.S. Battaglia, D.E. Lyons, Y. Suzuki, J.Y. Adkins, P.J. Loschl, L.H. Reinalda, and K. Collis. 2009. The Caspian Tern Management Plan: Results after the first year of implementation. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 13 February.	February 2009
Roby*, D.D., A Evans, D.E. Lyons, K. Collis, Y. Suzuki, P. Loschl, N. Hostetter, J.Y. Adkins, B. Cramer, T. Marcella, M. Bockes, M. Hawbecker, and S. Sebring. Avian predation on the mid-Columbia River: Colony sizes and trends for Caspian terns, double-crested cormorants, and other piscivorous waterbirds nesting on the Columbia Plateau. 2008 AFEP Annual Review, Portland OR, 9 December.	December 2008
Roby D.D., K. Collis, A.F. Evans, D.E. Lyons, et al. Avian predation on the Columbia Plateau: A synthesis of research results. 2011 Annual Review for the Anadromous Fish Evaluation Program, Walla Walla, WA, 29 November.	November 2011
Roberts, L.S. and J.T. Peterson. 2025. Optimizing Long-term Species Status Assessment with Environmental DNA: Independence Valley speckled dace (Rhinichthys osculus lethoporus) Conservation. American Fisheries Society Oregon Chapter 61st Annual Meeting, Feb 25-28, Bend Oregon.	February 2025	Here, we assess the feasibility of eDNA for long-term monitoring of the endemic Independence Valley Speckled Dace, <i>Rhinichthys osculus lethoporus</i>, which inhabits the Ralphs Warm Spring wetland complex in Independence Valley, Nevada. We sampled dace using minnow traps paired with eDNA samples at multiple locations within the wetland complex.
Roberts, L.S. and J.T. Peterson. 2024. Integrated Monitoring Strategies for Independence Valley Speckled Dace, Rhinichthys osculus lethoporus,[LR1] Conservation: An Applied Approach for Optimizing Long-term Species Status Assessment. Desert Fishes Council Annual Meeting, Nov 21-23. Grand Junction, Colorado	November 2024	Here, we assess the feasibility of eDNA for long-term monitoring of the endemic Independence Valley Speckled Dace, <i>Rhinichthys osculus lethoporus</i>, which inhabits the Ralphs Warm Spring wetland complex in Independence Valley, Nevada. We sampled dace using minnow traps paired with eDNA samples at multiple locations within the wetland complex.
Rizzolo, D.J., D. Esler, R.L. Jarvis, and D.D. Roby. 2003. Behavioral effects of oil exposure on captive harlequin ducks. Annual meeting of the Pacific Seabird Group.	January 2003
Rivers, J.W., S.K. Nelson, L.J. Adrean, C.A. Horton, D.D. Roby, and M.G. Betts. 2018. An update on the Oregon Marbled Murrelet Project: unexpected results characterize the 2017 breeding season. Joint annual meeting of the Oregon Chapter of The Wildlife Society, the Washington Chapter of The Wildlife Society, the Society for Northwestern Vertebrate Ecology, and the Northwestern Partners in Amphibians and Reptile Conservation, Portland, OR, 13-16 February.	February 2018	This presentation describes the behavior and movements of Marbled Murrelets that were radio-tagged on the central Oregon coast during a poor ocean year (marine heat wave).
Rivers, J.W., J.M. Northrup, M.G. Betts, S.K. Nelson, and D.D. Roby. 2016. Evaluating Space Use and Reproductive Success of the Threatened Marbled Murrelet in Western Oregon. North American Ornithological Conference, Washington, D.C. 16-20 August.	August 2016	This presentation introduces the goals, objectives, and methodological approaches being used in a major new research project designed to assess how forest management practices can enhance recovery of an ESA-listed seabird that nests in late successional forests.
Rivers, J., L. Adrean, M. Pickett, B. Taggart, S.K. Nelson, D.D. Roby, and M. Betts. 2017. Testing whether unmanned aerial vehicles can be used to locate cryptic nests of the Marbled Murrelet. Joint Annual Meeting of the American Ornithological Society and the Society of Canadian Ornithologists/Société des Ornithologistes du Canada, East Lansing, MI, 1-5 August 2017.	August 2017	This presentation described a new method for locating the extremely cryptic nests of Marbled Murrelets, a threatened species under the Endangered Species Act, and a seabird that nests high in old growth forests of the Pacific Northwest.
Ricca, M.L., A.K. Miles and R.G. Anthony. Testing the effect of lipid extraction and content on analysis of stable carbon and nitrogen isotopes in different species and tissues. The Wildlife Society annual conference, Madison WI.	September 2005
Ricca, M.A., R.G. Anthony, D.H. Jackson, and S.A. Wolfe. September 2001. Comparative ecology of Columbian white-tailed deer in suburban and wild landscapes. Poster Presentation. 8th Annual Conference of The Wildlife Society.	September 2001
Ricca, M.A., R.G. Anthony, D.H. Jackson, and S.A. Wolfe. February 2000. Habitat associations of adult Columbian white-tailed deer in western Oregon. Oregon Chapter of The Wildlife Society annual meeting.	February 2000
Ricca, M.A., R.G. Anthony and A.K. Miles. 2004. Diets of bald eagles in the Aleutian Islands Alaska. The Wildlife Society anuual conference, Calgary, AB, Canada.	January 2004
Ricca, M.A, R.G. Anthony and A.K. Miles. Bald eagle food habits relative to the sea otter decline in the Aleutian Archipelago, Alaska, Western Section, The Wildlife Society, Sacramento CA, 7 April 2004.	April 2004
Reinkensmeyer, D.P., R.G. Anthony, and R.F. Miller. February 2001. Habitat association of bird communities in shrubsteppe and western juniper woodlands. Joint annual meeting of the Oregon chapter of The Wildlife Society and American Fisheries Society.	February 2001
Reinalda, L.H., D.D. Roby, D.E. Lyons, J.Y. Adkins, K. Collis, and A. Evans. Stealing from the mouths of babes: gull kleptoparasitism rates and the effect on tern colony size and productivity. 34th Annual Meeting of the Pacific Seabird Group, Asilomar CA.	February 2007
Rearden, S.N., R.G. Anthony and B.J. Johnson. Elk calf survival in northeastern Oregon: preliminary results. Annual meeting of the Oregon chapter of The Wildlife Society, Corvallis OR.	February 2005
Ramsay, J.M., M.L. Kent and C.B. Schreck. 2008. Small Fish Crowded in a Tank: Husbandry Stress and Diseases of Zebrafish. International Congress on the Biology of Fish, Portland OR.	July 2008
Ramsay, J.M., M.L. Kent and C.B. Schreck. 2007. Stress, cortisol and diseases of adult zebrafish. 37th Western Regional Conference on Comparative Endocrinology, San Juan Island, WA.	September 2007
Ramsay, J.M., G.W. Feist, Z. Varga, M. Westerfield, M.L. Kent, and C.B. Schreck. 2006. Cortisol response of zebrafish: an indicator of crowding and handling stress. 7th International Congress on the Biology of Fish, St. John?s, Newfoundland, Canada.	October 2006
Ramsay, J.M., G.W. Feist, Z. Varga, M. Westerfield, M.L. Kent and C.B. Schreck. 2006. Got stress: environmental stressors in a fish model organism. 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Ramsay, J.M., G.W. Feist, Z. Varga, M. Westerfield, J.L. Matthews, M.L. Kent and C.B. Schreck. 2005. Whole-body cortisol as an indicator of crowding stress in adulta zebrafish (Danio rerio). Oregon Chapter of the American Fisheries Society 41st annual meeting, Corvallis OR.	February 2005
Ramsay, J.M., G.W. Feist, M. Westerfield, Z. Varga, M.L. Kent, and C.B. Schreck. 2006. Husbandry stress and the cortisol response of adult zebrafish. Western Regional Conference on Comparative Endocrinology, Newport, OR.	October 2006
Ramsay, J.M., G.W. Feist, C.B. Schreck, C.M. Whipps, V.G.Watral, and M.L. Kent. 2006. Husbandry stress and Mycobacterium marinum infection adult zebrafish. 5th International Symposium on Aquatic Animal Health, San Francisco, CA.	October 2006
Ramsay, J.M., C.B. Schreck, and M. Kent. 2007. Husbanrdy stress and diseases of zebrafish, Danio rerio. World Aquaculture Society Annual Meeting, San Antonio, TX.	September 2007
Ramsay, J., G.W. Feist, Z. Varga, M. Westerfield, M.L. Kent, and C.B. Schreck. 2006. Cortisol response of zebrafish: an indicator of crowding and handling stress. Western Regional Conference on Comparative Endocrinology, Newport, OR.	October 2006
Prybil, A., S. Parker, cand C.B. Schreck. 2006. Recovery from barotrauma in black rockfish (Sebastes melanops). Western Groundfish Conference, Newport, OR.	October 2006
Pruitt, W.A., J.T. Peterson, C.A. Jennings. Use of Hierarchical Models to Estimate Seasonal Habitat Use of Stocked Robust Redhorse in the Upper Reaches of the Ocmulgee River, GA. Georgia Chapter, American Fisheries Society annual meeting. Macon, Georgia. February 7-9, 2012.	February 2012
Pruitt, W.A., J.T. Peterson, and C.A. Jennings. 2013. Use of occupancy models to determine seasonal distribution and habitat use of stocked robust redhorse in the Ocmulgee River, Georgia. Spring Meeting of the Southern Division - American Fisheries Society. February 7-10, 2013. Nashville, TN	February 2013	The research established the occupancy of reintroduced robust redhorse stocked as part of a Candidate Conservation Agreement with Assurances aimed at establishing a refugial population of this imperiled species. Occupancy rates in the study reach was low. The sites most likely to be occupied by the species also were sites that could not be sampled adequately with conventional gear.
Pruett, S., R.J. Davis, K.M. Dugger, J. Jenkins, D. Lesmeister, S. Sovern. 2018. ASSESSING NORTHERN SPOTTED OWL NEST-SITE SELECTION WITH A LIDAR-BASED CANOPY COVER MODEL . oint annual meeting of the Oregon Chapter of The Wildlife Society, the Washington Chapter of The Wildlife Society, the Society for Northwestern Vertebrate Ecology, and the Northwestern Partners in Amphibians and Reptile Conservation. Portland, OR, Feb 13-16, 2018.	February 2018	We investigated habitat selection by northern spotted owls using LiDAR data and spotted owl nest and roost location data in a Bayesian analytical framework to quantify the structural characteristics of spotted owl nest sites. Despite displacement from historic territories by barred owls, spotted owls continue to demonstrate strong selection for mature, structurally diverse forest types.
Pruett, S., R.J. Davis, K.M. Dugger, J. Jenkins, D. Lesmeister, S. Sovern. 2017. Using LiDAR Data and a Bayesian Framework to Model Northern Spotted Owl Nest Site Selection . The Joint Meeting of the American Ornithological Society and the Society of Canadian Ornithologist/Société des Ornithologistes du Canada, East Lansing, MI, July 31-August 5, 2017.	July 2017	We investigated habitat selection by northern spotted owls using LiDAR data and spotted owl nest and roost location data in a Bayesian analytical framework to quantify the structural characteristics of spotted owl nest sites. Despite displacement from historic territories by barred owls, spotted owls continue to demonstrate strong selection for mature, structurally diverse forest types.
Pribyl, A.L., S.J. Parker, and C.B. Schreck. 2007. Extreme expansion: rockfish who take it to the edge. 43rd Annual Meeting of the Oregon Chapter of the American Fisheries Society, Eugene, OR.	September 2007
Pribyl, A.L., S.J. Parker, and C.B. Schreck. 2007. Extreme expansion: rockfish who take it to the edge. 37th Western Regional Conference on Comparative Endocrinology, San Juan Island, WA.	September 2007
Pribyl, A.L., S.J. Parker, and C.B. Schreck. 2006. Recovery from Barotrauma in black rockfish (Sebastes melanops). 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Pribyl, A.L., S.J. Parker and C.B. Schreck. 2008. Got Gas? Try Recompression! Western Groundfish Conference.	December 2007
Pribyl, A., and C. Schreck. Got Gas in Your Genes? Try these Biomarkers! Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR.	February 2010
Pribyl, A., S. Parker and C.B. Schreck. To be with Barotrauma or not to be with Barotrauma? A Physiological Survey of Six Rockfish Species. The Oregon Chapter of The Fisheries Society 45th Annual Meeting.	February 2009
Ponce Velez, R, K Carey, and MJ Davis. 2024. Small streams, big macs: can macroinvertebrate biodiversity explain reductions in redband trout abundance and distribution in the Goose Lake Basin? 154th Meeting of the American Fisheries Society, Honolulu, Hawaii.	September 2024	This work highlights the importance of specific macroinvertebrate prey communities in relation to redband trout abundance and distribution in an endorheic basin.
Pollock, A., et al. (2017). Caudal fin differences between juvenile wild, hatchery, and surrogate Chinook salmon. Oregon Chapter for American Fisheries Society, Bend, OR. Feb 28-March 3.	February 2017	We determined that juvenile Chinook salmon reared in the surrogate experimental environments had caudal fins more similar to the naturally-reared Chinook salmon. Surrogate and naturally-reared juveniles generally possess caudal fins with larger surface areas, longer caudal lobes, and greater symmetry between dorsal and ventral lobes than the caudal fins of juvenile hatchery Chinook salmon.
Pirhonen, J., C.B. Schreck, and P.W. Reno. August 2000. Effect of seawater entrance on feeding and growth of steelhead smolts. International Fish Biology Congress.	August 2000
Pirhonen, J., C.B. Schreck, and P. Reno. January 2000. Correlations between feed intake, fish size, plasma ions and muscle water in steelhead smolts in freshwater and seawater. 21st Smolt Workshop Smoltification: Changing Perspectives in Research & Management.	January 2000
Pirhonen, J., C.B. Schreck, A. Gannon, P.W. Reno, and H. Ogut. January 2000. Effect of food deprivation on BKD and furunculsis. Oregon Chapter, American Fisheries Society.	January 2000
Pirhonen, J., C.B. Schreck, A. Gannon, P.W. Reno, and H. Ogut. August 2000. Effect of food deprivation on BKD and furunculsis. International Fish Biology Congress.	August 2000
Piggott, A.R.H., D.E. Lyons, and D.D. Roby. 2014. Dietary overlap and coexistence of two sympatric piscivorous seabirds: Competition or superabundant prey? 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	The study demonstrated considerable dietary overlap between the two most abundant piiscivorous colonial waterbirds in the Columbia River estuary in most years, but there was no relationship between degree of dietary overlap and nesting success, suggesting prey were superabundant.
Piggott, A.R., S.B. Stark, B.R. Higgins, D.B. Irons, and D.D. Roby. 2017. Beggars can't be choosers: successful breeding on a poor quality diet. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation describes the remarkable start to recovery of the Pigeon Guillemot breeding population on the Naked Island Archipelago following control of introduced mink on the islands. Despite poor ocean conditions, guillemots had unusually high nesting success while feeding their young mostly juvenile lingcod, generally considered a low-quality forage fish.
Piggott, A.R., D.E. Lyons, Y. Suzuki, K. Bixler, B. Cramer, A. Turecek, A. Laws, and D.D. Roby. 2015. Nest-site fidelity at the largest breeding colony of Double-crested Cormorants (Phalacrocorax auritus) in North America. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper demonstrates the fidelity of breeding double-crested cormorants to specific nesting sites within a much larger area of nesting birds within the breeding colony.
Piggott, A.R., D.E. Lyons, J.M. Lawonn, K.S. Bixler, M.J. Hipfner, and D.D. Roby. 2016. NOVEL PREY IN SEABIRD DIETS: INDICATORS OF CLIMATE REGIME SHIFTS. 43rd Annual Meeting of the Pacific Seabird Group, Oahu, Hawaii.	February 2016	This presentation describes unusual forage fishes that have recently appeared in the diets of piscivorous waterbirds nesting at the mouth of the Columbia River concurrent with a ocean climate regime shift in the California Current System.
Peterson,J.T., M.C. Freeman, J. LaFontaine, R.B. Jacobson, C. Elliott, L.E. Hay, and J.W. Jones. 2011. Using Structured Decision Making and Adaptive Management to Reduce Critical Uncertainties in Water Resource Decisions: Examples from ACF Basin. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle, WA. (INVITED).	September 2011
Peterson,J.T., M.C. Freeman, J. LaFontaine, L.E. Hay, J.W. Jones, R.B. Jacobson, C. Elliott, and W.B. Hughes 2011. An Evaluation of the Influence of Fragmentation on Stream Fish Communities Using Spatially-Explicit Metapopulation Models. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle, WA. (INVITED).	September 2011
Peterson, J.T.,T. Neal, M. Kent, J. Sanders, and C. Schreck. 2019. Effects stressors on survival and dam passage of juvenile chinook salmon: implications for juvenile fish passage. Willamette Fisheries Science Review, Corvallis OR, February 12-13.	February 2019	We developed a laboratory infection method, documented pathological changes associated with infection, and evaluated the performance and survival of infected juvenile Chinook salmon in response to stresses. We used a fractional factorial experimental design to evaluate the effect of copepodid (juvenile copepods) density, water temperature, and stress (tank size) on the prevalence and intensity of infection of fishes exposed to copepodids
Peterson, J.T., and M.C. Freeman. 2016. Integrating Modeling, Monitoring, and Management to Reduce Critical Uncertainties in Water Resource Decision Making. 52nd Annual Meeting of American Fisheries Society Oregon Chapter. March 1-4, Seaside, Oregon	March 2016	We developed an adaptive framework that integrates a dynamic, multi species metapopulation model developed to assess effects of streamflow alteration on fish occupancy in a southeastern US stream system with an occupancy based monitoring protocol.
Peterson, J.T., M. Barajas, J.T. DeWeber. 2018. Multistate occupancy modeling for Longfin Smelt. Biennial Bay-Delta Science Conference, Sacramento, CA.	September 2018	We used multistate occupancy estimators to evaluate the distribution, abundance, and detection probability of Longfin Smelt collected during 1995-2015 with three long-term surveys. We found that detection was generally low and the surveys underestimated occupancy and abundance up to 45%.
Peterson, J.T., J. Sanders, T. Neal, M. Kent and C. Schreck. 2020. The Willamette Copepod Research Program: Infection experiments and impacts on juvenile Chinook salmon. Willamette Fisheries Science Review, Corvallis OR, February 11-12	February 2020	We developed a laboratory infection method, documented pathological changes associated with infection, and evaluated the performance and survival of infected juvenile Chinook salmon in response to stresses. We used a fractional factorial experimental design to evaluate the effect of copepodid (juvenile copepods) density, water temperature, and stress (tank size) on the prevalence and intensity of infection of fishes exposed to copepodids
Peterson, J.T., J. Kirsch, A. Duarte, D. Barnard, A. Goodman, L. Smith, S. Hugentobler, M. Meek, J. Julienne, R. Perry, C. Phillis, and J. Stewart. 2022. Determining the effects of environmental variables, misidentification and incomplete detection on juvenile winter-run Chinook Salmon occupancy data used to inform water operation decisions in the Central Valley of California. 152 American Fisheries Society Annual Meeting, August 21-25, Spokane WA.	August 2022	We assessed the effect of environmental conditions along with false negative (undetected) and false positive (misidentified) error on juvenile winter-run Chinook salmon occupancy by fitting data collected at the nine sites monitored during 1996 to 2019 using hierarchical multi-state occupancy models.
Peterson, J.T., E. Gardner, T. Neal, M. Larson,Couch, C.E., J.D. Romer, F. Monzyk, M. Kent, and C.B. Schreck. 2024. Unexpected Threats: Parasite Infections in Reservoir-rearing Juvenile Chinook Salmon in Willamette Basin Reservoirs. Oregon Lake Association Annual Conference. Nov 15- 16, Corvallis OR	November 2023	There was also evidence of parasite associated host mortality for reservoir-rearing Chinook salmon associated with severe infection loads of both parasite species. Laboratory studies further indicated that gill damage caused by juvenile stages of <i>S. californiensis</i> negatively affected the ability of juvenile to osmoregulate when exposed to saltwater up to four months post infection.
Peterson, J.T., E. Gardner, T. Neal, Larson, M., C. Couch, J. Romer, F. Monzyk, M. Kent, and C. Schreck 2023.Unexpected Threats: Parasite Infections in Reservoir-rearing Juvenile Chinook Salmon in Willamette Basin Reservoirs. Oregon Lakes Association annual conference Nov 15-16, Corvallis, OR.	March 2023	We found that these reservoir-rearing juvenile salmon can be severely infected by the ectoparasite Salmincola californiensis and a parasitic nematode, Philonema spp
Peterson, J.T., C.P Paukert, A.E. Rosenberger, S.K. Brewer. 2015. Standardized sampling: a call for gear calibration. 145th Annual Meeting of the American Fisheries Society, August 16-20, Portland OR.	August 2015	We describe alternative gear calibration techniques, provide estimates of sampling efficiency for several sampling techniques, and highlight the techniques with insufficient gear efficiency information.
Peterson, J.T., C. Paukert, H. Giacomini, and D.T. de Kerckhove. 2024. Converting Non-Standard Data to Standardized Data for Freshwater Fisheries 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	Fishery biologists spend considerable effort collecting data on fish populations and community status using a particular sampling method. However, new (and often more effective) sampling methods and technologies are continuously being developed. We focused on factors that affect bias on fish sampling gear on species catch and detection and if the conversion of nonstandard data is appropriate.
Peterson, J.T., A.M. Romito, M.J. Conroy. 2014.Structured Decision Making for Brown Bear Management on National Park Service Lands in Alaska. International Association for Landscape Ecology 2014 Annual Symposium, May 18-21, Anchorage Alaska.	May 2014	We developed an SDM framework and models for managing brown bears on NPS lands in AK.
Peterson, J.T., A. Duarte, and K. McDonald. 2019. Transitioning the CVPIA fisheries program to a science-based prioritization and adaptive management process….progress? 55th Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, Bend, OR.	March 2019	Here we describe a structured, multi-phase approach that allowed decision-makers to identify program objectives and guide planning of broad-scale fisheries restoration activities. We emphasize the importance of using a rapid prototyping process and following up with the development and adherence to a transparent governance framework and decision making process.
Peterson, J.T., 2017. The development of a structured adaptive approach to prioritizing conservation and restoration of Chinook Salmon in the Central Valley. 35th Annual Salmonid Restoration Conference, March 29-April 1, Davis, CA.	March 2017	Central Valley Project Improvement Act Fisheries Program is employing structured decision making to develop a framework that allows stakeholders and decision-makers to identify program objectives and guide planning of broad scale fisheries activities. Program stakeholders on the Science Integration Team (SIT) identified Chinook Salmon (Oncorhynchus tshawytscha) population objectives and developed a coarse resolution model that was parameterized using a combination of expert judgment and empiric
Peterson, J.T. and M.C Freeman. 2013.Integrating Modeling, Monitoring, and Management to Reduce Critical Uncertainties in Water Resource Decision Making. 143nd Annual Meeting of the American Fisheries Society, September 8-12, Little Rock AR.	September 2013	This study developed an adaptive management framework and models to assist managers in water resource decision-making.
Peterson, J.T. and K. Boomer. 2015. Integrating multiple models, monitoring, and management to reduce uncertainties and improve wetland restoration decision making in Chesapeake Bay watersheds. . 23rd Biennial Conference of the Coastal and Estuarine Research Federation, Portland OR.	November 2015	We demonstrate this adaptive approach to water quality improvement in Chesapeake Bay. We used six alternative models of wetland retention efficiency to predict retention of total nitrogen, phosphorous, and suspended sediment at nearly 40,000 potential restoration sites in the Pocomoke River watershed.
Peterson, J.T. and J. Sáenz. 2019. State dependent management of desert spring fish and their habitats. 55th Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, Bend, OR.	March 2019	To aid the desert wetland managers, we identified management objectives, alternative actions, and developed a probabilistic decision model that simulates desert wetland dynamics including Least Chub reproduction and persistence in response to variation in water levels, vegetative structure, and ungulate grazing. We solved the decision model using stochastic dynamic programming and identified optimal state dependent policies. Forward simulation suggested that implementing the state-dependent po
Peterson, J.T. and J. Pease. 2019. Integrated tools for identifying optimal flow regimes for recovering spring Chinook Salmon in the Willamette River, Oregon. Annual Meeting of the American Fisheries Society, Reno NV.	September 2019	The Oregon Department of Fish and Wildlife has pit tagged juvenile Chinook Salmon in the Willamette Basin for the past 20 years. Individuals are later resighted at PIT-tag interrogation stations, recaptured during seining efforts, or recovered in the estuary. Using a multi-state recapture-resight-recovery model, we estimated annual juvenile Chinook Salmon growth, survival, and movement in response to changes abiotic or biotic factors.
Peterson, J.T. and C.P. Shea. 2012. AN INTEGRATED DECISION MODELING APPROACH FOR ESTIMATING THE RESPONSE OF MUSSEL POPULATIONS TO HYDROLOGIC ALTERATION IN THE SOUTHEASTERN U.S. Annual Meeting of the Society for Northwestern Vertebrate Biology, March 20-22, Hood River OR. (INVITED)	March 2012
Peterson, J.T. and A. Duarte. 2025. Does borrowing information improve rotary screw trap estimates of juvenile salmon production? American Fisheries Society Oregon Chapter 61st Annual Meeting, Feb 25-28, Bend Oregon.	February 2025	In this study, we evaluate the efficacy of borrowing information across years and locations, as well as incorporating covariates, to improve the estimation of RST efficiency and juvenile salmon production. Using long-term datasets, we assessed the accuracy of both established linear spline models and novel autoregressive models for estimating juvenile production during within-season gaps in RST operation.
Peterson, J.T. and A. Duarte. 2024. Structured decision making and adaptive management with the Central Valley Project Improvement Act fisheries program…progress? 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	Here we describe a structured, multi-phase approach that allowed decision-makers to identify program objectives and guide planning of broad-scale fisheries restoration activities. We emphasize the importance of using a rapid prototyping process and following up with the development and adherence to a transparent governance framework and decision-making process.
Peterson, J.T. and A. Duarte. 2021. Decision Analysis to Identify Optimal State-Dependent Restoration Policies for Chinook Salmon11th Biennial Bay-Delta Science Conference, April 6-9, 2021	April 2021	We will describe the Chinook salmon (<i>Oncorhynchus tshawytscha</i>) decision‐support models developed by the Central Valley Project Improvement Act Science Integration Team as part of a larger structured decision‐making effort aimed at maximizing natural adult production of Chinook salmon in California's Central Valley.
Peterson, J.T. Pease, JE. L. Whitman, J. White, L. Stratton Garvin, S. Rounds, and R. Wallick. 2022. Willamette Instream Flow Project: Integrated Tools For The Evaluation Of Alternative Flow Management Strategies. Annual Willamette Fisheries Science Review , April 12-13, Corvallis OR.	April 2022	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
Peterson, J.T. Pease, JE. L. Whitman, J. White, L. Stratton Garvin, S. Rounds, and R. Wallick. 2021. Willamette Instream Flow Project: Integrated Tools For The Evaluation Of Alternative Flow Management Strategies. Oregon Chapter of the American Fisheries Society Annual Meeting, March 3-5	March 2021	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
Peterson, J.T. Pease, JE. L. Whitman, J. White, L. Stratton Garvin, S. Rounds, and R. Wallick. 2020. Willamette Instream Flow Project: Integrated Tools For The Evaluation Of Alternative Flow Management Strategies. Willamette Fisheries Science Review, Corvallis OR, February 11-12	February 2020	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
Peterson, J.T. 2017. Integrating multiple models, monitoring, and management to reduce uncertainties and improve water resource management decision making. Society for Freshwater Science Annual Meeting, June 4-8, 2017, Raleigh, NC.	June 2017	I demonstrate this adaptive approach to water resource management in the southeastern US. I used 8 alternative models of metapopulation dynamics to evaluate alternative water development strategies.
Peterson, J.T. 2016. Salmon Population Model and linkage to Structured Decision-Making. 2016 Bay-Delta Science Conference, Sacramento CA.	October 2016	Central Valley Project Improvement Act Fisheries Program used a structured decision making approach to develop a framework to allow decision-makers to identify program objectives and guide planning of broad scale fisheries activities. Using a rapid prototyping process, program stakeholders developed a coarse resolution Chinook Salmon (Oncorhynchus tshawytscha) model and parameterized it using a combination of expert judgment and empirical data.
Peterson, J.T. 2016. Background on Adaptive Management and Decision Support Systems. Trinity River Science Symposium, March 29-30. Weaverville, CA.	March 2016	Here I introduced symposium participants to decision support and adaptive management concepts.
Peterson, J.T. 2014.Influence of incomplete capture on fish monitoring and management: problems and solutions. Annual California Delta Science Conference, October 29-31, Sacramento, California.	October 2014	In this presentation, I discuss the problems with sampling biases and provide participants with alternatives to index-based samples.
Peterson, J.T. 2013.System-wide: Estimating juvenile habitat with stream channel characteristics. TRRP’s Scientific Advisory Board Review of Phase 1. Trinity River Restoration Program Science Symposium. Weaverville, CA.	January 2013	This work evaluated the changes in system-wide habitat in the Trinity River following Phase I restoration activities. This was part of the Phase I review being conducted by the Science Advisory Board.
Peterson, J.T. 2013. Integrating Monitoring, Research, and Management:Leveling the 3 legged stool. Annual meeting of the Salvelinus confluentus Curiosity Society, Aug 13-15, Anthony Lakes, OR.	August 2013	This presentation argues that bull trout managers should implement adaptive resource management.
Peterson, J.T. 2013. Decision Support System framework for adaptive management. Trinity River Restoration Program Science Symposium, Weaverville CA. TRRP’s Scientific Advisory Board Review of Phase 1	January 2013	This presentation introduced members of the Trinity River Restoration Executive Board to the basic concepts of structured decision making and adaptive management and how the could be implemented in the Trinity. This was part of the Phase I review being conducted by the Science Advisory Board.
Peterson, J.T. 2012. An Evaluation of Fish Electrofishing Capture Efficiency and Sample Designs for Wadeable Warmwater Streams. 142nd Annual Meeting of the American Fisheries Society, August 19-23, St. Paul, MN. (INVITED).	August 2012
Peterson, J. T., D. T. de Kerckhove, H. C. Giacomini, and C. P. Paukert. Converting Non-standard Data to Standardized Data For Freshwater Fisheries. Invited presentation, World Fisheries Congress, Seattle WA 5 March 2024	March 2024	This study is part of a book and symposium that provides guidance to managers on how to convert data collected with a non standard gear to a standard gear, which will allow for comparison to past data.
Peck-Richardson, A.G., D.E. Lyons, K.N. Courtot, B.M. Cramer, and D.D. Roby. 2015. Using satellite telemetry to predict dispersal of Double-crested Cormorants following habitat reduction at the largest breeding colony in North America. Annual Meeting of The Waterbird Society, Bar Harbor, Maine.	August 2015	This telemetry study demonstrates high connectivity between the cormorant breeding colony on East Sand Island in the Columbia River estuary other breeding colonies of the species throughout western North America.
Peck-Richardson, A.G., D.E. Lyons, D.A. Cushing, J.A. Lerczak, and D.D. Roby. 2016. FORAGING HABITAT USE AND NICHE PARTITIONING IN TWO SYMPATRIC CORMORANT SPECIES NESTING IN THE COLUMBIA RIVER ESTUARY, OREGON. 43rd Annual Meeting of the Pacific Seabird Group, Oahu, Hawaii.	February 2016	This presentation describes the niche partitioning and degree of habitat segregation of two species of cormorants that nest sympatrically at the mouth of the Columbia River.
Peck-Richardson, A.G., D.E. Lyons, B.M. Cramer, K.N. Courtot, J.M. Mannas, and D.D. Roby. 2015. INITIAL RESPONSE AND DISPERSAL OF DOUBLE-CRESTED CORMORANTS FOLLOWING HABITAT REDUCTION AT THE LARGEST BREEDING COLONY IN NORTH AMERICA. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper indicates that reduction of available nesting habitat for Double-crested Cormorants on East Sand Island and human disturbance resulted in temporary dispersal of breeding adults to other prospective colony sites, but ultimately tagged cormorants returned to the East Sand Island colony site.
Peck-Richardson, A., B. Cramer, D.E. Lyons, and D.D. Roby. A non-destructive option for managing a large Double-crested Cormorant colony: Precise reduction of nesting habitat. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8-10 February.	February 2012
Pease, JE. and J.T. Peterson. 2019. Willamette River Instream Ecological Flow Science Review and Analyses Prioritization. 2019. Willamette Fisheries Science Review. Corvallis OR, February 12-23	February 2019	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
Pease, JE. L. Whitman, K. Schroeder, and J.T. Peterson. 2020. Willamette instream flow project: estimation and modeling of Chinook salmon demographics. Willamette Fisheries Science Review, Corvallis OR, February 11-12	February 2020	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
Pease, J.E., L. Whitman, K. Schroeder, and J.T. Peterson. 2020. Spring Chinook Salmon survival and movement in response to altered flows and temperatures in the Willamette River, Oregon. Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-6, Bend, OR.	March 2020	The Oregon Department of Fish and Wildlife has pit tagged juvenile Chinook Salmon in the Willamette Basin for the past 20 years. Individuals are later resighted at PIT-tag interrogation stations, recaptured during seining efforts, or recovered in the estuary. Using a multi-state recapture-resight-recovery model, we estimated annual juvenile Chinook Salmon growth, survival, and movement in response to changes in abiotic or biotic factors.
Pease, J., J.T. Peterson, L. Whitman, K. Schroder. 2019. Spring Chinook Salmon Survival and Movement in Response to Altered Flows, Habitat Availability, and Temperatures in the Willamette River, Oregon. Annual Meeting of the American Fisheries Society, Reno NV.	September 2019	The Oregon Department of Fish and Wildlife has pit tagged juvenile Chinook Salmon in the Willamette Basin for the past 20 years. Individuals are later resighted at PIT-tag interrogation stations, recaptured during seining efforts, or recovered in the estuary. Using a multi-state recapture-resight-recovery model, we estimated annual juvenile Chinook Salmon growth, survival, and movement in response to changes abiotic or biotic factors.
Patterson, A.G.L., D.E. Lyons, D.D. Roby, P.J. Loschl, and T.J. Lawes. 2014. Females forage farther: Bi-modal foraging distribution of Caspian Terns breeding at a colony in interior Washington. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This study demonstrates for the first time that Caspian terns during the incubation period can forage over 90 km from their nest, and that females preferentially undertake these long-distance foraging trips.
Patterson, A., D.E. Lyons, and D.D. Roby. 2012. Assessing foraging conditions at Caspian Tern restoration sites. Fifth North American Ornithological Conference, Vancouver, B.C., 15-16 August.	August 2012
Patterson, A., D.D. Roby, D.E. Lyons, and K. Collis. 2013. Using artificial islands and social attraction to establish new Caspian Tern colonies in the Upper Klamath Basin, California. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study demonstrates the efficacy of using island construction and social attraction techniques to restore Caspian tern colonies in the Upper Klamath Basin of Oregon/California.
Patterson, A., D. Roby, K. Collis, D. Lyons, and D. Battaglia. Restoration of Caspian Terns to the Upper Klamath Basin, California. 1st World Seabird Conference, Victoria, B.C., Canada. POSTER	September 2010
Patterson, A., A. Kitaysky, D.E. Lyons, and D.D. Roby. 2013. Corticosterone in feathers – A cautionary tale of nutritionally-stressed Caspian Tern chicks. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study shows that circulating levels of the stress hormone corticosterone are not necessarily reflected in elevated levels of court in growing feathers of young birds that are nutritionally stressed.
Patterson A., D.D. Roby, and D.E. Lyons. Locavore’s dilemma: Fine-scale foraging strategies of Caspian Terns. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 10 February.	February 2012
Paredes, R., H. Renner, D.B. Irons, R.A. Orben, R.M. Suryan, B. Drummond, D.D. Roby, and G. Dell’Omo. Partitioning of pelagic resources revealed by GPS tracking of breeding Red-legged and Black-legged kittiwakes. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This study demonstrated resource partitioning by these two closely related and sympatric seabird species in the Bering Sea.
Paredes, R., D.B. Irons, D.D. Roby, Y. Tremblay, R. Young, A.M.A. Harding, R.A. Orben, R. M. Suryan, H. Renner, A. Will, and A. Kitaysky. 2013. Three dimensional spatial use of marine habitats provides insight into the contrasting population trends of a deep-diving seabird in the Bering Sea. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study compares and contrasts the foraging behavior and nesting success of Thick-billed Murres at two colonies in the Bering Sea, one on an island in the deep pelagic waters of the basin and the other on the continental shelf.
Paredes, R., D.B. Irons, D.D. Roby, R.M. Suryan, A. Harding, H. Renner, R. Orben, C. Barger. Gender differences in foraging distribution of Black-legged Kittiwakes at two Bering Sea colonies: Responses to changing food availability. 1st World Seabird Conference, Victoria, B.C., Canada, 8 September.	September 2010
Paredes, R., D.B. Irons, D.D. Roby*, G.V. Byrd, R. Orben, and K.A. Kuletz. 2009. At-sea GPS tracking of chick-rearing black-legged kittiwakes and thick-billed murres at the Pribilof Islands, Alaska. 2009 Alaska Marine Science Symposium, Anchorage AK, 21 January.	January 2009
Paredes, R., D.B. Irons*, D.D. Roby, G.V. Byrd, R. Orben, and K.A. Kuletz. 2009. At-sea GPS tracking of chick-rearing Black-legged Kittiwakes and Thick-billed Murres at the Pribilof Islands, Alaska. 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 24 February.	February 2009
Paredes, R., A. Harding, D.D. Roby, D.B. Irons, R. Orben, V. Byrd, H. Renner, and K. Kuletz. GPS-tracking of chick-rearing piscivorous seabirds in the Bering Sea, 2009. BEST-BSIERP Principal Investigator’s Meeting, Girdwood AK. POSTER	October 2009
Parades, R., A.M.A. Harding, D.B. Irons, D.D. Roby, R.M. Suryan, R.A. Orben, G.V. Byrd, H.M. Renner, and K.J. Kuletz. Comparison of black-legged kittiwake foraging at three colonies in the Bering Sea during cold years. 2010 Alaska Marine Science Symposium, Anchorage AK. POSTER	January 2010
Parades, R., A. Harding, D.B. Irons, D.D. Roby, R. Orben, V. Byrd, H. Renner, K. Kuletz, and R. Suryan. GPS-tracking of chick-rearing black-legged kittiwakes and thick-billed murres in the Bering Sea: St. Paul, St. George, and Bogoslof Islands, 2009. 37th Annual Meeting of the Pacific Seabird Group, Long Beach CA.	February 2010
Palmer, R.M., E. J. Billman, C. Sharpe, D. L. G. Noakes, and C. B. Schreck. Variation in smolt quality of juvenile spring Chinook salmon. Oregon Chapter American Fisheries Society Annual Meeting, Feb 25-28, 2014. Eugene Oregon.	February 2014	The ability of fall and spring smolts to regulate plasma sodium during salt water challenges indicated both groups could survive in the ocean, suggesting that fall and spring smolts would migrate if there was a match between physiological and environmental factors.
Osborne-Gowey, J., G. Boxall, A. Jenne, S. Heppell, H. Li, C. Pereira and M. Varner. 2005. Responses of an endangered cutthroat to an exotic invading charr. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
Orning, EK, KM Dugger, and DA Clark. 2023. Spatial and dietary consequences of apex carnivore competition following gray wolf recolonization in the Pacific Northwest. 2023 Wolves Across Borders, May 8-11, Stockholm, Sweden.	May 2023	We found that intake of ungulate biomass and daily cougar movements changed after wolves expanded into areas of northeast Oregon where they had previously been absent. Cougar kill rates and intake of ungulates decreased after wolves colonized the study area. In addition, cougar were primarily active from evening through the night before wolves, but when wolves were present they moved shorter distances overall, and were primarily active during morning and evening time periods.
Orning, EK, KM Dugger, and DA Clark. 2022. Spatial consequences in cougar diel activity and habitat selection following wolf recolonization in Oregon. 2022 International Wolf Symposium, October 13-16, 2022, Minneapolis, MN	October 2022	We found that daily cougar movements changed after wolves expanded into areas of northeast Oregon where they had previously been absent. Cougar were primarily active from evening through the night before wolves, but when wolves were present they moved shorter distances overall, and were primarily active during morning and evening time periods.
