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

Alaska Research Activities

Nate Cathcart, research technician with the Alaska Cooperative Fish and Wildlife Research Unit, conducts a snorkel survey for juvenile Chinook salmon within a logjam along the Chena River, Alaska.

The research program of the Alaska Unit will be aimed at understanding the ecology of Alaska's fish and wildlife; evaluating impacts of land use and development on these resources; and relating effects of social and economic needs to production and harvest of natural populations.

In addition to the expected Unit functions of graduate student training/ instruction and technical assistance, research efforts will be directed at problems of productivity, socioeconomic impacts, and perturbation on fish and wildlife populations, their habitats and ecosystems. Fisheries research will emphasize water quality, habitat characteristics, and life history requirements of arctic and subarctic fish populations. Wildlife research will focus on evaluation of habitat quality and ecology of northern birds and mammals. Unit research will also be directed at integrated studies of fish and wildlife at the ecosystem level.

Projects

Project	Completion Date
Dolly Varden Char Bioelectrical Impedance Modeling	May 2013	The objective of this research is to build and validate BIA models for Dolly Varden. Fish (N=192) were sampled from overwintering grounds in the Ivishak River, located on the North Slope of Alaska during sampling events in September of 2009 to 2011. In the field, fish were sacrificed, weighed, measured, and BIA measures of resistance and reactance were collected. Samples were transported to University of Alaska, Fairbanks laboratories, where they were analyzed for proximate content using standardized methods (AOAC 1990). All subsets multiple linear regression will be used to generate predictive equations relating BIA data to laboratory derived estimates of lipid, protein, water, and ash. The validity of these models will be accessed by using k-fold validation to generate diagnostic statistics such as root mean squared error and the PRESS statistic.	Estimating the physiological well-being, or condition of an individual fish or a population is a common goal of fisheries research. Traditionally, condition has been estimated from aspects of an individual’s length or weight. Because lipid is the main form of accumulated energy and respiratory substrate in fish, such indices infer lipid content from individual morphology assuming changes in morphology are met with proportional changes in lipid (Shulman 1974). However, this assumption may be false within capital breeding Arctic fish such as Dolly Varden due to the size and magnitude of energy cycles they experience throughout the year (Glass 1989). During periods of physiological stress or starvation, such as overwintering and migration, lipid may be metabolized at rates faster than water (energetically inert) is lost (Brek 2008). Other researchers suggest further that lost lipid may actually be replaced with water (Shearer 1994). Such physiological processes aid in the maintenance of individual body weight and morphology despite potentially large changes in lipid and energy content. Because morphological condition indices cannot distinguish lipid weight from water weight they are less sensitive to changes in the lipid and energy content of Dolly Varden. While proximate analysis may permit the estimation of proximate constituents such as lipid and water directly, the procedure is time consuming, expensive, and requires the sacrifice of the subject. What is needed is a link between coarse morphological approaches, and costly, more complicated but sensitive lab-based methods. Recent research using bioelectrical impedance analysis (BIA) suggests that this technique may provide such a link (Cox and Hartman 2005). Previous research investigating temporal and spatial trends in Dolly Varden condition using traditional metrics has had limited success (Gallaway et al. 1991; Brown 2008). Following development, Dolly Varden BIA models will permit rapid, non-lethal, and high quality estimates of lipid, and other proximate constituents in the field. Relative to morphometric based indices, the greater precision of these condition data should facilitate more effective change detection in both time and space and aid in the formation of species-habitat relationships that are paramount to understanding and predicting the biological consequences of climate change.
