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
Hatchery Program Viability Assessment	June 2024	Oregon Department of Fish and Wildlife (ODFW) operates 33 hatchery facilities in Oregon, 14 of which are state-owned. Statewide, these facilities produce fish for over 70 salmon and steelhead hatchery programs (i.e., releases of a specific anadromous species/run type in one or more locations within a basin or sub-basin). They also produce several million resident trout that are stocked in waterbodies throughout the state. The impacts of climate change (e.g., increasing stream temperatures, higher disease incidence, decreasing stream flow, and reduced ocean survival) will affect the ability of hatchery programs to meet fishery and conservation objectives. The goal of this project is to assess vulnerability to climate change impacts, including risks to program viability, for a sample set of hatchery programs representing different geographic areas of the state and the primary species raised in Oregon hatcheries. Findings will be presented to the Oregon Legislature as part of a third-party assessment of the operations, sustainability, and climate vulnerability of state-owned fish hatcheries. A completed report will be presented to the Joint Committee on Ways and Means during the 2025 legislative session, and will directly inform policy decisions at the state level.	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	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.	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.
Assessment of white sturgeon recruitment in John Day reservoir	August 2024	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.”	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.”
Adaptively managing seabird habitat on the Oregon Coast Refuge Complex	June 2026	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.	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	September 2024	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.	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 2024	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.	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 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.	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.
Integrated population modeling to improve forecasting for coho salmon and steelhead returns and the status of their habitat in Oregon	June 2024	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.	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	March 2027	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.	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 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.	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
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.
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
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. 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
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 Casp

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