Orning, EK, KM Dugger, and DA Clark. 2022. Spatial consequences in cougar diel activity and habitat selection following wolf recolonization in Oregon. 13th WAFWA Mountain Lion Workshop, April 4-7, 2022, Virtual	April 2022	We found that daily cougar movements changed after wolves expanded into areas of northeast Oregon where they had previously been absent. Cougar were primarily active from evening through the night before wolves, but when wolves were present they moved shorter distances overall, and were primarily active during morning and evening time periods.
Orning, EK, KM Dugger, and DA Clark. 2022. Spatial and dietary implications of apex carnivore competition following wolf recolonization in Oregon. The Wildlife Society's 29th Annual Conference, November 6-10, 2022, Spokane, WA	November 2022	After wolves expanded into areas of northeast Oregon where they had previously been absent we found that cougar killed less prey (of all types) during the summer, and the total amount of deer eaten was lower, compared to time periods before wolves. In addition, post-wolf colonization cougar spent more time searching for prey, but moved shorter distances while hunting and they shifted their daily activity patterns to avoid periods of high wolf activity.
Orning, E.K., K.M. Dugger, and D.A. Clark. 2018. Spatial patterns of kill site distribution for wolves and cougars in an area of sympatry. Joint annual meeting of the Oregon Chapter of The Wildlife Society, the Washington Chapter of The Wildlife Society, the Society for Northwestern Vertebrate Ecology, and the Northwestern Partners in Amphibians and Reptile Conservation. Portland, OR, Feb 13-16, 2018.	February 2018	Distribution of cougar kills differed from pre- to post-wolf time periods and relative to areas where wolves frequently made kills. Coupled with little change in cougar diet composition, distributional shifts in areas cougar frequently kill prey could signal relatively unchanged effects to prey populations in this multi-predator system.
Orning, E.K., K.M. Dugger, and D.A. Clark. 2017. Preliminary predation patterns of wolves and cougars in an area of sympatry. Research Advances in Fisheries Wildlife and Ecology Symposium (RAFWE) 2017, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR	April 2017	This research provides important basic information regarding interspecific competition and the effects of multiple carnivores on ungulate populations where wolves are newly re-established. This is one of the only studies with cougar diet data both pre- and post-wolf recolonization.
Orning, E.K., K.M. Dugger, and D.A. Clark. 2017. Preliminary predation patterns of wolves and cougars in an area of sympatry. Oregon Chapter of The Wildlife Society 2017 Annual Meeting, Pendleton, OR, Feb 8-10, 2017.	February 2017	This research provides important basic information regarding interspecific competition and the effects of multiple carnivores on ungulate populations where wolves are newly re-established. This is one of the only studies with cougar diet data both pre- and post-wolf recolonization.
Orning, E.K., K.M. Dugger, and D.A. Clark. 2017. Preliminary predation patterns of wolves and cougars in an area of sympatry. 24th Annual Conference of The Wildlife Society, Albuquerque, New Mexico, September 23-27, 2017	September 2017	This research provides important basic information regarding interspecific competition and the effects of multiple carnivores on ungulate populations where wolves are newly re-established. This is one of the only studies with cougar diet data both pre- and post-wolf recolonization.
Orning, E.K., K.M. Dugger, and D.A. Clark. 2017. Preliminary predation patterns of wolves and cougars in an area of sympatry. 12th Mt. Lion Workshop, Estes Park, CO, May 15-18, 2017.	May 2017	This research provides important basic information regarding interspecific competition and the effects of multiple carnivores on ungulate populations where wolves are newly re-established. This is one of the only studies with cougar diet data both pre- and post-wolf recolonization.
Orning, E.K., K.M. Dugger, and D. A. Clark. 2019. Dogs chasing cats: diel activity for wolves and cougars in an area of sympatry. Oregon Chapter of the Wildlife Society 2019 Annual Meeting, Feb. 27 - March 1, Bend, OR.	February 2019	We evaluated activity patterns (distance traveled, rates of travel, time of day) for cougars before (2009-2012) and for wolves and cougars after (2014-2018), wolves recolonized a wildlife management unit in northeastern Oregon. Cougars and wolves moved at similar rates, but cougar traveled 1.4 times shorter distances per 3-hr interval when wolves were present in the landscape compared to when they were absent.
Orning, E., K.M. Dugger, and D.A. Clark. 2018 Apex carnivore competition: predation patterns of wolves and cougars in an area of sympatry. International Wolf Symposium 2018, Minneapolis, MN, 11-14 October, 2018.	October 2018	We examined wolf and cougar predation patterns before (2009-2012) and after (2014-2016) wolves recolonized the Mt. Emily Wildlife Management Unit in northeast Oregon. Cougar preyed predominantly on deer both before and after wolf colonization of the study areas, whereas wolves preyed predominately on elk, particularly calves.
Orben, R.A., R. Paredes, D.D. Roby, D.B. Irons, and S.A. Shaffer. 2015. BODY SIZE PREDICTS INDIVIDUAL WINTER FORAGING STRATEGIES OF THICK-BILLED MURRES (URIA LOMVIA) IN THE BERING SEA. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This study indicates that intraspecific differences in body size are linked to differences in migratory movements and over-winter distribution of a pursuit-diving seabird with high flight costs.
Orben, R.A., R. Paredes, D.D. Roby, D.B. Irons, R. Phillips, and S.A. Shaffer. Winter movements of black-legged kittiwakes from three colonies in the Bering Sea. 37th Annual Meeting of the Pacific Seabird Group, Long Beach CA.	February 2010
Orben, R.A., R. Paredes, D.D. Roby, D.B. Irons, R. Phillips, and S.A. Shaffer. Winter movements of black-legged kittiwakes from three colonies in the Bering Sea. 2010 Alaska Marine science Symposium, Anchorage AK. POSTER	January 2010
Orben, R., R. Paredes, D.D. Roby, D.B. Irons, R.A. Phillips, and S.A. Shaffer. Flight performance limits winter migration? A comparison of two species breeding at three colonies in the Bering Sea, Alaska. 1st World Seabird Conference, Victoria, B.C., Canada. POSTER	September 2010
Olson, G.S., R.G. Anthony, E.D. Forsman, W.J. Ripple, and E. Glenn. September 2001. Demographic performance of northern spotted owls in relation to landscape vegetative patterns. 8th Annual Conference of The Wildlife Society.	September 2001
Olson, G.S., R.G. Anthony, E.D. Forsman, S.H. Ackers, P.J. Loschl, J.A. Reid, K.M. Dugger, E.M. Glenn and W.J. Ripple. Modeling of site occupancy dynamics for northern spotted owls with emphasis on the effects of barred owls. Northern Spotted Owl Research and Managers Workshop, Portland OR.	February 2005
Olson, G.L., R.G. Anthony, E.D. Forsman, W.J. Ripple, and E.M. Glenn. Demographic performance of northern spotted owls relative to forest cover types in the northwestern United States. Third International Wildlife Management Congress, Christchurch NZ, 1-6 December 2003.	December 2003
Olson, G.L., R.G. Anthony and E.D. Forsman. 2004. Factors affecting occupancy of nest-sites by Northern Spotted Owls. The Wildlife Society annual conference, Calgery, AB, Canada.	January 2004
Olson, G., R.G. Anthony, E.D. Forsman, W. Ripple, E.M. Glenn, J. Reid, and P. Loschl. Demographic performance of northern spotted owls relative to landscape vegetative patterns. Oregon Chapter, The Wildlife Society, 15 February, Gleneden Beach, OR.	February 2002
Olson, G., E. Glenn, R.G. Anthony, E.D. Forsman, J.R. Reid, P.S. Loschl, and W. Ripple. Modeling demographic performance of northern spotted owls relative to forest habitat in Oregon. Science and the Northwest Forest Plan: Knowledge gained over a decade. College of Forestry, Oregon State University, Portland OR.	April 2005
Northrup, J.M., J.W. Rivers, S.K. Nelson, D.D. Roby, L.J. Adrean, and M.G. Betts. 2017. Spatiotemporal patterns of corvid distribution and abundance in areas occupied by Marbled Murrelets. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation examines the available data on corvid (e.g., Steller's Jay) distribution and abundance over the last 30 years to detect whether these important nest predators of Marbled Murrelets have increased in murrelet nesting habitat within the portion of the species nesting range where it is listed as Threatened under the ESA.
Noaks, D., Schreck, C., Sharpe, C., Billman, E., Unrein, J., Chitwood, R., Couture, R. Development of wild fish surrogates for Upper Willamette River salmonids Willamette Fisheries Science Review, Corvallis Oregon. February 5-7, 2013.	February 2013	This project has two main objectives: 1) coordinate with RM&E principal investigators to provide wild fish surrogates for RM&E studies, and 2) conduct experimental research to determine factors contributing to the expression of diverse early life history phenotypes by Upper Willamette River salmonids.
Noakes, David L. G., Karen M. Cogliati, Carl B. Schreck, Cameron S. Sharpe. (2016). Determinants of migratory life history phenotypes in juvenile spring Chinook salmon. Willamette Science Review, Feb 7-8, 2016.	February 2016	In a study conducted with brood year 2014, we found significant differences in the proportion of surface- and bottom- oriented groups across 5 families. Our results show that environmental variables can be manipulated to influence the developmental trajectories and migration phenotypes of juvenile Chinook salmon. However, we also show that juvenile migration timing of Chinook salmon may be naturally determined prior to substantial environmental influence.
Noakes, D.L.G., Unrein, J., Sharpe, C., Chitwood, R., Couture, R., and Schreck, C. B. Born to Behave Wild? Can We Produce Artificially Reared Fish with a Wild Phenotype? US Army Corps of Engineers, Annual Willamette River Science Review, Corvallis, OR Jan 30- Feb 1, 2012.	January 2012
Noakes, D., J. Romer, C. Leblanc, S. Clements, A. Citelman and C.B. Schreck. Can steelhead 'ocean mortality' be explained by survival in lower rivers and estuaries? 1st Internation Conference on Fish Telemetry, June 12-18, Sapporo Japan.	June 2011
Nelson, S.K., J.M. Northrup, D.D. Roby, M.G. Betts, L.J. Adrean, and J.W. Rivers. 2017. Evaluating space use and reproductive success of the threatened Marbled Murrelet in western Oregon. 44th Annual Meeting of the Pacific Seabird Group. Tacoma, Washington.	February 2017	This poster describes a new study to better understand the nesting ecology of Marbled Murrelets in Oregon, the core of the species range in the conterminous U.S. using radio telemetry, UAVs, and social attraction.
Nelson, S.K., J. Northrup, J. Rivers, D.D. Roby, and M. Betts. 2018. The influence of climate change, habitat loss, and predator distribution on the distribution of Marbled Murrelets over 30 years in the Pacific Northwest. 45th Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 21-24 February.	February 2018	This presentation investigates widespread patterns in colonization and extinction of Marbled Murrelets based on occupancy by Steller's Jays, a widespread nest predator, and ocean conditions, such as El Niño/Southern Oscillation. Areas with greater occurrence of Steller's Jays had higher turnover of Marbled Murrelets.
Nelson, S.K., D.D. Roby, K. Collis, K. Larson, C. Couch, and P.J. Klavon. Caspian Tern nesting ecology and diet in San Francisco Bay and interior Oregon. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 24 January 2004.	January 2004
Neal, T., M.L. Kent, J. Sanders, C.B. Schreck, and J. Peterson. 2020. Experimental infection of the parasitic copepod on juvenile Chinook salmon. Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-6, Bend, OR.	March 2020	We developed an experimental protocol for infecting juvenile salmonids with a freshwater parasitic copepod, Salmincola californiensis. We found that infection rate and intensity was positively related to water temperature and the density of the infective stages of S. californiensis.
Neal, T., M. L. Kent, J. Sanders, C.B. Schreck, and J.T. Peterson. 2021. Effects of saltwater transition of juvenile Chinook salmon infected with a parasitic copepod. Oregon Chapter of the American Fisheries Society Annual Meeting, March 3-5	March 2021	We experimentally infected juvenile salmonids by exposing them to the infectious stage of the parasite. We then conducted three saltwater challenges by exposing experimentally infected fish and control fish in 34 ppt saltwater for 24 hours. Copepod infection prevalence and intensity of the experimentally infected fish was slightly less than observed in wild salmonids in Willamette Valley reservoirs and high mortality was observed during saltwater trials.
Naughton, M., P. Capitolo, D. Nysewander, D. Pitkin, G. McChesney, D. Roby, W. McIver, and H. Carter. Status of breeding cormorants along the west coast of the conterminous United States. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 24 January 2004.	January 2004
Myers, A.M., D.D. Roby, and A.R. Place. 2008. Using Fatty Acids to Study Diet Composition in Birds: Are You Really What You Eat? Annual Meeting of the Oregon Chapter, The Wildlife Society, Gleneden Beach OR.	February 2008
Myers, A.M., D.D. Roby, K. Collis, and D.E. Lyons. Decline in numbers of Caspian terns at colonies in the Pacific Northwest: Indication of decreased survival rates between the 2002 and 2003 breeding seasons? Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 22 January 2004.	January 2004
Myers, A.M., D.D. Roby, K. Collis, D.E. Lyons, and J.Y. Adkins. Diet composition of double-crested cormorants nesting at East Sand Island in the Columbia River Estuary. Oregon Chapter of the Wildlife Society Annual Meeting, 13-15 February, Gleneden Beach, OR. (Poster presentation).	February 2002
Myers, A.M., D.D. Roby, A.R. Place, and A.I. Gitelman. Evaluating the fatty acid signature technique for studies of diet composition in piscivorous seabirds. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Myers, A.M., D.D. Roby, A.R. Place, and A.I. Gitelman. Evaluating the fatty acid signature technique for studies of diet composition in piscivorous seabirds. 34th Annual Meeting of the Pacific Seabird Group, Asilomar CA.	February 2007
Myers, A.M., D.D. Roby and A.R. Place. Using captive feeding trials to validate the fatty-acid signature technique for diet determination in piscivorous seabirds. Joint annual meeting of the Pacific Seabird Group and The Waterbird Society, Portland OR.	January 2005
Myers, A.M., D.D. Roby and A.R. Place. Using captive feeding trials to validate the fatty-acid signature technique for diet determination in piscivorous seabirds. Annual meeting of the Oregon Chapter of The Wildlife Society, Corvallis OR.	February 2005
Murphy, S.M., R.J. Ritchie, D.D. Roby, D.L. Nordmeyer, and A.G. Palmer. 2001. Responses of peregrine falcons to low-level jet aircraft. Effects of Noise on Wildlife Conference, Goose Bay, Labrador, Canada.	October 2001
Munakata, A., Miura, G., Schreck C.B. Water temperature decrease triggers hormone mediated downstream migratory behavior in Pacific salmonids. International Symposium on Fish Endocrinology, Buenos Aires, Argentina, September 2012.	September 2012
Munakata, A., G. Miura, S. Kitamura, K. Aida, B. Hansen and C.B. Schreck. Minute temperature decrease triggers hormone mediated downstream movement in Pacific salmon. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
Munakata, A., G. Miura, S. Kitamura, K. Aida, B. Hansen and C.B. Schreck. 2008. Minute Temperature Decrease Triggers Hormone Mediated Downstream Movement in Pacific Salmon. American Fisheries Society Western Division Annual Meeting, Portland OR.	May 2008
Munakata, A., G. Miura, S. Kitamura, K. Aida, B. Hansen and C. Schreck. Minute temperature decrease triggers hormone mediate downstream movement in Pacific salmon. 8th International Workshop on Smoltification, September 20-24, Corvallis OR.	September 2011
Munakata, A., G. Miura, S. Kitamura, K. Aida, B. Hansen and C. Schreck. Minute Temperature Decrease Triggers Hormone Mediated Downstream Movement in Pacific Salmon. 8th International Workshop on Smoltification, Corvallis OR.	September 2010
Munakata, A., G. Miura and C.B. Schreck. Effects of temperature changes on plasma cortisol levels in masu salmon. Japanese Society of Fisheries Science, October 27-29, Kanagawa Japan.	October 2010
Munakata, A., D. Noakes, C. Schreck. (2016). Minutes and slight water temperature decrease triggers hormone mediated downstream migratory behavior in Pacific salmon. International Symposium on Fish Endocrinology in Gothenburg, Sweden, 28TH JUNE – 2ND JULY 2016.	June 2016	We suggest slight decreases in water temperature, even for short periods of time, is an important triggers or perhaps regulates hormone mediated downstream swimming behavior, an initial step of seaward migration in juvenile Pacific salmonids.
Morandini, V., and K.M. Dugger. 2018. Catastrophic events and impact on populations of long-lived birds. IX Spanish Symposium on Polar Studies. Madrid, Spain, 5-7 September, 2018.	September 2018	Some studies have suggested that extreme environmental conditions may have stronger effects on population dynamics of a long-lived species like the Adélie penguin, than average climate patterns. We modeled the potential impact of chick mortality events on Adélie penguin populations, simulating over 2000 different scenarios with changes in populations' sizes, chick mortality rates, and event frequency and duration to determine how catastrophic events impact population dynamics of long-lived sp
Morandini, V., K.M. Dugger, G. Ballard, and D.G. Ainley. 2020. SEX-RELATED SURVIVAL, AGE-AT-FIRST BREEDING, AND BREEDING PROPENSITY OF ADÉLIE PENGUINS ON ROSS ISLAND, ANTARCTICA. 47th Annual Meeting of the Pacific Seabird Group, Portland, OR, February 12-15, 2020.	February 2020	The survival rate of Adelie penguins varied in relation to breeding status and colony, but not sex. Pre-breeders had higher survival rates than breeders and non-breeders, and females had a higher probability of recruiting into the breeding population each year. Thus, despite the lack of direct sex effects on survival, differences in breeding propensity and associated age of first reproduction between males and females, and lower survival rates of breeders compared to pre-breeders resulted in
Monzyk, F. A. Harrison, and J.T. Peterson. 2024. Assessing the Relationship Between Warner Sucker Abundance and eDNA for Possible Use in Monitoring. Annual meeting of the Oregon Chapter of the American Fisheries Society. Feb 26- Mar 1, Bend OR	February 2024	We conducted a pilot study to assess the relationship between eDNA concentration and Warner Sucker abundance in pools of Twentymile Creek in the Warner Basin. We systematically collected and filtered 1-L water samples throughout individual pools and conducted qPCR to quantify the amount of Warner Sucker eDNA.
Montano-Monteczuma, G., H.W. Li, and P. Rossignol. January 2001. Determination of stability of sea urchin-kelp forest communities of Coastal Oregon using qualitative models. Poster. Symposium on Marine Refuges.	January 2001
Momoda, T.S., R. Chitwood, G. Feist, J. Colt, C.B. Schreck. 2008. Effects of Stress and Injury Associated with Transporting Live Tilapia. World Aquaculture Society, Gainsville FL.	May 2008
Momoda, T.S., L. Gerwick. C. Bayne and C.B. Schreck. 2005. A microarray-based analysis of the stress response in Oncorhyncus mykiss. Oregon Chapter of the American Fisheries Society 41st annual meeting, Corvallis OR.	February 2005
Momoda, T.S., L. Gerwick, C.J. Bayne and C.B. Schreck. 2006. Differential gene expression in rainbow trout (Oncorhynchus mykiss) liver in response to handling stress. 7th International Congress on the Biology of Fish, St. John?s, Newfoundland, Canada.	October 2006
Momoda, T.S., L. Gerwick, C. Bayne, and C.B. Schreck. 2006. Effects of handling stress on gene expression in rainbow trout liver. 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Momoda, T.S., L. Gerwick, C. Bayne and C.B. Schreck. 2007. Gene expression during the stress response gives insight to recovery and possible sex differences in rainbow trout. 43rd Annual Meeting of the Oregon Chapter of the American Fisheries Society, Eugene, OR.	September 2007
Momoda, T.S., K.J. Rodnick and C.B. Schreck. Matters of the heart and sex: cardiac stress physiology in rainbow trout. Annual meeting of the Oregon Chapter of the American Fisheries Society, February 22-25, Bend OR.	February 2011
Momoda, T.S., K.J. Rodnick and C.B. Schreck. Matters of the Heart and Sex: Cardia Stress Physiology in Rainbow Trout. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
Momoda, T.S., A.R. Schwindt, G.W. Feist, L. Gerwick, C.J. Bayne, and C.B. Schreck. 2007. Gene expression during the stress response gives insight to recovery and possible sex differences in rainbow trout. 37th Western Regional Conference on Comparative Endocrinology, San Juan Island, WA.	September 2007
Momoda, T., R. Chitwood, G. Feist, J. Colt, and C. Schreck. 2007. Stress Effects of Transporting Tilapia to the Live Fish Market and Recommendations to Enhance Health and Survival. World Aquaculture Society Annual Meeting, San Antonio, TX.	September 2007
Momoda, T., R. Chitwood, G. Feist, J. Colt and C.B. Schreck. 2008. Effects of Stress and Injury Associated with Transporting Live Tilapia. American Fisheries Society Western Division Annual Meeting, Portland OR.	May 2008
Momoda, T., L. Gerwick, C. Bayne, and C. Schreck. 2006. Differential gene expression in rainbow trout liver in response to handling stress. Western Regional Conference on Comparative Endocrinology, Newport, OR.	October 2006
Misumi, I., A. Vella, J.C. Leong, and C.B. Schreck. 2002. Seasonal change of cellular immunotoxicity in juvenile chinook slamon exposed to p,p,-DDE. Oregon Chapter of the American Fisheries Society, Sunriver OR.	February 2002
Misumi, I., A. Marie, A. Vella, and C.B. Schreck. 2003. A new simple colorimetric assay to measure mitogenic response of leukocytes isolated from spleen and pronephros of chinook salmon. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Milston, R.H., T. Crippen, A. Vella, C.B. Schreck, J.C. Leong, and M.S. Fitzpatrick. January 2000. In vitro detection of immunocompetence of juvenile salmon after exposure to endocrine disrupting chemicals (EDCS) using flow cytometry. Western Regional Conference on Comparative Endocrinology.	January 2000
Milston, R.H., M.S. Fitzpatrick, A.T. Vella, T.L. Crippen, I. Misumi, D. Gunderson, J.C. Leong, and C.B. Schreck. January 2001. Short-term exposure of fall chinook salmon (ONCORYHNCHUS TSHAWYTSCHA) to O'P-DDE during early life history stages affects the long term comeptence of the humoral immune system. Western Regional Conference on Comparative Endocrihnology.	January 2001
Millers, K.A. and J.T. Peterson. 2016. Dealing with uncertain data: An evaluation of long-term fish monitoring in the San Francisco Bay-Delta. 2016 Bay-Delta Science Conference, Sacramento CA.	October 2016	Using simulation and long-term monitoring data, we estimate the bias and variability of abundance and occupancy estimates for selected fish species in the San Francisco Bay-Delta. We determine how historical population estimates may differ after adjusting for particular sampling biases.
Millers, K.A and J.T Peterson. 2016. Are the fishes imperiled? Evaluating uncertainty from long-term fish monitoring in the San Francisco Delta. International Statistical Ecology Conference 2016, Seattle.	June 2016	Sampling bias and variance are the primary factors that influence data quality and inferences of catchability, abundance and occupancy. This study evaluates the effectiveness of current monitoring efforts of fishes in the San Francisco Delta and estimates the bias in long-term population trends.
Millers, K. and J.T Peterson. 2016.Evaluating the uncertainty in long-term fish monitoring data in the San Francisco Estuary . The International Society for Ecological Modelling Global Conference 2016. 8-12 May, Towson University, MD.	May 2016	Understanding where bias influences estimates of catchability, abundance, and occupancy in survey data can lead to improved management decisions. In this study, we evaluate the likelihood of bias influencing long-term monitoring data in the San Francisco Estuary.
Miles, A.K., R.G. Anthony and M. Ricca. Environmental contaminants and trophic relatins among migratory and resident avifauna from the Aleutian Archipelago. 25th annual meeting of the Society of Environmental Toxicology and Chemistry, Portland OR.	November 2004
Mikkelsen, AJ, DB Lesmeister, KM O'Reilly, and KM Dugger. 2022. Stormy weather: how climate change may increase energetic demands in juvenile Northern Spotted Owls. Joint annual meeting of the American Ornithological Society and BirdsCarbbean, 27 June–2 July 2022, San Juan, Puerto Rico.	June 2022	We used levels of stress hormones found in the feathers of juvenile Northern Spotted Owls (<i>Strix occidentalis caurina</i>) over 17 years from across Washington and Oregon, USA to index physical challenges experienced by young birds during development. Results from our study showed that juvenile mass was lower when levels of stress hormones were high, and also when rainfall was high during the short time period when young birds were just gaining the ability to fly.
Mikkelsen, AJ, DB Lesmeister, KM O'Reilly, and KM Dugger. 2022. A challenging start is hard to recover from: physiological indicators of metabolic demands are related to survival and recruitment in a long-lived species. Joint annual meeting of the American Ornithological Society and BirdsCarbbean, 27 June–2 July 2022, San Juan, Puerto Rico.	June 2022	We used levels of stress hormones found in the feathers of juvenile Northern Spotted Owls (<i>Strix occidentalis caurina</i>) over 17 years from across Washington and Oregon, USA to index energetic demands and environmental variation. Results from our study showed that juvenile Northern Spotted owls with intermediate levels of stress hormones and the heaviest weights had the highest long-term survival. These results suggested that a relatively short period during early growth and development co
Mikkelsen, A.J., K.M. Dugger, and D.B. Lesmeister. 2020. You Need Some Meat on Those Bones! The Effect of Weight and Time on Northern Spotted Owl Recruitment. 2020 Annual Meeting of the Washington Chapter of The Wildlife Society, Spokane, WA, April 28-May 1, 2020.	April 2020	We determined levels of corticosterone from feathers of juvenile Northern Spotted Owls and used a multi-state mark-recapture framework to evaluate how early life challenges might be related to survival and recruitment from 7 study areas in Washington and Oregon. While we did not observe a direct relationship between juvenile corticosterone levels and survival of either non-territorial or territorial owls, recruitment was positively associated with fledging weights. We observed steep declines in
Mikkelsen, A.J., K.M. Dugger, D.B. Lesmeister, and K.M. O’Reilly. 2019. Spatio-temporal Dynamics and Effects of Stress on Juvenile Northern Spotted Owls. Oregon Chapter of the Wildlife Society 2019 Annual Meeting, Feb. 27 - March 1, Bend, OR.	February 2019	We have feathers collected from 1287 juvenile northern spotted owls individually marked between the years of 1991 and 2017. We extracted and measured CORT for each individual using radioimmunoassay, and using longitudinal data from a long-term demographic study, we will compare variations in juvenile stress levels to forest disturbance and the presence of barred owls.
Mikkelsen, A.J., K.M. Dugger, D.B. Lesmeister, and K.M. O'Reilly. 2020. Patterns in Juvenile Northern Spotted Owl Feather Corticosterone Relative to Environmental and Individual Variation. 2020 Annual Meeting of the Washington Chapter of The Wildlife Society, Spokane, WA, April 28-May 1, 2020.	April 2020	We examined the environmental and individual factors shaping the patterns in corticosterone extracted from juvenile Northern Spotted Owl (<i>Strix occidentalis caurina</i>) feathers. Our findings indicate that fledglings in better condition had lower corticosterone levels and corticosterone levels was increased in lighter juveniles when precipitation during the nesting season was increased.
Mikkelsen, A.J., K.M. Dugger, D.B. Lesmeister, and K.M. O'Reilly. 2020. Using Stress Hormones to Link the Environment to Apparent Survival in Non-Territorial Northern Spotted Owls. Oregon Chapter of The Wildlife Society's Annual Meeting, February 4-7, 2020, Eugene, OR.	February 2020	We determined corticosterone levels from feathers of these owls to evaluate how early life challenges might be related to these demographics using a multi-state mark-recapture framework and longitudinal data from known-age spotted owls from 6 study areas in Washington and Oregon. We did not observe a direct relationship between juvenile corticosterone levels and survival of either non-territorial or territorial owls, but survival of non-territorial owls was positively associated with fledging
Mercer, D.M., S.M. Haig, and D.D. Roby. Population genetic structure of the double-crested cormorant. Annual Meeting of the Waterbirds Society, Cape May NJ.	November 2009
Mercer, D.M., S.M. Haig, and D.D. Roby. Population genetic structure and genetic diversity in the Double-crested cormorant. 34th Annual meeting of the Pacific Seabird Group, Asilomar CA.	February 2007
Mercer, D.M., S.M. Haig and D.D. Roby. Population Genetic Structure in the Double-crested Cormorant. 125th Annual Meeting of the American Ornithologist Union, Portland OR.	August 2008
Mercer, D.M., S.M. Haig and D.D. Roby. 2008. Population Genetic Structure in the Double-crested Cormorant. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	March 2008
Mercado-Silva, N., J. Lyons, S.J. Magnelia, J.T. Petersen, A.H. Roy, and S. Wenger. 2024. Standard methods for sampling fishes in wadeable streams. American Fisheries Society Annual Meeting, 15-19 September 2024, Honolulu, HI.	September 2024	Publication of a second edition of the American Fisheries Society´s Standard Methods for Sampling Freshwater Fishes book has allowed revision of which gears are recommended for use in monitoring fish communities in wadable streams, and how they should be implemented. Recommended methods should aid in better monitoring and data collection and sharing for management of increasingly threatened wadable lotic ecosystems in North America and beyond.
Mercado-Silva, N., J. Lyons, S.J. Magnelia, J.T. Petersen, A.H. Roy, and S. Wenger. 2023. Standard methods for sampling fishes in wadeable streams. World Fisheries Congress, 3-9 March 2024, Seattle, WA.	March 2024	Publication of a second edition of the American Fisheries Society´s Standard Methods for Sampling Freshwater Fishes book has allowed revision of which gears are recommended for use in monitoring fish communities in wadable streams, and how they should be implemented. Recommended methods should aid in better monitoring and data collection and sharing for management of increasingly threatened wadable lotic ecosystems in North America and beyond.
McDonnell, K. and J.T. Peterson. 2015. A state-space approach to the estimation of juvenile out-migrant survival of Chinook salmon (Oncorhynchus tshawytscha) in the Lower American River, California. 145th Annual Meeting of the American Fisheries Society, August 16-20, Portland OR.	August 2015	We compare two methods for estimating juvenile out-migrant survival of Chinook salmon (O. tshawytscha) in the American River, CA. The first method uses a life history model and a heuristic optimization routine while the second method is a Bayesian state-space approach. The state-space approach provided much more consistent and more ecologically sound estimates of out-migrant survival rates. In addition, the state-space approach was also much less data intensive and thus is more likely to app
McDonnell, K. and J.Peterson. 2013.An example of quantitatively identifying the optimal spatial arrangement of freshwater salmon habitat restoration/improvement projects in a California Stream. Annual meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	This is the first time structured decision making has been applied to stream restoration for coastal salmonids.
McDonald, K. and J.T. Peterson. 2019. Quantitative decision analysis for identifying the optimal allocation of Chinook Salmon habitat restoration projects in a California Central Valley stream. 55th Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, Bend, OR.	March 2019	We used a decision theoretic approach to identify restoration manager objectives and develop a probabilistic decision model for evaluating alternative Chinook salmon (O. tshawytscha) restoration actions. Using the decision model, we identified optimal state-dependent restoration policies based on the adult escapement, spawning and rearing habitat availability, and thermal regime. The ‘optimal’ policy was identified as that would yield the largest number of Chinook salmon adults in the future.
Marcella, T.K., S.M. Gende, and D.D. Roby. 2013. Cruise ship disturbance to Kittlitz’s Murrelets in Glacier Bay National Park, Alaska. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study investigates the level of disturbance to Kittlitz's murrelets, a seabird species of conservation concern, from cruise ships operating in Glacier Bay National Park, and demonstrates the unexpectedly high levels of disturbance caused by cruise ships.
Marcella, T.K., D.D. Roby, and S.M. Gende. Cruise ship disturbance to Kittlitz’s Murrelets (Brachyramphus brevirostris) in Glacier Bay National Park and Preserve, Alaska. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8-10 February.	February 2012
Mangan, AO, T Chestnut, JC Vogler, IK Breckheimer, WM King, KE Bagnall and KM Dugger. 2019. Factors related to occupancy dynamics and breeding propensity of Northern Spotted Owls (Strix occidentalis caurina) in a protected area: habitat, weather and Barred Owl (S. varia) presence. 137th annual meeting of the American Ornithologists Society, June 24-28, 2019, Anchorage, AK.	June 2019	We used a multi-state, multi-season occupancy model to investigate the effects of Barred Owl presence, local and regional weather, and habitat characteristics on Northern Spotted Owl occupancy dynamics and breeding propensity at Mt. Rainier National Park from 1997-2016. Occupancy of spotted owl territories in MRNP has declined by 50% in the last 20 years and rates of occupancy by breeding spotted owls decreased to a low of 25% in 2016, although occupancy rates were higher on territories with s
Madrinan, L.F., H.W. Li, G. Giannico, S. Gregory, and B.E. Feist. 2005. Linking fine- and coarse-scale studies to determine spatial distribution of redband trout (Oncorhynchus mykiss gairdneri) at the watershed scale. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
M. Karnowski, C.B. Schreck, S. Clements, and D. Jepsen. 2002. Evaluating smolt migration and survival in near-shore and estuarine environments using hydro-acoustic arrays. Oregon Chapter of the American Fisheries Society, Sunriver OR.	February 2002
M. E. Colvin, J. T. Peterson, C. Sharpe, S. Benda, M. Kent, B. Dolan, C. C. Caudill, and C. Schreck. Development of a tool to evaluate outplanting strategies and prespawn mortality of Upper Willamette River spring Chinook. Annual Meeting of the Western Division of the American Fisheries Society, Boise, Idaho. April 15-18, 2013	April 2013	We developed a model to objectively evaluate management alternatives hypothesized to reduce PSM of spring Chinook within system constraints for outplanted spring Chinook in upper Willamette River basins.
Lyons, D.E., and D.D. Roby. February 2000. Foraging patterns of Caspian terns in the Columbia River Estuary. Pacific Seabird Group annual meeting.	February 2000
Lyons, D.E., and D.D. Roby. 2012. Comparative foraging ecology of two sympatric piscivorous waterbirds in the Columbia River estuary, USA. Fifth North American Ornithological Conference, Vancouver, B.C., 15 August.	August 2012
Lyons, D.E., T.J. Lawes, P.J. Loschl, Y. Suzuki, K.S. Bixler, E. Schniedermeyer, K. Collis, A. Evans, B. Cramer, and D.D. Roby. 2017. Caspian tern responses to the Inland Avian Predation Management Plan as indicated using satellite telemetry and resighting of banded individuals. Avian Predation Workshop, Richland, WA, 29 November.	November 2017	This presentation examines the movements and behavior of Caspian terns that were dispersed by managers from the two largest breeding colonies for the species within the Columbia Plateau region in order to reduce the impacts of tern predation on the survival of ESA-listed salmonid smolts.
Lyons, D.E., T.J. Lawes, P.J. Loschl, Y. Suzuki, K.S. Bixler, E. Schniedermeyer, K. Collis, A. Evans, B. Cramer, and D.D. Roby. 2017. Caspian tern response to management at Goose Island, Potholes Reservoir, and Crescent Island, McNary Reservoir, as indicated using satellite telemetry. Avian Predation Workshop, U.S. Army Corps of Engineers, The Dalles, Oregon. 2 March.	March 2017	The presentation describes the behavior and movements of Caspian terns that were displaced from their breeding colonies by management intended to reduce predation rates on ESA-listed salmonid smolts in the Columbia Plateau region.
Lyons, D.E., T.J. Lawes, A. Patterson, D.D. Roby, Y. Suzuki, and P.J. Loschl. 2016. Migration and winter movements of Pacific Flyway Caspian Terns. 43rd Annual Meeting of the Pacific Seabird Group, Oahu, Hawaii.	February 2016	This presentation describes the pattern of fall migration and overwintering areas of Caspian Terns based on movements of satellite-tagged individuals, which dispersed widely over the wintering range in western Mexico and Central America, but converged on one or two key migration stopover sites that are of conservation concern.
Lyons, D.E., M. Antolos, D.D. Roby, and K. Collis. 2003. Caspian tern predation on juvenile salmonids in the Mid-Columbia River. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Lyons, D.E., J. Tennyson, A. Patterson, D.D. Roby, Y. Suzuki, and P.J. Loschl. 2015. Caspian Tern migration and overwintering behavior in western North America. 2nd World Seabird Conference, Cape Town, South Africa.	October 2015	This paper demonstrates using satellite telemetry techniques that the Salton Sea is a crucial stop-over for Caspian Terns in the Pacific Flyway of North America as they migrate south to the wintering grounds.
Lyons, D.E., J. Tennyson, A. Patterson, D.D. Roby, Y. Suzuki, and P. Loschl. 2015. Initial Response of Caspian Terns to a Managed Reduction in Nesting Habitat. International Wildlife Management Congress, Sapporo, Japan.	July 2015	This presentation describes how breeding Caspian terns responded to the elimination of tern nesting habitat on two islands affected their subsequent nesting behavior.
Lyons, D.E., J. Tennyson, A. Patterson, D.D. Roby, Y. Suzuki, and P. Loschl. 2015. CASPIAN TERN RESPONSE TO NESTING HABITAT REDUCTIONS AT A MANAGED COLONY SITE IN EASTERN WASHINGTON, USA. 42n Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper suggests three types of initial response by Caspian Terns to nesting habitat reduction: (1) stay at the site and compete for reduced available habitat, (2) move to a nearby colony and attempt to nest there, returning to the colony of origin if nesting fails, and (3) nomadic wandering throughout the region, without a sustained association with any colony.
Lyons, D.E., J. Tennyson, A. Patterson, D.D. Roby, Y. Suzuki, P.J. Loschl, and K. Collis. 2014. Caspian tern response to management at Goose Island, Potholes Reservoir, as indicated using satellite telemetry. Avian Predation Workshop, Walla Walla, WA, 3 December. (Invited)	December 2014	This presentation summarizes the movements and dispersal from the largest breeding colony of Caspian terns in the Columbia Plateau region following the dissuasion and hazing of Caspian terns that formerly nested at the site.
Lyons, D.E., J. Tennyson, A. Patterson, D.D. Roby, Y. Suzuki, P.J. Loschl, and K. Collis. 2014. Caspian tern response to management at Goose Island, Potholes Reservoir, as indicated using satellite telemetry. 2014 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	December 2014	This paper demonstrated that the dispersal of Caspian terns from the former breeding colony on Goose Island, Potholes Reservoir did reduce the numbers of Caspian terns foraging in habitats where fish of conservation concern are vulnerable to predation.
Lyons, D.E., D.D. Roby, and K. Collis. Caspian tern predation on juvenile salmonids in the Columbia River Estuary: The salmon point of view. Oregon Chapter of the Wildlife Society Annual Meeting, 14 February, Gleneden Beach, OR.	February 2002
Lyons, D.E., D.D. Roby, and K. Collis. Assessing impacts of Caspian tern predation on juvenile salmonids in the Columbia River estuary. Pacific Seabird Group Annual Meeting, 22 February, Santa Barbara, CA.	February 2002
Lyons, D.E., D.D. Roby, and K. Collis. 2002. Using bioenergetics consumption estimates and matrix population models to evaluate impacts of Caspian terns on ESA-listed salmonids. Annual meeting of the Waterbird Society.	January 2003
Lyons, D.E., D.D. Roby, Y. Suzuki, J.Y. Adkins, and K. Collis. 2014. The plight of fish-eating birds: cormorants and endangered salmonids in western North America. 26th International Ornithological Congress, Tokyo, Japan.	August 2014	This study explores the factors that have contributed to increasing conflicts between fisheries management and piscivorous waterbirds, especially cormorants. Management to sustain multiple small colonies may result in more sustainable waterbird populations that are more acceptable to fisheries managers compared to a few large colonies.