Sockeye salmon competition on Afognak Island	June 2014	Determine if stickleback and juvenile sockeye complete for the same food resources.	None
Chinook and coho salmon productivity on the Unalakleet River	December 2016	Understand how marine subsidies from pink and chum salmon runs affect the productivity of Chinook and coho salmon.	None
Fish movement on the Arctic Coastal Plain	September 2014	We aim to understand where fish move among habitats, and identify the habitats crucial for spawning and feeding.	None
Mitigating Marine Nutrient Loss in the Upper Snake River Basin	December 2012	This project looks at how nutrient loss from suppressed salmon runs in the Columbia River Basin are affecting streams, and how nutrient mitigation measures help restore productivity.	None
Invertebrate Productivity in the Context of Climate Change	September 2015	Aim is to determine how food webs that support migratory birds are influenced by nutrient flux and warming from climate change.	None
Bioenergetics and habitat use of wetlands by fish of the Arctic Coastal Plain	June 2015	Understand how fish utilize habitats and shape the food webs which support them. Project has a major climate change component, related to wetting and drying of aquatic habitats.	None
FY11 Wildlife Base Supplement-Barboza	June 2011	Analyze samples for N isotopes to estimate use of body protein stores in reindeer, muskox, and caribou.	None
FY11 Wildlife Base Supplement-Brinkman	June 2011	Assist ADFG with the design and implementation of a pilot monitoring program to estimate population densities and trends of Sitka black-tailed deer in southeast Alaska.	None
FY11 Wildlife Base Supplement	June 2011	Study survivorship and habitat selection of neonate and fawn deer on Prince of Wales Island in Southeast Alaska.	None
RCN: Vulnerability of Permafrost Carbon	May 2014	Advance field or create new directions in research or education.	None
Assessing Impact of Fire and Insects	May 2011	Analyze the impact of disturbances from insects and fire on the terrestrial carbon budget for the forested ecoregions of Canada, Alaska, and the western U.S.	None
Ecology and Demographics of Chinook salmon	March 2011	This project is a comprehensive study of the relationship between ecological processes and the population dynamics of the Chinook salmon in the Chena and Salcha Rivers. This project will improve understanding of Chinook salmon and the ability to manage Chinook populations and their habitats for sustainability.	None
Circumarctic Rangifer Monitoring	March 2011	Initiate a study to determine how projected changes in abundance and quality of caribou forage plants will effect seasonal changes in body weight and fat and protien composition in caribou and reindeer.	None
Ectoparasites of salmon using eDNA	August 2023	Ectoparasites on fish are a source of stress for individuals and may become more prevalent with climate change and associated water warming. However, the distribution of these parasites, such as copepod "sea lice", are largely unknown. This is especially the case in Alaskan waters, despite the economic and cultural importance of Pacific salmon. In cooperation with fish pathologists, physiologists, and veterinarians with the University of Alaska Fairbanks Museum of the North and the Colloredo State University Veterinary Science Summer Fellowship program, this project assesses the distribution of fish parasites and pathogens on museum reference specimens and seeks to demonstrate the effectiveness of eDNA as a monitoring tool for these organisms.	Ectoparasites on fish are a source of stress for individuals and may become more prevalent with climate change and associated water warming. However, the distribution of these parasites, such as copepod "sea lice", are largely unknown. This is especially the case in Alaskan waters, despite the economic and cultural importance of Pacific salmon. In cooperation with fish pathologists, physiologists, and veterinarians with the University of Alaska Fairbanks Museum of the North and the Colloredo State University Veterinary Science Summer Fellowship program, this project assesses the distribution of fish parasites and pathogens on museum reference specimens and seeks to demonstrate the effectiveness of eDNA as a monitoring tool for these organisms.
Habitat and Avian Communities as Indicators of Environmental Changes in the Boreal Forest of Interior Alaska	May 2011	Provide a local scale assessment of climate-induced change in an area that is poorly understood: the interior Alaska boreal forest ecosystem.	None
Ecology of Smith's Longspurs in Northern Alaska	December 2015	The overall goal of this project is to contribute to conservation strategies for Smith’s Longspurs by further refining our knowledge of their breeding ecology in Alaska, using the unique availability of individually marked birds and baseline data at the Arctic Refuge. Our objectives are to (1) document natal and breeding site fidelity using resightings of individually banded birds, (2) estimate nest survival and analyze covariates that influence nest survival (e.g. habitat and temporal factors), and (3) continue to collect and analyze life history information to better understand breeding parameters such as breeding phenology, adult survival and movements, nesting chronology, habitat preferences, and nest site requirements.	The overall goal of this project is to contribute to conservation strategies for Smith’s Longspurs by further refining our knowledge of their breeding ecology in Alaska, using the unique availability of individually marked birds and baseline data at the Arctic Refuge. Our objectives are to (1) document natal and breeding site fidelity using resightings of individually banded birds, (2) estimate nest survival and analyze covariates that influence nest survival (e.g. habitat and temporal factors), and (3) continue to collect and analyze life history information to better understand breeding parameters such as breeding phenology, adult survival and movements, nesting chronology, habitat preferences, and nest site requirements.
Shorebird Ecology in North Slope Coastal Habitats	December 2010	Determine use of coastal habitats by shorebirds on Alaska's North Slope to assist managers in protecting coastal resources and mitigating climate change and anthropogenic stressors.	None
FY11 ADFG Wildlife Base Funding	June 2011	Research projects as mutually agreed to by the Cooperators.	None
Juvenile salmon growth and heat stress	September 2025	The goal of this project is to understand how juvenile salmon growth in freshwater habitats is influenced by water temperatures and thermal stress. The sample collection for this project is on Chinook and coho salmon (Oncorhynchus tshawytscha and O. kisutch, respectively) in and around the Deshka River, a culturally, ecologically, and economically important salmon fishery in south-central Alaska. This research will be the thesis project for a Masters student in Fisheries at the University of Alaska Fairbanks. We will estimate recent growth from juvenile salmon otoliths and feeding success from stomach fullness for analysis with existing water temperature and thermal stress data. Results are expected to be broadly applicable to the Deshka River and also to salmon management throughout the state. Project results will inform key land and fisheries management decisions.	The goal of this project is to understand how juvenile salmon growth in freshwater habitats is influenced by water temperatures and thermal stress. The sample collection for this project is on Chinook and coho salmon (Oncorhynchus tshawytscha and O. kisutch, respectively) in and around the Deshka River, a culturally, ecologically, and economically important salmon fishery in south-central Alaska. This research will be the thesis project for a Masters student in Fisheries at the University of Alaska Fairbanks. We will estimate recent growth from juvenile salmon otoliths and feeding success from stomach fullness for analysis with existing water temperature and thermal stress data. Results are expected to be broadly applicable to the Deshka River and also to salmon management throughout the state. Project results will inform key land and fisheries management decisions.
Resist-Accept-Direct (RAD) decisionmaking	September 2023	As climate change alters ecosystems worldwide, managers are faced increasingly with challenges in how to manage for its impacts. The Resist-Accept-Direct framework provides a guide for decisionmaking about how, when, and where to choose to implement actions for climate resiliency in ecosystems. This project seeks to apply the RAD framework to river ecosystems worldwide, specifically including the Mississippi River. It is carried out in collaboration with partners across USGS, other Bureaus in the Department of the Interior, and elsewhere in Federal, State and Tribal governance, in addition with non-profit groups. The research helps inform decisions about river management in the face of ongoing climate change.	As climate change alters ecosystems worldwide, managers are faced increasingly with challenges in how to manage for its impacts. The Resist-Accept-Direct framework provides a guide for decisionmaking about how, when, and where to choose to implement actions for climate resiliency in ecosystems. This project seeks to apply the RAD framework to river ecosystems worldwide, specifically including the Mississippi River. It is carried out in collaboration with partners across USGS, other Bureaus in the Department of the Interior, and elsewhere in Federal, State and Tribal governance, in addition with non-profit groups. The research helps inform decisions about river management in the face of ongoing climate change.