Lyons, D.E., D.D. Roby, L.A. Weitkamp, R.L. Emmett, J.Y. Adkins, P.J. Loschl, and K. Collis. Climate effects on seabird-fisheries predator-prey interactions. 37th Annual Meeting of the Pacific Seabird Group, Long beach CA.	February 2010
Lyons, D.E., D.D. Roby, L.A. Weitcamp, J.Y. Adkins, P.J. Loschl, and K. Collis. Climate effects on the predator-prey relationship between piscivorous waterbirds and prey of conservation concern. Annual Meeting of the Waterbirds Society, Cape May NJ.	November 2009
Lyons, D.E., D.D. Roby, K.N. Fischer, C.D. Anderson, and K. Collis. Are good ocean conditions fueling continued growth of the double-crested cormorant population in the Columbia River estuary? Annual Meeting of the Oregon Chapter, The Wildlife Society, Bend OR, 13 February 2004.	February 2004
Lyons, D.E., D.D. Roby, K.N. Fischer, C.D. Anderson, and K. Collis. Are good ocean conditions fueling continued growth of the Columbia River estuary double-crested cormorant population? Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 22 January 2004.	January 2004
Lyons, D.E., D.D. Roby, K.N. Fischer, C.D. Anderson, C.L. Couch, and K. Collis. Cormorant predation on ESA-listed salmonids in the Columbia River estuary: an emerging conflict. Symposium on the Biology and Management of Double-crested Cormorants, Quebec City, Quebec, Canada, 16 August 2004.	August 2004
Lyons, D.E., D.D. Roby, K. Collis, and D.P. Craig. November 2000. Caspian tern predation on juvenile salmonids in the Columbia River estuary. Waterbird Society Annual Meeting.	November 2000
Lyons, D.E., D.D. Roby, K. Collis, and D.P. Craig. February 2001. Caspian tern predation on juvenile salmonids in the Columbia River Estuary. Pacific Seabird Group Annual Meeting.	February 2001
Lyons, D.E., D.D. Roby, K. Collis, and D.P. Craig. August 2001. Population bioenergetics modeling of double-crested cormorants in the Columbia River estuary. 119th Stated Meeting of the American Ornithologists' Union.	August 2001
Lyons, D.E., D.D. Roby, K. Collis, T.J. Lawes, K.S. Bixler, and A. Patterson. 2012. Build it and they will come? Assessment of a mitigation habitat network for Caspian terns. 19th Annual Conference of The Wildlife Society, Portland, OR.	October 2012	Assesses the success of management efforts to redistribute a portion of the breeding population of Caspian terns in western North America.
Lyons, D.E., D.D. Roby, K. Collis, K.N. Fischer, A.M. Myers, A. Evans, C.L. Couch, J.Y. Adkins, and M. Hawbecker. Avian predation in the Columbia River estuary: world's largest caspian tern and double-crested cormorant colonies. Annual meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	February 2005
Lyons, D.E., D.D. Roby, K. Collis, K.N. Fischer, A.M. Myers, A. Evans, C.L. Couch, J.Y. Adkins and M. Hawbecker. Avian predation on juveile salmonids in the Columbia River basin: determining priorities for investigation and potential management. Joint annual meeting of the Pacific Seabird Group and The Waterbird Society, Portland OR.	January 2005
Lyons, D.E., D.D. Roby, K. Collis, K.N. Fischer, A.M. Myers, A. Evans, C.L. Couch, J.Y. Adkins and M. Hawbecker. Avian predation in the Columbia River estuary: world's largest caspian tern and double-crested cormorant colonies. Annual meeting of the Oregon Chapter of the Wildlife Society, Corvallis OR.	February 2005
Lyons, D.E., D.D. Roby, K. Collis and D.P. Craig. February 2001. Diet and bioenergetics of double-crested cormorants in the Columbia River estuary. Joint annual meeting of the Oregon chapters of The Wildlife Society and the American Fisheries Society.	February 2001
Lyons, D.E., D.D. Roby, J.Y. Adkins, Y. Suzuki, K.N. Courtot, P.J. Loschl, T. Marcella, K. Collis, and A.F. Evans. Columbia River estuary double-crested cormorants: adaptive research for adaptive management? 2010 Columbia River Estuary Conference, Astoria OR.	May 2010
Lyons, D.E., D.D. Roby, J.Y. Adkins, L.H. Reinalda, and K. Collis. 2008. Trends in Avian Predation on Juvenile Salmonids in the Columbia River Estuary: BUffering by Marine Forage Fish. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Lyons, D.E., D.D. Roby, J.Y. Adkins, L.H. Reinalda and K. Collis. Relationships between the Nearshore Ocean Environment and Caspian Terns Nesting in the Columbia River Estuary. 125th Annual Meeting of the American Ornithologist Union, Portland OR.	August 2008
Lyons, D.E., D.D. Roby, J.Y. Adkins, A.F. Evans, and K. Collis. Predator-prey interactions between seabirds and salmonids: A global perspective. 1st World Seabird Conference, Victoria, B.C., Canada.	September 2010
Lyons, D.E., D.D. Roby, D.P. Craig and K. Collis. August 2000. Foraging ecology of Caspian terns in the Columbia River Estuary. 118th Stated Meeting of the American Ornithologists' Union.	August 2000
Lyons, D.E., D.D. Roby, A.F. Evans, N.J. Hostetter, and K. Collis. Evaluating benefits to ESA-listed salmonid populations from reductions in avian predation in the Columbia River basin. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 10 February.	February 2012
Lyons, D.E., D.D. Roby, A.F. Evans, N.J. Hostetter, and K. Collis. Benefits to Columbia River anadromous salmonids from potential reductions in avian predation on the Columbia Plateau. 2011 Annual Review for the Anadromous Fish Evaluation Program, Walla Walla, WA, 29 November.	November 2011
Lyons, D.E., D.D. Roby, A.F. Evans, L. Weitcamp, and T. Good. 2015. Challenges to quantifying the benefits to fisheries of cormorant management and population control.	August 2015	This study identifies a number of factors that can have a large effect on the efficacy of cormorant management to restore fish stocks of conservation concern.
Lyons, D.E., D.D. Roby and K. Collis. Potential management of double-crested cormorants in the Columbia River estuary. Fifth Annual Northwestern Division Wildlife Biology, Eugene OR.	January 2005
Lyons, D.E., D.D. Roby and K. Collis. February 2000. Foraging patterns of Caspian terns in the Columbia River Estuary. Oregon Chapter of The Wildlife Society annual meeting.	February 2000
Lyons, D.E., D.D. Roby and K. Collis. Caspian tern management and colony restoration on the Columbia River. Fifth Annual Northwestern Division Wildlife Biology Conference, Eugene OR.	January 2005
Lyons, D.E., D. D. Roby, Y. Suzuki, J.Y. Adkins, and L.H. Reinalda. Piscivorous seabirds in the Columbia River estuary: salmonid consumption on the rise? Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Lyons, D.E., A.F. Evans, N.J. Hostetter, D.D. Roby, K. Collis, P.J. Loschl, K.S. Bixler, A. Peck-Richardson, B. Cramer, J. Zamon, and D. Kuligowski. 2013. Measuring impacts of cormorant predation on smolt survival in the Columbia River estuary: Bioenergetics, PIT tag recoveries, and potential benefits from cormorant management. Anadromous Fish Evaluation Program Annual Review, Walla Walla, Washington.	December 2013	This study evaluates and quantifies the benefits from management of double-crested cormorants in the Columbia River estuary to juvenile salmonids from the Columbia Basin that are listed under the ESA.
Lyons, D.E., A. Peck-Richardson, D.D. Roby, and J. Lerczak. 2015. Tracking sympatric diving seabirds: Synergistic identification of foraging habitat niches and mapping of physical oceanographic parameters. 2nd World Seabird Conference, Cape Town, South Africa.	October 2015	This paper reports on a novel study funded by the Office of Naval Research that uses state-of-the-art GPS and TDR monitoring devices to record the diving behavior, foraging habitat use, and bathymetry of two sympatric species of cormorants in a dynamic estuarine system.
Lyons, D.E., A. Peck-Richardson, D.D. Roby, and J. Lerczak. 2015. Mapping characteristics of the Columbia River mouth using diving seabirds fitted with archival GPS and sensor tags. Willamette Valley Bird Symposium, Corvallis, OR, 24 January. (Poster)	January 2015	This presentation demonstrates the efficacy of using nesting cormorants to help map the hydrology and physiognomy of estuaries and river mouths, geographic features that are notoriously difficult to study.
Lyons, D.E., A. Peck-Richardson, D.D. Roby, and J. Lerczak. 2014. Mapping physical characteristics of the Columbia River mouth using diving seabirds fitted with archival GPS and sensor tags. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	Study demonstrates the use of cormorant to collect physical oceanography data at river mouths and estuaries.
Lyons, D.D., D. D. Roby, J.Y. Adkins, and L.H. Reinalda. When do alternative prey buffer avian predation on juvenile salmonids in the Columbia River estuary? 9th Annual Salmon Ocean Ecology Meeting, Hatfield Marine Science Center, Newport OR.	March 2007
Lyons*, D.E., D.D. Roby, J.Y. Adkins, L.H. Reinalda, P.J. Loschl, and K. Collis. 2009. Relationships between ocean conditions and the population dynamics of estuarine piscivorous birds in the California Current. 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 24 February.	February 2009
Lyons*, D.E., D.D. Roby, J.Y. Adkins, L.H. Reinalda, P.J. Loschl, and K. Collis. 2009. Relationships between climate and population size of piscivorous birds in the Columbia River estuary. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 12 February.	February 2009
Lupes, S.C., M.W. Davis, B.L. Olla, and C.B. Schreck. February 18, 2004. Capture-related stressors impair sablefish immune system function: implications for discard mortality. Presentation at the Annual Meeting of the Oregon Chapter of the American Fishery Society.	February 2004
Lunda, E., J.T. Peterson, and A. Duarte. 2023. Habitat use of anadromous sturgeon in North America: a systematic review. Oregon Chapter of the American Fisheries Society Annual Meeting, Feb 28-Mar 3.	March 2023	The goal of this research is to synthesize information across species of anadromous sturgeon throughout North America to identify species-specific knowledge gaps and do a quantitative comparison of species- habitat relationships across species and geographic regions.
Lunda, E., J.T. Peterson, A. Duarte., and T. Swannack. 2023. Characterizing the effects of environmental variability and individual biological characteristics on green sturgeon recruitment success. Oregon Chapter of the American Fisheries Society Annual Meeting, Feb 28-Mar 3	March 2023	This research will aim to understand how environmental variability, individual behavior, and biological characteristics impact recruitment success of juvenile green sturgeon, all while accounting for the great uncertainty regarding the species.
Lovvorn, J.R., K.J. Kuletz, M.L. Brooks, E.A. Labunski, L.W. Cooper, D.D. Roby, L.M. Sheffield and I.C. Rose. 2008. Spatial Relations between Foraging Auklets, Zooplantkton, Primary Production and Converging Water Masses in the Northern Bering Sea. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Lovtang, J.C. and H.W. Li. 2005. Water temperature, invertebrate drift, and the scope for growth for juvenile spring chinook salmon. Annual meeting of the North American Benthological Society Joint Assembly with the American Geophysical Union, New Orleans LA.	September 2005
Lovtang, J.C. and H.W. Li. 2005. Strategies for survival: habitat use and distribution of juvenile chinook salmon in the Metolius River Basin, Oregon. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
Lovtang, J. and H.W. Li. 2003. Seasonal distribution and habitat associations of juvenile spring chinook salmon in the Metolius River Basin, Oregon. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Lovtang, J. and H. Li. The relative qualitat of habitat: juvenile chinook salmon in the Metolius River basin, Oregon. 40th annual meeting of the Oregon Chapter of the American Fisheries Society, Sun River OR, 18 February 2004.	February 2004
Loschl, P.J., D.D. Roby, B. Cramer, K. Collis, and D.E. Lyons. 2016. Caspian Tern responses to non-lethal management in the Columbia Plateau Region, USA. 43rd Annual Meeting of the Pacific Seabird Group, Oahu, Hawaii.	February 2016	This presentation indicates that while the combination of passive and active dissuasion can reduce or eliminate Caspian Tern breeding at managed sites, if suitable alternative habitat is available, breeding dispersal can occur within the region, and potentially offset reduced predation rates on salmonids at managed sites.
Loschl, P.J., D.D. Roby, A. Turecek, M. Hawbecker, J. Tennyson, and D.E. Lyons. 2015. USE OF DIGITAL AERIAL IMAGERY AND ONLINE GIS TO ESTIMATE COLONY SIZE AND AREA FOR GROUND-NESTING SEABIRDS: BETTER TOOLS FOR MONITORING SEABIRD POPULATIONS. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper describes and new and more efficient process for obtaining accurate estimates of colony size for seabirds nesting in large, dense colonies on the surface of islands.
Loschl, P.J., A. Evans, D.D. Roby, and B. Cramer. Brandt’s Cormorants on East Sand Island: Nest numbers, diet, and space use in a mixed species breeding colony. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8 February.	February 2012
Loomis, D, KM Dugger, MB Berg, and CS Zack. 2011. Reproductive Success and Foraging Ecology of the Rusty Blackbird on the Copper River Delta. The Wildlife Society Annual Conference, Waikoloa, HI, November 5-10, 2011.	November 2011
Loegering, J.P., and R.G. Anthony. February 2000. Foraging ecology of breeding American dippers: Prey use, prey partitioning, and the provisioning of young. Oregon Chapter of The Wildlife Society annual meeting.	February 2000
Loegering, J.P. and R.G. Anthony. September 2000. Foraging ecology of breeding American dippers: Prey use, prey partitioning, and the provisioning of young. The Wildlife Society 7th Annual Conference.	September 2000
Liu, C.C., S. Heppell, H. Li. M. Adams, C. Pearl, and J. Jorgensen. Models to qualify the impacts of exotic species on native red-legged frogs (Rana aurora). American Society of Ichthology and herpetology, Norman OK, 1 May 2004.	May 2004
Lindeman, A., C.B. Schreck and S. van de Wetering. Impacts of herbicides on Pacific Lamprey (Lampetra tridentata) olfaction. Annual meeting of the Oregon Chapter of the American Fisheries Society, February 22-25, Bend OR.	February 2011
Li, J.L., S.L. Johnson, H.W. Li, C. Frady, G. Shippentower, and W. Gerth. 2002. What a difference a day makes! A diel study of rainbow trout diet in the Imnaha River Basin. Oregon Chapter of the American Fisheries Society, 27 Feb - 1 Mar, Sunriver OR.	February 2002
Li, J.L., H.W. Li, and S.L. Johnson. 2003. Linking streams and the land. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Li, H.W., K.P. Currens, J.D. McIntyre, D.R. Montgomery, and D.W. Reiser. April 2001. Independent Science Panel's recommendations for monitoring salmonid recovery in Washington State. Northwest Chapter of the Society for Ecological Restoration.	April 2001
Li, H.W., K. Gamperl, and K. Rodnick. June 2001. Landscapes and patches: Implications for home range, distribution and thermal adaptation of redband trout (ONCORHYNCHUS MYKISS). North American Benthological Society Meeting.	June 2001
Li, H.W., J.M. Dambacher, R. Gresswell, D.A. Beauchamp, J.R. Ruzycki, and P.A. Rossignol. SAugust 1999. tephen Forbes, risk analysis and pests in trout systems. 129th Annual Meeting of the American Fisheries Society.	August 1999
Li, H.W., G. Shippentower, J.L. Li, C. Schreck, and C. Frady. 2002. Long-term and short-term effects of stomach pumping on rainbow trout. Oregon Chapter of the American Fisheries Society, 27 Feb - 1 Mar, Sunriver OR.	February 2002
Li, H.W., C.E. Torgersen, C. Baxter, and K. Fausch. 2003. The Riverscape: a perspective of restoration of wild fishes in the Pacific Northwest. Annual meeting of the American Fisheries Society.	January 2003
Li, H.W. and B. Hughes. February 2001. Convened on the session on Invasive Alien Species for the Oregon American Fisheries Society.	February 2001
Li, H.W. Science, Washington's Salmon Recovery Plan, and the SF 49ers: A Synthesis. Oregon Chapter of the American Fisheries Society, 27 Feb - 1 March 2002. Sunriver OR.	February 2002
Li, H.W. November 2000. John Day and Grande Ronde River Comparisons: Evidence for breaching Snake River dams, Ridge top to Ridge top. OWEB Symposia.	November 2000
Li, H.W. 2003. The riverscape: a strategic perspective of stream and riparian restoration. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Li, H.W. 2003. Kansas State Department of Biology, The value of qualitative mathematical models in adaptive management of natural resources.	January 2003
Li, H.W. 2003. A tale of two watersheds: evidence for breaching the Snake River Dams.	January 2003
Lescroël, A, A Schmidt, DG Ainley, KM Dugger, M Elrod, D Jongsomjit, V Morandini. 2023. Longitudinal, full-annual cycle study of Adélie penguin foraging behavior reveals within-individual changes with age. 11th International Penguin Congress, 4-9 September, 2023, Vina del Mar, Chile.	September 2023	We used high-temporal-resolution tracking data for Adélie penguins of known-age (4-18 yrs old) over three consecutive annual cycles to examine how foraging behavior changed within individuals of different age classes. We observed decreased foraging performance at the later ages (from 15+ years) than the onset of senescence predicted for this species (9-11 yr. old).
Lescroel, A., G. Ballard, K. M. Dugger, D. Gremillet, S. Jennings, P.O’B. Lyver, M. Massaro, A. Pollard, E. Porzig, A. Schmidt, and D.G. Ainley. 2016. Tracking Adélie penguins throughout their lives: how do inter-individual differences in foraging ecology translate into demographic differences? 9th International Penguin Conference, Cape Town, South Africa, September 5-9, 2016.	September 2016	We put telemetry devices on known-age Adélie Penguins to monitor foraging behavior and energy expenditure during the breeding season. We used these data in conjunction with long-term longitudinal data on these birds to understand how a minority of individuals consistently achieve higher breeding success than other birds; thereby achieving higher lifetime fitness.
Lescroel, A., G. Ballard, K. M. Dugger, D. Gremillet, S. Jennings, P.O’B. Lyver, M. Massaro, A. Pollard, E. Porzig, A. Schmidt, and D.G. Ainley. 2015. Tracking Adélie penguins throughout their lives: how do inter-individual differences in foraging ecology translate into demographic differences? 2015 World Seabird Conference, Cape Town, South Africa, October 26-31, 2015.	October 2015	We put telemetry devices on known-age Adélie Penguins to monitor foraging behavior and energy expenditure during the breeding season. We used these data in conjunction with long-term longitudinal data on these birds to understand how a minority of individuals consistently achieve higher breeding success than other birds; thereby achieving higher lifetime fitness.
Lerner, D.T., T.P. Stahl, C. Seals, L.E. Davis, and C.B. Schreck. March 2000. Stress Endocrinology of Juvenile Salmonids: Predicting health and performance during migration in the Columbia River. Western Regional Conference on Comparative Endocrinology.	March 2000
Lerner, D.L., M. Fitzpatrick, and C.B. Schreck. January 2000. Developing a tagging protocol for out migrant juvenile lamprey, Lampetra tridentata. Oregon Chapter, American Fisheries Society.	January 2000
Leblanc, C.A., J.D. Romer, S. Clements, D.L.G. Noakes and C.B. Schreck. Seasonality and sizes of salmonid smolts (Oncorhynchus spp.) in Fall Creek, Oregon. 8th International Workshop on Smoltification, September 20-24, Corvallis OR.	September 2011
Leblanc, C.A., J.D. Romer, S. Clements, D.L.G. Noakes and C.B. Schreck. Seasonality and Sizes of Salmonid Smolts (Oncorhynchus spp.) in Fall Creek, Oregon. 8th International Workshop on Smoltification, Corvallis OR. POSTER	September 2010
Leblanc, C., J. Romer, S. Clements, D. Noakes and C. Schreck. Seasonality and Sizes of Salmonid Smolts (Oncorhynchus spp.) in Fall Creek, Oregon. Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February. POSTER	February 2010
Lawonn, M.J., D.D. Roby, J.F. Piatt, and W. Pyle. Searching for a shadow’s shadow: Kittlitz’s Murrelets nesting in unglaciated alpine habitat on Kodiak Island, Alaska. Fifth North American Ornithological Conference, Vancouver, B.C., 17 August.	August 2012
Lawonn, M.J., D.D. Roby, J.F. Piatt, W.H. Pyle, and R.R. Corcoran. 2013. How the breeding ecology of Kittlitz’s Murrelet makes sense (sometimes): The benefits of high-quality forage and rapid chick growth on nest survival and adult fitness. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study describes the unique and heretofor poorly understood breeding biology of the Kittlitz's murrelet, a seabird species of conservation concern that lays it single egg on the surface of alpine scree slopes.
Lawonn, M.J., D.D. Roby, J.F. Piatt, R.R. Corcoran, and W. Pyle. Kittlitz’s Murelets nesting in unglaciated alpine habitat on Kodiak Island, Alaska: Unraveling parts of the mystery. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8 February.	February 2012
Lawes, T.J., K.S. Bixler, D.D. Roby, D.E. Lyons, P.J. Loschl, and Y. Suzuki. 2017. Life in the big city - Caspian Terns in the Salish Sea Region. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation describes how Caspian Terns have shifted their breeding colony sites from natural islands and sandpits to building rooftops and shoreside vacant lots as the shoreline of Puget Sound has become increasingly developed.
Lawes, T.J., G.H. Smith, D.D. Roby, D.E. Lyons, K.S. Bixler, and Y. Suzuki. 2015. IMPACTS OF DROUGHT ON CASPIAN TERN COLONY RESTORATION IN SEMI-ARID LANDSCAPES OF EASTERN OREGON AND NORTHERN CALIFORNIA. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This study shows that Caspian tern colony sites in the interior of western North America that are intended to compensate for loss of nesting habitat along the coast are periodically subject to drought conditions that make them temporarily unsuitable as nesting sites.
Lawes, T.J., D.E. Lyons, D.D. Roby, J. Tennyson, and A.G. Patterson. 2016. Leg-loop harness as a long duration attachment method for telemetry tags on a plunge-diving seabird. 43rd Annual Meeting of the Pacific Seabird Group, Oahu, Hawaii.	February 2016	This presentation describes a techniques for attaching solar-powered satellite tags to adult Caspian Terns that is long-lasting and appears to minimally interfere with normal behavior of breeding adults.
Lawes, T.J., D.D. Roby, D.S. Battaglia, and M. Hawbecker. It pays to have a good data plan – Monitoring seabird colonies using solar powered camera systems with remote data access and real-time video streaming. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8-10 February.	February 2012
Lawes, T.J., D.D. Roby, D.S. Battaglia, and M. Hawbecker. 2015. It pays to have a good data plan: Monitoring seabird colonies using solar powered camera systems with remote data access and real-time video streaming. Willamette Valley Bird Symposium, Corvallis, OR, 24 January. (Poster)	January 2015	This presentation demonstrates the utility and versatility of remote video camera monitoring of seabird colonies as a mean to assess the status and productivity of those colonies.
Lawes, T.J., D.D. Roby, D. Lyons, Y. Suzuki, K.S. Bixler, and A. Evans. 2014. So far, thanks for all the carp – Caspian Terns at Malheur National Wildlife Refuge, Oregon. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This study describes the successful restoration of a Caspian tern breeding colony on a recently constructed island in Malheur Lake, where nesting terns are feeding primarily on juvenile common carp, an invasive species in the lake.
Lawes, T. J., R. G. Anthony, and W. D. Robinson. Movements and homing in pygmy rabbits after experimental translocation in southeastern Oregon. Annual Conference of The Wildlife Society, Monterrey, CA, 22 September.	September 2009
Larson, M., C. Couch, C. Murphy, M. Kent, and J. Peterson. 2023. Diet and Philonema infections in reservoir-rearing juvenile Chinook Salmon. Oregon Chapter of the American Fisheries Society Annual Meeting, Feb 28-Mar 3	March 2023	The purpose of this study was to analyze dietary patterns of wild juvenile Chinook salmon from Lookout Point Reservoir. Our main objective was to assess relationships between prey consumption, surface temperature, and fish size.
Larson, K.W., D.P. Craig, Y. Suzuki, and D.D. Roby. 2008. A Geographic Analysis of Caspian Tern Band Encounters in the Americas, 1922-2007. 35th Annual meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Lampman, R.T., C.B. Schreck, S. Moyers and F. Carr. Pacific lamprey and hyporheic exchange: a potential universal driver in dam passage, migration and habitat use in the North Umpqua Subbasin. Annual meeting of the Oregon Chapter of the American Fisheries Society, February 22-25, Bend OR.	February 2011
Lampman, R.T., C. Schreck, S. Moyers and F. Carr. Cryptic Nature of Pacific Lamprey in North Umpqua River: Dam Passage, Habitat Use, and More! Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February.	February 2010
Lampman, R.T., C. Schreck and S. Kusuda. Lessons Learned from the Demise of the Japanese Arctic Lamprey. Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February. POSTER	February 2010
Lampman, R. and C.B. Schreck. Habitat use of pre-spawning adult Pacific lamprey at three spatial scales in North Umpqua River, Western Oregon, USA. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
LaRue, M.L., D.J. Stouder, J.L. Li, and H.W. Li. February 2001. Land use and drought: A fish eye view. Oregon Chapter of the American Fisheries Society.	February 2001
LYONS, D.E., T.J. LAWES, Y. SUZUKI, P.J. LOSCHL, and D.D. ROBY. 2016. RESPONSE OF INDIVIDUAL CASPIAN TERNS TO NESTING HABITAT MANAGEMENT IN THE PACIFIC NORTHWEST. 50th Annual Meeting of the Oregon Chapter of The Wildlife Society, Seaside, Oregon.	February 2016	This presentation describes the responses of individual satellite-tagged Caspian Terns whose former nesting habitat has been made unsuitable for nesting. Three different types of responses to nesting habitat loss were documented.
LESCROËL, A. G BALLARD, KM DUGGER, M MASSARO, PO’B LYVER, and DG AINLEY. 2013. Extrinsic and intrinsic factors affecting foraging efficiency in Adélie penguins. XI Biology Symposium of the Scientific Committee on Antarctic Research. Barcelona, Spain, July 2013	July 2013	This work investigates the relationship between foraging behavior of Adelie penguins to intrinsic demographic factors like age and sex, and extrinsic environmental variation, including climate change.
Körner, L., R.C. Baumbusch, K.M. Dugger, and J.D. Wiens. 2020. Morphology of the barred owl (Strix varia) in the Pacific Northwest. 67th Annual Meeting of The Western Section of The Wildlife Society, February 3-7, 2020, Redding, CA.	February 2020	We used specimens collected as part of a large-scale removal experiment to test whether barred owls in their new range exhibited a latitudinal gradient in body size or reversed sexual size dimorphism. Preliminary results suggest significant differences in size between sexes (with females larger than males) and age classes (adults larger than subadults), and some differences between study areas but without a consistent latitudinal gradient.
Kusaka, C., M. Davis, and J.T. Peterson. 2023. Spatial Analysis of Trends in Tufted Puffin Breeding Habitat on the Oregon Coast. Pacific Seabird Group 50th Annual Meeting, Feb. 15-17, La Jolla, CA	February 2023	We conducted a spatial analysis to examine the distribution of suitable breeding habitat for tufted puffins on the Oregon Islands National Wildlife Refuge, OR, USA. Preliminary results suggest a decrease in the percent cover of live vegetation at critical breeding habitat.
Kusaka, C., M. Davis, and J.T. Peterson. 2022. Spatial Analysis of Trends in Tufted Puffin Breeding Habitat on the Oregon Coast. 7th Annual Science Of The Service Meeting. April 20, 2022.	April 2022	Tufted puffins (<i>Fratercula cirrhata</i>) are an iconic species in the Pacific Northwest that provide a wide range of ecological, economic, and historically important services such as ecotourism for local communities- and bringing marine derived nutrients to terrestrial habitats.
Kusaka, C, MJ Davis, and JT Peterson. 2025. Roots and Roosts: Examining Seabird Burrow Abundance in Relation to Invasive Plants. Waterbird Society and Pacific Seabird Group Joint Meeting, San Jose, Costa Rica.	January 2025	This work demonstrates links between burrow nesting seabird nesting locations and specific, fine-scale habitat features in Oregon Islands National Wildlife Refuge. It will directly inform invasive plant species management by USFWS Refuge managers.
Kurnianto, S., J.T. Peterson, J. Selker, J.B. Kauffman, D. Murdiyarso. 2016. The impact of land cover change on the hydraulic conductivity in tropical peatlands. 15th International Peat Congress. August 15-19 Kuching, Sarawak, Malaysia.	August 2016	Hydraulic conductivity is one of the most important parameters that describe peat properties related to water movement through the peat profile. Here we estimate changes in peat properties in response to land-cover change in West Kalimantan, Indonesia.
Kurnianto S., Peterson J., Selker J., Murdiyarso D., Kauffman J. 2017. Variablity of hydraulic conductivity in tropical peatlands. 125th Anniversary Congress 2017. 18-22 September 2017. Freiburg Germany.	September 2017	We evaluated the horologic properties of peat using novel techniques.
Krentz, L., H. Li, I. Fleming, K. Jones and T. Cornwell. Habitat use and movement of sea-run cutthroat trout in the Salmon River estuary. 40th annual meeting of the Oregon Chapter of the American Fisheries Society, Sun River OR, 18 February 2004.	February 2004
Klein, K.J., R.G. Anthony and G.S. Olson. Selection of settlement location by dispersing Washington ground squirrels. 84th Annual Meeting of the American Society of Mammalogists, Arcata CA, 15 June 2004.	June 2004
Klein, K.J., R.G. Anthony and G.S. Olson. Dispersal patterns of Washington ground squirrels in northcentral Oregon. Annual meeting of the Oregon Chapter of The Wildlife Society, Corvallis OR.	February 2005
Kent, M.L., T. M. Polley, C.J. Schuster, M. E.T. Stinson, C. E. Couch, J.T. Peterson and C. B. Schreck. 2024. Intestinal Disease in Adult Chinook Salmon: Geographic distribution, links to prespawn mortality and potential causes. Annual meeting of the Oregon Chapter of the American Fisheries Society. Feb 26- Mar 1, Bend OR	February 2024	Since 2009 we have been studying pathologic changes in adult Chinook Salmon in the Willamette River systems and their links to prespawn mortality (PSM). Fish in the river show a progression of intestinal disease through the summer through spawning. Intestinal lesions are characterized by degeneration and ulceration of the epithelium with concurrent severe inflammation in the lamina propria of the intestine and pyloric caeca
Kent, M.L., C.B. Schreck, C. Herron, and J.T. Peterson. 2016. Salmon life histories and environment effect modes of transmission of pathogens. 52nd Annual Meeting of American Fisheries Society Oregon Chapter. March 1-4, Seaside, Oregon.	March 2016	The vast majority of our understanding of pathogen virulence and transmission has been gleaned from research of captive (e.g., hatchery) salmon during their freshwater development. Hatcheries have been around for only 100 years or so, but salmon have co-evolved with their pathogens much longer, perhaps tens of millions of years. We will discuss examples of alternate modes of transmission and severity of disease, contrasted to their presentations in a hatchery situation.
Kent, M.L., Benda, S.E., and Schreck, C.B. Pathogens and en route/prespawning mortality in Chinook salmond in the Willamette River, Oregon. International Congress on the Biology of Fish, Madison, Wisconsin, July 2012.	July 2012
Kent, M.L., A.R. Schwindt, N. Truelove, C.B. Schreck, J.W. Fournie, and D.H. Landers. 2005. Quantitative evaluation of macrophage aggregates in brook trout (Salvelinus fontinalis) and rainbow trout (Oncorhynchus mykiss). Western Fish Disease Conference, Boise ID.	September 2005
Kent, M., S.E. Benda and C.B. Schreck. Pathoges and en route/prespawning mortality in Chinook salmon in the Willamette River Oregon. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
Kent, M., C. Schreck, T. Sharpton. Progression of infection of Ceratomyxa shasta and Parvicapsula minibicornis in adult Chinook salmon. American Society of Parasitology. New Orleans, LA. July 24, 2014.	July 2014	Pre-spawning mortality (PSM) is common Pacific salmon after they return to freshwater to spawn. We are investigating causal relationships between pathogens and PSM in Chinook salmon (Oncorhynchus tschawytscha).
Kennedy, K, MJ Davis, and C Zambory. 2024. Sticks and stones vs. sensors: comparing methods of quantifying juvenile salmonid habitat across spatial scales. 154th Meeting of the American Fisheries Society, Honolulu, Hawaii.	September 2024	This presentation highlights potential redundancies in the collection of habitat monitoring data and demonstrates the importance of "sticks and stones" approaches to monitoring efforts for juvenile salmonids.
Kennedy, K, MJ Davis, C Zambory. 2024. Quantifying and defining habitat suitability at multiple scales for Oregon Coast juvenile Oncorhynchus mykiss and Oncorhynchus kisutch. Oregon American Fisheries Society 2024 Annual Conference, Bend, Oregon.	February 2024	This research was conducted in cooperation with Oregon Department and Fish and Wildlife, and outlines habitat features that promote the coexistence of juvenile coho salmon and steelhead.
Kelly, E., E.D. Forsman, and R.G. Anthony. February 2001. The distribution and status of the northern barred owl in Oregon and its potential impact on spotted owls in Oregon and Washington. Joint annual meeting of the Oregon chapter of The Wildlife Society and American Fisheries Society.	February 2001
Kappes, P., K.M. Dugger, A. Lescroël, D. Ainley, G. Ballard, and P. O'B. Lyver. 2019. DECOMPOSING AGE-SPECIFIC REPRODUCTIVE PERFORMANCE IN A META-POPULATION OF ADÉLIE PENGUINS: COLONY SIZE MATTERS. 46th Annual Meeting of the Pacific Seabird Group, Kauai, HI, 27 Feb - 2 March, 2019	February 2019	We used a long-term mark-resighting data set of known-age Adélie Penguins to decompose the individual- (within-individual change) and population-level (selective appearance and disappearance) processes that resulted in observed patterns of age-specific breeding performance of at three different- sized colonies of breeding penguins. Overall improvement in performance with age was due to both selective disappearance and within-individual improvement at the two smaller colonies, and exclusively th
Kappes, P. J., K. M. Dugger, G.Ballard, D.G. Ainley, P.O’B. Lyver, K.J. Barton, A.D. Fraser, and R.A. Massom. 2015. Estimating annual reproductive performance of known-age Adélie Penguins: An exploration of life history theory. 2015 World Seabird Conference, Cape Town, South Africa, October 26-31, 2015.	October 2015	We used a 20-year mark-resighting data set on known-age Adélie Penguins to investigate patterns in age-based fecundity. Our study encompassed a range of sea ice conditions to investigate hypotheses proposed to explain age-based fecundity patterns and provide estimates to parameterize an agent-(individual-) based population model of the Ross Island, Antarctica Adélie penguin metapopulation.
Kappes, P. J., K. M. Dugger, G. Ballard, D. G. Ainley, P.O’B. Lyver, K. J. Barton, A. D. Fraser, and R. A. Massom. 2017. Estimating annual and lifetime reproductive performance of known-age Adélie penguins: An exploration of life history theory. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, WA, 22-25 February, 2017	February 2017	We used a 20-year mark-resighting data set of known-age Adélie Penguins to investigate patterns in individual age-based fecundity and lifetime reproductive success. Our study encompassed a range of sea ice conditions, including extremes in sea ice conditions, in order to investigate hypotheses proposed to explain age-based fecundity patterns and lifetime reproductive performance.
Kappes, P. J., K. M. Dugger, G. Ballard, D. G. Ainley, P.O’B. Lyver, K. J. Barton, A. D. Fraser, and R. A. Massom. 2016. Estimating annual and lifetime reproductive performance of known-age Adélie penguins: An exploration of life history theory. 9th International Penguin Conference, Cape Town, South Africa, September 5-9, 2016.	September 2016	We used a 20-year mark-resighting data set of known-age Adélie Penguins to investigate patterns in individual age-based fecundity and lifetime reproductive success. Our study encompassed a range of sea ice conditions, including extremes in sea ice conditions, in order to investigate hypotheses proposed to explain age-based fecundity patterns and lifetime reproductive performance.
Kameda, K.O., D.D. Roby, D.N. Carss, and L.R. Wires. 2015. Towards sustainable, knowledge-based cormorant management: combining learning and experiences from North America, Europe, and Japan. Vth International Wildlife Management Congress, Sapporo, Japan, 27 July. (Invited)	July 2015	This presentation summarized the background and rationale for holding an international symposium on sustainable, knowledge-based cormorant management as part of the International Wildlife Management Congress.
Jongsomjit, D, A Lescroël, A Schmidt, S Lisovski, D Ainley, E Hines, M Elrod, KM Dugger, and G Ballard. 2023. Going with the floe: Sea-ice movement affects distance and destination during Adélie penguin winter movements. 11th International Penguin Congress, 4-9 September, 2023, Vina del Mar, Chile.	September 2023	Using remotely sensed ice data and geolocation-based penguin movement data, we found that penguins traveled greater distances when their movement directions aligned with those of the sea ice. In addition, the movement of sea ice facilitated penguin movements but the degree of help from sea ice depended on the penguin’s migration route between wintering areas on the sea ice and breeding colonies on Ross Island, Antarctica.
Jones, M.S. (2024, February 7). Leveraging Social Science to Support Equitable and Inclusive Conservation Practices. North American Duck Symposium, Portland Oregon.	February 2024	Diversity, equity, inclusion and justice are challenging but important topics for conservation and natural resource management agencies. This talk will focus on how findings from social science research can support practitioners' efforts to adapt their own and their organizations' practices to navigate changing social needs.
Jones, M.S. & Rizzolo, J. (2024, June 23-28). Integrating Climate Conversations into Conservation Science & Practice. North American Congress for Conservation Biology 2024. Vancouver BC.	June 2024	Climate change is changing many conservation practitioners' and managers' jobs. Yet many of us struggle to talk about it. This knowledge café offers shared space to discuss how social science can inform individual and collective climate actions for conservation.
Jones, M. S., Sekar, S., Dillard, C., & Sparkman, G. (2022, June 16-17). Let's talk about meat: Why people do or don't promote sustainable diets to others [Paper presentation]. American Psychology Association Division 34 Online Conference. https://www.apadivisions.org/division-34/news-events/online-conference-2022	June 2022	This research addresses two gaps in the current literature on pro-environmental behavior: 1) we identify factors that motivate individuals to reach out to others to facilitate relational organizing, and 2) we determine the relative importance of social-psychological factors influencing participation in relational organizing. By developing an integrative theoretical model, we will inform the efforts of numerous nonprofit and public organizations seeking to harness the power of relational organiz
Jones, M. S., Sekar, S., Dillard, C., & Sparkman, G. (2022, July 16-20). Why people do (or don’t) talk to others about conservation behavior: an assessment of sustainable diets [Paper presentation]. North American Congress for Conservation Biology 2022. Rena, Nevada, United States. https://scbnorthamerica.org/index.php/naccb-2022/	July 2022	This research addresses two gaps in the current literature on pro-environmental behavior: 1) we identify factors that motivate individuals to reach out to others to facilitate relational organizing, and 2) we determine the relative importance of social-psychological factors influencing participation in relational organizing. By developing an integrative theoretical model, we will inform the efforts of numerous nonprofit and public organizations seeking to harness the power of relational organiz
Jones, Lischka, Niemiec. (2022, October 17). Community ambassadors for collective action: Opportunities to scale up behavior change to reduce human-bear conflict. International Human-Bear Conflict Workshop, Reno Nevada.	October 2022	This research has the potential to inform wildlife managers' understanding of the human dimensions factors related to human-bear conflict. It will discuss outreach and education implications of current scenarios.
Johnson, M., et al. (2015). Saltwater Readiness, Growth and Survival of Triploid Summer Steelhead Oncorhynchus mykiss. 145th Annual meeting American Fisheries Society.	August 2015	. Relatively little research has evaluated effects of triploidy on free-ranging anadromous salmonids, though adult returns for several species have proven discouraging.