Stream restoration effectiveness assessment	October 2024	Stream restoration is a burgeoning industry in Alaska for restoring and remediating aquatic environmental degradation. However, assessment of the effectiveness of stream restoration techniques and the tools used to monitor streams is lacking. This project will work in collaboration with the U.S. Fish and Wildlife Service, U.S., Bureau of Land Management, and university and non-profit groups to assess stream restorations in Interior Alaska using the novel Stream Quantification Tool. We will report on the functional lift, or suite of ecological services provided by restoration relative to unrestored conditions.	Stream restoration is a burgeoning industry in Alaska for restoring and remediating aquatic environmental degradation. However, assessment of the effectiveness of stream restoration techniques and the tools used to monitor streams is lacking. This project will work in collaboration with the U.S. Fish and Wildlife Service, U.S., Bureau of Land Management, and university and non-profit groups to assess stream restorations in Interior Alaska using the novel Stream Quantification Tool. We will report on the functional lift, or suite of ecological services provided by restoration relative to unrestored conditions.
Wildfire effects on aquatic biodiversity measured using eDNA	September 2023	Boreal ecosystems in Alaska are at the forefront of global climate change, and one of the primary impacts of this changing climate is an increase in the prevalence, magnitude, and severity of wildfire. Although less headline-grabbing than stories of burned forests, freshwaters also experience wildfire effects through mudslides and other sedimentation increases, temperature changes due to lack of shading, nutrient and pH effects from ash inputs, and alterations to stream hydrology and geomorphology due to watershed change. Understanding the biodiversity of fish and macroinvertebrates is essential to a quantitative appraisal of freshwater conditions, including assessment of ecosystem impacts to disturbance such as wildfire. Nonetheless, such assessment is generally lacking in broad swaths of Alaska. The advent of environmental DNA (eDNA) metabarcoding using next-generation sequencing methods holds exciting potential for broad-scale assessments of freshwater biodiversity in such situations. In this study, I propose to use eDNA metabarcoding samples, including primers developed specifically for the quantification of aquatic macroinvertebrates and fish, to assess wildfire influence on freshwater biodiversity at a regional scale within Interior Alaska.	Boreal ecosystems in Alaska are at the forefront of global climate change, and one of the primary impacts of this changing climate is an increase in the prevalence, magnitude, and severity of wildfire. Although less headline-grabbing than stories of burned forests, freshwaters also experience wildfire effects through mudslides and other sedimentation increases, temperature changes due to lack of shading, nutrient and pH effects from ash inputs, and alterations to stream hydrology and geomorphology due to watershed change. Understanding the biodiversity of fish and macroinvertebrates is essential to a quantitative appraisal of freshwater conditions, including assessment of ecosystem impacts to disturbance such as wildfire. Nonetheless, such assessment is generally lacking in broad swaths of Alaska. The advent of environmental DNA (eDNA) metabarcoding using next-generation sequencing methods holds exciting potential for broad-scale assessments of freshwater biodiversity in such situations. In this study, I propose to use eDNA metabarcoding samples, including primers developed specifically for the quantification of aquatic macroinvertebrates and fish, to assess wildfire influence on freshwater biodiversity at a regional scale within Interior Alaska.
Analysis of lake water quality data in Southwest Alaska National Parks	August 2024	This project will assess the status and trends of water quality in lakes within the Southwest Alaska Inventory and Monitoring Network (SWAN). This will be a synthesis project, with little or no new data collection anticipated directly as part of this project. These data originate from within SWAN national parks managed by the U.S. National Park Service, with collection carried out by NPS staff and representing up to a 10-year dataset, with lakes re-sampled semi-regularly across years. Research under this award will be guided by the following questions: 1) To what extent do lakes, or samples within lakes, group along an identifiable gradient, and what environmental or other conditions drive these groupings? 2) Are there apparent intra- and interannual trends or trajectories of water quality change within and across lakes? 3) Can future trends be forecast across lakes and interpolated within lakes given predicted future environmental conditions, using the multi-lake network to infer conditions even in cases where data are sparse?	This project will assess the status and trends of water quality in lakes within the Southwest Alaska Inventory and Monitoring Network (SWAN). This will be a synthesis project, with little or no new data collection anticipated directly as part of this project. These data originate from within SWAN national parks managed by the U.S. National Park Service, with collection carried out by NPS staff and representing up to a 10-year dataset, with lakes re-sampled semi-regularly across years. Research under this award will be guided by the following questions: 1) To what extent do lakes, or samples within lakes, group along an identifiable gradient, and what environmental or other conditions drive these groupings? 2) Are there apparent intra- and interannual trends or trajectories of water quality change within and across lakes? 3) Can future trends be forecast across lakes and interpolated within lakes given predicted future environmental conditions, using the multi-lake network to infer conditions even in cases where data are sparse?
Small Mammal Disease Dynamics in Interior Alaska	December 2025	Disease prevalence in small mammals is largely unknown in Alaska, with little monitoring occurring throughout the state. The potential for disease transmission between small mammals and domestic animals is high, and the subsequent potential for transmission to humans poses a legitimate health concern in Alaska. We are surveying small mammal populations near concentrations of domestic animals (sled dogs and livestock) to determine if disease prevalence in small mammals is affected by proximity and exposure to domestic animals. This will be the first coordinate survey effort for small mammal disease exposure in Alaska.	Disease prevalence in small mammals is largely unknown in Alaska, with little monitoring occurring throughout the state. The potential for disease transmission between small mammals and domestic animals is high, and the subsequent potential for transmission to humans poses a legitimate health concern in Alaska. We are surveying small mammal populations near concentrations of domestic animals (sled dogs and livestock) to determine if disease prevalence in small mammals is affected by proximity and exposure to domestic animals. This will be the first coordinate survey effort for small mammal disease exposure in Alaska.
Food web dynamics in arctic streams	September 2013	Identify key prey types and their sources in Arctic stream food webs. Measure prey utilization by fishes in selected aquatic habitats.	None
Developing ecological escapement goals for Pacific salmon: Role of marine derived nutrients in the health and sustainability of resident and anadromous fishes of the Yukon drainage	December 2010	The objectives of this study are to determine: 1) the biological extent of marine-derived nutrients (MDN) presence in riverine ecosystems (e.g., measure how much MDN are sequestered by fishes and other biota), 2) the magnitude of MDN influence across broad geographic scales (e.g., initially across the Yukon Delta, Yukon Flats, and into Canada within the Yukon River drainage), 3) if certain fishes benefit from the spawning runs of others (e.g., do chinook juveniles and resident fishes benefit from chum runs?), 4) roles and significance of MDN in fish health, and 5) if there is a spawner density-dependent response by consumers (e.g., do more spawners equate to greater food web effects?). Investigators predict that: 1) MDN are critically important to riverine biota across broad geographic scales, 2) fish species benefit from the spawning runs of others, 3) MDN improves fish health (e.g., fish condition, and lipid and fatty acid content), and 4) there is a density-dependent response (fish in habitats with higher spawner densities benefit more than those in habitats with fewer spawners). Data from this study will contribute to the long-term goal of constructing ecological escapement models that predict the levels of salmon returns necessary for supporting fish, wildlife and plant species, and ecosystem sustainability in Alaska.	None
The effects of wetland management and landscape characteristics on black tern and associated species breeding colonies	December 2010	Information needs identified by the USFWS include identification and inventory of existing colonies and breeding habitat, and the effects of wetland management and restoration; development of population monitoring protocols will also be addressed. The objectives of this study are to: (1) evaluate information collected for the USFWS Species Assessment for its potential to determine habitat availability across the breeding range of Black Terns; Researchers will use a subsample of wetlands within the Black Tern breeding range to: (2) inventory existing Black Tern colonies; (3) inventory and assess large-scale habitat characteristics; (4) make preliminary evaluations of the effects of wetland management and restoration on breeding populations of this species. Researchers will use information collected during this study to assist in the development of standardized monitoring protocol.	None
Diet of glaucous gulls on Alaska's north Slope	September 2011	Describe Glaucous Gull diet, including spatial and temporal variation, during the breeding season on Alaska's North Slope. 2) Quantify relative gull consumption of anthropogenic foods and of prey species of concern. 3) Determine the effects of development on local gull reproductive output. 4) Evaluate the effect of diet on gull reproductive output.	None