Johnson, B.E., R.G. Anthony, P. Coe, S. Lindholtz, and J.S. Noyes. Survival of calf elk and causes of mortality in Sled Springs and Wenaha Wildlife Management Units, A progressive report. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Johnson, B. K., R. G. Anthony, P. K. Coe, J. G. Cook, R. C. Cook, S. L. Findholt, J. H. Noyes, and S. N. Rearden. Top-down or bottom-up: What drives calf elk survival in northeastern Oregon? Annual Conference of The Wildlife Society, Monterey, CA, 21 September.	September 2009
Jodice, P.G.R., and D.D. Roby. Nutritional stress in Alaska seabirds: A review of the evidence. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 22 January 2004.	January 2004
Jodice, P.G.R., D.D. Roby, and K.R. Turco. August 2001. Is kittiwake reproduction constrained by food quality in the northern Gulf of Alaska? Revisiting the junk food hypothesis. 119th Stated Meeting of the American Ornithologists' Union.	August 2001
Jodice, P.G.R., D.D. Roby, R.M. Suryan, D.B. Irons, and M. Kaufman. August 2000. Isotopes meet megahertz: Using doubly labeled water and radio telemetry to link field metabolic rates and behavior of black-legged kittiwakes. 118th Stated Meeting of the American Ornithologists' Union.	August 2000
Jodice, P.G.R., D.D. Roby, R.M. Suryan, D.B. Irons, G.H. Visser, M. Kaufmann, and K.R. Turco. Effects of foraging behavior and time-activity budgets on field metabolic rates of Black-legged Kittiwakes. Pacific Seabird Group Annual Meeting, 21 February, Santa Barbara, CA.	February 2002
Jodice, P.G.R., D.D. Roby, D.B. Irons, R. Suryan, and H. Visser. January 2000. Parental energy expenditure of black-legged kittiwakes in Prince William Sound. Exxon Valdez Oil Spill Restoration Workshop.	January 2000
Jepsen, D.B., C.B. Schreck, S.P. Clements, and M.D. Karnowski. 2003. Movement patterns of juvenile salmonids in the lower Columbia River and estuary: results from radio-telemetry. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Jensen, A.J., B. Cox, and J.T. Peterson. 2021. Simulations of a Mixed-Stock Salmon Fishery Provide Fish Behavioral Insights and Evaluate Harvest Models. Oregon Chapter of the American Fisheries Society Annual Meeting, March 3-5	March 2021	Management of mixed-stock recreational fisheries presents challenges in balancing fishery access and conservation of vulnerable stocks. We sought to improve accuracy for both snapshot estimates of cumulative harvest and harvest trajectories over time.
Jensen, A., J. Peterson, and C. Schreck. 2018. Differentiating Chinook Salmon from a Mixed Stock Fishery to Distinct Life Histories Using Morphometric Analysis. Annual Meeting of the Oregon Chapter of the American Fisheries Society, Eugene OR	March 2018	We used standardized images captured from landed Chinook during the 2017 Buoy 10 fishery to evaluate the potential for morphometrics to distinguish between life history groups. In the absence of confirmed genetic identities, we used hierarchical and k-means cluster analysis with pre-specified body measurements to determine the presence of distinct groups of fish; measurements were generated using a truss-based approach.
Jensen, A., C. Schreck, and J.T. Peterson. 2019. Novel Chinook salmon stock discrimination in recreational fishery management. Annual Meeting of the American Fisheries Society, Reno NV.	September 2019	We explored the value of several measurement types in discriminating among three stock groupings in the Buoy 10 fishery: lower river tules, upriver brights, and select area brights. We conducted opportunistic sampling of recreationally-landed fish from 2017 and 2018, conducted genetic stock identification to assign fish to stock, and collected data on four potential differences between groups: body morphology, color, distribution of spotting patterns, and fat content.
Jensen, A. and J. Peterson. 2020. What can creel data tell us about angling behavior in a recreational salmon fishery? Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-6, Bend, OR.	March 2020	We integrate analysis of total angling effort and angling effort allocation in the Columbia River salmon fishery using a regression model with both a Poisson distribution for participation and multinomial distribution for site choice. We examine the influence of pre-season decision-making, tradition, weather, and fishing quality on total effort, and explore the role of site-specific fishing quality on site choice.
Jensen, A, C.B. Schreck, S. Bohn, K. O’Malley, J.T. Peterson. 2019. A story of tags, fins, and simulations: How integrating genetics in creel surveys can improve decision making. 55th Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, Bend, OR.	March 2019	We tested the utility of GSI in the Buoy 10 fall-run Chinook salmon recreational fishery, located at the mouth of the Columbia River, by sampling landed fish, assigning individuals to stock using a pre-existing genetic baseline, and evaluating the ability of genetics to improve decision making through simulations. Genetic assignments generally agreed with coded wire tag (CWT) stock assignments when available, and seasonal trends in genetic assignments tracked patterns in stock-specific CWT r
Jennings, S.F., K.M. Dugger, D.G. Ainley, and G. Ballard. 2012. Effects of parental characteristics and environmental variation on juevenile growth and survival: a case study in Adelie penguin chicks. The Wildlife Society Annual Conference, Portland Oregon, October 13-18, 2012.	October 2012
Jennings, S., K. M. Dugger, G. Ballard, and D.G. Ainley. 2016. Diet, parent age and provisioning behavior affect chick growth in Adélie penguins. 9th International Penguin Conference, Cape Town, South Africa, September 5-9, 2016.	September 2016	We investigated the relationships between provisioning and chick growth of Adélie Penguins nesting at a very large, high latitude colony, where competition for food is thought to limit chick growth and colony size through density-dependent processes. Growth of male chicks was more sensitive to variation in provisioning (prey type and amount of food delivered), but only during the apparent food-limited year. Mass growth appeared to be more sensitive to variation in the quality of prey (as refle
Jennings, S. A. Varsani, K.M. Dugger, G. Ballard, and D.G. Ainley. 2014. Sex-based differences in Adélie Penguin chick growth rates on Ross Island, Antarctica. 2014 Joint Annual Meeting of American Ornithologist's Union, Cooper Ornithological Society, and Society of Canadian Ornithologists, September 22-28, 2014, Estes Park, CO.	September 2014	This research documents growth rate differences between male and female Adelie Penguin chicks, although sex ratios at hatch are ~1:1. These differences may have important implications on fledgling survival, recruitment rates, adult sex-ratios, and ultimately population dynamics in this species.
Jenkins, JMA, DB Lesmeister, ED Forsman, and KM Dugger. 2019. Long-term dynamics of dispersal distances by adult Northern Spotted Owls. 137th annual meeting of the American Ornithologists Society, June 24-28, 2019, Anchorage, AK.	June 2019	We examined breeding dispersal distances within a marked population of Northern Spotted Owls from 1990 to 2017 to determine the relative importance of social and temporal variables, including the expansion of Barred Owls, on dispersal distances. Spotted owls that were single prior to the dispersal event tended to move farther than those that were paired, and dispersal distance declined as the amount of time spent on the previous territory increased.
Jenkins, JM, DB Lesmeister, KM Dugger, and JD Wiens. 2021. Owls on the move: Changing dynamics of breeding dispersal for northern spotted owls. 2021 Raptor Research Foundation joint Conference with the Neotropical Raptor Network, October 8-14, 2021, Boise, ID, USA.	August 2021	Adult dispersal rates, rates of repeated dispersal, and dispersal distances increased dramatically over the study period. Early in the study, intrinsic factors (e.g., pair status, reproductive success) were primary drivers in spotted owl dispersal, but in later years barred owl occurrence was an increasingly strong effect. Our results illustrate the profound impacts barred owls have on spotted owls, which evolved breeding philopatry under environmental stability and low levels of interspecific
Jenkins, JM, DB Lesmeister, KM Dugger, and JD Wiens. 2021. Owls on the move: Changing dynamics of breeding dispersal for northern spotted owls. 2021 ESA Annual Meeting, August 2 – 6, Virtual.	August 2021	Adult dispersal rates, rates of repeated dispersal, and dispersal distances increased dramatically over the study period. Early in the study, intrinsic factors (e.g., pair status, reproductive success) were primary drivers in spotted owl dispersal, but in later years barred owl occurrence was an increasingly strong effect. Our results illustrate the profound impacts barred owls have on spotted owls, which evolved breeding philopatry under environmental stability and low levels of interspecific
Jenkins, J.M.A., D.B. Lesmeister, E.D. Forsman, K.M. Dugger, & J.D. Wiens. 2019. Shifting trends in breeding dispersal for northern spotted owls. 26th Annual Meeting of The Wildlife Society, Sept. 29-Oct 3, 2019, Reno, NV.	September 2019	We examined annual detections of 4118 marked non-juvenile northern spotted owls (Strix occidentalis caurina) on 1300 historic territories during 27 breeding seasons (1990–2017) in Oregon and Washington to assess the relative importance of sex, productivity, mate history, habitat disturbance, and barred owl (S. varia) density on the frequency and distance of breeding dispersal events. Both adult dispersal rates and dispersal distances increased over the study period, and the proportion of adults
Isreal, J., M. Beakes, E. Buttermore, J. Gosselin, J. Peterson. 2024. Participatory science strategies for evaluating species, water, and power tradeoffs. 9th World Fisheries Congress, Seattle WA, March 2024.	March 2024	This presentation will highlight science partnerships including the long-term operations of the CVP ESA consultation, the Sacramento River Science Partnership and Collaborative Science and Adaptive Management Program.
Isaacs, F.B., and R.G. Anthony. February 2001. Bald eagles in Oregon: I thought they had already been taken off the endangered species list? Joint annual meeting of Oregon chapter of The Wildlife Society and American Fisheries Society.	February 2001
Isaacs, F.B. and R.G. Anthony. Status of breeding populations of bald eagles in Oregon. Annual meeting of the Oregon Chapter of The Wildlife Society, Corvallis OR.	February 2005
Isaacs, F.B. and R.G. Anthony. September 2001. Bald Eagles in Oregon: status and characteristics of the nesting population, 1971-2000. 8th Annual Conference of The Wildlife Society.	September 2001
Isaacs, F.B. and R.G. Anthony. Results of Bald Eagle (Haliaeetus leucocephalus) and Peregrine Falcon (Falco peregrinus) Nest Surveys in Oregon through 2007. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 13 February.	February 2009
Irwin ER, MC Freeman, JT Peterson, MC Lloyd, K Ouellette, KDM Kennedy. 2018. Long-Term Adaptive Management of Flows Below a Hydropeaking Dam. Southern Division American Fisheries Society, San Juan, Puerto Rico (Invited)	March 2018	This long-term study includes multiple stakeholder with different objectives regarding management of flows from a hydropeaking dam. Findings regarding the attainment of their objectives will be discussed.
Irwin ER, MC Freeman, JT Peterson, MC Lloyd, K Ouellette, KDM Kennedy. Ecological Responses Associated with Long-Term Adaptive Management of Flows Below a Hydropeaking Dam	August 2018	This long-term study includes multiple stakeholder with different objectives regarding management of flows from a hydropeaking dam. Findings regarding the attainment of their objectives and key uncertainties will be discussed.
Hughes, R.M., H.W. Li, S.V. Gregory, and R. Wildman. January 2001. Changes in fish assemblage structure in the mainstream Willamette River, Oregon. American Fisheries Society Meetings.	January 2001
Hovey, A.K., and D.D. Roby. Growth patterns of Pigeon Guillemot chicks in captive feeding trials. Pacific Seabird Group Annual Meeting, 23 February, Santa Barbara, CA.	February 2002
Hovey, A.K., and D.D. Roby. February 2001. Effects of diet and crude oil ingestion on captive pre-fledging Pigeon Guillemots. Pacific Seabird Group Annual Meeting.	February 2001
Hovey, A.K., G.J. Divoky, and D.D. Roby. February 2000. Research on captive pigeon guillemots at the Alaska SeaLife Center. Pacific Seabird Group annual meeting.	February 2000
Hostetter, N., D.D. Roby, and A. Evans. 2007. Is Avian Predation on Snake River Salmonid Smolts Additive or Compensatory Mortality? Fifth Annual Symposium on Research Advances in Fisheries, Wildlife and Ecology, Corvallis OR.	November 2007
Hostetter, N., D.D. Roby, A. Evans, K. Collis, and M. Hawbecker. 2008. Is Avian Predation on Snake River Salmonid Smolts Additive or Compensatory Mortality? 35th Annual meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Hostetter, N., D.D. Roby, A. Evans, K. Collis, B. Cramer, and M. Hawbecker. Susceptibility of juvenile steelhead to avian predation: Are birds only taking the sick and injured? Annual Meeting of the American Fisheries Society, Pittsburgh, PA.	September 2010
Hostetter*, N., D.D. Roby, A. Evans, K. Collis, and M. Hawbecker. 2009. Relative vulnerability of threatened Snake River steelhead smolts to fish-eating birds on the Columbia River. 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 25 February.	February 2009	na
Hostetter*, N., D.D. Roby, A. Evans, K. Collis, and M. Hawbecker. 2008. Relative vulnerability of threatened Snake River steelhead smolts to fish-eating birds on the Columbia River. 6th Annual Symposium on Research Advances in Fisheries, Wildlife, and Ecology, Corvallis OR, 11 November.	November 2008	na
Hostetter*, N., A. Evans, D.D. Roby, K. Collis, M. Hawbecker, and B. Sandford. 2009. Relative vulnerability of threatened Snake River steelhead smolts to fish-eating birds nesting on the Columbia River. Annual Meeting of the Western Division of the American Fisheries Society, Albuquerque NM, 4 May. [	May 2009	NA
Horton, C.A., R.M. Suryan, and K.M. Dugger. 2015. Top-down influence of Bald Eagles on the Common Murre breeding population in Oregon. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, CA, 18-21 February, 2015.	February 2015	This research provides evidence for top-down regulation of Common Murre in Oregon, mediated by the Bald Eagle, a native, avian predator that has been recently delisted under the ESA.
Horton, C., L. Adrean, K. Nelson, D.D. Roby, M. Betts, and J. Rivers. 2018. Anomalous ocean conditions coincide with a lack of nesting activity in Marbled Murrelets in Oregon. 45th Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 21-24 February.	February 2018	This presentation documents the lingering effects of the marine heat wave that struck the northeastern Pacific during 2014-2016, and how it was associated with a widespread breeding failure for Marbled Murrelets and other seabirds that depend on forage fish during the breeding season.
Homer, M.D., C.A. Jennings, and J.T. Peterson. 2013. Comparison of the precision of ages from three techniques and back-calculated lengths for introduced blue catfish (Ictalurus furcatus). Texas Chapter - American Fisheries Society, Jan. 17-19, 2013. Montgomery, Texas.	January 2013	Lethal and non-lethal methods for age determination were compared for precision of ages of blue catfish. The lethal method (otolith-based) produced the most precise estimates whereas the non-lethal methods (spine-based) produced the less precise estimates.
Homer Jr, M.D., C.A. Jennings, and J.T. Peterson. 2013. Comparison of the precision of ages from three techniques and back-calculated lengths for introduced blue catfish. Spring Meeting of the Southern Division - American Fisheries Society. Feb.7-10, 2013. Nashville, TN.	February 2013	Lethal and non-lethal methods for age determination were compared for precision of ages of blue catfish. The lethal method (otolith-based) produced the most precise estimates whereas the non-lethal methods (spine-based) produced the less precise estimates.
Hinojoza-Rood, Valerie D., Don Whittaker, Katie M. Dugger, and Cody Schroeder. 2024. Mapping pronghorn migrations and seasonal ranges in the Northern Basin and Range ecoregion. Western Association of Fish & Wildlife Agencies, 30th Biennial Pronghorn Workshop. June 24-27, 2024, Redmond, OR.	June 2024	We identified migration corridors, stopovers, and seasonal ranges using GPS telemetry data from adult female pronghorn in Oregon between 2018 and 2023. Despite overlap between herd-level summer and winter ranges, 94% of pronghorn displayed seasonal land use changes. Pronghorn preferred low sagebrush habitat year-round which formed a core area of high use seasonal ranges, emphasizing the importance of preserving this habitat.
Herron, C.L., M.M. Scanlan, O.M. Hakanson, C.B. Schreck, and J.T. Peterson. 2025. Steelhead Trout Stress Response When Reared With and Without In-Tank Structure at High and Low Density. American Fisheries Society Oregon Chapter 61st Annual Meeting, Feb 25-28, Bend Oregon.	February 2025	For this presentation, we will show the stress response of juvenile Steelhead Trout (<i>O. mykiss</i>) from two different brood years (BY). We found that rearing Steelhead trout with in-tank structure resulted in a mitigation of the stress response, similar to what was found in juvenile Chinook Salmon.
Herron, C.L., C.E. Couch, M.M. Scanlan, O. Hakanson, , R. Chitwood, J.M. Cornelius, S.M. White, J.T. Peterson*, and C.B. Schreck. 2024. Intermittent Fasting in Hatchery Reared Juvenile Chinook Salmon. Northwest Fish Culture Concepts 73rd Annual Meeting	December 2024	In this experiment, we fed parr-stage Chinook Salmon using a cyclical intermittent fasting method and measured impacts on growth and health. Fish were fasted for 72 hrs before being fed for 96 hrs and were exposed to this fasting protocol cyclically for 10 weeks. Controls were fed every day. After 10 weeks of cyclic fasting, all fish were fed daily for three weeks. Previously fasted fish and a subset of controls were then exposed to a weeklong period of fasting.
Herron, C.L., M.M. Scanlan, O. Hakanson, C.E. Couch, R. Chitwood, J.T. Peterson*, C.B. Schreck. 2024. Beginning to look at cyclical intermittent fasting to prepare juvenile Chinook salmon for release into streams. Annual meeting of the Oregon Chapter of the American Fisheries Society. Feb 26- Mar 1, Bend OR	February 2024	Upon release, hatchery-reared juvenile Chinook salmon (<i>Oncorhynchus tshawytscha</i>) potentially undergo periods of anorexia of varying durations, presumably due to release associated stress. We initiated investigations of the use of intermittent fasting as a means to prepare fish for an anorexic state post-release.
Herron, C.L, O. M. Hakanson, M. M. Scanlan, C.E. Couch, C. B. Schreck, and J. T. Peterson. 2023 The Wild Fishes Surrogate Project: Where We Have Been, Are, And Will Be. Willamette Fisheries Science Review Corvallis OR April 5-6.	April 2023	The Wild Fishes Surrogate Project is charged with the task of rearing juvenile Chinook salmon and steelhead trout for fish passage research in the Willamette River Basin. To date the Surrogate Project has provided roughly 400,000 juvenile Spring Chinook salmon and 13,000 juvenile steelhead trout used in various studies.
Herron, C., M. Kent, C. Shreck. (2017). Increasing awareness of the battle between parasitic copepods and juvenile Chinook Salmon. Oregon Chapter for American Fisheries Society, Bend, OR. Feb 28-March 3.	February 2017	The parasitic copepod, Salmincola californiensis, specifically parasitizes salmonids and is endemic to the Willamette River Basin but little information is known about the parasite. While juvenile Chinook Salmon spend time in reservoirs, they become heavily infected by these parasites. Recent research has shown that infection by these parasites has the potential to be detrimental to the overall survivability of juvenile Chinook Salmon as they move to the ocean. Swimming endurance is hindered, t
Herron, C., M. Colvin, M. Kent, C. Caudill, and C. Schreck. 2014. Nanophyetus Salminocola Burdens in Chinook Salmon (Onchorhynchus tshawystscha) Prior to Spawning in the Willamette Basin. 19th Biennial Ecological and Evolutionary Ethology of Fishes Meeting. Corvallis, Oregon.	June 2014	This abstract was approved for a meeting in February. The exact same abstract was used.
Herron, C., M. Colvin, M. Kent, C. Caudill, C. Schreck. Nanophyetus slaminocola burdens in Chinook salmon (Onchorhynchus tshawystscha) prespawning in the Willamette Basin. Oregon Chapter American Fisheries Society Annual Meeting, Feb 25-28, 2014. Eugene, Oregon.	February 2014	This observation leads us to hypothesize that high parasite infections are associated with prespawning mortality in Chinook. If it is found that a high rate of prespawning mortality in Chinook occurs with high numbers of N. salminocola, then future management plans for UWR spring Chinook may benefit by considering actions that limit pathogen exposure.
Heppell, S., G. Giannico, H.W. Li, J. Feldhaus, F. Madrinan, I. Tattam and S. White. 2005. Tier III monitoring as a planning tool for restoration: a riverscape perspective. Annual meeting of the American Fisheries Society, Juneau AK.	September 2005
Hatch, N.R., M.L. Kissling, D.D. Roby, and S.M. Gende. Seasonal differences in the diet of Kittlitz’s Murrelets, a seabird of conservation concern, as inferred from stable isotope analysis. 1st World Seabird Conference, Victoria, B.C., Canada.	September 2010
Hatch, N.R., D. Roby and M. Kissling. Temporal variability in the diet of Kittlitz’s Murrelets as inferred by stable isotope analysis. 7th Annual Symposium on Research Advances in Fisheries, Wildlife and Ecology, Corvallis OR.	February 2010
Harding, A.M.A., R. Parades, D.D. Roby, D.B. Irons, R.M. Suryan, and R.A. Orben. Variations in foraging behavior of thick-billed murres breeding at three colonies in the Bering Sea. 2010 Alaska Marine Science Symposium, Anchorage AK. POSTER	January 2010
Harding, A., R. Paredes, D. Roby, D. Irons, R. Suryan, R. Orben, H. Renner, and S. Kitaysky. Flexibility in foraging behavior of Thick-billed Murres breeding at three colonies in the Bering Sea. 1st World Seabird Conference, Victoria, B.C., Canada. POSTER	September 2010
Hall, J.D., J.T. Peterson, and K.M. Dugger. 2015. Estimating trout mortality caused by feeding of the chestnut lamprey in the Manistee River, Michigan. 145th Annual Meeting of the American Fisheries Society, August 16-20, Portland, OR	August 2015	Historic mark-recapture data will allow estimation of survival rates and population size of chestnut lamprey over a 6 month period. In conjunction with measured growth rates, we will estimate the potential impacts of lamprey on trout in this system 50+ years ago.
Hakanson, O., K. Cogliati, D. Noakes, and C. Schreck. (2017). Total body lipid in juvenile wild, hatchery, and wild surrogate Chinook salmon. Oregon Chapter for American Fisheries Society, Bend, OR. Feb 28-March 3.	February 2017	By targeting the lipid content of juvenile wild fish in the Wild Fish Surrogate Project, we are able to produce fish that are more phenotypically accurate and likely congruent with wild fish behaviors, including migration.
Hakanson, O., M.M. Scanlan, C.L. Herron, C.E. Couch, C.B. Schreck, and J.T. Peterson. 2024. Wild Fish Surrogate Project: Ongoing development of a more wild-like fish intended for use in dam passage studies within the Willamette Basin. Northwest Fish Culture Concepts 73rd Annual Meeting	December 2024	For over a decade, the Wild Fish Surrogate Project at Oregon State University has provided researchers with juvenile Chinook Salmon (<i>Oncorhynchus tshawytscha</i>) and steelhead trout (<i>Oncorhynchus mykiss</i>) for downstream migration studies to evaluate passage efficiency and survival through the Upper Willamette River reservoirs and high head dams.
Hackmann, C.,C.B. Schreck, and S. Heppell. February 19, 2004. The diet of juvenile fall chinook using tidal marsh habitat in the Nehalem Bay. Presentation at the Annual Meeting of the Oregon Chapter of the American Fishery Society.	February 2004
Groot, K.A., K.M. Dugger, and D.H. Jackson. 2014. THE EFFECTS OF MIGRATION AND ENVIRONMENTAL VARIATION ON SURVIVAL RATES AND CAUSE-SPECIFIC MORTALITY FOR COLUMBIAN BLACK-TAILED DEER IN OREGON. 21st Annual Conference of The Wildlife Society, October 25-30, 2014, Pittsburgh, PA.	October 2014	Results of this retrospective analysis will provide estimates of survival and cause-specific mortality rates of Black-tailed Deer in relation to environmental variation and migration behavior from the 1990's in southwestern Oregon. A comparison of these data with estimates from research currently underway in the same region, will help resource managers understand the affects of changes in land-use and climate on this declining species.
Groot, K., D. Budeau, and K.M. Dugger. 2014. SURVIVAL RATES OF TRANSLOCATED MOUNTAIN QUAIL: REINTRODUCTION EFFORTS IN THE TROUT CREEK MOUNTAINS. Oregon TWS Annual Meeting, February 5-7, 2014, Bend OR.	February 2014	This study investigates the relative, short-term success of reintroduction efforts on Mountain Quail, a species that has declined precipitously across its range in the western U.S. Bi-monthly survival rates are estimated during the breeding season from 2008-2010, with insight into the critical periods post-release on survival.
Greene, E. and R.G. Anthony. March 2001. Abundance and habitat associations of Washington ground squirrels in north-central Oregon. Symposium on Conservation Biology of Ground Squirrels and the Shrubsteppe Ecosystem. Idaho Academy of Science meeting.	March 2001
Grabowski TB & JT Peterson. Using citizen science to model changes in occupancy and abundance of Hawaiian reef fishes. 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	Citizen science offers a largely untapped data source for reef fish management and we demonstrate how visual fish count survey data collected by citizen scientists can be combined with existing habitat and environmental datasets to estimate changes patterns of occupancy and abundance of reef fishes.
Grabowski TB & JT Peterson. Using citizen science to model changes in occupancy and abundance of Hawaiian reef fishes. 14th Annual Tropical Conservation Biology and Environmental Science Symposium. 11-12 April 2024. Hilo, Hawai'i.	April 2024	Citizen science offers a largely untapped data source for reef fish management and we demonstrate how visual fish count survey data collected by citizen scientists can be combined with existing habitat and environmental datasets to estimate changes patterns of occupancy and abundance of reef fishes.
Glenn, E.M., R.G. Anthony, E.D. Forsman, and G.S. Olson. Effects of Climate on Demographic Performance of Northern Spotted Owls in the Pacific Northwest, Part II. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 12 February.	February 2009
Glenn, E.M., R.G. Anthony, E.D. Forsman, and G.S. Olson. Effects of Climate on Demographic Performance of Northern Spotted Owls in the Pacific Northwest, Part I. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 12 February.	February 2009
Glenn, E.M., M.C. Hansen, and R.G. Anthony. Spotted owl home range and habitat use in young forests of western Oregon. Oregon Chapter, The Wildlife Society, 15 February, Gleneden Beach, OR.	February 2002
Glenn, E., R.G. Anthony, and E.D. Forsman. Effects of climate on annual survival of northern spotted owls in the Pacific Northwest. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Glenn, E. M., R. G. Anthony, E. D. Forsman, and G. S. Olson. Local weather, regional climate, and population dynamics of northern spotted owls in the Pacific Northwest. Annual Conference of The Wildlife Society, Monterey, CA, 22 September.	September 2009
Gladics, A.J., P.J. Hodum, and D.D. Roby. Nest burrow damage associated with cattle grazing in a pink-footed shearwater (Puffinus creatopus) colony on Robinson Crusoe Island, Juan Fernandez Archipelago, Chile. 7th Annual Symposium on Research Advances in Fishers, Wildlife and Ecology, Corvallis OR.	February 2010
Gilligan-Lunda, E., J.T. Peterson, and A. Duarte. 2025. Decision analysis to inform management decision-making for long-lived, difficult to monitor species with high uncertainty. American Fisheries Society Oregon Chapter 61st Annual Meeting, Feb 25-28, Bend Oregon.	February 2025	Uncertainty is inevitable when working with long-lived, difficult to monitor species and it is critical that conservation strategies are developed incorporating and quantifying that uncertainty. Stakeholder engagement from a variety of different backgrounds helps to solve complex problems through the development of competing hypotheses of how the system works.
Gilligan-Lunda, E., J.T. Peterson, and A. Duarte. 2022. Habitat use and other critical resource needs for anadromous sturgeons in North America North American Sturgeon and Paddlefish Society Annual Meeting, October 23-27, Folsom, CA.	October 2022	The goal of this research is to synthesize information across anadromous sturgeon throughout North America to identify species-specific knowledge gaps and do a quantitative comparison of species-habitat relationships across species and geographic regions.
Gilligan-Lunda, E., A. Duarte, and J.T. Peterson.. 2024. Decision analysis for long-lived, difficult to monitor species with high uncertainty 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	In this presentation, we will describe the new and improved decision models for sturgeon restoration in California’s Central Valley, United States of America. We showcase the collaborative efforts of multiple agencies and organizations across the Central Valley and their efforts to identify objectives and help prioritize restoration management alternatives.
Gilligan-Lunda, E. J. Peterson, and A. Duarte. 2022. Habitat use and other critical resource needs for anadromous sturgeons in North America: a meta-analysis. 152nd American Fisheries Society Annual Meeting, August 21-25, Spokane WA.	August 2022	Sturgeon species [PJ1] are considered among the most endangered fishes in the world and populations are facing declines throughout their native range. Resource limitations are common for endangered species research because there is a lack of funding available for replication studies, limited access and availability to the species of interest, and small population sizes. Because of this, sturgeons are generally understudied and lack the species-specific information needed to inform management de
Giannico, G.R., S.A. Heppell, H.W. Li, J.W. Feldhaus, L.F. Madrinan, and I.A. Tattam. 2005. Using tier III monitoring at various scales as a planning tool for stream restoration. Annual meeting of the Ecological Society of America, Montreal, Quebec, Canada.	September 2005
Giannico, G., S. Heppell, H.W. Li, J.W. Feldhaus, L.F. Madrinan, and I.A. Tattam. 2005. A riverscape perspective: Tier III monitoring as a planning tool for restoration. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
Giannico, G., G. Boxall, and H. Li. 2005. A multi-scale matrix approach to determine habitat quality for two Lahontan cutthroat trout bearing streams. Annual meeting of the American Fisheries Society, Juneau AK.	September 2005
Gervis, J.A., D.K. Rosenberg, and R.G. Anthony. March 2000. DDE in burrowing owls in California: Following the ghost of contaminants past in a current population. San Joaquin Natural Communities Conference.	March 2000
Gervais, J.A., J.R. Hunter and R.G. Anthony. Modeling the population-level effects of multiple stressors: p,p'DDE and food shortage in the burrowing owl. 25th annual meeting of the Society of Environmental Toxicology and Chemistry, Portland OR.	November 2004
Gervais, J.A. and R.G. Anthony. September 2001. Spatial and temporal patterns of p,p'DDE contaminants in a resident California population of burrowing owls. 8th Annual Conference of The Wildlife Society.	September 2001
Gee, S., A. Duarte, and J. Peterson. 2022. A Framework for Assessing the Efficacy of Integrating Found and Probabilistically Sampled Data. 29th Annual Conference of the Wildlife Society, Nov. 6-10, Spokane WA.	November 2022	Properly integrating found data can enhance sample sizes or allow for the estimation of parameters on the target species that are measured only in the found data. For this study, we explore a framework to evaluate the efficacy of integrating found data with probabilistically sampled data as a way to potentially increase the spatial scale at which ecological inferences can be made for a species.
Garcia, T.S., K.M. Dugger, J.Johnson, M. Rochelle, and A.J. Kroll. 2012. A novel approach for estimating occupancy of the Oregon slender salamander (Batrachoseps wrighti). The Wildlife Society Annual Conference, Portland Oregon, October 13-18, 2012.	October 2012
Gamperl, A.K., H.A. Faust, K.J. Rodnick, and H.W. Li. October 1999. Swimming and metabolic performace of high desert redband trout. NW Conference on Wildlife Conservation Research.	October 1999
Gall, A.E., D.D. Roby, and D.B. Irons. Guess your weight: What do body condition indices represent? Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 22 January 2004.	January 2004
Gall, A.E., D.D. Roby, and D.B. Irons. 2003. What lies beneath: How well do surface counts of auklets track numbers of breeding pairs? Annual meeting of the Pacific Seabird Group.	January 2003
Gall, A.E., D.D. Roby, I.C Rose, and D.B. Irons. Inerannual variation in diet and productivity of plankton-feeding auklets: clues to the effects of climate change? Joint annual meeting of the Pacific Seabird Group and The Waterbird Society, Portland OR.	January 2005
Gall, A., D.D. Roby, and D.B. Irons. Is there evidence of programmed mass loss in response to increased flight demands in breeding auklets on Saint Lawrence Island, Alaska? Pacific Seabird Group Annual Meeting, 23 February, Santa Barbara, CA.	February 2002
Fritts, A., J. Peterson, P. Hazelton, and R. Bringolf. 2014. Laboratory evaluation of physiological biomarkers of stress in freshwater mussels. Mississippi River Research Consortium. 23-25 April 2014. La Crosse, WI. Platform Presentation.	April 2014	We evaluated the effects of stress biomarkers in mussels. This work led, in part, to new approaches to evaluating the health of mussel populations.
Freeman, M.C., J.T. Peterson, C.M. Elliott, C.P. Shea, and M.M. Hagler. 2011. Using species traits and geomorphic characteristics to condition coarse-resolution assessment of climate change effects on aquatic species. 96th Annual Meeting of the Ecological Society of America August 7-12, Austin TX (INVITED)	August 2011
Franklin, AB, KM Dugger, DB Lesmeister, RG Davis, JD Wiens, GC White, JD Nichols, JE Hines, CB Yackulic, CJ Schwarz, LL Bailey, and KP Burnham. 2021. Range-wide Declines of Northern Spotted Owl Populations: On the Road to Extinction? The Wildlife Society's 28th Annual Meeting, November 1-5, 2021, Virtual.	November 2021	We conducted a prospective meta-analysis to assess population trends and factors affecting those trends in northern spotted owls using 26 years of survey and capture-recapture data from 11 study areas across the owls' geographic range. We found that northern spotted owl populations experienced declines of 6–9% annually on 6 study areas and 2-5% annually on 5 other study areas. Annual declines translated to <u><</u>35% of the populations remaining on 7 study areas since 1995 and barred owl prese
Franklin, AB, KM Dugger, DB Lesmeister, RG Davis, JD Wiens, GC White, JD Nichols, JE Hines, CB Yackulic, CJ Schwarz, LL Bailey, KP Burnham and 26 others. 2021. Barred Owl Contributions to Range-wide Declines of Northern Spotted Owl Populations: A Meta-analysis. Raptor Research Foundation joint Conference with the Neotropical Raptor Network, October 8-14, 2021, Boise, ID, USA	October 2021	We conducted a prospective meta-analysis to assess population trends and factors affecting those trends in northern spotted owls using 26 years of survey and capture-recapture data from 11 study areas across the owls' geographic range. We found that northern spotted owl populations experienced declines of 6–9% annually on 6 study areas and 2-5% annually on 5 other study areas. Annual declines translated to <u><</u>35% of the populations remaining on 7 study areas since 1995 and barred owl prese
Franklin, A.B., K.P. Burnham, G.C. White, R.G. Anthony and others. September 2000. Trends in northern spotted owl populations: A meta-analytical approach. The Wildlife Society 7th Annual Conference.	September 2000
Fox, T.T., B.D. Dugger, J.M. Coluccy, K.M. Dugger, M.J. Petrie, and D.Kraege. 2013. Breeding Ecology of Mallards in Eastern Washington. 6th North American Duck Symposium & Workshop. January 27-31, 2013, Memphis, TN.	January 2013	We estimated vital rates for breeding mallards in eastern Washington and used those vital rates to develop a demographic model. Breeding propensity had a greater influence on λ than any previous study and the likelihood of breeding was related to body condition. T
Foster, L., C. Hagen, D. Budeau, and K.M. Dugger. 2016. Greater sage-grouse adult and nest survival following large-scale wildfire. 30th Sage and Columbian Sharp-tailed Grouse Workshop. Lander, WY, June 13-16, 2016.	June 2016	We estimated monthly adult survival, and daily nest survival of sage-grouse affected by the Holloway fire, which burned 187,000 ha of sagebrush habitat in southeastern Oregon during August, 2012. Female survival was greatly reduced the first winter post-fire until the end of the first post-fire growing season. Nest survival rates were 0.193, and 0.301, during 2013 and 2014 respectively.
Foster, L., C. Hagen, D. Budeau, and K.M. Dugger. 2015. Greater sage-grouse survival, reproduction, and habitat use following large-scale wildlife. International Grouse Symposium 2015, Reykjavik, Iceland, Sept 4-7, 2015.	September 2015	We investigated survival, reproductive success, and habitat use of female sage-grouse the first two years after a large wildfire. Preliminary evidence suggests that while survival and reproductive success was negatively affected immediately following the fire, sage-grouse vital rates are improving as the fire-affected area regenerates.
Foster, L., C. Hagen, D. Budeau, and K.M. Dugger. 2014. GREATER SAGE GROUSE RESPONSE TO LARGE SCALE WILDFIRE. Oregon TWS Annual Meeting, February 5-7, 2014, Bend OR.	February 2014	This study investigates the effect of a large wildfire in eastern Oregon during 2012 on survival, reproductive success and habitat use of female greater sage grouse. Very little information currently exists on the effect of wildfire-altered landscapes on the demographics of this species.
Foster, L., C. Hagen, D. Budeau, K.M. Dugger, and C. Anthony. 2016. Seasonal movements, site fidelity, and resource selection of greater sage-grouse following large-scale wildfire. 30th Sage and Columbian Sharp-tailed Grouse Workshop. Lander, WY, June 13-16, 2016.	June 2016	We investigated seasonal movement patterns, site fidelity, and resource selection of sage-grouse affected by the Holloway fire, which burned 187,000 ha of sagebrush habitat in southeastern Oregon during August, 2012. Sage-grouse exhibited fidelity to all seasonal ranges, and did not emigrate significant distances from the fire. Sage-grouse resource selection patterns within fire affected areas were similar to patterns exhibited by populations in undisturbed habitat.
Foster, L., C. A. Hagen, D. Budeau, K. M. Dugger. 2015. SURVIVAL, REPRODUCTION, AND HABITAT USE OF FEMALE GREATER SAGE-GROUSE IN A WILDFIRE AFFECTED LANDSCAPE IN SOUTHEASTERN OREGON. The Wildlife Society, Oregon Chapter Annual Meeting, April 29 - May 1, 2015 ,Eugene, OR.	April 2015	We investigated survival, reproductive success, and habitat use of female sage-grouse the first two years after a large wildfire. Preliminary evidence suggests that while survival and reproductive success was negatively affected immediately following the fire, sage-grouse vital rates are improving as the fire-affected area regenerates.
Foster, L., C. A. Hagen, D. Budeau, K. M. Dugger. 2015. SURVIVAL, REPRODUCTION, AND HABITAT USE OF FEMALE GREATER SAGE-GROUSE IN A WILDFIRE AFFECTED LANDSCAPE IN SOUTHEASTERN OREGON. The Wildlife Society, Annual Meeting, October 17-21, 2015, Winnepeg, CAN.	October 2015	We investigated survival, reproductive success, and habitat use of female sage-grouse the first two years after a large wildfire. Preliminary evidence suggests that while survival and reproductive success was negatively affected immediately following the fire, sage-grouse vital rates are improving as the fire-affected area regenerates.
Foster, G., M.S. Fitzpatrick, M.A.H. Webb, G. Feist, C.B. Schreck, D.T. Gundersen and J. Paar. 2003. How contaminant data may be used in management fisheries. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Foster, E.P., M.S. Fitzpatrick, D.T. Gundersen, G.W. Feist, M.A.H. Webb, A.G. Maule, C.B. Schreck, J. Paar, M. Bernal, and J. Vavra. Oregon Chapter of the American Fisheries Society, Sunriver OR.	February 2002
Forsman, E.D., and R.G. Anthony. Natal and post-natal dispersal of northern spotted owls. Annual Meeting of the Oregon Chapter, The Wildlife Society, Bend OR, 12 February 2004.	February 2004
Forsman, E.D., R.G. Anthony, K.M. Dugger, and E.M. Glenn. 2012. Population demography of the northern spotted owl. The Wildlife Society Annual Conference, Portland, Oregon, October 13-18, 2012	October 2012
Forsman, E.D., R.G. Anthony, E.C. Meslow, and C.J. Zabel. Variation in diets of spotted owls in Oregon. Annual Meeting of the Oregon Chapter, The Wildlife Society, Bend OR, 13 February 2004.	February 2004
Fischer, K.N., R.M. Suryan, G.R. Balogh, and D.D. Roby. Marine habitat use of Black-footed and Laysan albatrosses off Alaska: inter-specific variation durthing the non-breeding season. 34th Annual meeting of the Pacific Seabird Group, Asilomar CA.	March 2007
Fischer, K.N., R.M. Suryan, D.D. Roby and G.R. Balogh. 2008. Post-breeding Season Distribution of Black-footed and Laysan Albatrosses: Inter-specific Differences in Spatial Overlap with North Pacific Fisheries. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Fischer, K.N., D.D. Roby, D.E. Lyons, C.D. Anderson, and K. Collis. Nesting ecology of double-crested cormorants on East Sand Island in the Columbia River estuary: What will limit colony expansion? Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 23 January 2004.	January 2004
Fischer, K.N., D.D. Roby, D.E. Lyons, C.D. Anderson, and K. Collis. Nesting ecology of double-crested cormorants on East Sand Island in the Columbia River estuary: What will limit colony expansion? Annual Meeting of the Oregon Chapter, The Wildlife Society, Bend OR, 12 February 2004.	February 2004
Fischer*, K.N., R.M. Suryan, D.D. Roby, and G.R. Balogh. 2009. Foraging habitat of Black-footed and Laysan albatrosses off Alaska during the post-breeding season. 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 24 February.	February 2009
Fischer*, K.N., D.D. Roby, J.Y. Adkins, L.H. Reinalda, D.E. Lyons, D.T. King, and R.S. Larsen. 2009. Evaluation of satellite tagging and capture techniques for nesting Double-crested Cormorants. 36th Annual Meeting of the Pacific Seabird Group, Hakodate, Japan, 24 February.	February 2009
Fischer*, K.N., D.D. Roby, J.Y. Adkins, L.H. Reinalda, D.E. Lyons, D.T. King, and R.S. Larsen. 2008. Satellite tagging Double-crested Cormorants at East Sand Island, Oregon: An evaluation of tagging techniques and development of a novel low-disturbance technique for capturing individual nesters. Annual Meeting of The Waterbird Society, South Padre Island TX, 6 November.	November 2008
Ferguson, J.A., J. Romer, C.B. Schreck and M.L. Kent. Impacts on Coho salmon (Oncorhynchus kisutch) smolt fitness by multiple parasite species infection. 8th International Workshop on Smoltification, September 20-24, Corvallis OR.	September 2011
Ferguson, J.A., J. Romer, C.B. Schreck and M.L. Kent. Impacts on Coho Salmon (Oncorhynchus kisutch) Smolt Fitness by multiple Parasite Species Infection. 8th International Workshop on Smoltification, Corvallis OR.	September 2010
Ferguson, J.A., C.B. Schreck, K.C. Jacobson, P. Rossignol, S. St-Hilaire, K.J. Rodnick, J. Romer and M. Kent. Impacts of multispecies parasitism o juvenile coho salmon (Oncorhynchus kisutch) in Oregon : a PD thesis summary. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA	September 2011
Feldhaus, J.W., M.G. Mesa, S.A. Heppell, L. J. Madsen and H.W. Li. 2005. Physiological tools to assess thermal stream habitat quality for redband trout (Oncorhynchus mykiss) in the South Fork John Day River. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
Feist, G.W., M.S. Fitzpatrick, E.P. Foster, D.T. Gundersen, M.A.H. Webb, A.G. Maule, W.L. Gale, and C.B. Schreck. January 2001. Endocrine disrupting chemicals and reproduction in white sturgeon. 4th International Symposium on Sturgeon.	January 2001
Feist, G.W., M.S. Fitzpatrick, C.B. Schreck, and E.P. Foster. January 2000. Reproductive response of chinook salmon to xenoestrogens. Western Regional Conference on Comparative Endocrinology.	January 2000
Feist, G.W., M.S. Fitzpatrick, C.B. Schreck, J.P. Van Eenennaam, and S.I. Doroshov. January 2001. Early identification of sex in white sturgeon. Western Regional Conference on Comparative Endocrinology.	January 2001
Fausch, K.D., C.E. Torgersen, C.V. Baxter, and H.W. Li. June 2001. Landscapes to riverscapes: Bridging the gap between research and conservation of stream fishes. North American Benthological Society Meetings.	June 2001
Farrar, R.S. G.W. Feist, K.J. Rodnick, and C.B. Schreck. The contribution of stored calcium, endothelial cells, and extracellular glucose to steroid-induced inotropism in rainbow trout ventricle strips. Presentation at the 5th International Symposium on Fish Endocrinology on the Campus of the University Jaume I of Castellon in Spain.	September 2004
Fan, Z.Y., S.H. Chen, D.D. Roby, S. Chan, D.E. Lyons, S. Collar, Y.W. Lu, and Q. Huang. 2014. Conservation of the critically endangered Chinese crested tern: Restoration of a lost breeding colony on the Jiushan Islands, China. 26th International Ornithological Conference, Tokyo, Japan.	August 2014	The presentation describes the restoration of a large greater crested tern colony, which had been abandoned due to illegal egg collection, and nesting by a few pairs of Chinese crested terns, which managed to raise at least one fledgling. No more than 50 Chinese crested terns are thought to survive today.
Evans, A.F., Q. Payton, B. Cramer, P.J. Loschl, K. Collis, D.D. Roby, B. Caillouet, and K. Kelly. 2017. Avian predation rates: Impacts from managed and unmanaged colonies. Avian Predation Workshop, U.S. Army Corps of Engineers, The Dalles, Oregon. 2 March.	March 2017	This presentation describes the impacts of avian predation on survival of juvenile salmonids in the Columbia River basin based on recovery of smelt PIT tags on the breeding colonies of piscivorous waterbirds.
Evans, A.F., Q. Payton, B. Cramer, P.J. Loschl, K. Collis, D.D. Roby, B. Caillouet, and K. Kelly. 2016. Caspian tern predation rates on ESA-listed salmonids: Impacts from managed and un-managed colonies in the Columbia River basin, 2016. 2016 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	November 2016	This paper documents the effects of Caspian tern management in the Columbia River estuary and in the Columbia Plateau region on predation rates on ESA-listed salmonid smolts originating from throughout the Columbia River basin.
Evans, A.F., D.D. Roby, K. Collis, N.J. Hostetter, B. Cramer, P. Loschl, D.E. Lyons, and T. Lawes. 2013. Impact of gull predation on smolt survival in the Columbia Plateau region: Understanding what on-colony PIT tag recoveries can tell us. Anadromous Fish Evaluation Program Annual Review, Walla Walla, WA.	December 2013	This study demonstrates that despite low rates of smelt PIT tag deposition on gull colonies on the mid-Columbia River that some gull colonies are sources of significant predation rates on ESA-listed juvenile salmonids.
Evans, A.F., D.D. Roby, K. Collis, B. Cramer, N.J. Hostetter, P.J. Loschl, D.E. Lyons, T.J. Lawes, and Q. Payton. 2014. Caspian tern predation on juvenile salmonids in the Columbia River Basin: A synopsis of PIT tag recovery methods, analyses, and results from 2014. Avian Predation Workshop, Walla Walla, WA, 3 December. (Invited)	December 2014	This presentation summarizes the predation rates of Caspian terns on salmonid smolts from various salmonid populations in the Columbia River basin during 2014 based on recoveries of smelt PIT tags on Caspian tern breeding colonies.
Evans, A., Q. Payton, A. Turecek, D.D. Roby, K. Collis, B. Cramer, and P.J. Loschl. 2015. An assessment of avian predation on juvenile salmonids: A spatially-explicit analysis of smolt losses in relation to survival standards. 145th Annual Meeting of the American Fisheries Society, Portland, OR, 18 August.	August 2015	This presentation summarized results from a two-year study using double-tagged salmonid smolts (acoustic tag and PIT tag) to assess avian predation rates and the locations where avian predation on ESA-listed salmonids occurred.
Evans, A., Q. Payton, A. Turecek, B. Cramer, K. Collis, D. Roby, P.J. Loschl, L. Sullivan, J. Skalski, R. Townsend, M. Weiland, and C. Dotson. 2015. Avian predation on juvenile salmonids in the Columbia River: A spatial and temporal analysis of impacts in relation to fish survival. Anadromous Fish Evaluation Program Annual Review, Walla Walla, Washington.	December 2015	This presentation describes the results of tagging studies designed to evaluate the impact of avian predation on the survival of juvenile salmonids in the lower Columbia River basin during 2012 and 2014.
Evans, A., N.J. Hostetter, D.D. Roby, K. Collis, M. Hawbecker, B. Cramer, J. Tennyson, P.J. Loschl, B. Sandford, and S. Sebring. A system-wide assessment of avian predation based on the recovery of steelhead PIT tags. Annual Review for the Anadromous Fish Evaluation program, US Army Corps of Engineers, Walla Walla WA.	December 2009
Evans, A., K. Collis, D.D. Roby, D.E. Lyons, M. Hawbecker, G. Dorsey, C. Couch, S.K. Nelson, J.Y. Adkins, and A.M. Myers. Avian predation on juvenile salmonids in the mid-Columbia River: assessing the magnitude of impacts. Annual meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	February 2005
Evans, A., D. Roby, K. Collis, B. Cramer, N. Hostetter, P. Loschl, D. Lyons, T. Lawes, and Q. Payton. 2014. Caspian tern predation on juvenile salmonids in the Columbia River basin: a synopsis of PIT tag recovery methods, analyses, and results from 2014. 2014 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	December 2014	This paper demonstrates the reduction in avian predation on ESA-listed salmonids from management to reduce the size of the Caspian tern colony on Goose Island, Potholes Reservoir, eastern Washington.
Evans*, A., N. Hostetter, D.D. Roby, K. Collis, M. Hawbecker, M. Carper, B. Cramer, P.J. Loschl, J.Y. Adkins, D.E. Lyons, B. Sandford, and S. Sebring. 2008. Steelhead vulnerability to avian predators in the Snake and Columbia rivers. 2008 AFEP Annual Review, Portland OR, 9 December.	December 2008	na
Erickson B & Jones M. S. (2024). When good advice is hard to use: the challenge of audience segmentation when communicating about coexistence with American beavers. Conservation Social Science Conference. (Online).	November 2024	We examined approaches to communicating with private landowners about beaver coexistence in Oregon, USA. Drawing on 23 semi-structured interviews, we identified 48 potential criteria for segmenting private landowners to promote beaver coexistence. We highlight the complexity behind the recommendation to tailor one's message to their audience and the challenge of choosing which audience criteria matter.
Ellings, CS, MJ Davis, I Woo, S Hodgson, G Nakai, and SEW De La Cruz. 2021. Nisqually Delta restoration research and Chinook salmon recovery planning: management implications. Nearshore Summit and Synthesis, Olympia, Washington, USA (online).	March 2021	We discuss how variation in delta carrying capacity as a result of climate change could affect management implications for a "recovered" population of Chinook salmon.
Ecological Interactions between Juvenile Hatchery and Wild Salmonids in Eagle Creek and North Fork Eagle Creek OR. American Fisheries Society Western Division Annual Meeting, Portland OR.	May 2008
Ebersole, J., C.V. Baxter, H.W. Li, W.J. Liss, and C. Frissell. January 2001. Detecting temporal dynamics and ecological effects of small mouth bass invasion in northeast Oregon streams.	January 2001
E.P. Foster, M.S. Fitzpatrick, D.T. Gundersen, G.W. Feist, M.A.H. Webb, A.G. Maule, C.B. Schreck, J.Paar, M. Bernal, and J. Vavra. 2002. Biomarkers of contaminant effects on the reproductive physiology of white sturegon from the Columbia River. PNW - SETAC, Portland OR.	March 2002
E. Foster, M. Fitzpatrick, G. Feist, M. Webb, C. Schreck, A. Maule, W. Gale, D. Buhler, D. Gundersen, J. Paar, M. Bernal and J. Vavra. Hepatic cytochrome P450 3A27 is correlated with liver, p,p, - DDE and plasma testosterone in white sturgeon. Society of Toxicology, Nashville TN.	January 2002
E. Foster, M. Fitzpatrick, G. Feist, M. Webb, C. Schreck, A. Maule, W. Gale, D. Buhler, D. Gundersen, J. Paar, M. Bernal and J. Vavra. Hepatic cytochrome P450 3A27 is correlated with liver, p,p, - DDE and plasma testosterone in white sturgeon.	January 2002
Dycus, J.C. and J.T. Peterson. 2011. Annuli verification and comparison of growth-measurement techniques for Villosa vibex and Villosa lienosa, in the lower Flint River Basin, Georgia. Annual Meeting of the North Carolina Chapter of the American Fisheries Society. February 22-23, Charlotte NC	February 2011
Dugger, KM, ED Forsman, AB Franklin, RJ Davis and 33 others. 2016. The effects of habitat, climate, and Barred Owls on long-term demography of Northern Spotted Owls. Society for Ecological Restoration Northwest regional conference, Portland, OR, April 5-7, 2016.	April 2016	Range-wide declines of Northern Spotted Owls averaged 3.8% per year, with declines in original populations of 31-77% on 11 study areas since monitoring began. Declines were primarily associated with increasing numbers of Barred Owls, habitat loss, and climate patterns.
Dugger, KM, DG Ainley, G Ballard, POB Lyver, and K Barton. 2016. Breeding propensity, age-specific survival, and age-at-1st reproduction of Adélie penguins in relation to colony size and environmental variation. 9th International Penguin Conference, Cape Town, South Africa, September 5-9, 2016.	September 2016	This analysis of a long-term data set on known-age Adelie penguins in Antarctica allows us to investigate complex components of age-related demography including survival, age-at-1st breeding and breeding propensity.
Dugger, KM, DG Ainley, G Ballard, POB Lyver, and K Barton. 2016. Age-specific survival of Adélie penguins in relation to colony size, reproductive status, and environmental variation. North American Ornithological Conference 2016, Washington D.C., August 16-20, 2016.	August 2016	This analysis of a long-term data set on known-age Adelie penguins in Antarctica allows us to investigate complex components of age-related demography including survival, age-at-1st breeding and breeding propensity.
Dugger, KM, DG Ainley, G Ballard, PO'B Lyver, and K Barton. 2012. Variation in age-at-1st reproduction & age-related survival of Adélie penguin in relation to colony size, breeding status, & environmental variation. 39th Annual Meeting of the Pacific Seabird Group, February 7-10, Oahu, HI.	February 2012
Dugger, KM, DG Ainley, G Ballard, P.O'B. Lyver, K Barton. 2020. Temporal and age-related variation in survival, recruitment rates and breeding propensity of Adélie penguins in a multi-colony meta-population. 3rd World Seabird Conference, Hobart, Tasmania, AUS, 19-23 October 2020.	October 2020	Using a long-term mark-resight data set (18 years) collected on individuals banded as chicks, and multi-state capture-recapture models, we estimated subadult survival (1<sup>st</sup> 2 years after fledging), recruitment rates, and breeding propensity for 3 colonies (that vary in size by orders of magnitude) of a 4-colony metapopulation in the Ross Sea, Antarctica.
Dugger, K.M., E.D. Forsman, D.A. Clark, R.J. Davis and 33 others. 2014. Status and trends of the Northern Spotted Owl (strix occidentalis caurina): results of a range-wide meta-analysis. 2014 Joint Annual Meeting of American Ornithologist's Union, Cooper Ornithological Society, and Society of Canadian Ornithologists, September 22-28, 2014, Estes Park, CO.	September 2014	Range-wide declines of Northern Spotted Owls averaged 3.8% per year, with declines in original populations of 31-77% on 11 study areas since monitoring began. Declines were primarily associated with increasing numbers of Barred Owls, habitat loss, and climate patterns.
Dugger, K.M., D.G. Ainley, G. Ballard, P.O’B. Lyver, and K. Barton. 2017. Breeding propensity & age-at-1st reproduction of Adélie penguins in a multi-colony meta-population. The Joint Meeting of the American Ornithological Society and the Society of Canadian Ornithologist/Société des Ornithologistes du Canada, East Lansing, MI, July 31-August 5, 2017.	July 2017	Using a long-term mark-resight data set (18 years) collected on individuals banded as chicks and multi-state capture-recapture models, we estimated age-at-1st reproduction and breeding propensity for 3 colonies of a 4-colony metapopulation in the Ross Sea, Antarctica in relation to expanding colony size (which span 3 orders of magnitude) and environmental variation.
Dugger, K.M., D.G. Ainley, G. Ballard, P. Lyver, and K. Barton. 2014. Breeding propensity and age-specific survival of Adelie penguins in relation to colony size with resulting affects on age-at-1st reproduction. 2014 Joint Annual Meeting of American Ornithologist's Union, Cooper Ornithological Society, and Society of Canadian Ornithologists, September 22-28, 2014, Estes Park, CO.	September 2014	Adelie penguin survival varies by age, and breeding state, but is lower overall at the smallest colony in this 3-colony metapopulation. The probability of transitioning from a pre-breeder to a breeder varies by age, but not colony; however coupled with survival rate variation, birds begin breeding at a younger age on average at the smallest colony, compared to the larger colonies.
Dugger, K.M. 2020. THE COMPLEXITIES OF SEABIRD DEMOGRAPHICS IN A CHANGING ENVIRONMENT – ADÉLIE PENGUINS IN THE SOUTHERN ROSS SEA, ANTARCTICA. 47th Annual Meeting of the Pacific Seabird Group, Portland, OR, February 12-15, 2020.	February 2020	Using a long-term mark-resight data set collected on birds banded as chicks at 3 colonies, I explored temporal variation on subadult survival, age-related recruitment and breeding propensity. Age-related effects can mimic or mask environmental relationships, particularly when confounded with time. Thus, a long time series that encompasses the average life-span of individuals, and models that can disentangle age from time effects, are crucial for understanding the population dynamics of species
Dugger, K.M. 2014. Importance of long term data to species conservation and management: measuring vital rates at the relevant scale. 2014 Morss Colloquium, "Conservation of polar species susceptible to impacts from climate change". Woods Hole Oceanographic Institute, Falmouth, MA.	March 2014	This presentation summarizes the importance of long-term demographic data to the conservation and management of species in the face of global climate change through estimation and modeling of animal vital rates. The important of collaborative science in order to address questions regarding the population dynamics of wildlife is also highlighted with an example from the northern spotted owl.
Dugger, K., F. Wagner, R. Anthony, and G. Olson. 2003. The identification and evaluation of northern spotted owl habitat in relation to their demographic performance in managed forests of southwestern Oregon. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Dugger, K. M., R. G. Anthony, and S. L. Andrews. Transient dynamics of invasive competition: Barred owls, spotted owls and the demons of competition present. Annual Conference of The Wildlife Society, Monterey, CA, 20 September.	September 2009
Duery, S., I. Courter, M. Morasch, B.J. Clemens, T. Workman, R. McCoun, L. Schwabe and C.B. Schreck. Pre-spawning Migration Behavior and Distribution of Pacific Lamprey in the Willamette Basin. Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February.	February 2010
Duchac, L.S., D.B. Lesmeister, and K.M. Dugger. 2019. Who was that? Using passive acoustic monitoring to detect forest owls in the Pacific Northwest. Oregon Chapter of the Wildlife Society 2019 Annual Meeting, Feb. 27 - March 1, Bend, OR.	February 2019	From March-July 2017, we recorded with ARUs each night at 30, 500-ha hexagons (150 ARU stations) with likely NSO activity in Oregon and Washington. Conditional detection probabilities (i.e., when NSO were present) in hexagons exceeded 0.95 after 5 weeks of ARU deployment. In two Oregon study areas, detection probabilities for NSO and barred owls both approached 1.0 within 2-3 weeks of ARU deployment.
Duchac, L.S., D.B. Lesmeister, and K.M. Dugger. 2019. Landscape use by forest owls two years after mixed-severity wildfire: novel findings using passive acoustic monitoring. 26th Annual Meeting of The Wildlife Society, Sept. 29 - Oct. 3, 2019, Reno, NV.	September 2019	We are passive acoustic recording technology in the area of a 2015 mixed-severity wildfire in southwest Oregon to identify patterns of vocal activity and habitat use by 5 species of forest owls. Activity patterns peaked near the full moon for Northern Pygmy-owls and around the new moon for Great Horned Owls, and a spike in activity for Great Horned, Barred and Northern Pygmy-owls was observed in late May. Probability of use was strongly positively associated with fire severity for Western Scr
Duchac, L., D.B. Lesmeister, and K.M. Dugger. 2018. Testing a passive acoustic approach to detect Northern Spotted Owls and Barred Owls . Joint annual meeting of the Oregon Chapter of The Wildlife Society, the Washington Chapter of The Wildlife Society, the Society for Northwestern Vertebrate Ecology, and the Northwestern Partners in Amphibians and Reptile Conservation. Portland, OR, Feb 13-16, 2018.	February 2018	This research provides important basic information regarding the use of passive, automated recording units to survey northern spotted owls and barred owls in the Pacific Northwest.
Duchac, L., D.B. Lesmeister, and K.M. Dugger. 2018. Can passive acoustic monitoring detect and identify vocalization patterns in two congeneric forest owls in the Pacific Northwest? 89th Annual Meeting of the Northwest Science Association, Olympia WA, March 27-30, 2018	March 2018	We investigated the use of ARUs to detect calls of northern spotted owls (NSO) and barred owls (BO) in Oregon and Washington. Preliminary results suggest that ARUs are an effective monitoring tool for determining at least presence/absence of NSO and other owl species through the breeding season. Limited results also show that NSO and BO may temporally partition calling activity, with NSO concentrating vocalizations around crepuscular periods and BO vocalizing throughout the night.
Duarte, A., and J.T. Peterson. 2018. An integrated population model to estimate survival, growth, and movement transition probabilities for juvenile salmonids. Biennial Bay-Delta Science Conference, Sacramento, CA.	September 2018	We developed a new parameterization for integrated population models that links two different, but often collected, types fish monitoring data: adult escapement estimates and juvenile screw-trap capture data.
Duarte, A., J.T. Peterson, M.A. Adams. 2017 N-mixture models in the presence of unmodeled heterogeneity in count data: when can we trust the inferences? Oregon Chapter of The Wildlife Society 2017 Annual Meeting, February 8-10, Pendleton, Oregon.	February 2017	Little work has evaluated how N-mixture models perform when basic assumptions are not met. herefore, we simulated count data with common types of heterogeneity in abundance and detection probabilities found in real-world monitoring data to evaluate the efficacy of N-mixture models when heterogeneity cannot be modeled via covariates.
Duarte, A., C.A. Pearl, M.J.Adams, and J.T. Peterson. 2016. The use of integrated population models to document amphibian reintroduction efforts within restored habitat. North American Congress for Conservation Biology. Madison, WI.	July 2016	Despite the implementation of large-scale restoration actions to aid in offsetting worldwide amphibian population declines, limited information exists concerning the aftermath of these actions because robust amphibian monitoring data are difficult to collect. We demonstrate the utility of integrated models to combine capture-recapture and egg mass monitoring data collected after reintroduction of Oregon spotted frogs (Rana pretiosa) in restored habitat.
Duarte, A., C.A. Pearl, M.J. Adams, and J.T. Peterson. 2017.“The use of integrated population models to evaluate amphibian reintroduction efforts within restored habitat” at The Wildlife Society Annual Conference, 15–19 October 2016, Raleigh, NC.	October 2017	We presented a unique integrated population model for making translocation decisions.
Duarte, A., A.D. Thomas, A. Higgs, M. Gostin, N. Palazzotto, J.T. Peterson, D.B. Lesmesister. 2023. Exploring the use of bioacoustic surveys to detect marbled murrelets in forest habitats. Wildlife Society’s Annual Conference, Louisville, Kentucky, Nov. 5 – 9.	November 2023	Passive acoustic monitoring, known as bioacoustics surveys, have become a useful tool to monitor for birds, land and marine mammals, frogs, and other vocal species. Our objective was to compare the detectability of Marbled Murrelet using these two survey approaches as an initial evaluation of the efficacy of bioacoustics surveys for this species
Duarte, A., A. Thomas, D. Lesmeister, J. Peterson, J.J. Valente, J. Jenkins, M. Gostin, M. Betts, M. Weldy, and Z. Ruff. 2023. Exploring the use of bioacoustic surveys to detect marbled murrelets in forest habitats. The Wildlife Society Annual Meeting, Louisville, KY.	November 2023	Terrestrial breeding habitat for endangered Marbled Murrelets is dwindling, and monitoring activity at potential inland breeding sites is expensive. Our work is helping to develop automated recording systems that will provide a more efficient method to monitor murrelets on their breeding grounds.
Duarte, A. and J.T. Peterson. 2019. An adaptive management strategy for Chinook salmon in California’s Central Valley. 55th Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, Bend, OR.	March 2019	Here we describe a structured, multi-phase approach that allowed decision-makers to identify program objectives and guide planning of broad-scale fisheries restoration activities. We emphasize the importance of using a rapid prototyping process and following up with the development and adherence to a transparent governance framework and decision making process.
Duarte, A. and J.Peterson. 2020. The role of optimization in solving decision-support models for natural resource management. Annual Meeting of the Oregon Chapter of the American Fisheries Society, March 4-6, Bend, OR.	March 2020	We introduce optimization procedures that allow managers to solve decision-support models by allowing the model to choose the optimal actions and sequence of actions among a discrete set of management alternatives. We then apply this approach to two case studies: water allocation decisions in the Upper Deschutes River Basin, Oregon and habitat restoration actions in California’s Central Valley.
Duarte, A. J.T. Peterson, C.A. Pearl, B. McCreary, S.K. Galvan, J.C. Rowe, and M.J. Adams. 2018. Habitat succession and landscape connectivity govern meta-demographic rates of a threatened anuran. 25th Annual Meeting of the Wildlife Society. Cleveland OH.	October 2018	We developed a spatial multi-state occupancy model to estimate meta-demographic rates (i.e., local persistence, colonization, and reproduction), while explicitly modeling landscape connectivity and accounting for imperfect detection. We fit this model to detection/non-detection data collected for Oregon spotted frog at 93 sites in the Deschutes and Klamath River Basins from 2010 to 2016.
Duarte ,A. and J.T. Peterson. 2019. Decision analysis to identify optimal state-dependent restoration policies for Chinook salmon in California’s Central Valley. Annual Meeting of the American Fisheries Society, Reno NV.	September 2019	We used a decision theoretic approach to identify restoration objectives and develop a probabilistic decision-support model for evaluating alternative Chinook salmon (Oncorhynchus tshawytscha) restoration actions. Using the decision-support model, we identified optimal state-dependent restoration policies that would yield the largest number of Chinook salmon adults in the future based on adult escapement, spawning and rearing habitat availability, and juvenile survival probability.
Divoky, G.J., A.K. Hovey, and D.D. Roby. February 2000. Timing of fledging in pigeon guillemots. Pacific Seabird Group annual meeting.	February 2000
Divoky, G.J., A.K. Hovey and D.D. Roby. January 2000. Video presentation of pigeon guillemot restoration research at the Alaska SeaLife Center. Exxon Valdez Oil Spill Restoration Workshop.	January 2000
Dickey, J, and MJ Davis. 2024. Exploring Lamprey Habitat Relationships: A Dual-scale Analysis in the Goose Lake Basin. Oregon American Fisheries Society 2024 Annual Conference, Bend, Oregon.	February 2024	This presentation outlines a novel use of stream spatial network modeling to predict lamprey distributions in the Goose Lake Basin.
Diaz, L., J.T. Peterson, and A. Duarte. 2023. A meta-analysis of Oncorhynchus mykiss habitat use and ontogenetic niche shifts incorporating geographic variability. Oregon Chapter of the American Fisheries Society Annual Meeting, Feb 28-Mar 3.	March 2023	In this study, we conducted a meta-analysis of age-specific O. mykiss habitat use to evaluate how niche-partitioning between age classes relates to in-stream and landscape level habitat variation. We found that air temperature, annual precipitation, catchment area forest cover, and ecoregion were all strong predictors of habitat use.
Diaz, L., A. Duarte, and J.T. Peterson.. 2024. An Agent-Based Model to Infer Life-History Patterns in Facultatively Anadromous Salmonids. 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i.	September 2024	Oncorhynchus mykiss exhibit a high degree of phenotypic plasticity in response to their physical environment. Variation in environmental conditions may affect whether O. mykiss adopt anadromy or mature in freshwater. This diversity of life-history strategies is hypothesized to promote population resilience to environmental changes as evidenced by the increased emphasis on conserving multiple life-history strategies within populations.
Diaz, L. J. Peterson, and A. Duarte. 2022. Evaluating and Managing Oncorhynchus Mykiss Life-History Diversity in Altered Landscapes. 152nd American Fisheries Society Annual Meeting, August 21-25, Spokane WA.	August 2022	Steelhead trout<i> Oncorhynchus mykiss</i> have a diverse life history that involves many combinations of freshwater residency and seaward migration. Life history variability creates a spatial mosaic of populations with differing tolerance to environmental disturbances and increases population stability across space and time. For unclear reasons, the proportion of <i>O. mykiss</i> that exhibit anadromy has declined in regions associated with urban development. Although the resident form of <i>O
Dew, A, and MJ Davis. 2024. Burning questions: exploring wildfire's influence on coldwater fish habitats in an endorheic basin. Oregon American Fisheries Society 2024 Annual Conference, Bend, Oregon.	February 2024	This work highlights the influence of fire on a sensitive, drought affected system that hosts a variety of native fish species. The work is of particular importance given the widespread and growing impacts of megafires in the Pacific Northwest.
DeWeber, T.J. and J.T. Peterson. 2017. A decision support process to identify instream flows for the Willamette River ecosystem. Willamette Fisheries Science Review, Corvallis OR, February 7-8.	February 2017	We are working with an interdisciplinary team of scientists and managers to develop decision support tools that integrate flow, habitat, and temperature models with ecological models for predicting the response of fish and herpetofauna to altered flow regimes
DeWeber, J.T. and J.T Peterson. 2018. Water in the Willamette: Identifying environmental flows for the ecosystem and listed salmonids. Annual Meeting of the Oregon Chapter of the American Fisheries Society, Eugene OR	March 2018	We describe a science-based decision support process to evaluate tradeoffs in management objectives and identify environmental flows that can sustain and help restore the Willamette River ecosystem. The primary steps of this process were to identify ecosystem objectives, review existing information linking flows to ecosystem objectives, identify key knowledge gaps, prioritize new analyses to address key knowledge gaps, and summarize information to help evaluate environmental flow needs.
Davis, R.J., and K.M. Dugger. 2012. Habitat modeling, mapping and monitoring for northern spotted owls. ForestSAT 2012 conference, Corvallis, Oregon, September 11-14, 2012.	September 2012
Davis, MJ. 2021. Addressing the intersection between climate change, anthropogenic disturbance, and local management actions in aquatic ecosystems. U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, Oregon, USA.	January 2021	I met with USGS FRESC to present my work on the integration of climate change, habitat restoration, management actions, and aquatic species responses.
Davis, MJ, I Woo, SEW De La Cruz, C Ellings, S Hodgson, and G Nakai. 2023. Terrestrial-aquatic linkages support food web productivity in an estuarine ecosystem mosaic. Ecological Society of America Annual Meeting. Portland, Oregon, USA.	August 2023	Our research builds upon existing literature in estuaries and other aquatic ecosystems showing how the composite functional capacity of the habitat mosaic is determined by its multiple, interconnected habitat types. Our findings are timely and relevant given international efforts to protect aquatic ecosystems—especially highly productive coastal ecosystems like estuaries—and threatened populations of ecologically, culturally, and economically important fish species.
Davis, MJ, I Woo, C Ellings, S Hodgson, D Beauchamp, G Nakai, and S De La Cruz. 2022. How will climate change affect estuarine nursery quality? Findings from a spatially explicit bioenergetics model in the Nisqually River Delta. Salish Sea Ecosystem Conference (online).	April 2022	This work synthesizes more than ten years of post-restoration monitoring data to examine how climate change, sediment management strategies, and restoration actions will impact juvenile salmon growth. It's representative of the combined efforts of multiple collaborating agencies.
Davis, MJ, E Dziedzic, and T Levi. 2024. Environmental DNA metabarcoding for the detection of native species in a drought-sensitive, endorheic basin. 154th Meeting of the American Fisheries Society, Honolulu, Hawaii.	September 2024	This work highlights the effectiveness of a new, 16S eDNA metabarcoding primer set ("Metameta") for the detection of Oregon's native fishes. We found that use of eDNA metabarcoding improved detection (in some cases almost doubling detection rates) for minnows and other species in the Goose Lake Basin.
Davis, MJ, CS Ellings, I Woo, S Hodgson, G Nakai, and SEW De La Cruz. 2021. Nisqually Delta restoration research and Chinook salmon recovery planning: state of the science. Nearshore Summit and Synthesis, Olympia, Washington, USA	March 2021	We present results from the first decade of post-restoration monitoring in the Nisqually River Delta, with a discussion of growth potential, prey availability, and carrying capacity.
Davis, MJ, A Dew, and K Carey. 2025. Community resilience is reflective of environmental stability in a drought-sensitive aquatic ecosystem. Oregon Chapter of the American Fisheries Society 2025 Annual Meeting, Bend, Oregon, USA.	February 2025	This work shows that community stability in a drought-sensitive, Great Basin ecosystem is directly related to its hydrologic stability.
Davis, MJ, A Dew, E Dziedzic, and T Levi. 2024. eDNA metabarcoding for the detection of sucker and other native species in the Goose Lake Basin. Oregon American Fisheries Society 2024 Annual Conference, Bend, Oregon.	February 2024	This work summarizes a comparison of eDNA and traditional sampling efforts in the Goose Lake Basin, where monitoring for native fish species had not previously occurred for 15 years. Findings will contribute to a standardized eDNA monitoring framework for Oregon State to be initiated by Oregon Department of Fish and Wildlife.
Dambacher, J.M., H.W. Li, and P.A. Rossignol. August 1999. Use of qualitative modeling to assess and predict effects of harvest on multi-species communities. 129th Annual Meeting of the American Fisheries Society.	August 1999
Dambacher, J., K. Jones, and H.W. Li. February 2001. Equal probability sampling for the status review of Great Basin redband trout: A method that worked! Oregon Chapter of the American Fisheries Society.	February 2001
Dambacher, J., H.W. Li, and P.A. Rossignol. February 2001. Historical reconstruction through qualitative modeling of the effects of exotic fish introduction in Tenmile Lakes, Oregon. Oregon Chapter of the American Fisheries Society.	February 2001
Cushing, D.A., D.D. Roby, and D.B. Irons. 2015. Temporal change in a subarctic marine bird community that experienced simultaneous effects of a major oil spill and climate variability. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	The findings of this paper suggest that changes in food webs have likely contributed to the lack of population recovery of some piscivorous marine bird species, including pigeon guillemots and marbled murrelets, following the Exxon Valdez oil spill in Prince William Sound.
Cushing, D.A., D.D. Roby, and D.B. Irons. 2015. Patterns of change over 23 years in the marine bird community of Prince William Sound, Alaska. Willamette Valley Bird Symposium, Corvallis, OR, 24 January.	January 2015	The presentation demonstrates the changes that have taken place in the seabird community of Prince William Sound, Alaska since the Exxon Valdez oil spill of 1989.
Cushing, D.A., D.D. Roby, K.J. Kuletz, and D.B. Irons. 2013. Decadal declines in abundance of Brachyramphus murrelets in Prince William Sound, Alaska. Marbled Murrelet Special Paper Session, 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study demonstrates the large and widespread population decline of marbled and Kittlitz's murrelets throughout Prince William Sound, Alaska in the aftermath of the Exxon Valdez oil spill.
Cushing, D.A., D.D. Roby, K.J. Kuletz, and D.B. Irons. 2013. Changes in abundance of Brachyramphus murrelets in Prince William Sound, Alaska, 1989-2012. Gulf of Alaska Plenary Session, Alaska Marine Science Symposium, Anchorage, AK.	January 2013	Demonstrates the major decline in marbled and Kittlitz's murrelets in Prince William Sound, Alaska since the Exxon Valdez oil spill.
Crawford, J.A., R.G. Anthony, and T. Forbes. 2008. Survival, Causes of Mortality, and Movements of Pygmy Rabbits in Southeastern Oregon. Annual Meeting of the Oregon Chapter, The Wildlife Society, Gleneden Beach OR.	February 2008
Craig, D.P., D.D. Roby, D.E. Lyons, and K. Collis. February 2000. The world's largest Caspian tern colony: A review of dynamics in the Pacific Coast population. Pacific Seabird Group annual meeting.	February 2000
Craig, D.P., D.D. Roby, D.E. Lyons, and K. Collis. February 2000. Current populations dynamics in the Pacific Coast Caspian tern population. Oregon Chapter of The Wildlife Society annual meeting.	February 2000
Craig, D.P., D.D. Roby, D.E. Lyons, and K. Collis. August 2000. Global status of Caspian Tern colonies: On the edge or over the top? 118th Stated Meeting of the American Ornithologists' Union.	August 2000
Craig, D., S. Lantz, K. Larson, and D. Roby. An evaluation of observer bias and accuracy of fish species and size in bill-loads of Caspian terns. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 24 January 2004.	January 2004
Couture, R., B. Haggas, S. Clements, D. Noakes, C. Schreck, J.H. Kim, B.K. Kristjansson and S. Boggio. Accelerated Smoltification through Diet Enrichment. 8th International Workshop on Smoltification, Corvallis OR.	September 2010
Couture, R., B. Haggas, S. Clements, D Noakes, C. Schreck, J.H. Kim, B.K. Kristjansson and S. Boggio. Accelerated Smoltification through Diet Enrichment. 8th International Workshop on Smoltification, September 20-24, Corvallis OR.	September 2011
Couch, C.E., K. Divilov, C.L. Herron, B. Wang, O. Hakanson, M.M. Scanlan, L. Whitman, M. Davis, C.B. Schreck, and J.T. Peterson. 2024. Effects of diet on juvenile Chinook Salmon microbiome and gene expression. Northwest Fish Culture Concepts 73rd Annual Meeting	December 2024	In this work, we evaluated changes in the gut microbiome and gene expression of juvenile Chinook Salmon (<i>Oncorhynchus tshawytscha)</i> on a standard high-lipid hatchery diet versus a low lipid wild-like diet. To evaluate the time scale at which diet alters the microbiome, we collected longitudinal samples over an eight-week period and switched the diets of a subset of fish twice during the experiment.
Couch, C.E., J.T. Peterson, E. Gardner, T. Neal, M. Larson, J.D. Romer, F. Monzyk, M. Kent, and C.B. Schreck. 2024. Unexpected Threats: Parasite Infections in Reservoir-rearing Juvenile Chinook Salmon in Willamette Basin Reservoirs. Annual meeting of the Oregon Chapter of the American Fisheries Society. Feb 26- Mar 1, Bend OR	February 2024	There was also evidence of parasite associated host mortality for reservoir-rearing Chinook salmon associated with severe infection loads of both parasite species. Laboratory studies further indicated that gill damage caused by juvenile stages of <i>S. californiensis</i> negatively affected the ability of juvenile to osmoregulate when exposed to saltwater up to four months post infection.
Couch, C., J. Peterson, M. Kent, and C. Schreck. 2023. Big fish with tiny friends: the role of the microbiome in Pacific salmon health. Oregon Chapter of the American Fisheries Society Annual Meeting, Feb 28-Mar 3	March 2023	Recent studies found that stress-induced cortisol release associated with microbial community shifts in salmonids, raising the question of how longer-term corticosteroid dynamics that accompany life history transitions affect salmonid microbiomes and ultimately, health outcomes. We found that treatment with slow-release implants of the corticosteroids cortisol or dexamethasone resulted in persistent changes to the gut microbiomes of juvenile Chinook salmon (Oncorhynchus tshawytscha).