Avian ecology in northern AK within a changing environment	August 2012	This project proposes to provide a framework in which to better understand the ecology, including habitat requirements, of northern Alaska's avian species. The overall goal of this project is to research the distribution, abundance and life history of avian species of concern in northern Alaska. Task 1: Initial work will focus on Smith's Longspurs in the Arctic Refuge with the goal of expanding to other species and breeding areas in northern Alaska. Preliminary objectives include: - Refine methods to measure abundance and distribution of Smith's Longspurs. - Develop habitat-based models to predict the abundance and distribution of Smith's Longspurs. - Collect life history information to better understand breeding parameters such as nesting chronology, nest success/survival, habitat preferences and nest site requirements. Further research is needed to enhance understanding of the factors determining spatial and temporal use of coastal habitats within the Arctic Refuge. Information about how, why, when and where shorebirds are using these habitats will allow managers to address protection for shorebirds and other coastal resources, and will direct mitigation efforts in response to climate change and direct anthropogenic stressors. This study will fund a PhD student through UAF to: a) assess abundance, distribution, and species composition of shorebirds staging in coastal areas prior to fall migration, b-c) quantify movement patterns (both within the staging period and relative to breeding location) and residency times of pre-migratory shorebirds at staging sites, and d) examine physical characteristics and quantify forage for comparisons among staging areas on the coast. [Note, Task 2 will be conducted pending task 1 results and determination of available funding by additional sources]	None
At-Sea Location of Juvenile and First-Year King Eiders, dated Aporil 3, 2008	December 2011	The goal of this study is to test the hypothesis that population level effects or changes in fish condition can be described relative to thermal habitat and coastal currents, derived from optical and thermal infrared remote sensing data from the nearshore area of the Beaufort Sea. Several objectives make up this larger goal and need to be accomplished to fulfill the intent of this study: 1) biological sampling of fish; 2) collection of thermal data through remote sensing; and 3) the analysis and synthesis of the biological data with remote sensing data	None
Partitioning soil respiration along moisture gradients in Alaskan landscapes	August 2012	Our objective is to develop a set of physical (temperature, moisture, radiation) and biogeochemical (e.g. C flux and quality) data that will facilitate accurate models of C exchange in boreal landscapes.	None
Carbon responses along moisture gradients in Alaskan landscapes	June 2010	The interaction of large wildfires with permafrost is of central concern because of longer growing seasons and increased drought. The investigators hypothesize that fire may act as a trigger to the rapid degradation of permafrost in Interior Alaska. How carbon responds to changing climate and fire will affect carbon dynamics will likely depend on interactions with soil moisture, which is quite variable in Alaskan landscapes. In this study they are assessing carbon reserves and their interaction with fire and permafrost along soil moisture gradients in Alaskan landscapes. The investigators are currently developing a new suite of ecosystem modeling tools which are capable of simulating the linkages between fire, permafrost degradation and ecosystem dynamics. These models require robust sets of data that can be used to parameterize these models as well as to test their limitations and utility. The main task to accomplish the above objective is to develop a set of physical (temperature, moisture, radiation) and biogeochemical (e.g. C flux and quality) data that will facilitate accurate models of C exchange in boreal landscapes.	None
Assessing the role of deep soil organic carbon in interior Alaska: Data, models, and spatial/temporal dynamics	January 2011	Develop a more complete understanding of the carbon dynamics of northern high-latitude ecosystems at several scales: plot, landscape, region (e.g., Interior Alaska), pan-boreal (Alaska, Canada, Russia, and Scandinavia). This study will provide a best-practices spatial assessment of soil carbon in Alaska that can be used by a number of modeling and experimental studies that address the vulnerability and fate of soil carbon.	None
Monitoring the body condition of caribou in late winter: developing and evaluating a "hands-off" approach	June 2010	This pilot study will develop and evaluate the noninvasive technique derived from captive trials for assessing body condition of wild populations of caribou in Alaska. These data are also part of larger project comparing body condition of Rangifer spp. across North America which will provide baselines for regional and international monitoring programs. Future work will examine variation in demography (e.g., age and sex structure), resource availability and quality, and reproductive success in relation to changes in body condition at the individual and population levels.	None