Couch, C. C. Schreck, M. Kent, and J.T. Peterson. 2022. Microbial Biomarkers for Pre-Spawning Mortality in Chinook Salmon. Annual Willamette Fisheries Science Review, April 12-13, Corvallis OR.	April 2022	Pre-spawning mortality (PSM) presents a major problem for population recovery of spring Chinook salmon in the Willamette River basin. In certain reaches and years, PSM can exceed 90%, despite efforts to improve habitat and passage operations. PSM rates are highly variable between populations and years. At the population level, PSM associates with temperature and the density of hatchery origin fish, but drivers of PSM risk for individuals within a given population and year are poorly understood,
Contreras-Sanchez, W.M., V. Hernadez-Vidal, G.W. Feist, and C.B. Schreck. 2007. Clean technologies applied to aquaculture: Elimination of methyltestosterone from tilapia masculinization systems. Aquaculture America, Orlando, FL.	September 2007
Contreras-Sanchez, W.M., U. Hernandez, G.W. Feist, and C.B. Schreck. 2006. Clean technologies applied to aquaculture: elimination of methyltestosterone from tilapia masculinization systems. World Aquaculture Society Annual Meeting, Florence, Italy.	October 2006
Contreras-Sanchez, W.M., M.S. Fitzpatrick, M. Alonso, C.B. Schreck, and J.C. Leong. January 200. Identification of unique genes induced by trenbolone acetate during sex inversion of nile tilapia. Western Regional Conference on Comparative Endocrinology.	January 2000
Contreras-Sanchez, W., U. Hernandez-Vidal, G. Feist, G. Marquez-Coturier, and C.B. Schreck. March 4, 2004. Feminization of the tropical Gar (Atractosteus tropicus) and masculinization of the cichlid Castarrica (Cichlasoma urophthalmus) using steroid-enriched Artemia Nauplii. Presentation at the World Aquaculture Society Annual Conference. Honolulu, Hawaii.	March 2004
Contreras-Sanchez W., U. Hernandez-Vidal, G. Feist, G. Marquez-Coturier, and C.B. Schreck. March 3, 2004. Use of steroid-enriched Artemia Nauplii for sex-reversal: validation of the technique using Nile Tilapia as a model. Presentation at the World Aquaculture Society Annual Conference. Honolulu, Hawaii.	March 2004
Contreras-Sanchez W., M. Fernandez-Perez, I. Lopez-Ramos, G. Feist, and C.B. Schreck. March 3, 2004. Reproductive and growth performance of three lines of Nile Tilapia (Oreochromis niloticus) in Tabasco, Mexico. Presentation at the World Aquaculture Society Annual Conference. Honolulu, Hawaii.	March 2004
Contreras-Sanchez W., C. Schreck, U. Hernandez-Vidal, and G. Feist. March 4, 2004. Elimination of methyltestosterone from intensive masculinization systems using activated charcoal filters. Presentation at the World Aquaculture Society Annual Conference. Honolulu, Hawaii.	November 2004
Colvin, M.E., J. T. Peterson, C. Sharpe, S. Benda1, M. Kent, B. Dolan, and C. Schreck 2014. Upper Willamette River spring Chinook prespawn mortality synthesis and modeling. Annual Meeting of the American Fisheries Society Oregon Chapter, February 25-28, Eugene OR.	February 2014	This paper introduces the use of adaptive management for reducing uncertainty and improving the management of conservation hatchery practices.
Colvin, M.E., J. T. Peterson, C. Sharpe, S. Benda, C. Schreck, M. Kent, B. Dolan, and C. Caudill. 2013. Upper Willamette River spring Chinook prespawn mortality synthesis and modeling. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	This study is being used to identify alternative outplanting strategies for recovering threatened salmonids.
Collis, K., D.D. Roby, P.J. Loschl, Y. Suzuki, K. Kelly, E. Schniedermeyer, A.F Evans, B. Cramer, A. Turecek, and Q. Payton. 2016. Inland Avian Predation Management Plan: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids in the Columbia Plateau region, 2016. 2016 Anadromous Fish Evaluation Program Annual Review, Portland, Oregon.	November 2016	This paper presents to regional fisheries managers a progress update for implementation of the Inland Avian Predation Management Plan, which targets the two largest Caspian tern breeding colonies in the Columbia Plateau region in an effort to reduce predation rates on ESA-listed salmonids from the Upper Columbia River and from the Snake River.
Collis, K., D. Roby, P. Loschl, Y. Suzuki, A. Munes, J. Mulligan, E. Schniedermeyer, A. Evans, B. Cramer, A. Turecek, and Q. Payton. 2015. Inland Avian Predation Management Plan: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids in the Columbia Plateau Region, 2015. Anadromous Fish Evaluation Program Annual Review, Walla Walla, Washington.	December 2015	This presentation summarizes the results in 2015 of the implementation of the Inland Avian Predation Management Plan to reduce mortality of ESA-listed salmonid smolts to predation by Caspian Terns in the Columbia Plateau Region.
Collis, K., D. Roby, D. Lyons, C. Baird, T. Lawes, P. Loschl, Y. Suzuki, A. Piggott, A. Wilson, C. Congdon, A. Evans, B. Cramer, A. Turecek, and Q. Payton. Caspian Tern Management Plan for the Columbia River Estuary: Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids in the Columbia River estuary, 2015. Anadromous Fish Evaluation Program Annual Review, Walla Walla, Washington.	December 2015	This presentation describes the outcome of management in 2015 to reduce the size the Caspian Tern colony on East Sand Island in the Columbia River estuary and to attract displaced terns to alternative colony sites outside the Columbia River basin.
Collar, S., D.D. Roby, and D.E. Lyons. There goes the neighborhood: Site fidelity and group adherence at a Caspian Tern (Hydroprogne caspia) colony facing habitat reduction and increased predation. Fifth North American Ornithological Conference, Vancouver, B.C., 16 August.	August 2012
Collar, S., D.D. Roby, and D.E. Lyons. There goes the neighborhood: Site fidelity and group adherence at a Caspian Tern (Hydroprogne caspia) colony facing habitat reduction and increased predation. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8 February.	February 2012
Collar, S., D.D. Roby, and D.E. Lyons. A non-invasive technique of colony mapping for colonially nesting seabirds. 1st World Seabird Conference, Victoria, B.C., Canada. POSTER	September 2010
Collar, S., D.D. Roby, and D.E. Lyons. 2014. Top-down and bottom-up interactions influence reproductive success at a Caspian Tern super-colony. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This study demonstrates that nesting success at the largest Caspian Tern colony in the world is limited by Bald Eagle disturbance, but eagle disturbance rates are linked to Columbia River discharge, which in turn limits access to alternative prey.
Collar, S., D.D. Roby, D.E. Lyons, and O. Bailey. 2018. Top-down and bottom-up interactions influence fledging success at North America’s largest colony of Caspian Terns (Hydroprogne caspia ). 45th Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 21-24 February.	February 2018	This presentation documents the impacts of top-down factors (predators) and bottom-up factors (forage fish availability) and their synergistic interaction on the nesting success of Caspian Terns nesting at the largest breeding colony for the species in North America.
Cole, K.S., D.L.G. Noakes, N. Thompson, M. Blouin, B. Morrison, C.B. Schreck. Exposure to elevated temperature during early development affects sexual development in Oncorhynchus mykiss. NPAFC Third International Workshop on Migration and Survival Mechanisms of Juvenile Salmon and Steelhead in Ocean Ecosystems. Honolulu HI. 25-26 April 2013	April 2013	The prospect of altered sex ratios in O. mykiss in response to increased climatic temperatures associated with a reduction in numbers of phenotypic females has significant implications on a number of levels. Both population management plans and conservation strategies are usually developed on an assumption of balanced sex ratios.
Cogliatie, K., R. Chitwood, C. Sharpe, D. Noakes, C. Schreck. (2016). Effects of alternative rearing strategies on body morphology and caudal fin quality in juvenile Chinook salmon. Northwest Fish Culture Conference. Dec 6-8, 2016.	December 2016	We found that hatchery and natural reared fish had significantly different body morphology, and that wild fish surrogates were more similar to naturally reared fish. Furthermore, we showed greater caudal fin asymmetry in hatchery fish compared to both natural and surrogate reared fish. Our results suggest that altered rearing strategies are effective at producing more wild like phenotypes in juvenile Chinook salmon.
Cogliati, Karen M., David L. G. Noakes, Carl B. Schreck, Cameron S. Sharpe. (2016).Developing and delivering wild fish surrogate Chinook salmon and steelhead trout. Willamette Science Review, Feb 7-8, 2016.	February 2016	Our current research is investigating morphological and behavioral differences between juveniles with different early life history experiences. Results of these studies will help differentiate fall and spring migrants at an early stage so that they can be appropriately reared based on their natural migrant life history.
Cogliati, K., et al. (2017). Early phenotypic differences as a predictor for juvenile Chinook salmon downstream migration? Oregon Chapter for American Fisheries Society, Bend, OR. Feb 28-March 3.	February 2017	To date, we’ve detected 60% of fish, with the majority detected shortly after release. Variation across groups was 54-64% based on emergence timing. Detection of juvenile downstream migration will continue through Spring 2017. As many as 40% of fish released may still be rearing in upstream habitat and could migrate in the spring as yearlings. Results from this study may provide valuable information on how early phenotypic traits affect migration patterns expressed later in life.
Cogliati, K., et al. (2015). Applications of alternative rearing strategies to produce juvenile migratory phenotypes in spring Chinook salmon. Northwest Fish Culture Conference. Wilsonville, OR, December 1-3, 2015.	December 2015	Our results suggest that vertically sorted phenotypes may reflect different juvenile life history tactics and by manipulating various environmental variables we can influence the developmental trajectories and migration phenotypes juvenile Chinook salmon express.
Cogliati, K., R. Chitwood, C. Sharpe, D. Noakes, C. Schreck. (2017). The making of designer fish for passage studies. International Conference on Engineering and Ecohydrology for Fish Passage, Corvallis, June 19-21, 2017.	June 2017	When delivered, all evidence suggested that our wild fish surrogates were smolting; therefore, their movement patterns have met the requirements of the studies. Our current rearing protocols includes rearing at low density, feeding a low lipid diet, including structure in rearing tanks, and using natural growth adaptive feeding strategies. We continuously evaluate the effectiveness and phenotypic accuracy of our rearing protocol to ensure that the final product is consistent with project goals.
Cogliati, K., B. Billman, D. Noakes, C. Schreck, C. Sharpe, R. Chitwood. (2015). Environmental determinants of migratory life history phenotypes in juvenile spring Chinook salmon. American Fisheries Society 145th Annual Meeting. Portland, Oregon, August 16-20, 2015.	August 2015	There is considerable variation in downstream-movement life history tactics displayed by Chinook salmon Oncorhynchus tshawytscha in the Upper Willamette River, Oregon, USA. However, it is unclear if juvenile migration phenotypes are established in response to environmental stimuli or if they are established naturally much earlier in life. We conducted rearing trials to experimentally determine the effects of environmental variables on the developmental trajectories and expression of migration
Close, D., M.S. Fitzpatrick, and H.W. Li. February 2001. The effects of intraperitoneally implanted radio transmitters on the physiology and swimming performance of Pacific lampreys (LAMPETRA TRIDENTATA). Oregon Chapter of the American Fisheries Society.	February 2001
Close, D., M.S. Fitzpatrick, and H.W. Li. February 2001. Swimming performance and exhaustive stress in Pacific lampreys (LAMPETRA TRIDENTATA). Oregon Chapter of the American Fisheries Society.	February 2001
Close, D., M.S. Fitzpatrick, and H.W. Li. February 2001. Status and importance of Pacific lampreys (LAMPETRA TRIDENTATA) in the Columbia River Basin. Oregon Chapter of the American Fisheries Society.	February 2001
Clements, S.P., C.B. Schreck, M.D. Karnowski, and D.B. Jepsen. 2003. Does size matter: a comparison of the behavior of juvenile salmonids in a large and small estuary. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Clements, S.P., C.B. Schreck, D.B. Jepsen, and M.D. Karnowski. 2003. Use of radio and acoustic telemetry to study the behavior and survival of juvenile salmonids in a large estuary and nearshore ocean. Fifth Conference on Fish Telemetry.	January 2003
Clements, S.P. and C.B. Schreck. January 2001. Why did the salmon cross the road II?: The neurocrine control of locomotor behaviours in juvenile salmonids. Western Regional Conference on Comparative Endocrinology.	January 2001
Clements, S.P. and C.B. Schreck. January 2001. Freshwater to saltwater: An investigation into the physiological basis of migration and comparison of the migratory behavior of salmonid smolts in large vs. small systems. 6th International Workshop on Salmonid Smoltification.	January 2001
Clements, S.P. and C.B. Schreck. 2003. Behavior and survival of juvenile salmonids in the Nehalem Estuary. Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Clements, S., and C.B. Schreck. January 2000. Neuropeptides: Why did the salmon cross the road? Western Regional Conference on Comparative Endocrinology.	January 2000
Clements, S., and C.B. Schreck. August 2000. Neuropeptides: Why did the salmon cross the road? International Fish Biology Congress.	August 2000
Clements, S., M. Karnowski, and C.B. Schreck. 2002. Does size matter?: A comparison of the behavior of juvenile salmonids in a large and small esturary. International Congress of Fish Biology, Vancouver BC Canada.	July 2002
Clements, S., C.B. Schreck, M. Karnowski, D. Jepsen, N. Truelove, and A.M. Baptista. February 19, 2004. Environmental and management impacts on juvenile salmonid migratory behavior and survival. Presentation at the Annual Meeting of the Oregon Chapter of the American Fishery Society.	February 2004
Clemens, B.J., van de Wetering, S., Wyss, L., McCoun-Tavers, R., and Schreck, C.B. Physiological and Behavioral Diversity in the Adult Pacific Lamprey, Entosphenus tridentatus, During the Freshwater Spawning Migration. Oregon American Fisheries Society Annual Meeting, Eugene Oregon, Feb 29-March 1.	February 2012
Clemens, B.J., T. Workman, S. van de Wetering and C.B. Schreck. Evidence that warm temperature, but not holding and transportation, raises blood plasma levels of the reproductive horone, 17b-estradiol, in immature adult Pacific lamprey, Entosphenus tridentatus. Annual meeting of the Oregon Chapter of the American Fisheries Society, February 22-25, Bend, OR.	February 2011
Clemens, B.J., T. Workman, M. Morasch, I. Courter, S. Duery, R. McCoun, L. Schwabe and C.B. Schreck. Where the Wild Things Are: Patterns and Motives in Migration and Habitat Use in Pacific Lamprey in the Willamette Basin. Oregon Chapter of the American Fisheries Society 46th Annual Meeting, Eugene OR, 24 February.	February 2010
Clemens, B.J., S. van de Wetering and C.B. Schreck. 2008. Relating Migration Characteristics of Adult Pacific Lamprey, Entosphenus tridentatus, to High Summertime Temperatures. International Congress on the Biology of Fish, Portland OR.	July 2008
Clemens, B.J., R.J. Magie, D.A. Young, M.G. Mesa, H.W. Li, and C.B. Schreck. 2006. Movements and distribution of Radio-tagged adult Pacific lamprey in the Willamette Basin. 42nd annual meeting of the Oregon Chapter of the American Fisheries Society, Sunriver, OR.	October 2006
Clemens, B.J., R. Lampman, S. Moyers and C.B. Schreck. Miration behavior and habitat use of adult Pacific lamprey from two rivers in Western Oregon USA: complex behavior in complex systems. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
Clemens, B.J., M.D. Karnowski, and C.B. Schreck. 2005. Losses of radio-tagged smolts to avian predators in the Columbia River estuary: What we know and how to better understand what we don't know. Oregon Chapter of The American Fisheries Society 41st annual meeting, Corvallis OR.	February 2005
Clemens, B.J. and C.B. Schreck. 2006. Survival estimates of outmigrating juvenile salmonids in the lower Columbia River and estuary, 2002-2004. 7th International Congress on the Biology of Fish, St. John?s, Newfoundland, Canada.	October 2006
Clemens, B., S. van de Wetering and C.B. Schreck. 2008. Consequences of Summertime Thermal Regimes on Reproductive Maturation of Adult Pacific Lamprey, Entophenus tridentatus. Plasticity or Pre-programmed Synchronization in Maturation Timing? American Fisheries Society Western Division Annual Meeting, Portland OR.	May 2008
Clemens, B., S. Sower, C. Schreck, and S. van de Wetering. 2007. The physiological ecology and life history of the enigmatic pacific lamprey, Entosphenus tridentatus, during freshwater residency. 37th Western Regional Conference on Comparative Endocrinology, San Juan Island, WA.	September 2007
Clark, J., D. Jackson, and K.M. Dugger. 2020. RELATING BLACK-TAILED DEER HABITAT SELECTION TO SURVIVAL. The 27th Annual Meeting of The Wildlife Society, Louisville, KY, Sept. 27-Oct. 1, 2020.	September 2020	We used 3rd order winter resource selection function (RSF) models developed using mixed effects logistic regression and a variety of topographic, vegetative and landscape composition explanatory variables. We then linked RSF model results to monthly winter rates within a known-fate framework to assess the relationship between survival and habitat resources selected by deer within their home ranges.
Clark, J, D Jackson, and KM Dugger. 2022. Fall Habitat Selection by Columbian Black-tailed deer. Oregon Chapter of The Wildlife Society 2022 Annual Conference, Newport, OR, Feb 23-25, 2022.	February 2022	Our results indicated that deer are prioritizing resources critical to fitness at coarse spatial scales (selecting a home range on the landscape) over selecting attributes that presumably enhance fitness at finer spatial scales (within home range selection). This study represents the first to measure fall CBTD habitat selection using GPS data across a large spatial extent in Oregon.
Clark, J, D Jackson, and KM Dugger. 2022. Choices: habitat selection impacts Columbian black-tailed deer survival in Oregon. Oregon Chapter of The Wildlife Society 2022 Annual Conference, Newport, OR, Feb 23-25, 2022.	February 2022	Survival of female Columbia black-tailed deer in southwestern Oregon was lowest during the fall part of the annual cycle (Oct-Dec) which coincides with hunting, the rut, migration, and a seasonal decline in food availability and quality. Survival was also related to fall home range characteristics and observed patterns may reflect the challenges female deer face when making trade-offs between predation risk and the need to acquire food.
Clark, D.A., and R.G. Anthony. Habitat Selection of Northern Spotted Owls in Post-fire Landscapes in Southwestern Oregon. Annual Conference of Northwest Vertebrate Biologists, Seattle WA, 27 March.	March 2009
Clark, D.A. and R.G. Anthony. 2007. Demography and Habitat Selection of Northern Spotted Owls in Post-fire Landscapes of Southwestern Oregon, Workshop on the Ecology of Northern Spotted Owls after Wildfires, Medford OR.	October 2007
Clark, D.A. and R.G. Anthony. Habitat selection by northern spotted owls in relation to wildlife. Workshop on Post-fire Research and Policy, Oregon State University, Corvallis OR.	March 2007
Clark, D.A. and R.G. Anthony. Effects of wildlife on movements and habitat selection by northern spotted owls. Workshop on Recent Research Advances on Northern Spotted Owls, Portland OR.	February 2007
Clark, D. and R.G. Anthony. Post-fire habitat use and home range sizes of northern spotted owls in southwestern Oregon. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Clark J., D. Jackson, and K.M. Dugger. 2020. Habitat Selection by Black-tailed Deer in a Heterogeneous Landscape. Oregon Chapter of The Wildlife Society's Annual Meeting, February 4-7, 2020, Eugene, OR.	February 2020	During 2012-2017, the Oregon Department of Fish and Wildlife attached GPS radio-collars to adult female black-tailed deer in 4 Wildlife Management Units (WMUs); two WMUs in the Coast Range and two WMUs in the Cascade Range. We developed separate winter resource selection functions (RSF) for black-tailed deer in the Coast Range (n=86) and the Cascade Range (n=86) using mixed effects logistic regression (MELR) to investigate the relationship between habitat selection and a variety of topographic,
Chitwood, R., Schreck, C.B., Billman, E.J. Unrein, J., Schroeder, R.K., Sharpe, C.S., Couture, R. and Noakes, D.L.G. Tactics to Produce Wild Phenotypes in Artificially Reared Spring Chinook Salmon. International Congress on the Biology of Fish. Edinburgh, UK. August 2-7, 2014	August 2014	We explored the role of environmental variables that could cause fish to develop on trajectories associated with these phenotypes. Given that our evaluations are based on laboratory-reared fish, we also assessed other fish quality variables for resemblance to wild fish.
Chen. S., D.D. Roby, S. Chan, H.-W. Yuan, D.E. Lyons, Y. Suzuki, Z. Fan, Y. Lu, and C.-H. Hong. Approaches toward restoration of the critically endangered Chinese Crested Tern. 43rd Annual Meeting of the Pacific Seabird Group, Kahuku, Hawaii.	February 2016	This presentation describes the challenges and unexpected successes of recent efforts to prevent the critically endangered Chinese Crested Tern from becoming extinct. A strategy is described for restoring the species to the East China Sea through international collaboration to provide a network of protected islands as nesting sites.
Chen, S., D.D. Roby, S. Chan, Z. Fan, Y. Lu, and D.E. Lyons. 2015. Conservation of the critically endangered Chinese Crested Tern: Status, problems, and future plans. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper describes the current status and future plans to attempt to rescue the critically endangered Chinese Crested Tern from extinction.
Chan, S., S. Chen, D.D. Roby, S.D. Collar, Q. Huang, and D.E. Lyons. 2014. Success in restoration of a breeding colony of the Chinese Crested Tern in the Jiushan Islands, Zhejiang Province, China. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This paper reports on the surprisingly successful attempt to restore a breeding colony of the critically endangered Chinese crested tern where illegal harvest of tern eggs had caused the colony to be abandoned.
Chan, S., S. Chen, D.D. Roby, D.E. Lyons, Y. Suzuki, and Y.T. Yu. 2016. Another successful year for restoration of the Chinese Crested Tern (Thalasseus bernsteini) colony on Tiedun Dao, Jiushan Islands, China (2015): report and future plans. 43rd Annual Meeting of the Pacific Seabird Group, Kahuku, Hawaii.	February 2016	This presentation provides an update on the restoration of a Chinese Crested Tern colony in the Jiushan Islands, Zhejiang Province, PR China. This recently restored colony has attracted over 90% of the world's population of this critically endangered species.
Chan, S., S. Chen, D.D. Roby, C. Chen, and P. Ding. 2015. OBSERVATIONS OF A RESTORED BREEDING COLONY OF CHINESE CRESTED TERNS IN THE JIUSHAN ISLANDS, ZHEJIANG PROVINCE, CHINA DURING THE 2014 BREEDING SEASON. 42nd Annual Meeting of the Pacific Seabird Group, San Jose, California.	February 2015	This paper describes a very successful attempt to restore a lost breeding colony of Chinese Crested Terns in the Jiushan Islands in the East China Sea during the 2014 nesting season.
Castillo, G. and H.W. Li. February 2001. Distribution, trophic role and community impacts of introduced species in two Oregon estuaries. Oregon Chapter of the American Fisheries Society.	February 2001
Carswell, B.L., J.T. Peterson, and C.A. Jennings. 2013. Abundance and diversity of sub-adult fishes in impounded South Carolina marshes: the effects of tidal exchange. GA Chapter - American Fisheries Society. Jekyll Island, GA.	January 2013	This work identified that the lack of tidal exchange in waterfowl impoundments significantly reduced the abundance and diversity of larval and juvenile fishes compared to fish impoundments that had twice daily tidal exchange. This information is useful to impoundment managers who want to promote fish diversity and abundance in impounded coastal marshes.
Carey, K., L. Whitman, C. Sharpe, C. Couch, M.L. Kent, J. Sanders, C.B. Schreck, and J.T. Peterson. 2023. Prespawning Mortality of Fall Creek Willamette Chinook Salmon: Evaluation Of The Effects Of A New Trap At The Adult Fish Collection Facility. Willamette Fisheries Science Review Corvallis OR April 5-6.	April 2023	We developed a decision support model consisting of three models each representing a hypothesis of the factor influencing salmon prespawn mortality and conducted sensitivity analyses. The decision alternatives included flow management at Fall Creek Dam, reducing human disturbances on outplanted fish, and flow management in the Willamette Basin during upstream migration.
Carey, K, A Dew, and MJ Davis. Fish assemblages in the Great Basin: disentangling environmental effects on community structure. Oregon Chapter of the American Fisheries Society 2025 Annual Meeting, Bend, Oregon, USA.	February 2025	This presentation outlines environmental drivers of native fish community structure in a drought-sensitive, endorheic basin. This knowledge is crucial for understanding how habitat management actions will affect target species.
Campbell, D. and eleven co-authors including C.B. Schreck. 2005. Western airborne contaminants assessment project (WACAP) - preliminary results from a study in the western United States. Acid Rain. Prague, Czech Republic.	September 2005
C. R. Jackson, J. R. Webster, K. K. Cecala, J. R. Frisch, J. E. Kirsch, J. C. Maerz, D. S. Leigh, J. T. Peterson, C. M. Pringle, and J. D. Knoepp. 2018. Hydrologic, Morphologic, and Water Quality Effects of Rural Development in Streams of the Southern Blue Ridge Mountains. Annual Meeting of the Society for Freshwater Science, May 20-24, Detriot MI.	May 2018	We conducted several cross-landscape studies of streams in the exurbanizing but largely rural landscape of the southern Appalachians. Water quality changes wrought by low density rural development influenced the presence/absence of focal native stream taxa.
Bringolf, R.B., A. Fritts, and J. Peterson. 2012. Non-Lethal Assessment of Drought-Related Stress in Mussels. Freshwater Mollusk Conservation Society 2012 Symposium, April 18-20, Athens GA. (INVITED)	April 2012
Brill, G, MJ Davis, and A Carpenter. 2024. Quantifying adult white sturgeon (Acipensar transmontanus) movement in the John Day Reservoir, Columbia River. Oregon American Fisheries Society 2024 Annual Conference, Bend, Oregon.	February 2024	This work highlights differences in habitat use between male and female white sturgeon, with implications for recruitment failure in the John Day Reservoir.
Brignon, W.R., Schreck, C.B., and Schaller, H.A. Survival and Development of Hydraulically Sampled Bull Trout Eggs and Future Plans for Captive Rearing Research. Oregon American Fisheries Society Annual Meeting, Eugene Oregon, Feb 29-March 1.	February 2012
Brignon, W.R., Schreck, C.B., Olson, D.E., Schaller, H.A. Captive rearing of bull trout within the framework of adaptive resource management and Strategic Habitat Conservation. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	Focusing on a captive rearing strategy, I will evaluate how the hatchery environment influences bull trout development, specifically morphology and brain development, and determine how these developmental metrics affect behaviors that are crucial for post-release survival of reintroduced individuals. Rearing a fish in captivity that is phenotypically similar to wild fish should improve the success of any reintroduction program.
Brignon, W.R., H. Schuller, D. Olsen and C.B. Schreck. Hey, Can You Stay Still for a Second - I'm Trying to Model Your Microhabitat Use. Oregon Chapter of The American Fisheries Society 45th Annual Meeting.	February 2009
Brignon, W.R., D.E. Olson, H.A. Schaller, C.B. Schreck. Can a Conservation Hatchery Program Support Recovery of Bull Trout. Northwest Fish Culture Conference, Boise, ID. Dec 3-5, 2013.	December 2013	We will combine phenotypic and behavioral research with impacts to donor populations and predicted dynamics of reintroduced populations to understand the value of different reintroduction strategies. This will serve as an example of how to evaluate conservation hatchery programs within the framework of adaptive resource management and Strategic Habitat Conservation.
Brignon, W.R., D. Olson, H.A. Schaller and C.B. Schreck. Eagle Creek Ecological Interactions: Residual Hatchery Steelhead and Wild Salmonids. 8th International Workshop on Smoltification, September 20-24, Corvallis OR.	September 2011
Brignon, W.R., D. Olson, H.A. Schaller and C.B. Schreck. Eagle Creek Ecological Interactions: Residual Hatchery Steelhead and Wild Salmonids. 8th International Workshop on Smoltification, Corvallis OR.	September 2010
Brignon, W., C.B. Schreck, H.A. Schaller. (2014). Captive Rearing Environment Effects Bull Trout Phenotype: Implications for Recovery Strategies. USFWS Fish Hatchery Managers Workshop Nov 12-14 and Northwest Fish Culture Conference Dec 2-4.	November 2014	The goal of our work is to develop a biologically sound conservation hatchery program through a better understanding of the effects of captivity on the bull trout phenotype and how that phenotype may effect post-release survival of captive reared individuals.
Briggs, U.S.Y., R.C. Baumbusch, K.M. Dugger, and J.D. Wiens. 2020. Partial consumption of prey in barred owl (Strix varia) diets. 67th Annual Meeting of The Western Section of The Wildlife Society, February 3-7, 2020, Redding, CA.	February 2020	To better understand the energetic contributions of the diverse prey taken by barred owls we identified stomach contents of barred owls collected in a large-scale removal experiment, recording which prey were eaten whole or in-part. From 1329 barred owls we documented 4966 prey items and preliminary analyses suggested that prey items heavier than 100g were less likely to be consumed whole. Thus, prey taxa such as leporids, mountain beavers, and gray squirrels were always partially consumed, whe
Boxall, G., G. Giannico, and H. Li. 2005. Topography and fragmented populations of lahontan cutthroat trout (Oncorhynchus clarki henshawi). Annual meeting of the American Fisheries Society, Juneau AK.	September 2005
Boxall, G., G. Giannico, H. Li and M. Varner. 2005. Topography and distribution patterns of lahontan cutthroat trout (Oncorhynchus clarki henshawi) in a stream habitat mosaic. 41st meeting of the Oregon Chapter of the American Fisheries Society, Corvallis OR.	September 2005
Bottom, D., S. Bryce, S. Clarke, J. Dambacher, C. Frisell, B. Hughes, H. Li, D. McCullough, A. McGie, K. Moore and R. Nawa. An ecosystem strategy to conserve aquatic biodiversity. 40th Annual Meeting of the Oregon Chapter of the American Fisheries Society, Sun River OR, 18 February 2004.	February 2004
Boomer, K. and J.T. Peterson. 2015. Downscaling watershed model predictions and characterizing structural uncertainty to support decision-making and develop monitoring priorities. 23rd Biennial Conference of the Coastal and Estuarine Research Federation, Portland OR.	November 2015	With limited funds and high public expectations, it is critical to assess those uncertainties in the context of watershed management. Accordingly, cumulative retention benefits predicted by a suite of high-resolution watershed models were compared to evaluate how much our return on investment could vary in relation to the actual benefits provided by the selected management actions. We identified nearly 20,000 restoration opportunities for Frederick County, MD and evaluated how bmp implementat
Bixler, K.S., L.J. Adrean, D.E. Lyons, and D.D. Roby. 2014. Comparison of cormorant diets in two Oregon estuaries. 41st Annual Meeting of the Pacific Seabird Group, Juneau, Alaska.	February 2014	This study compares and contrasts the diet composition of double-crested cormorants in different estuaries along the coast of Oregon, with special emphasis on salmonid smelt consumption.
Bixler, K.S., D.E. Lyons, Y. Suzuki, and D.D. Roby. 2013. Impact of Bald Eagles on nesting Double-crested Cormorants at the large colony on East Sand Island in the Columbia River estuary. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study documents the intense disturbance to the double-crested cormorant colony on East Sand Island, the largest of its kind anywhere, caused by Bald Eagles, and the impacts eagle disturbance has on cormorant nesting success.
Bixler, K.S., D.E. Lyons, T.J. Lawes, P.J. Loschl, and D.D. Roby. 2016. Interspecific kleptoparasitism of Caspian Terns by gulls in interior Washington, Oregon, and California. 43rd Annual Meeting of the Pacific Seabird Group, Oahu, Hawaii.	February 2016	This presentation documents the regional differences in rates of gull kleptoparasitism of nesting Caspian Terns and provides strong evidence that high rates of kleptoparasitism limit Caspian Tern nesting success.
Bixler, K.S., D.E. Lyons, P.J. Loschl, T.J. Lawes, and D.D. Roby. 2015. WHAT CAN PREY DELIVERY RATES TELL US ABOUT FOOD AVAILABILITY FOR CASPIAN TERNS? 42nd Annual Meeting of the Pacific Seabird Group. San Jose, California.	February 2015	This paper demonstrates that prey delivery rates bay more among colonies than they do among years at the same colony, suggesting that they reflect the particular foraging ecology Caspian terns at each colony.
Bixler, K.S., D.D. Roby, and D.B. Irons. Is the recovery of pigeon guillemots from the Exxon Valdez Oil Spill in Prince William Sound, Alaska limited by food availability or nest predation? 2010 Alaska Marine Science Symposium, Anchorage AK. POSTER	January 2010
Bixler, K.S., D.D. Roby, and D.B. Irons. Is the recovery of pigeon guillemots from the Exxon Valdez Oil Spill in Prince William Sound, Alaska limited by food availability or nest predation? 2010 Alaska Marine Science Symposium, Anchorage AK. POSTER	February 2010
Bixler, K.S., D.D. Roby, and D.B. Irons. Is the recovery of Pigeon Guillemots from the Exxon Valdez oil spill in Prince William Sound, Alaska limited by food availability or nest predation? 1st World Seabird Conference, Victoria, B.C., Canada. POSTER	September 2010
Bixler, K.S., D.D. Roby, D.E. Lyons, Y. Suzuki, A. Patterson, S. Collar, T. Lawes, P. Loschl, N.J. Hostetter, and K. Collis. Patterns in nesting success of Caspian Terns across western North America in 2011. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 8 February.	February 2012
Bixler, K.S., D.D. Roby*, and D.B. Irons. 2009. Is the recovery of the Pigeon Guillemot population in Prince William Sound, Alaska limited by top-down or bottom-up factors? 2009 Alaska Marine Science Symposium, Anchorage AK, 20 January.	January 2009
Bixler, K.S., D.D. Roby and D.B. Irons. 2008. Pigeon Guillemot Restoration Research in Prince William Sound, Alaska. Alaska Marine Science Symposium, Anchorage AK.	January 2008
Bixler, K.S., D.D. Roby and D.B. Irons. 2008. Pigeon Guillemot Restoration Research in Prince William Sound, Alaska. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Bixler, K., D.E. Lyons, D.D. Roby, Y. Suzuki, M.K.D. McDowell, and T.J. Lawes. 2017. American White Pelicans for two colonies in Oregon: natal philopatry to coastal and interior regions? 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	Based on resightings of banded birds from two colonies in Oregon, there is an apparent separation between American White Pelicans that nest near the coast and those that nest in the high desert of eastern Oregon, with little interchanges between these two sub-populations. This suggests that there may be two management units of white pelicans in the Pacific Flyway.
Bixler, K., D.D. Roby, and D.B. Irons. 2007. Pigeon Guillemot Restoration Research in Prince William Sound, Alaska. Fifth Annual Symposium on Research Advances in Fisheries, Wildlife, and Ecology. Corvallis OR.	November 2007
Bixler*, K.S., D.D. Roby, and D.B. Irons. 2009. Is the recovery of Pigeon Guillemots from the Exxon Valdez Oil Spill in Prince William Sound, Alaska limited by top-down or bottom-up factors? 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 23 February.	February 2009
Billman, E.J., C. Sharpe, R. Chitwood, R.B. Couture, J. Unrein, D. Noakes, and C.B. Schreck. 2014. Determinants of Downstream Movement Behaviors in Juvenile Spring Chinook Salmon. 19th Biennial Ecological and Evolutionary Ethology of Fishes Meeting. Corvallis, Oregon.	June 2014	.
Billman, E., Noaks, D., Schreck, C., Sharpe, C. Chitwood, R., Couture, R., O'neil, J., Unrein, J., Hakanson, O. Development of wild fish surrogates for UWR spring Chinook salmon, Oncorhynchus tshawytscha. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	The objective of our research was to develop alternative rearing strategies for producing hatchery-origin juveniles that reflect the migratory and fitness phenotypes of their wild counterparts to be used as wild surrogates for tagging studies.
Benoit-Bird, K. G.V. Byrd, L.W. Cooper, J.M. Grebmeier, S. Heppell, D.B. Irons, S. Kitaysky, K.A. Kuletz, C.V. Jay, D.D. Roby, and A.W. Trites. 2009. Bering Sea Integrated Ecosystem Research Program: Patch Dynamics Study 2008. 2009 Alaska Marine Science Symposium, Anchorage AK, 21 January.	January 2009
Benda, S.E., M.L. Kent, K. Berkenkamp, R. Chitwood, V. Watral, C.C. Caudill, R. Mann and C.B. Schreck. Prespawn mortality in spring Chinook salmon: parasite burden and mitigation strategies. 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle WA.	September 2011
Benda, S.E., Kent, M.L., Unrein, J., Chitwood, R., Caudill, C., Naughton, G., Schreck, C.B. A closer look: stress and parasites in prespawn mortality. Annual Meeting of the American Fisheries Society Oregon Chapter, Feb 18-21.	February 2013	With prespawn mortality as high as 90%, death before spawning can have a serious impact on population sustainability for spring Chinook salmon, Oncorhynchus tshawytscha, in the Willamette River. With this in mind, we set up two experiments addressing parasites, stress, and their interactions.
Benda, S., Unrein, J., Kent, M.L., Schreck, C.B., Naughton, G., and Caudill, C.C. Prespawn mortality in Spring Chinook salmon: parasite burden and mitigation tactics. International Congress on the Biology of Fish, Madison Wisconsin, July 2012.	July 2012
Benda, S., Schreck, C.B., Kent, M., Unrein, J., Chitwood, R., Watral, V., Caudill, C.C., and Naughton, G. Prespawn mortality in spring Chinook salmon in the upper Willamette River: potential causes and management tactics. Oregon American Fisheries Society Annual Meeting, Eugen, OR, Feb. 29-Mar. 1.	February 2012
Benda, S., Schreck, C.B., Kent, M., Unrein, J., Chitwood, R., Caudill, C.C., and Naughton, G. Stress, parasite burden and senescence: Reproductive dilemmas of Chinook salmon (Oncorhynchus tshawytscha). International Symposium on Fish Endocrinology, Buenos Aires, Argentina, September 2012.	September 2012
Benda, S., C.B. Schreck, M. Kent, K. Berkenkamp, R. Chitwood, V. Watral, C.C. Caudill and R. Mann. Prespawn mortality in spring Chinook salmon in the upper Willamette River: potential causes and management strategies. Annual meeting of the Oregon Chapter of the American Fisheries Society. February 22-25, Bend OR.	February 2011
Benda, S., C.B. Schreck, M. Kent, K Berkeknkamp, R. Chitwood, V. Watral, C.C. Caudill and R. Mann. Prespawn mortality in spring Chinook salmon in the upper Willamette River: potential causes and management strategies, 141st Annual Meeting of the American Fisheries Society, September 4-8, Seattle Wa.	September 2011
Bayley, P.B. and H.W. Li. 2003. Response of fish to grazing enclosures: have we been successful in restoring habitat? Annual meeting of the Oregon Chapter of the American Fisheries Society.	January 2003
Baxter, C.V., C.E. Torgersen, H.W. Li, and B.A. McIntosh. May 2000. Longitudinal patterns in fish assemblage and stream habitat relationships; Part II. Temporal dynamics and the role of migration. 48th Annual Meeting of the North American Benthological Society.	May 2000
Baxter, C., C. Torgersen, and H.W. Li. June 2001. Large-scale habitat complementation and the ecological importance of migration to stream fishes in a Pacific Northwest river system. North American BEnthological Society Meetings.	June 2001
Baxter, C., C. Torgersen, and H.W. Li. February 2001. Life in motion: The importance of migration to stream fishes in northeastern Oregon. Oregon Chapter of the American Fisheries Society.	February 2001
Baumbusch, RC, KM Dugger, and JD Wiens. 2022. Diet Composition of Barred Owls (Strix varia) in the Pacific Northwest. Oregon Chapter of The Wildlife Society 2022 Annual Conference, Newport, OR, Feb 23-25, 2022.	February 2022	Barred owl diets differed substantially from that of northern spotted owls and previous studies of barred owl diets, which found a heavier reliance on mammals relative to our study. These preliminary results suggest that: 1) successful expansion of barred owls within the northern spotted owl's range may be due in part to its diverse and flexible diet; and 2) a wide array of species not preyed upon by spotted owls (e.g., salamanders, frogs, insectivorous mammals) could be at risk from this novel
Baumbusch, RC, KM Dugger, JP Dumbacher, JM Higley, SL Medina, and JD Wiens. 2021. Diet Composition of Barred Owls (Strix varia) across the Range of the Northern Spotted Owl (Strix occidentalis caurina). 2021 Raptor Research Foundation joint Conference with the Neotropical Raptor Network, October 8-14, 2021, Boise, ID, USA.	October 2021	Here we present preliminary results of stomach content analysis from 1559 Barred Owls collected at five localities across the Northern Spotted Owl range in Washington, Oregon, and California. Barred Owl diets differed substantially from those of Northern Spotted Owls as they included a much wider range of taxa. The Barred Owl's flexibility in their foraging strategy has probably allowed it to invade the western United States and contributed to its competitive advantage over Northern Spotted Ow
Baumbusch, R.C., K.M. Dugger, and J.D. Wiens. 2020. Diet Composition of Barred Owls (Strix varia) in the Pacific Northwest. 67th Annual Meeting of The Western Section of The Wildlife Society, February 3-7, 2020, Redding, CA.	February 2020	We analyzed the stomach contents of 1329 barred owls collected from 3 study areas in Washington and Oregon over 3 years and identified 4966 different prey items. We found that the broad diet of barred owls sampled varied considerably between the 3 study areas, with far more food items identified compared to diet studies that relied only on egested pellets. Preliminary results indicate that while small mammals still comprised a large portion of the diets in our collection localities, arthropods
Baumbusch, R.C., K.M. Dugger, and J.D. Wiens. 2020. Body Condition of Barred Owls (Strix varia) in the Pacific Northwest. 67th Annual Meeting of The Western Section of The Wildlife Society, February 3-7, 2020, Redding, CA.	February 2020	We investigated body condition and prey accumulation rates of barred owls from 3 study areas in Oregon and Washington over a 3-year period where birds were collected as part of a large-scale removal project. Preliminary results show a strong annual cycle in fat deposits (higher in winter relative to late summer), and variation relative to latitude (increasing from north to south), sex (females higher than males), and age (adults higher deposits than subadults).
Barajas, M. and J.T. Peterson. 2016. Modeling alternative conservation strategies for Klamath Basin sucker recovery. 52nd Annual Meeting of American Fisheries Society Oregon Chapter. March 1-4, Seaside, Oregon	March 2016	We used a quantitative decision modeling approach to explore potential outcomes of alternative conservation strategies that include captive propagation and catch grow and release. Uncertainty about the factors responsible for the apparent lack of recruitment was represented using alternative models of system dynamics.
Barajas, M. and J.T. Peterson. 2015. The development of a structured adaptive approach to Klamath Basin sucker recovery planning. 145th Annual Meeting of the American Fisheries Society, August 16-20, Portland OR.	August 2015	We developed a prototype decision model to evaluate the relative effectiveness of alternative conservation actions. Sensitivity analyses of the prototype model indicated that model estimates were highly sensitive to uncertainties regarding sucker population dynamics, particularly during early life stages. To address these uncertainties, we propose an adaptive approach to sucker recovery that integrates monitoring, research, and management.
Banet, N., D.D. Roby, T.J. Lawes, K.S. Bixler, D.E. Lyons, A.F. Evans, and K. Collis. 2013. Evaluating the success of newly restored Caspian Tern breeding habitat in Malheur National Wildlife Refuge, Oregon. 40th Annual Meeting of the Pacific Seabird Group, Portland, OR.	February 2013	This study documents the establishment of a new Caspian tern breeding colony on a recently constructed island in Malheur Lake, Malheur National Wildlife Refuge, Oregon.
Baltz, D.M., E.J. Chesney, H.W. Li, P.A. Rossignol, and T.S. Switzer. 2003. Ecological and societal values of estuarine habitats at Estuaries on the Edge, Convergence of Ocean, Land and Culture. ERF 17th Biennial Conference of the Estuarine Research Federation, Seattle WA.	January 2003
Ballard, G., D. Jongsomjit, S. Veloz, K. M. Dugger, P.O’B. Lyver, and D.G. Ainley. 2016. Are Adélie Penguin Foraging Volumes Determined by Breeding Population Size? 9th International Penguin Conference, Cape Town, South Africa, September 5-9, 2016.	September 2016	We put telemetry devices on breeding Adélie Penguins to collect foraging position and dive data during the breeding season on 3 adjacent colonies on Ross Island. We used these data to investigate patterns of habitat use by foraging penguins within and between colonies.
Ballard, G., A. Schmidt, A. Lescroel, S. Burcher, K.M. Dugger, and M. Cimino. 2024. Disparate dispersal behavior of fledgling Adélie penguins from three colonies. 11th SCAR Open Science Conference, 19-23 August 2024, Pucón, Chile.	August 2024	We deployed newly developed, transmitting GPS-TDR tags on Adélie penguin fledglings from 2 breeding colonies of different size on Ross Island in the Ross Sea (Royds: 2.4K pairs; Crozier: 250K pairs), and Humble Island (500 pairs) on the West Antarctic Peninsula. Tag attrition was higher for Royds and Humble Island fledglings over the first 30 days (70 - 75% lost) compared to Crozier fledglings (40% lost), suggesting higher early mortality rates of fledglings from the smaller colonies.
Bailey, O.A., Y. Suzuki, D.D. Roby, D.E. Lyons, P.J. Loschl, T.J. Lawes, and K.S. Bixler. 2015. Site fidelity and inter-colony movements of known-age Caspian Terns. Willamette Valley Bird Symposium, Corvallis, OR, 24 January. (Poster)	January 2015	This presentation investigates recruitment and natal philopatry of Caspian terns that were banded as fledglings at several breeding colonies in the Pacific Northwest.
Bailey, O.A., D.D. Roby, D.E. Lyons, Y. Suzuki, P.J. Loschl, and K.S. Bixler. 2017. Kid-friendly: Factors affecting breeding success of Caspian Terns on East Sand Island in the Columbia River estuary. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation investigates the factors that influence Caspian Tern nesting success at the largest colony for the species in North America. Previous breeding experience is a factor affecting nesting success, as is nest initiation date and distance to the edge of the colony.
Bailey, L., E.D. Forsman, J.R. Reid, R.G. Anthony and J.D. Nichols. Modeling Co-occurrence of Northern Spotted and Barred Owls: Accounting for Detection Probability Interactions. 125th Annual Meeting of the American Ornithologists Union, Portland OR.	August 2008
Antolos, M., D.E. Lyons, D.D. Roby, and K. Collis. 2003. Caspian tern predation on juvenile salmonids in the Mid-Columbia River. Annual meeting of the Pacific Seabird Group.	January 2003
Antolos, M., D.D. Roby, S.K. Anderson, and D.E. Lyons. Too close for comfort: The effects of nesting density on breeding success of Caspian terns in the Mid-Columbia River. Pacific Seabird Group Annual Meeting, 23 February, Santa Barbara, CA.	February 2002
Antolos, M., D.D. Roby, S.K. Anderson, D.E. Lyons, and K. Collis. February 2002. Density effects on breeding Caspian terns: How much space is enough? Oregon Chapter of The Wildlife Society Annual Meeting.	February 2002
Antolos, M., D.D. Roby, S.K. Anderson, D.E. Lyons, and K. Collis. Density effects on breeding Caspian terns: How much space is enough? Oregon Chapter of the Wildlife Society Annual Meeting, 14 February, Gleneden Beach, OR.	February 2002
Antolos, M., D.D. Roby, D.P. Craig, D.E. Lyons, K. Collis, and J.Y. Adkins. July 2000. Caspian terns and Columbia River salmon: A complex story perveived as a simple conflict. Coasts at the Millennium, 17th International Conference of The Coastal Society.	July 2000
Antolos, M., D.D. Roby, D.E. Lyons, K. Collis and D.P. Craig. February 2001. Caspian terns and juvenile salmonids in the mid-Columbia River: investigating impacts. Joint annual meeting of the Oregon chapters of American Fisheries Society and The Wildlife Society.	February 2001
Anthony, R.G., and C.J. Zabel. September 2000. Synthesis and conclusions: Mammal community dynamics in western coniferous forests. The Wildlife Society 7th Annual Conference.	September 2000
Anthony, R.G., M. Ricca and A.K. Miles. Productivity, diets and environmental contaminants in nesting bald eagles from the Aleutian Archipelago. 25th Annual Meeting of the Society of Environmental Toxicology and Chemistry, Portland OR.	November 2004
Anthony, R.G., M. Hansen, K. Swindle, and A. Ellingson. Demographic characteristics of northern spotted owls on lands managed by Oregon Department of Forestry. Oregon Chapter, The Wildlife Society, 15 February ,Gleneden Beach, OR.	February 2002
Anthony, R.G., K.M. Dugger, J.D. Wiens, and E.D. Forsman. 2012. Demographic Rates of Northern Spotted Owls: Implications for recovery planning for this threatened species. IVth International Wildlife Management Congress, Durban, South Africa, July 9-12, 2012.	July 2012	Before needed
Anthony, R.G., K. McGarigal, and R.J. Steidl. February 2000. Effects of human activities on nesting bald eagles. Symposium on the Impacts of Recreation on Wildlife Resources. Oregon Chapter of The Wildlife Society annual meeting.	February 2000
Anthony, R.G., J.G. Hallett, and M. Pollock. September 2000. Association of mammals with riparian ecosystems. The Wildlife Society 7th Annual Conference.	September 2000
Anthony, R.G., E.D. Forsman and A.B. Franklin. Trends in demography of northern spotted owls, 1987-2003. 12th Annual Conference of The Wildlife Society, Madison WI.	September 2005
Anthony, R.G., E.D. Forsman and 27 others. Status and trends in demography of northern spotted owls, 1987-2003. To Sustainable Ecosystem Institute and personnel from several state and federal agencies, Portland OR, 13 May 2004.	May 2004
Anthony, R.G., D.M. Gomez, and J.P. Hayes. Influence of thinning of Douglas-fir forests on demography and diets of northern flying squirrels. Workshop on Recent Research Advances on Northern Spotted Owls, Portland OR.	February 2007
Anthony, R.G., A.K. Miles, and M.A. Ricca. Evidence for transport of contaminants from Eurasia to the Aleutian Archipelago. Annual Conference of the Wildlife Society, Tucson, AZ.	September 2007
Anthony, R.G., A.K. Miles, M.A. Ricca and J.A. Estes. Productivity, diets and environmental contaminants in bald eagles from the Aleutian Islands AK. Third International Wildlife Management Congress, Christchurch NZ, 5 December 2003.	December 2003
Anthony, R.G. and L.W. Whitney. August 2001. Ecological relationships between Columbian white-tailed and black-tailed deer in southwest Oregon. Western State Deer & Elk Workshop.	August 2001
Anthony, R.G. and L.W. Whitney. 2003. Resource partitioning between deer species: The role of interspecific competition in their ecology and evolution. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Anthony, R.G. February 2001. Environmental contaminants in bald eagle populations in the Aleutian Archipelago, Alaska. 22nd annual Klamath Basin Bald Eagle Conference.	February 2001
Anthony, R.G. Effect of thinning of Douglas-fir forests on population parameters of northern flying squirrels. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Anthony, R. G., E. D. Forsman, K. M. Dugger, and E. M. Glenn. Demographic trends of northern spotted owls: A meta-analysis, 1985-2008. Annual Conference of The Wildlife Society, Monterey, CA. 23 September.	September 2009
Anthony, C.R., L. Foster, C. Hagen, and K.M. Dugger. 2017. Acute Demographic Response of Greater Sage-Grouse Following a Mega-Wildfire. The Western Section of The Wildlife Society, Reno, NV, February 6-10, 2017.	February 2017	We examined the acute demographic response of female sage-grouse following a large wildfire that burned 187,000 ha of sagebrush habitat in SE Oregon and NW Nevada during August 2012. Individuals exhibited high site fidelity, remaining within fire boundaries despite extreme changes to sagebrush communities. In addition, adult survival and daily nest survival rates were low relative to rates observed in habitats where fire was absent, suggesting site fidelity behavior might have consequences to
Anthony, C.R., C. Hagen, and K.M. Dugger. 2020. An evaluation of how greater sage-grouse respond to a megafire. Oregon Chapter of The Wildlife Society's Annual Meeting, February 4-7, 2020, Eugene, OR.	February 2020	This study provides estimates of population rates of change following a large-scale wildfire and the first examination of the proximate causes that influence greater sage-grouse population dynamics over a 6-year period immediately following the wildfire.
Anthony, C.R., C. Hagen, D. Elmore, and K.M. Dugger. 2019. Out of the sage and into the fire: Thermal niches explain sage-grouse nest success. 26th Annual Meeting of The Wildlife Society, Sept. 29 - Oct. 3, 2019, Reno, NV.	September 2019	We quantified the thermal environments available and used by nesting greater sage-grouse females in burned and unburned landscapes at three spatial scales (nest-bowl, 6-m around nest, and the surrounding landscape) in southeastern Oregon. Thermal variability was lower at unburned nest-bowls and microsites compared to both burned nest-bowls and burned microsites. In addition, nest-bowls moderated temperature more than microsites and the landscape by remaining warmer when ambient temperature wa
Anthony, C. R., C. Hagen, D. Elmore, and K. M. Dugger. 2018. Thermal Environments: a new approach to explain variation in Greater Sage-grouse (Centrocercus urophasianus) nest site selection and survival. Oregon Chapter of the Wildlife Society 2019 Annual Meeting, Feb. 27 - March 1, Bend, OR.	February 2019	Our objective was to describe the thermal environments at unburned and burned nest sites and quantify thermal differences among three spatial scales: nest-bowl, nest microsites (6-m around nest), and the surrounding landscape in the Trout Creek Mountains, Oregon, USA. We observed that sagebrush communities provide thermal refuge for sage-grouse during the breeding season and differences in thermal environments are associated with nest success.
Anthony, C. R., C. Hagen, D. Elmore, and K. M. Dugger. 2018. Thermal Environment of Greater Sage-grouse (Centrocercus urophasianus) Nest Sites Following Wildfire. Western Association of Fish and Wildlife Agencies Annual Conference, Eugene, OR, July 12-17, 2018.	July 2018	Our objective was to describe the thermal environments at unburned and burned nest sites and quantify thermal differences among three spatial scales: nest-bowl, nest microsites (6-m around nest), and the surrounding landscape in the Trout Creek Mountains, Oregon, USA. We observed that sagebrush communities provide thermal refuge for sage-grouse during the breeding season and differences in thermal environments are associated with nest success.
Anthony, C. R., C. Hagen, D. Elmore, and K. M. Dugger. 2018. Thermal Environment of Greater Sage-grouse (Centrocercus urophasianus) Nest Sites Following Wildfire. 14th International Grouse Symposium Logan, UT, Sept 24-28, 2018.	September 2018	Our objective was to describe the thermal environments at unburned and burned nest sites and quantify thermal differences among three spatial scales: nest-bowl, nest microsites (6-m around nest), and the surrounding landscape in the Trout Creek Mountains, Oregon, USA. We observed that sagebrush communities provide thermal refuge for sage-grouse during the breeding season and differences in thermal environments are associated with nest success.
Anthony, C. R., C. Hagen, D. Elmore, and K. M. Dugger. 2018. Influence of fire on the thermal environments of sagebrush (Artemisia spp.) communities. Society for Range Management Annual Meeting, 28 January - 2 February, 2018, Sparks, NV.	January 2018	Our objective was to provide a baseline of spatial and temporal thermal heterogeneity by measuring operative temperature within a sagebrush landscape affected by fire. Our results document high thermal variation among sagebrush communities and that fire alters thermal patterns across the landscape, which will likely influence the behavior of sagebrush obligate organisms, including sage-grouse.
Anderson, S.K., D.E. Lyons, and D.D. Roby. February 2001. Density-dependent foraging patterns of Caspian terns in the Columbia River estuary. Joint annual meeting of the Oregon Chapters of American Fisheries Society and The Wildlife Society.	February 2001
Anderson, S.K., D.D. Roby, and K. Collis. Prey type and tide stage affect prey delivery rates of Caspian terns. Pacific Seabird Group Annual Meeting, 21 February, Santa Barbara, CA.	February 2002
Anderson, S.K., D.D. Roby, and K. Collis. Factors affecting prey capture rates by Caspian terns. Oregon Chapter of the Wildlife Society Annual Meeting, 13 February, Gleneden Beach, OR.	February 2002
Anderson, S.K., D.D. Roby, D.E. Lyons, and K. Collis. August 2001. Foraging patterns of Caspian terns in relation to colony size and marine influence. 119th Stated Meeting of the American Ornithologists' Union.	August 2001
Anderson, S.K., D.D. Roby, D.E. Lyons, and K. Collis. Anchovy for dinner again? Importance of marine forage fishes to the nesting success of Caspian terns in the Columbia River estuary. Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 23 January 2004.	January 2004
Anderson, C.D., D.D. Roby and D.E. Lyons. February 2001. Potential nondestructive methods to reduce double-crested cormorant predation on juvenile salmonids in the Columbia River estuary. Joint annual meeting of the Oregon Chapters of American Fisheries Society and The Wildlife Society.	February 2001
Anderson, C.D. and D.D. Roby. Gender differences in foraging behaviour of double-crested cormorants nesting in the Columbia River Estuary. Oregon Chapter of the Wildlife Society Annual Meeting, 14 February, Gleneden Beach, OR.	February 2002
Anderson, C.D. and D.D. Roby. 2003. Double-crested cormorant nesting ecology on the Columbia River estuary. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Alonso, M., E. Thomann, I. Misumi, T. Vella, C.B. Schreck, and J.C. Leong. 2002. Fish mx gene as a biomarker of contamination and infections. Oregon Chapter of the American Fisheries Society, Sunriver OR.	February 2002
Alford, K., D. Tullos, and J.T. Peterson, 2024. An Evaluation of the Mechanisms Driving Dissolved Oxygen Downstream of the Klamath Dam Removal. . 154th Annual Meeting of the American Fisheries Society. 15-19 September 2024. Honolulu, Hawai'i. (Contributed Oral)	September 2024	The primary objective of this study was to measure sediment-derived oxygen demand during and after the reservoir drawdown to document in-river patterns in dissolved oxygen across drawdown phases and subsequent storm events.
Airborne Contaminants and Endocrine Disruption in Pristine US National Parks and Effects of Stress on Vitellogenin. International Congress on the Biology of Fish, Portland OR.	July 2008
Adrean, L.J., M. Pickett, B.Taggart, S.K. Nelson, D.D. Roby, and M.G. Betts. 2017. Testing whether unmanned aircraft systems can be used to locate cryptic nests of the Marbled Murrelet. 44th Annual Meeting of the Pacific Seabird Group, Tacoma, Washington.	February 2017	This presentation demonstrates the potential feasibility and value of using UASs and infra-red technology to locate active nests of Marbled Murrelets in dense, late successional forests.
Adrean, L.J., D.D. Roby, D.E. Lyons, K. Collis, and A.F. Evans. Caspian Tern (Hydroprogne caspia) foraging ecology and predation on juvenile salmonidsin San Francisco Bay, California. 39th Annual Meeting of the Pacific Seabird Group, Oahu, HI, 9 February.	February 2012
Adrean, L., S.K. Nelson, C. Horton, D.D. Roby, M.G. Betts, and J. Rivers. 2018. Radio-tagging reveals unprecedented breeding season movements of Marbled Murrelets. 45th Annual Meeting of the Pacific Seabird Group, La Paz, Baja California Sur, Mexico, 21-24 February.	February 2018	This presentation uses Marbled Murrelets radio-tagged at sea off the Oregon coast to track dispersal to the north (Washington) and south (California), apparently in response to poor ocean conditions in their breeding range.
Adrean, L., D.D. Roby, K. Collis, D.E. Lyons, S.K. Nelson, and D. Battaglia. Foraging ecology and diet composition of Caspian terns in San Francisco Bay. 7th Annual Symposium on Research Advances in Fisheries, Wildlife and Ecology, Corvallis OR.	February 2010
Adrean, L., D.D. Roby, K. Collis, D.E. Lyons, S.K. Nelson, and D. Battaglia. Foraging ecology and diet composition of Caspian terns in San Francisco Bay. 37th Annual Meeting of the Pacific Seabird Group, Long Beach CA.	February 2010
Adrean, L., D.D. Roby, K. Collis, A. Evans, D.E. Lyons, D. Battaglia, and S.K. Nelson. Sitting on a dock of the bay, waiting for fish to swim my way: Foraging ecology and diet composition of Caspian Terns in San Francisco Bay, California. 1st World Seabird Conference, Victoria, B.C., Canada.	September 2010
Adrean*, L., D.D. Roby, K. Collis, D.E. Lyons, S.K. Nelson, and D.S. Battaglia. 2009. Foraging ecology and diet composition of Caspian terns in San Francisco Bay. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 13 February.	February 2009
Adrean*, L., D.D. Roby, K. Collis, D.E. Lyons, S.K. Nelson, and D. Battaglia. 2008. Foraging ecology and diet composition of Caspian terns in San Francisco Bay. 6th Annual Symposium on Research Advances in Fisheries, Wildlife, and Ecology, Corvallis OR, 11 November.	February 2008
Adkins, J.Y., D.D. Roby, and K. Bixler. Trends in numbers and distribution of breeding Glaucous-winged/Western gulls in the Columbia River estuary and Puget Sound area. Joint Annual Conference of the Oregon and Washington Chapters, The Wildlife Society, Pendleton OR.	April 2007
Adkins, J.Y., D.D. Roby, and K. Bixler. Trends in numbers and distribution of breeding Glaucous-winged Gulls (Larus glaucescens) and hybrid gulls (L. glaucescens X L. occidentalis) in the Columbia River estuary and Puget Sound area. 34th Annual Meeting of the Pacific Seabird Group, Asilomar CA.	February 2007
Adkins, J.Y., D.D. Roby, K.N. Fischer, D.E. Lyons, T. Marcella, Y. Suzuki, P. Loschl, D. Battaglia, D. Mercer, and S.M. Haig. Assessing Pacific coast double-crested cormorants: implications of recent surveys, molecular genetics analyses, and satellite tracking results. Annual Meeting of the Waterbirds Society, Cape May NJ.	November 2009
Adkins, J.Y., D.D. Roby, K. Collis, A. Evans, L.H. Reinalda, and D.E. Lyons. 2008. Double-crested Cormorants on the Columbia Plateau: A New Focus for Management. Annual meeting of the Oregon Chapter, The Wildlife Society, Gleneden Beach OR.	February 2008
Adkins, J.Y., D.D. Roby, K. Collis, A. Evans, L.H. Reinalda, and D.E. Lyons. 2008. Double-crested Cormorants on the Columbia Plateau: A New Focus for Management. 35th Annual Meeting of the Pacific Seabird Group, Blaine WA.	February 2008
Adkins, J.Y., D.D. Roby, D.M. Mercer, Y. Suzuki, L.H. Reinalda, D.E. Lyons and K. Collis. A Growing Focus on Double-crested Cormorants by Fisheries Managers in the Columbia Basin Compels a Current Status Assessment for the Pacific Coast Subspecies. 125th Annual Meeting of the American Ornithologists Union, Portland OR.	August 2008
Adkins, J.Y., D.D. Roby, D.E. Lyons, K.N. Fischer, T. Marcella, Y. Suzuki, P. Loschl, and D. Battaglia. Recent population trends in the western double-crested cormorants: results from an updated status assessment. 37th Annual Meeting of the Pacific Seabird Group, Long Beach CA.	February 2010
Adkins, J.Y., D.D. Roby, D.E. Lyons, K.N. Courtot, and K. Collis. Too many or not enough? Recent population trends of Double-crested Cormorants in the western U.S. and Canada. 1st World Seabird Conference, Victoria, B.C., Canada. POSTER	September 2010
Adkins, J.Y., D. D. Roby, D.E. Lyons, A.M. Myers, C. Couch, K.N. Fischer, and K. Collis. One fish, two fish, red fish, blue fish: do caspian terns eat the same fish they deliver to the colony? Joint Annual Meeting of the Pacific Seabird Group and the Waterbird Society, Portland OR.	January 2005
Adkins*, J.Y., D.D. Roby, K.N. Fischer, L.H. Reinalda, D.E. Lyons, D. Mercer, and Y. Suzuki. 2008. Post-breeding distribution of Double-crested Cormorants from the Columbia River estuary: Satellite telemetry contributes information to a current Pacific Coast status assessment. Annual Meeting of The Waterbird Society, South Padre Island TX, 6 November.	November 2008
Adkins*, J.Y., D.D. Roby, K.N. Fischer, D.E. Lyons, L.H. Reinalda, and Y. Suzuki. 2009. Toward an updated status assessment for Pacific Coast double-crested cormorants: Implications of recent molecular genetics and satellite-tracking studies. Annual Conference of the Oregon Chapter of The Wildlife Society, Gleneden Beach OR, 13 February.	February 2009
Adkins*, J.Y., D.D. Roby, K.N. Fischer, D. Mercer, D.E. Lyons, L.H. Reinalda, and Y. Suzuki. 2009. Toward an updated status assessment for Pacific Coast Double-crested Cormorants: Implications of recent molecular genetics and satellite-tracking studies. 36th Annual Meeting of the Pacific Seabird Group, Hakodate Japan, 24 February.	February 2009
Ackers, S.H., R.J. Davis, and K.M. Dugger. 2014. EVALUATION OF NORTHERN SPOTTED OWL (STRIX OCCIDENTALIS CAURINA) HABITAT MODELS USING LIDAR-BASED VEGETATION MEASUREMENTS AND LANDSAT-IMPUTED FOREST STAND CHARACTERISTICS. Oregon TWS Annual Meeting, February 5-7, 2014, Bend OR.	February 2014	This study illustrates the efficacy of new remote-sensing technology (LiDAR) to characterize northern spotted owl habitat. We observed a higher predictive accuracy for species distribution models of spotted owls using LiDAR data compared to models developed using conventional Landsat-based data.
Ackers, S.H., R.G. Anthony, R.M. Claremont, E.D. Forsman, D.H. Giessler, J.W. LaVoie, N.S. Seaman, J.W. Schilling, and S.I. Turner. 2003. Demography of northern spotted owls in the central Oregon Cascades. Joint annual meeting of the Northwest Section and the Oregon Chapter of The Wildlife Society.	September 2003
Ackers, S. H., R. G. Anthony, and E. D. Forsman. Long-term population monitoring of northern spotted owls: Implications for the effectiveness of current reserve designs. Annual Conference of The Wildlife Society, Monterey, CA, 23 September.	September 2009

Theses and Dissertations

Theses and Dissertations	Publication Date
Wright, S.K. 2005. Disturbance and roosting ecology of California brown pelicans (Pelecanus occidentalis californicus) on East Sand Island in the Columbia River estuary. M.S. thesis, Oregon State University, Corvallis, OR. 106 pp.	June 2005
Whitlock, S.L. 2019. Towards an Integrated Decision Tool for Managing Visitor Restrictions in Glacier Bay National Park. PhD Dissertation, Oregon State University.	November 2019
Waldo, J. 2024. Making a Sea Change: Motivating Climate Action in Response to Ocean Change. Thesis. Oregon State University, Corvallis, Oregon, USA.	June 2024
Van Seeters, E. 2022. Are Broodstock Recovery Programs Working? An analysis of the Conservation Propagation Coho salmon Program of the Russian River Watershed. PFMC, Oregon State University.	June 2022
Suzuki, Y. 2012. Piscivorous colonial waterbirds in the Columbia River estuary: Demography, dietary contaminants, and management. Ph.D. dissertation, Oregon State University, Corvallis, OR. 204 pp.	January 2012
Spencer, M. 2000. Behavioral and physiological indicators of stress in sablefish, ANOPLOPOMA FIMBRIA. M.S. Thesis, Oregon State University, Corvallis OR.	October 2000
Somers, Lindsay N. 2023. Ringtail (Bassariscus astutus) Survival, Home Range Size, and Rest Site Use in Southwest Oregon. M.S. Thesis, Oregon State University, Corvallis, OR, 92pp.	September 2023
Smith, April G. 2012. Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus). April 7. M.S. Thesis, Oregon State University.	April 2011
Sink, Chelsea E. 2023. Greater Sage-Grouse (Centrocercus urophasianus) Demographic Rates and Predator Communities in a Degraded Landscape in Modoc County, California. MS Thesis, Oregon State University. Corvallis, OR, 71pp.	January 2023
Sheffield, L.M. 2005. Using auklets to monitor the effects of global warming on the Bering Sea Ecosystem: Detecting change in auklet food supply, productivity, and populations. M.S. thesis, Oregon State University, Corvallis, OR. 107 pp.	December 2005
Schniedermeyer, E. 2018. The response of Caspian Terns to managed reductions in nesting habitat in the Columbia Plateau region, Washington State, USA. M.S. thesis, Oregon State University, Corvallis, Oregon. 87 pp.	June 2018
Schilling, J. 2009. Movements and Habitat Associations of Northern Spotted Owls in the Ashland Watershed. M.S. Thesis, Oregon State University, Corvallis OR.	June 2009
Saenz, J. 2014. Patch dynamics of desert fishes in the arid wetlands of western Utah, MS Thesis, Oregon State University, Corvallis.	April 2014
Romer, Jeremy D. 2010. Survival and behavior of juvenile steelhead trout (Oncorhynchus mykiss) in two small estuaries in Oregon. M.S. thesis. Oregon State University. 66pp.	June 2010
Ramsay, Jennifer M. 2008. Husbandry stress of zebrafish, Danio rerio. Ph.D. Thesis, Oregon State University. 162 pp.	October 2008
Ralph Tatsuo Lampman. 2011. Passage, Migration Behavior, and Autoecology of Adult Pacific Lamprey at Winchester Dam and within the North Umpqua River Basin, Oregon, USA. Nov. 22. M.S. Thesis, Oregon State University	November 2011
Provins, S. 2018. Temperature and Discharge Dependent Mortality of Juvenile Spring-Run Chinook Salmon in Clear Creek. PFMC, Oregon State University.	June 2018
Price, C.S. 2002. Factors affecting the saltwater-entry behavior and saltwater preference of juvenile chinook salmon, Oncorhynchus tshawytscha. Ph.D. Thesis, Oregon State University, Corvallis. 189pp.	June 2002
Pribyl, Alena L. 2010. A macroscopic to microscopic study of the effects of barotrauma and the potential for long-term survival in Pacific rockfish. Ph. D. dissertation. Oregon State University. 169pp.	June 2010
Pollock, A.M. 2019. Comparing Migratory Patterns and Survival Between Wild and Wild Fish Surrogate Juvenile Spring Chinook Salmon (Oncorhynchus tshawytscha). Master of Science Thesis, Oregon State University.	August 2019
Petersen, T. 2022. Evaluation of juvenile hatchery coho salmon (Oncorhynchus kisutch) planted as fry in the Tsoo-Yess (C’u●yas) River Watershed, Washington State. PFMC. Oregon State University, Corvallis.	December 2022
Peck-Richardson, A. 2017. Double-crested cormorants (Phalacrocorax auritus) and Brandt’s cormorants (P. penicillatus) breeding at East Sand Island in the Columbia River estuary: foraging ecology, colony connectivity, and overwinter dispersal. M.S. thesis, Oregon State University, Corvallis, Oregon. 118 pp.	April 2017
Patterson, A. 2012. Breeding and Foraging Ecology of Caspian Terns Nesting on Artificial Islands in the Upper Klamath Basin, California. M.S. thesis, Oregon State University, Corvallis, OR. 147 pp.	December 2012
Orning, Elizabeth K. 2019. Carnivore competition: spatial and dietary implications of gray wolf recolonization for cougars in northeast Oregon. Ph.D. Dissertation, Oregon State University, Corvallis, Oregon. 242 pp.	June 2019
Neal, W.T. 2020. Evaluating the Effects of a Parasitic Copepod (Salmincola californiensis) on the Performance of Juvenile Chinook Salmon (Oncorhynchus tshawytscha). MS Thesis , Oregon State University, Corvallis.	September 2020
Myers, A.M. 2007. Evaluating the fatty acid signature technique for studies of diet composition in piscivorous waterbirds. M.S. thesis, Oregon State University, Corvallis, OR. 107 pp.	June 2007
Mulligan, E. M. 2015. Survival rates and cause-specific mortality for mule deer in South-Central Oregon. M.S. thesis, Oregon State University, Corvallis, OR. 87pp.	December 2015
Mikkelsen, Ashlee J. 2021. Making the Connection: Linking Stress Physiology of Juvenile Northern Spotted Owls to Environmental Variation and Long-term Survival. M.S. Thesis, Oregon State University, Corvallis, OR, 122pp.	February 2021
McDonnell, K.N. 2019. The Influence of Scale in a Structured Decision Making Framework for Chinook Salmon Management. PhD Dissertation, Oregon State University.	June 2019
Marks-Fife, C. 2016. Estimation of population age structure, detection probability, and density of red tree voles in Oregon. M.S. thesis, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR. 129 pp.	June 2016
Marcella, T.K. 2014. Cruise Ship Disturbance to Kittlitz’s Murrelets (Brachyramphus brevirostris) in Glacier Bay National Park and Preserve, Alaska. M.S. thesis, Oregon State University, Corvallis, OR. 134 pp.	June 2014
Mangan, Anna O. 2018. Effects of habitat characteristics, weather and presence of Barred Owls (Strix varia) on occupancy dynamics and breeding propensity of Northern Spotted Owls (S. occidentalis caurina) in Mount Rainier National Park. M.S. Thesis, Oregon State University, Corvallis, Oregon. 79 pp.	June 2018
Lyons, D.E. 2010. Bioenergetics-based predator-prey relationships between piscivorous birds and juvenile salmonids in the Columbia River estuary. Ph.D. Dissertation, Oregon State University, Corvallis OR. 310 pp.	June 2010
Lyons, D.E. 2004. Foraging ecology of Caspian terns and double-crested cormorants in the Columbia River estuary. M.S. thesis, Oregon State University, Corvallis, OR. 90 pp.	June 2004
Loomis, David M. 2013. Reproductive success and foraging ecology of the Rusty Blackbird on the Copper River Delta, Alaska. M.S. Thesis, Oregon State University, Corvallis, OR 86pp.	May 2013
Lawonn, M.J. 2012. Breeding Ecology and Nest Site Selection of Kittlitz’s Murrelets on Kodiak Island, Alaska. M.S. thesis, Oregon State University, Corvallis, OR. 153 pp.	December 2012
Lawes, T.J. Homing and Habitat Selection of Experimentally Translocated Pygmy Rabbits in Southeastern Oregon. M.S. Thesis, Oregon State University, Corvallis OR.	October 2009
Kurnianto, S. 2017. The Eco-hydrology Associated with the Land Cover Changes in Tropical Peatlands. PhD Dissertation, Oregon State University, Corvallis.	September 2017
Knoebl, I. 2002. The use of molecular biological methods to assess the effects of endocrine disrupting chemicals and natural hormones on growth in the sheepshead minnow (Cyprinodon variegatus). Ph.D. Thesis, Oregon State University, Corvallis. Approx 200 pp.	June 2002
Kirsch, J.E. 2011. A MULTI-SCALED APPROACH TO EVALUATING THE FISH COMMUNITY STRUCTURE WITHIN SOUTHERN APPALACHIAN STREAMS MS Thesis, University of Georgia, Athens.	December 2011
Kennedy, K. 2024. Sticks and stones vs. sensors: comparing methods of quantifying juvenile salmonid habitat across spatial scales. Thesis. Oregon State University, Corvallis, Oregon, USA.	June 2024
Kappes, Peter J. 2019. The influence of alternate life history strategies and natal conditions on the reproductive performance of Adélie penguins breeding on Ross Island, Antarctica. Ph.D. Dissertation, Oregon State University, Corvallis, Oregon. 171 pp	March 2019
Jensen, A.J. 2021. Value of Prior and Novel Information in Managing a Mixed-Stock Recreational Chinook Salmon Fishery. PhD Dissertation, Oregon State University.	June 2021
Jennings, S. 2015. Provisioning, growth and survival of Adelie penguin chicks at Cape Crozier, Ross Island, Antarctica. M.S. thesis, Oregon State University, Corvallis, OR, 116pp.	March 2015
Hostetter, N.J. 2010. Susceptibility of juvenile salmonids to avian predation: Are Caspian terns and double-crested cormorants only taking the sick and injured? M.S. Thesis, Oregon State University, Corvallis OR. 123 pp.	December 2009
Horton, Cheryl A. 2014. Top-down influences of Bald Eagles on Common Murre populations in Oregon. M.S. Thesis, Oregon State University, Corvallis OR 124pp.	June 2014
Hatch, N.R. 2012. Foraging ecology and reproductive energetics of the Kittlitz’s Murrelet (Brachyramphus brevirostris) in Southeast Alaska. M.S. thesis, Oregon State University, Corvallis, OR. 148 pp.	December 2011
Groot, K. A. 2015. Historic survival rates and cause-specific mortality for Columbian Black-tailed deer in Southwest Oregon. M.S. Thesis, Oregon State University, 93pp.	June 2015
Glenn, E. M. 2009. Effects of Climate on Demographic Performance of Northern Spotted Owls in the Pacific Northwest. Ph.D. thesis, Oregon State University, Corvallis OR, USA.	June 2009
Gardner, E. 2022. An Evaluation of the Effects of the Parasite Salmincola californiensis on At-Risk Chinook Salmon Populations. MS Thesis, Oregon State University, Corvallis.	September 2022
Gall, A.E. 2004. Planktivorous auklets (Aethia pusilla and A. cristatella) nesting on St. Lawrence Island, Alaska as indicators of marine conditions in the northern Bering Sea. M.S. thesis, Oregon State University, Corvallis, OR. 132 pp.	June 2004
Foster, L. 2016. Resource selection, and demographic rates of female Greater Sage-Grouse following large-scale wildfire. M.S. thesis, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR. 181 pp.	June 2016
Fischer, K.N. 2008. Marine habitat use of Black-footed and Laysan albatrosses during the post-breeding season and their spatial and temporal overlap with commercial fisheries. M.S. thesis, Oregon State University, Corvallis, OR. 111 pp.	June 2008
Dycus, J.C. 2011. DEMOGRAPHY OF FRESHWATER MUSSELS WITHIN THE LOWER FLINT RIVER BASIN, SOUTHWEST GEORGIA. MS Thesis, University of Georgia, Athens.	December 2011
Duchac, Leila S. 2019. Passive acoustic monitoring of owls: two studies in forested landscapes of the Pacific Northwest. M.S. Thesis, Oregon State University, Corvallis, Oregon. 171 pp.	August 2019
Dixon, J.L. 2019. An Evaluation of Longline Gear and Occupancy Models as Methods for Detecting Habitat Associations for Reef Fish in Oregon’s Redfish Rocks, Marine Reserve. MNR, Oregon State University	May 2019
Dickey, J. 2024. Lamprey of the Goose Lake Basin: a multi-scale habitat and distribution analysis. Thesis. Oregon State University, Corvallis, Oregon, USA.	March 2024
Dew, A. 2024. Diving into diversity: fish populations and climate resilience in an endorheic basin. Thesis. Oregon State University, Corvallis, Oregon, USA.	March 2024
Cushing, D.A. 2014. Patterns of Distribution, Abundance, and Change over Time in the Marine Bird Community of Prince William Sound, Alaska, 1989-2012. M.S. thesis, Oregon State University, Corvallis, OR. 128 pp.	June 2014
Collar, S. 2013. Site fidelity and colony dynamics of Caspian terns nesting at East Sand Island, Columbia River estuary, Oregon, USA. M.S. in Wildlife Science, Oregon State University, Corvallis, OR. 125 pp.	December 2013
Clements, S. 2001. Central Control of locomotory activity in juvenile salmonids: The role of corticotropin releasing hormone in the brain. Ph.D. Thesis, Oregon State University, Corvallis. 161pp.	October 2001
Clemens, B. 2011. The Physiological Ecology & Run Diversity of Adult Pacific Lamprey During Their Freshwater Spawning Migration. Ph.D. Dissertation. Oregon State University, Corvallis, Oregon.	August 2011
Clark, Jessica S. 2022. Life History Trade-offs: The Effects of Habitat Selection on Columbian Black-tailed Deer Survival in Oregon. MS Thesis. Oregon State University, Corvallis, OR, 133pp.	March 2022
Chelberg, J. 2023. The Response of Spawning Winter-Run Chinook Salmon (Oncorhynchus tshawystcha) to Habitat Suitability and Conditions in the Sacramento River. PFMC. Oregon State University, Corvallis.	December 2023
Carey, K. 2022. Prespawning Mortality of Fall Creek Willamette Chinook Salmon (Oncorhynchus tshawytscha): Evaluation of the Effects of a New Trap at the Adult Fish Collection Facility. MS Thesis. Oregon State University, Corvallis.	December 2022