Projected effects of climate-induced vegetation changes on caribou (Rangifer tarandus) energetics in northern Alaska	September 2016	1) Employ the existing DVM and a suite of climate scenarios (present to 2100; IPCC, 2007) to a) simulate possible future changes in the seasonal biomass of aboveground non-woody tissue of various plant functional types (e.g. lichen, sedge, Salix) that are accessible to Rangifer; b) match DVM output plant functional type seasonal biomass to input functional types used in the CARMODEL; c) match output summary seasons (currently months) to the input seasons of the CARMODEL (e.g. calving, post-calving, late summer); d) explicitly track projected changes in growing degree days (GDD) and use the GDD:digestibility relationships developed by Finstad (2008) to project the effects of warming on seasonal forage quality by plant functional type. 2) Use the projected changes in biomass and digestibility of caribou forages through time (present to 2100) derived from the DVM in (1) to estimate the implications of this suite of climate scenarios on the seasonal patterns of fat and protein deposition and use by caribou for maintenance and growth throughout the year. 3) Compare and contrast the implications of climate-induced changes in forage biomass and quality on fat and protein dynamics in two groups of caribou with characteristically different diets at calving: a) caribou that calve in the wetter portions of the coastal plain (Central Arctic, Teshekpuk), and b) caribou that calve in uplands and drier portions of the coastal plain (Western Arctic, Porcupine). 4) Collect supplemental estimates of diet and forage quality for herds as necessary. Summer diets are relatively well known for all herds. Fall, and early and late winter-spring diets are relatively unknown and will require field collection of fecal pellets and microhistological analyses. Some seasonal forage will require nutrient analyses to establish baseline conditions.	None
Magnitude and rates of lake drying in wetlands on National Wildlife Refuges in AK	January 2011	Refuge wetlands support millions of waterfowl and shorebirds and produce hundreds of thousands of ducklings, goslings and shorebirds annually that have been recovered in nearly all states, 8 Canadian provinces and other countries. Climate change could alter the fundamental nature of Alaskan refuges. Riordan (2005) found significant loss of lakes in wetlands on several Interior Alaska refuges; however, the geographic scope and magnitude of lake losses in Alaskan refuges have not been described. Magnitude and rates of lake drying have not been described across an E-W gradient (e.g., Yukon Delta - Tetlin NWRs) or N-S gradient (e.g., Izembek - Arctic NWRs). Finally, understanding the amount and rate of lake losses in wetlands across Alaska refuges will be essential to predicting potential effects on the distribution, abundance and productivity of waterbirds, particularly ducks and geese. Crucial proactive first steps toward understanding this potential problem are to: 1) fully characterize the heterogeneity in the magnitude and rate of lake drying in Alaskan Refuge wetlands, 2) identify differential characteristics of lakes that are drying and those that are not, 3) estimate whether change in total surface water area in wetlands (open and closed-basin lakes) occurs at the same rate of decline as for closed-basin lakes, and 4) assess the influence of fire on lake drying in refuge wetlands. Tasks: 1. Complete a statewide estimate of the heterogeneity in closed-basin lake drying initiated by Riordan (2005) 2. Estimate the rate of change in total surface water and compare this to the rates of change documented for closed-basin lakes in National Wildlife Refuges during the same time period, 1950-2002 (see Riordan 2005). 3. Document factors associated with variability in the magnitude and rate of drying among closed-basin lakes in study areas in National Wildlife Refuges (see Riordan 2005). Document the effects of wildfire on open water dynamics in refuge wetlands.	None