Brignon, Bill. 2009. Eagle Creek ecological interactions: Residual hatchery steelhead and wild salmonids. M.S., Thesis. Oregon State University. 89 pp.	January 2009
Bixler, K.S. 2011. Why Aren’t Pigeon Guillemots in Prince William Sound, Alaska Recovering from the Exxon Valdez Oil Spill? M.S. thesis, Oregon State University, Corvallis, OR. 161p	July 2011
Benda, S.E. 2014. Cool, pathogen free refuge lowers pathogen associated prespawn mortality of Willamette River Chinook salmon (Oncorhynchus tshawytscha) . Masters Thesis, Oregon State University, Corvallis.	July 2014
Baumbusch, Ryan C. 2023. Foraging ecology of barred owls where they are outcompeting the threatened Northern spotted owl. Ph.D. Dissertation, Oregon State University, Corvallis, OR, 149pp.	March 2023
Barajas, M.F. 2017. evelopment of a Structured Adaptive Approach to Klamath Basin Sucker Recovery Planning. MS Thesis Oregon State University, Corvallis.	March 2017
Bailey, O.A. 2018. Extrinsic and intrinsic factors associated with reproductive success of Caspian Terns (Hydroprogne caspia) at East Sand Island, Columbia River estuary. M.S. thesis, Oregon State University, Corvallis, Oregon. 142 pp.	September 2018
Antolos, M. 2003. Breeding and foraging ecology of Caspian terns (Sterna caspia) in the mid-Columbia River: Predation on juvenile salmonids and management implications. M.S. thesis, Oregon State University, Corvallis, OR. 152 pp.	June 2003
Anthony, Christopher R. 2020. Thermal ecology and population dynamics of female greater sage-grouse following wildfire in the Trout Creek Mountains of Oregon and Nevada. Ph.D. Dissertation, Oregon State University, Corvallis, Oregon. 156 pp.	March 2020
Anderson, S.K. 2003. Foraging ecology, colony attendance, and chick provisioning of Caspian terns (Sterna caspia) in the Columbia River estuary. M.S. thesis, Oregon State University, Corvallis, OR. 101 pp.	December 2003
Anderson, C.D. 2003. Factors affecting colony size, reproductive success, and foraging patterns of double-crested cormorants nesting on East Sand Island in the Columbia River estuary. M.S. thesis, Oregon State University, Corvallis, OR. 128 pp.	June 2003
Adrean, L.J. 2011. Caspian tern (Hydroprogne caspia) foraging ecology and predation on juvenile salmonids in San Francisco Bay, California. M.S. Thesis, Oregon State University, Corvallis, OR. 139 p.	September 2011

Technical Publications

Technical Publications	Publication Date
Wyss, L.A., Clemens, B.J., and Schreck, C.B. Abundance and Habitat Use of Larval Lamprey in Five Willamette River Tributaries. US Army Corps of Engineers, Annual Willamette River Science Review, Corvallis, OR Jan 30- Feb 1, 2012.	January 2012
Wiens, JD, KM Dugger, KE Lewicki, and DC Simon. 2016. Effects of experimental removal of barred owls on population demography of northern spotted owls in Washington and Oregon - 2015 Progress Report. U.S. Geological Survey Open-File Report 2016-1041, 16 p., http://dx.doi.org/10.3133/ofr20161041. [IP-072911, approved 3/11/2016]	March 2016
Wiens, J.D., K.M. Dugger, K.E. Lewicki, and D.C. Simon. 2017. Effects of experimental removal of Barred Owls on population demography of northern Spotted Owls in Washington and Oregon—2016 progress report: U.S. Geological Survey Open-File Report 2017-1040, 23 pp. https://doi.org/10.3133/ofr20171040	June 2017
Wiens, J.D., K.M. Dugger, D.B. Lesmeister, K.E. Dilione, and D.C. Simon. 2018. Effects of experimental removal of Barred Owls on population demography of Northern Spotted Owls in Washington and Oregon—2017 progress report: U.S. Geological Survey Open-File Report 2018–1086, 23 pp. https://doi.org/10.3133/ofr20181086.	June 2018
Webb, M., G. Feist, M. S. Fitzpatrick, and C. B. Schreck. 2000. Early identification of sex in white sturgeon. USDA Annual Report. 2pp.	January 2000
Unrein, J.R., Chitwood, R., Noakes, D.L.G., and Schreck, C.B. Born to Behave Wild? Utilizing Data on Growth, Development and Behavior of Wild Spring Chinook to Develop Rearing Strategies to Produce Artificially Reared Fish with a Wild Phenotype. Oregon American Fisheries Society Annual Meeting, Eugene Oregon, Feb 29-March 1.	February 2012
Trites, A.W., B. Battaile, K. Benoit-Bird, L. Cooper, J. Grebmeier, A. Harding, S. Heppell, D. Irons, C. Jay, S. Kitaysky, K. Kuletz, R. Paredes, H. Renner, and D. Roby. 2013. Patch dynamics study, NPRB BSIERP Projects B67 & B77, Final 16 Report to the North Pacific Research Board, Anchorage, AK.	February 2013
T.S. Momoda, K. J. Rodnick, and C.B. Schreck. Affairs of the Heart: Effects of Stress on Cardiac Physiology in Rainbow Trout. Oregon American Fisheries Society Annual Meeting, Eugene Oregon, Feb 29-March 1.	February 2012
Suzuki, Y., J. Heinrichs, D.E. Lyons, D.D. Roby, and N. Schumaker. 2018. Modeling the Pacific Flyway population of Caspian Terns to investigate current population dynamics and evaluate future management options; Phase 3: Model Results. Bonneville Power Administration and Northwest Power and Conservation Council, Portland, Oregon. 106 pp.	July 2018
Suryan, R.M., D.B. Irons, P.G.R. Jodice, D.D. Roby, and E.D. Brown. 2002. Bottom-up, top-down, and mismatch controls of reproduction in a colonial seabird: colony specific effects on seabird-forage fish relationships. Exxon Valdez Oil Spill Restoration Project Draft Final Report. (Restoration Project 01163E). US Fish & Wildlife Service, Anchorage, AK.	January 2002
Steen, V.A., J.T. Peterson, A. Duarte. 2023. Integrated modeling for insights into spatially dynamic abundance patterns for a rare fish species. Annual report to the Metropolitan Water District of Southern California.	March 2023
Stahl, T. P., C. B. Schreck and D. D. Roby. 1999. Avian predation in Oregon estuaries and juvenile salmonid migration. Completion Report to Oregon Dept. Fish & Wildlife. 78pp.	January 2000
Schreck, C.B., M.D. Karnowski and B.J. Clemens. 2005 Evaluation of post-release losses and barging strategies that minimize post-release mortality. Final report to the U.S. Army Corps of Engineers. DACW68-00-C-0028. 191p.	January 2005
Schreck, C.B., D.D. Roby, S. Clements, and M. Karnowski. 2001. Juvenile salmonid survival in specific areas of the Nehalem watershed. Annual Report. Oregon Department of Fish and Wildlife. 63pp.	October 2001
Schreck, C.B., D. Jepsen, M. Karnowski, and S. Clements. 2001. Evaluation of migration and survival of juvenile salmonids following transportation. Annual Report, Walla Walla District, U.S. Army Corps of Engineers. Approx 68pp.	October 2001
Schreck, C.B, and S. Clements. 2001. Evaluation of delayed mortality of juvenile salmonids in the near ocean environment following passage through the Columbia River hydropower system. Annual Report, Walla Walla District, U.S. Army Corps of Engineers. Approx. 50pp.	October 2001
Schreck, C. B., M. S. Fitzpatrick, and D. T. Lerner. 1999. Determination of passage of juvenile lamprey: Development of tagging protocol. Annual Report, U.S. Army Corps of Engineers BPS-P-00-15b. 38pp.	January 2000
Scheerer, P.D., S. Clements, R. Jacobsen, and J.T. Peterson. 2012. Warner Sucker Investigations (Honey Creek). ANNUAL PROGRESS REPORT, FISH RESEARCH PROJECT OREGON. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	June 2012
Scheerer, P.D., J.T. Peterson, and S. Clements. 2017. 2016 Warner Sucker Investigations (Lower Twentymile Creek). Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2017
Scheerer, P.D., J.T. Peterson, and S. Clements. 2017. 2016 Foskett Spring Speckled Dace Investigations. Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2017
Scheerer, P.D., J.T. Peterson, and S. Clements. 2017. 2016 Borax Lake Chub investigations. Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2017
Scheerer, P.D., J.T. Peterson, and S. Clements. 2016. 2016 Foskett Spring Speckled Dace Investigations. Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2016
Scheerer, P.D., J.T. Peterson, and S. Clements. 2016. 2015 Warner Sucker Investigations (Lower Twentymile Creek). Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2016
Scheerer, P.D., J.T. Peterson, and S. Clements. 2015. 2014 Warner Sucker Investigations (Lower Twentymile Creek). Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2015
Scheerer, P.D., J.T. Peterson, and S. Clements. 2015. 2014 Foskett Spring Speckled Dace Investigations. Annual Progress Report, Fish Research Project Oregon. Oregon Department of Fisheries and Wildlife, Corvallis, Oregon.	January 2015
Scheerer, P.D., J. Peterson, and M.H. Meeuwig. 2017. Review and Synthesis of Information and Data Available for Umpqua Chub (1987 – 2016). Oregon Department of Fish and Wildlife Fish Research Project Report, Corvallis. 68 pp	November 2017
Scheerer, P. D., J. T. Peterson, and M. H. Meeuwig. 2017. Distribution and Abundance of Pit Sculpin in Drews and Camp Creeks, Goose Lake Basin, Oregon. Oregon Department of Fish and Wildlife, Annual Progress Report, Corvallis. 19 p.	January 2017
Romito, A., J.T. Peterson, and M.J. Conroy. 2014. Structured Decision Making for Brown Bears on National Park Service Lands in Alaska - Integration of Monitoring to Inform Management. Final Report to the U.S. Geological Survey. Warnell School of Forestry and Natural Resources, University of Georgia, Athens.	September 2014
Romito, A., J.T. Peterson, and M.J. Conroy. 2012. Structured Decision Making for Brown Bears on National Park Service Lands in Alaska - Integration of Monitoring to Inform Management. Annual Report to the U.S. Geological Survey. Warnell School of Forestry and Natural Resources, University of Georgia, Athens.	December 2012
Roby, D.D., S.M. Murphy, R.J. Ritchie, M.D. Smith, A.G. Palmer, D.L. Nordmeyer-Elmore, E. Pruitt, and R.C. Kull, Jr. 2002. The effects of noise on birds of prey: A study of peregrine falcons (Falco peregrinus) in Alaska. AFRL-HE-WP-TR-2002-0190, U.S. Air Force Research Laboratory, Wright-Patterson AFB, Ohio. 252 pp. Published	October 2002
Roby, D.D., P.G.R. Jodice and K.R. Turco. 2000. Diet Composition, Reproductive Energetics, and Productivity of Seabirds Damaged by the EXXON VALDEZ Oil Spill. Restoration Project Final Report to EXXON VALDEZ Oil Spill Trustee Council.	October 2000
Roby, D.D., K. Collis, et al. 2018. Implementation and evaluation of efforts to reduce predation on ESA-listed salmonids by Caspain terns nesting at East Sand Island, Columbia River estuary. Final annual report to Bonneville Power Administration, Portland, Oregon. 59 pp.	May 2018
Roby, D.D., K. Collis, S.K. Nelson, K. Larson and K. Bixler. 2004. Caspian tern nesting ecology and diet in San Francisco Bay and Dungeness National Wildlife Refuge: 2004 final annual report. 52 p. (available through website: www.columbiabirdresearch.org)	January 2004
Roby, D.D., K. Collis, P.J. Loschl, Y. Suzuki, D.E. Lyons, T.J. Lawes, K.S. Bixler, B. Caillouet, B. Underwood, A.F. Evans, B. Cramer, A. Turecek, Q. Payton, and M. Hawbecker. 2017. Avian predation on juvenile salmonids: evaluation of the Caspian Tern Management Plan in the Columbia River Estuary. 2016 Final Annual Report to the Bonneville Power Administration and the Northwest Power and Conservation Council, Portland, Oregon. 83 pp.	March 2017
Roby, D.D., K. Collis, P.J. Loschl, J. Tennyson, Y. Suzuki, A. Munes, S. Toomey, A.F. Evans, B. Cramer, A. Turecek, Q. Payton. 2015. Implementation of the Inland Avian Predation Management Plan, 2014 Final Report. Submitted to the USACE-Walla Walla District, Walla Walla, WA. 95 pp.	July 2015
Roby, D.D., K. Collis, L. Adrean, D. Battaglia, D.E. Lyons, K. Nelson, A. Patterson, C. Spiegel, Y. Suzuki, C. Wolf, B. Cramer, A. Evans, M. Hawbecker, and J. Sheggeby. Caspian tern nesting ecology and diet in San Francisco Bay and interior Oregon. 2009 Draft Annual Report to the U.S. Army Corps of Engineers – Portland District, Portland, OR. 58 pp.	September 2010
Roby, D.D., K. Collis, J.Y. Adkins, Y. Suzuki, B. Courtot, D.E. Lyons, A.M. Myers and C. Couch. 2005. Colony Size, Nesting Success, and Predation on Salmon Smolts by Caspian Terns and Double-Crested Cormorants in the Lower Columbia River. Pacific Seabirds 32: 52-53.	October 2005
Roby, D.D., K. Collis, J.Y. Adkins, M. Correll, K. Courtot, B. Cramer, N. Nostetter, P. Loschl, D.E. Lyons, T. Marcella, Y. Suzuki, J. Tennyson, A. Evans, M. Hawbecker, J. Sheggeby, and S. Sebring. 2010. Research, monitoring, and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River. 2009 Annual Report to the US Army Corps of Engineers and the Bonneville Power Administration, Portland OR. 146p	April 2010
Roby, D.D., K. Collis, J.Y. Adkins, C. Couch, B. Courtot, R. Lord, D.E. Lyons, Y. Suzuki, A. Evans, and M. Hawbecker. 2006. Research, Monitoring, and Evaluation of Avian Predation on Salmonid Smolts in the Lower and Mid-Columbia River. 2005 Season Summary submitted to the Bonneville Power Administration and the U.S. Army Corps of Engineers, Portland, OR.	June 2006
Roby, D.D., K. Collis, J. Adkins, L. Adrean, D. Battaglia, B. Cramer, P. Loschl, T. Marcella, K. Nelson, D.E. Lyons, F. Mayer, Y. Suzuki, A. Evans, M. Hawbecker, and J. Sheggeby. 2009. Caspian tern nesting ecology and diet in San Francisco Bay and interior Oregon: 2008 annual report. Report submitted to the U.S. Army Corps of Engineers, Portland, OR. 62 pp.	January 2009
Roby, D.D., K. Collis, D.E. Lyons, Y. Suzuki, P.J. Loschl, T.J. Lawes, K.S. Bixler, A. Piggott, A. Evans, B. Cramer, A Turecek, Q. Payton, and M. Hawbecker. 2016. Avian predation on juvenile salmonids: Evaluation of the Caspian Tern Management Plan in the Columbia River estuary. 2015 Annual Report to the Bonneville Power Administration, Portland, Oregon. 42 pp.	April 2016
Roby, D.D., K. Collis, D.E. Lyons, Y. Suzuki, P.J. Loschl, T.J. Lawes, K.S. Bixler, A. Peck-Richardson, A. Piggott, O. Bailey, H. McKinnon, A. Laws, J. Mulligan, S. Toomey, A. Munes, E. Schniedermeyer, A. Wilson, G. Smith, K. Saunders, L. Hanwacker, C. Horton, A.F. Evans, B. Cramer, A. Turecek, Q. Payton, M. Hawbecker, and D. Kuligowski. 2015. Research, monitoring and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River, 2014 Final Annual Report. Submitted to Bonneville Power Administration, USACE-Portland District, and Grant County (WA) Public Utility District/Priest Rapids Coordinating Committee, Portland, OR and Wenatchee, WA. 312 pp.	July 2015
Roby, D.D., K. Collis, D.E. Lyons, Y. Suzuki, J.Y. Adkins, L. Reinalda, N. Hostetter, L. Adrean, A. Evans, and M. Hawbecker. 2008. Research, Monitoring, and Evaluation of Avian Prediation on Salmonid Smolts in the Lower and Mid-Columbia River. Draft Season Summary to the Bonneville Power Administration and the US Army Corps of Engineers, Portland OR. 148 pp.	January 2008
Roby, D.D., K. Collis, D.E. Lyons, T.J. Lawes, Y. Suzuki, P.J. Loschl, K.S. Bixler, K. Kelly, E. Schniedermeyer, A.F. Evans, B. Cramer, J. Morella, A. Turecek, Q. Payton, and M. Hawbecker. 2017. Evaluation of foraging behavior, dispersal, and predation on ESAlisted salmonids by Caspian terns displaced from managed colonies in the Columbia Plateau region. 2016 Final Annual Report to the Grant County (WA) Public Utility District and the Priest Rapids Coordinating Committee, Ephrata, Washington. 123 pp.	April 2017
Roby, D.D., K. Collis, D.E. Lyons, T. Lawes, Y. Suzuki, P. Loschl, K. Bixler, E. Hanwacker, J. Mulligan, A. Munes, E. Schniedermeyer, A. Evans, B. Cramer, A. Turecek, Q. Payton, M. Hawbecker. 2016. Evaluation of foraging behavior, dispersal, and predation on ESA-listed salmonids by Caspian terns displaced from managed colonies in the Columbia Plateau Region. 2015 Annual Report to the Grant County Public Utility District and the Priest Rapids Coordinating Committee, Wenatchee, WA. 121 pp.	May 2016
Roby, D.D., K. Collis, D.E. Lyons, J.Y. Adkins, Y. Suzuki, P. Loschl, T. Lawes, K. Bixler, A. Peck-Richardson, A. Patterson, S. Collar, N. Banet, K. Dickson, G. Gasper, L. Kreiensieck, K. Atkins, L. Drizd, J. Tennyson, A. Mohoric, A. Evans, B. Cramer, M. Hawbecker, N. Hostetter, J. Zamon, and D. Kuligowski. 2013. Research, monitoring, and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River. Final 2012 Annual Report, Bonneville Power Administration and U.S. Army Corps of Engineers, Portland, OR. 239 pp.	September 2013
Roby, D.D., K. Collis, D.E. Lyons, J.Y. Adkins, Y. Suzuki, P. Loschl, T. Lawes, K. Bixler, A. Peck-Richardson, A. Patterson, S. Collar, A. Piggott, H. Davis, J. Mannas, A. Laws, J. Mulligan, K. Young, P. Kostka, N. Banet, E. Schniedermeyer, A. Wilson, A. Mohoric, A. Evans, B. Cramer, M. Hawbecker, N. Hostetter, A. Turecek, J. Zamon, and D. Kuligowski. 2014. Research, monitoring, and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River. Draft 2013 Annual Report to the U.S. Army Corps of Engineers and the Bonneville Power Administration, Portland, OR. 237 pp. (Available through internet: www.birdresearchnw.org)	February 2014
Roby, D.D., K. Collis, D.E. Lyons, J.Y. Adkins, P. Loschl, Y. Suzuki, T. Marcella, L. Kerr, A. Evans, B. Cramer, N. Hostetter, B.P. Sandford, R.D. Ledgerwood, D.R. Kuligowski, and S. Sebring. 2011. Impacts of avian predation on salmonid smolts from the Columbia and Snake rivers, 2004-2009 Synthesis Report. U.S. Army Corps of Engineers – Walla Walla District, Walla Walla, Washington. 206 p.	May 2011
Roby, D.D., K. Collis, D.E. Lyons, J.Y. Adkins, P. Loschl, Y. Suzuki, D. Battaglia, T. Marcella, T. Lawes, A. Peck-Richardson, L. Bayliss, L. Faulquier, D. Harvey, E. Tompkins, J. Tennyson, A. Evans, N. Hostetter, B. Cramer, M. Hawbecker, R.D. Ledgerwood, S. Sebring. 2011. Research, monitoring, and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River. 2010 Final Annual Report to Bonneville Power Administration and the U.S. Army Corps of Engineers, Portland, Oregon. 166 p.	October 2011
Roby, D.D., K. Collis, D.E. Lyons, A. Evans, J.Y. Adkins, Y. Suzuki, P. Loschl, T. Lawes, K. Bixler, B. Cramer, A. Peck-Richardson, M. Hawbecker, N. Hostetter, E. Dykstra, J. Harms, W. Mashburn, J. Tennyson, N. Ventolini, R.D. Ledgerwood, and S. Sebring. 2012. Research, monitoring, and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River. Final 2011 Annual Report. Bonneville Power Administration and U.S. Army Corps of Engineers, Portland, OR. 171 pp.	August 2012
Roby, D.D., K. Collis, A. Evans, S.K. Nelson, K. Bixler, and D. Lyons. 2005. Caspian Tern Nesting Ecology and Diet at Colony Sites on the Olympic Peninsula, WA. 2005 Annual Report to the US Fish & Wildlife Service, Migratory Birds and Habitat Programs, Portland, OR, USA.	October 2005
Roby, D.D., K. Bixler, J.F. Piatt, K. Collis, A. Evans. 2006. Observations of Caspian terns at Dungeness National Wildlife Refuge and distribution of gull colonies in Puget Sound, Washington. 2006 Final Annual Report, U.S. Fish and Wildlife Service, Portland, Oregon. 17 pp.	November 2006
Roby, D.D., J.Y. Adkins, K. Bixler, K. Collis, and A. Evans. 2007. Surveys for Nesting Glaucous-winged/Western Gulls and Caspian Terns in Puget Sound, Washington. Final Annual Report to the US Fish & Wildlife Service, Portland OR. 12 pp.	October 2007
Roby, D.D. and A.K. Hovey. 2002. Pigeon Guillemot restoration research at the Alaska SeaLife Center. Exxon Valdez Oil Spill Restoration Project Draft Final Report (Restoration Project 01327). 79 pp.	July 2002
Piggott, A.R., S.B. Stark, B.R. Higgins, B.P. Underwood, D.B. Irons, and D.D. Roby. 2017. Recovery monitoring of the pigeon guillemot population at the Naked Island Group in Prince William Sound, Alaska. Restoration Project 2016 Annual Report, U.S. Fish and Wildlife Service, Anchorage, Alaska. 31 pp.	May 2017
Peterson, R.C., D.E. Lyons, D.D. Roby, and Y. Suzuki. 2016. Pacific Flyway Caspian Tern population monitoring in 2015. Annual Report to the U.S. Fish and Wildlife Service, Region 1, Portland, Oregon. 27 pp.	February 2016
Peterson, J.T., and J. Saenz. 2013. THE DEVELOPMENT OF AN ADAPTIVE, DECISION-SUPPORT TOOL FOR THE CONSERVATION AND RECOVERY OF LEAST CHUB, IOTICHTHYS PHLEGETHONTIS. Interim final report, December 2013. Department of Fisheries and Wildlife, 104 Nash Hall, Oregon State University, Corvallis, Oregon.	December 2013
Peterson, J.T., and J. Saenz. 2012. The development of an adaptive, decision-support tool for the conservation and recovery of least chub, Iotichthys phlegethontis. 2011. Annual Report to the Bureau of Land Department of Fisheries and Wildlife, 104 Nash Hall, Oregon State University, Corvallis, Oregon.	December 2011
Peterson, J.T., S. Whitlock, and A. Duarte. 2018. Evaluation of California Central Valley Project and State Water Project Fish Salvage Estimators. Draft task Completion Report to Metropolitan Water District of Southern California, August 2018, 23 pp.	August 2018
Peterson, J.T., M.C. Freeman, J. LaFontaine, C. Elliott. 2013. Multi-resolution assessment of potential climate change effects on aquatic and hydrologic dynamics part ii: integration and validation. Report to USGS National Climate Change and Wildlife Science Center. Reston VA.	January 2013
Peterson, J.T., K. McDonnell, M.C. Colvin. 2014. Coarse Resolution Planning Tools for Prioritizing Central Valley Project Improvement Act Fisheries Activities. Draft Progress Report to Central Valley Project Improvement Act Fisheries Program.	August 2014
Peterson, J.T., E. McCreless, A. Duarte. 2019. Structured Decision Making for Scientific Management in the San Francisco Bay-Delta. Annual Progress Report to U.S. Bureau of Reclamation, Bay-Delta Office.	May 2019
Peterson, J.T., C. Sharpe, M.L. Kent, C.B. Schreck, J. Sanders, and J.T. DeWeber. 2018. Fall Creek Prespawn Mortality pilot 2017. Draft Annual Report for U.S. Army Corps of Engineers Portland District, Portland OR.	December 2018
Peterson, J.T., A. Duarte, K. McDonell. 2019. ADAPTIVE MANAGEMENT OF CENTRAL VALLEY PROJECT FISHERIES PHASES I - V. Draft final report to the US Fish and Wildlife Service, Central Valley Improvement Act Program, Sacramento CA.	January 2020
Peterson, J.T., 2022. Evaluation of the Effectiveness of Alternative Willamette River Flow Regimes for Supporting At-risk Salmonids. U.S. Army Corps of Engineers Portland District, Portland OR (October 2022)	October 2022
Peterson, J.T. and J.T. Deweber. 2018. Associations and quasi-extinction estimates for abundance indices and occupancy estimates for San Francisco bay delta fish species. Draft task Completion Report to Metropolitan Water District of Southern California, July 2018, 64 pp.	July 2018
Peterson, J.T. and J. Saenz. 2015. The Development of An Adaptive, Decision-Support Tool For The Conservation And Recovery Of Least Chub, Iotichthys Phlegethontis Report to Bureau of Land Management. May 2015. Department of Fisheries and Wildlife, 104 Nash Hall, Oregon State University, Corvallis, Oregon.	May 2015
Peterson, J.T. 2013.Coarse Resolution Planning Tools for Prioritizing Central Valley Project Improvement Act Fisheries Activities, Sturgeon Model. Progress Report to CVPIA Fisheries Program, Sacramento CA.	June 2013
Peterson, J.T. 2013.Coarse Resolution Planning Tools for Prioritizing Central Valley Project Improvement Act Fisheries Activities, Steelhead Model. Progress Report to CVPIA Fisheries Program, Sacramento CA.	July 2013
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Oregon Department of Fish and Wildlife. 2021. Biological review, occupancy and abundance, and sampling considerations for Umpqua Chub status and trend monitoring. Oregon Department of Fish and Wildlife – Science Bulletin 2021-01, Salem, OR	March 2021
Orben, R.A., D.B. Irons, S.A. Shaffer, and D.D. Roby. 2012. Winter distribution and ecology of black-legged kittiwakes (Rissa tridactyla) and thick-billed murres (Uria lomvia) breeding at two Bering Sea colonies with differing population trends. NPRB Project 911 Final Report, North Pacific Research Board, Anchorage, AK. 88 pp.	November 2012
Murphy, S.M., R.J. Ritchie, D.D. Roby, D.L. Nordmeyer, and A.G. Palmer. 2001. Responses of Peregrine Falcons to low-level jet aircraft. Invited paper presented at the Effects of Noise on Wildlife Conference, Goose Bay, Labrador. Institute for Environmental Research and Monitoring. Terra Borealis No. 2:34-35. Expanded Abstract.	August 2001
Monzyk, F.R., A.S. Harrison, and J.T. Peterson. 2024. Warner Sucker eDNA Field Evaluations. ODFW Science Bulletin Fish Research Project Oregon	August 2024
Lyons, D.E., D.D. Roby, A.F. Evans, N.J. Hostetter, and K. Collis. 2011. Benefits to Columbia River anadromous salmonids from potential reductions in avian predation on the Columbia Plateau. Final Report to the U.S. Army Corps of Engineers, Walla Walla, WA. 78 pp.	September 2011
Lyons, D.E., D.D. Roby, A.F. Evans, N.J. Hostetter, K. Collis, and S.H. Sebring. 2014. Benefits to Columbia River anadromous salmonids from potential reductions in predation by double-crested cormorants nesting at the East Sand Island colony. Final Report to the U.S. Army Corps of Engineers – Portland District. U.S. Army Corps of Engineers, Portland, OR. 50 pp. (Available through internet: www.birdresearchnw.org)	February 2014
Lyons, D.E., D.D. Roby, A.F. Evans, N.J. Hostetter, K. Collis, and S.H. Sebring. 2011. Benefits to Columbia River anadromous salmonids from potential reductions in predation by double-crested cormorants nesting at the East Sand Island colony. Draft Report to the U.S. Army Corps of Engineers – Portland District. U.S. Army Corps of Engineers, Portland, OR. 50 pp.	December 2011
Lyons, D.E., A.F. Evans, N.J. Hostetter, A. Piggot, L. Weitkamp, T.P. Good, D.D. Roby, K. Collis, P.J. Loschl. And B. Cramer. 2014. Factors influencing predation on juvenile salmonids by double-crested cormorants in the Columbia River estuary: A retrospective analysis. Report prepared for the U.S. Army Corps of Engineers – Portland District, Portland, OR. 30 pp.	May 2014
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Li, H. W., J. B. Kauffman, J. L. Li, R. L. Beschta, B. A. McIntosh, and P. A. McDowell. 2000. Hydrologic, geomorphic and ecological connectivity in Columbia River watersheds: Implications for endangered salmonids. Completion Report EPA/NSF Water and Watersheds Research Program. R82-4774-010 and R82-4774-011. 112pp.	January 2000
Koloszar, J. G. and R. G. Anthony. 2009. Results of Peregrine Falcon Breeding Surveys in Oregon, 2009. Final Report to Oregon Department of Fish and Wildlife. Oregon Cooperative Fish & Wildlife Research Unit. Oregon State University, Corvallis, OR. 75p + tables, figures, and appendices.	November 2009
Kauffman, J.B., I. Basuki, V. Arifanti, G. Anshari, D. Hadriyanto, J. Peterson and D. Murdiyarso. 2016. The Kalimantan Wetlands and Climate Change Project (KWACs), Progress Report. Prepared for: U.S. Agency for International, Development American Embassy – Jakarta, Jl. Medan Merdeka Selatan No. 3-5, Jakarta 10110, Indonesia.	July 2016
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Independent Multidisciplinary Science Team. (C.B. Schreck is a member of this team and co-author of this report). 2002. Recovery of wild salmonids in western Oregon lowlands. Technical Report 2002-1 to the Oregon Plan for Salmon and Watersheds, Governor's Natural Resources Office, Salem, Oregon. 169pp. (This report has been peer reviewed).	January 2002
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Ewing, R. D. and H. W. Li. 2000. Development of an ornithine decarboxylase assay as a measure of recent growth in Pacific salmonids. Oregon Sea Grant Project Final Report. R/ECO-05 Index NA050Y.	January 2000
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Evans, A., Q. Payton, B. Cramer, K. Collis, D. Hewitt, and D.D. Roby. 2015. Colonial waterbird predation on Lost River and shortnose suckers based on recoveries of passive integrated transponder tags. Draft Technical Report to Bureau of Reclamation, Klamath Basin Area Office, Klamath Falls, Oregon. 23 pp.	July 2015
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Dugger, KM, S Andrews, et al. 2022. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 30pp.	December 2022
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Dugger, KM, S Andrews, et al. 2020. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 28pp.	December 2020
Dugger, KM, S Andrews, et al. 2019. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 27p.	February 2020
Dugger, KM, S Andrews, et al. 2018. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 28p.	March 2019
Dugger, KM, S Andrews, et al. 2017. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 33p.	January 2018
Dugger, KM, S Andrews, et al. 2016. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 33p.	December 2016
Dugger, KM, S Andrews, et al. 2015. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 33p.	December 2015
Dugger, KM, S Andrews, et al. 2014. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 24p.	December 2014
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Dugger, KM, S Andrews, et al. 2012. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 25p.	December 2012
Dugger, KM, S Andrews, et al. 2011. Demographic Characteristics and Ecology of Spotted Owls (Strix occidentalis caurina) in the Southern Oregon Cascades. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report. 27p.	January 2012
Dugger, KM, S Ackers, et al. 2022. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 68pp.	December 2022
Dugger, KM, S Ackers, et al. 2021. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 68pp.	December 2021
Dugger, KM, S Ackers, et al. 2020. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 66pp.	December 2020
Dugger, KM, S Ackers, et al. 2019. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 66pp.	December 2019
Dugger, KM, S Ackers, et al. 2018. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 59pp.	October 2018
Dugger, KM, S Ackers, et al. 2017. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 59pp.	January 2018
Dugger, KM, S Ackers, et al. 2014. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 51pp.	December 2014
Dugger, KM, S Ackers, et al. 2013. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 51pp.	December 2013
Dugger, KM, S Ackers, et al. 2012. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 55pp.	December 2012
Dugger, KM, S Ackers, et al. 2011. The Demography of Northern Spotted Owls (Strix occidentalis caurina) on the Willamette National Forest, Oregon. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. Annual Progress Report, 53pp.	December 2011
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Dugger KM, T Tippin, and LS Andrews. 2015. Apparent occupancy and the reproductive rates of Northern Spotted Owls in the Ashland Watershed, Siskiyou Mountains, southern Oregon 1993-1997, 2005-2014. Annual Report. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. 17pp.	July 2015
Dugger KM, LS Andrews, et al. 2018. Apparent occupancy and the reproductive rates of Northern Spotted Owls in the Ashland Watershed, Siskiyou Mountains, southern Oregon 1993-1997, 2005-2017. Annual Report. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. 19pp.	July 2018
Dugger KM, LS Andrews, and T. Tippin. 2019. Apparent occupancy and the reproductive rates of Northern Spotted Owls in the Ashland Watershed, Siskiyou Mountains, southern Oregon 1993-1997, 2005-2018. Annual Report. Oregon Cooperative Fish and Wildlife Research Unit (OCFWRU), Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon. 16pp.	March 2020
Dugger KM, JW Schilling, RG Anthony, and LS Andrews. 2011. Apparent occupancy and the reproductive rates of Northern Spotted Owls in the Ashland Watershed, Siskiyou Mountains, southern Oregon 1993-1997, 2005-2011. Department of Fisheries and Wildlife, Oregon Cooperative Fish and Wildlife Research Unit, Corvallis, OR	December 2011
Duarte, A. and J.T. Peterson. 2017 Fitting N-mixture models to count data with unexplained heterogeneity: bias, diagnostics, and alternative approaches. Task Completion Report to Metropolitan Water District of Southern California, 24 July 2017, 80 pp.	July 2017
DeWeber, J.T. and J.T. Peterson. 2017. Science Synthesis and Decision Support for Mainstem Willamette River Instream Flows. Report Prepared for U. S. Army Corps of Engineers Portland District – Willamette Valley Project	September 2017
Currens, K. P., H. W. Li, J. D. McIntyre, D. R. Montgomery, and D. W. Reiser. 2000. Review of "Statewide Strategy to Recover Salmon: Extinction is Not an Option". Independent Science Panel, Report 2000-1, May 2000. 20pp.	January 2000
Currens, K. P., H. W. Li, J. D. McIntyre, D. R. Montgomery, and D. W. Reiser. 2000. Preliminary review of issues regarding development of a statewide salmon recovery-monitoring program. Independent Science Panel, Technical Memorandum 2000-1, January 2000. 4pp.	January 2000
Collis, K., M. Hawbecker, D.D. Roby, M. Thompson, C. Faustino, C. Cardoni, C.D. Anderson, and D.E. Lyons. 2001. Cormorant and brown pelican use of excluder-fitted pile dikes in the Colubmia River estuary. 2001 Final report to the U.S. ARmy Corps of Engineers, Portland District. 33 pp.	October 2001
Collis, K., M. Hawbecker, D.D. Roby, C. Couch, J. Wolf, and C.D. Anderson. 2001. Pelican, cormorant, and pinniped use of pile dikes and jetties at the mouth of the Columbia River. Draft final report to the U.S. Army Corps of Engineers, Portland District. 39 pp.	October 2001
Collis, K., D.D. Roby, P.J. Loschl, Y. Suzuki, K. Kelly, E. Schniedermeyer, A.F. Evans, B. Cramer, A Turecek, and Q. Payton. 2016. Implementation of the Inland Avian Predation Management Plan, 2016. Draft Annual Report to the U.S. Army Corps of Engineers-Walla Walla District and the U.S. Bureau of Reclamation, Walla Walla, WA. 104 pp.	September 2016
Collis, K., D.D. Roby, P.J. Loschl, Y. Suzuki, A. Munes, J. Mulligan, E. Schniedermeyer, A.F. Evans, B. Cramer, A. Turecek, and Q. Payton. 2016. Implementation of the Inland Avian Predation Management Plan, 2015. Final Annual Report submitted to the U.S. Army Corps of Engineers – Walla Walla District and the U.S. Bureau of Reclamation, Walla Walla, Washington. 100 pp.	March 2016
Collis, K., D.D. Roby, N.J. Hostetter, A.F. Evans, D.E. Lyons, J.Y. Adkins, Y. Suzuki, P. Loschl, and T. Lawes. 2013. Caspian tern colony site assessment: Management opportunities in western North America. Final Report to the U.S. Army Corps of Engineers – Walla Walla District, Walla Walla, WA. 102 pp.	April 2013
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Collis, K., D.D. Roby, D.E. Lyons, Y. Suzuki, J.Y. Adkins, L. Reinalda, M. Bockes, P. Loschl, D. Battaglia, T. Marcella, B. Cramer, A. Evans, M. Hawbecker, M. Carper, J. Sheggeby, and S. Sebring. 2009. Evaluate the impacts of avian predation on salmonid smolts from the Columbia and Snake rivers: 2008 final season summary. Annual report of research results to the U.S. Army Corps of Engineers, Walla Walla, WA. 100 pp.	January 2009
Collis, K., D.D. Roby, D.E. Lyons, Y. Suzuki, J.Y. Adkins, L. Reinalda, C. Hand, N. Hostetter, A. Evans, M. Hawbecker. 2007. Research, monitoring, and evaluation of avian predation on salmonid smolts in the lower and mid-Columbia River. 2006 Season Summary. Bonneville Power Administration and U.S. Army Corps of Engineers, Portland, Oregon. 57 pp.	February 2007
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Caudill, C.C., Naughton, G., Taylor, G., Keefer, M., Knoff, M., Roumasset, A., Schreck, C.B. and Kent, M. Migration behavior and spawning success in spring Chinook salmon in Fall Creek and the North Fork Middle Fork Willamette River: relationships among fate, fish condition, and environmental factors: 2008-2011. US Army Corps of Engineers, Annual Willamette River Science Review, Corvallis, OR Jan 30- Feb 1, 2012.	January 2012
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Anthony, R. G., E. D. Forsman, A. B. Franklin, D. R. Anderson, K. P. Burnham, G. C. White, C. J. Schwarz, J. Nichols, J. Hines, G. S. Olson, S. H. Ackers, S. Andrews, B. L. Biswell, P. C. Carlson, L. V. Diller, K. M. Dugger, K. E. Fehring, T. L. Fleming, R. P. Gerhardt, S. A. Gremel, R. J. Guti�rrez, P. Happe, D. R. Herter, J. M. Higley, R. B. Horn, L. L. Irwin, P. J. Loschl, J. A. Redi, and S. G. Sovern. 2004. Status and trends in demography of northern spotted owls. Report to Interagency Regional Monitoring Program, USDA Forest Service, Portland, Oregon.	September 2004
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Data or Software Releases

Type	Citation	Publication Date
Data Release	Moritsch, MM, KB Byrd, MJ Davis, A Good, JZ Drexler, I Woo, JT Morris, L Windham-Myers, EE Grossman, K Poppe, J Rybczyk, and G Nakai. 2022. Projected future habitat, elevation change, and carbon accumulation of coastal wetlands in the Nisqually River Delta, Washington. U.S. Geological Survey data release. https://doi.org/10.5066/P9ONIUCK	2017
Data Release	Byrd, KB, LR Ballanti, NM Thomas, DK Nguyen, JR Holmquist, M Simard, L Windham-Myers, LM Schile, VT Parker, JC Callaway, MC Vasey, ER Herbert,<b> </b>MJ Davis, I Woo, S De La Cruz, KD Kroeger, ME Gonneea, J O'Keefe Suttles, JP Megonigal, M Lu, EK McFarland, HEA Brooks, BG Drake, G Peresta, A Peresta, T Troxler, and E Castaneda-Moya. 2017. Tidal marsh biomass field plot and remote sensing datasets for six regions in the conterminous United States: U.S. Geological Survey data release. https://doi.org/10.5066/F77943K8	June 2024

Cooperative Fish and Wildlife Research Units Program: Oregon Education, Research and Technical Assistance for Managing Our Natural Resources

Oregon Research Activities

Cooperative Fish and Wildlife Research Units Program: Oregon
Education, Research and Technical Assistance for Managing Our Natural Resources