Implications of climate variability for optimal and adaptive management in wetland systems	January 2012	1) Formally estimate the multi-scale temporal and spatial variance structure in a suite of putatively climate driven habitat metrics (e.g. lake drying, river flow, flooding frequencies), emphasizing available legacy datasets from remote sensing, river gauges, and other pertinent sources; 2) Formally evaluate the implications of the variance in climate-driven habitat trends for optimal monitoring strategies and subsequent design of adaptive management programs, specifically addressing the spatial and temporal intensity of monitoring necessary to estimate whether populations have demonstrated biologically meaningful changes and management activities have been effective or not; 3) Collaboratively explore the implications of the variance in climate-driven habitat trends with two samples of refuges--one group from Region 7 and one group from Region 6--that differ in their a) emphasis on lacustrine/palustrine (Region 7) or riverine (Region 6) aquatic habitats for USFWS trust species and therefore b) their stakeholder interests, inherent environmental variability, degree of climate driven change, and available management actions. 4) Collaboratively explore within- and between-region assessments of the strategic implications of the variance in climate related habitat drivers to the management activities of long-term a) planning, b) budgeting, and c) selection of potential actionable management. [note: work on the attached proposal conducted by non-CRU Federal employees, such as USGS Jane Austen and USFWS personnel, will be conducted outside the purview of this RWO]	None
Implications of climate change for biodiversity in Yukon River Basin wetlands: Yukon Flats National Wildlife Refuge as a test case	May 2014	The overall goal of the biological component of the Yukon River Basin (YRB) science plan is to estimate the potential effects of climate induced lake change on terrestrial and aquatic species richness and abundance that is relevant to local and national users.	None
Factors Limiting Population Growth of Unhunted Dall’s Sheep	December 2025	Despite nearly a decade free of harvest pressure, sheep populations in northwest Alaska have not rebounded as anticipated. Identifying the factors that continue to repress these populations will aid in the general understanding of Dall sheep ecology and help inform how sheep populations, at the margins of their range, can be sustainably managed in the future. Determining the relative effects of these factors can assist managers in determining appropriate harvest seasons and bag limits and identifying critical landscape features and areas requisite to sheep’s continued presence in GMUs 23 and 26.<br><br>We will radio-collar approximately 20 sheep in each of two herds (De Long, Baird) in the fall/winter of 2023 and 2024. Mortality will be monitored via movement data and mortality sites will be visited as soon as possible to attempt to determine mortality cause. If possible, tissue samples will be collected for additional analysis. Health assessment will be conducted during capture and biological samples collect to analysis for disease, genetics, pregnancy, and nutritional limitation. Collared ewes will be radiotracked with fixed-wing aircraft weekly between May and June to determine lambing rates using the presence of a lamb at heel.<br><br>This study will be the first to quantify habitat use patterns, survival rates, and health of sheep in these herds. This project will provide ADFG with the information needed in order to manage both of these sheep herds in order to improve population trajectory.	Despite nearly a decade free of harvest pressure, sheep populations in northwest Alaska have not rebounded as anticipated. Identifying the factors that continue to repress these populations will aid in the general understanding of Dall sheep ecology and help inform how sheep populations, at the margins of their range, can be sustainably managed in the future. Determining the relative effects of these factors can assist managers in determining appropriate harvest seasons and bag limits and identifying critical landscape features and areas requisite to sheep’s continued presence in GMUs 23 and 26.<br><br>We will radio-collar approximately 20 sheep in each of two herds (De Long, Baird) in the fall/winter of 2023 and 2024. Mortality will be monitored via movement data and mortality sites will be visited as soon as possible to attempt to determine mortality cause. If possible, tissue samples will be collected for additional analysis. Health assessment will be conducted during capture and biological samples collect to analysis for disease, genetics, pregnancy, and nutritional limitation. Collared ewes will be radiotracked with fixed-wing aircraft weekly between May and June to determine lambing rates using the presence of a lamb at heel.<br><br>This study will be the first to quantify habitat use patterns, survival rates, and health of sheep in these herds. This project will provide ADFG with the information needed in order to manage both of these sheep herds in order to improve population trajectory.
Synthesizing Ungulate Movement and Migrations Across Alaska	December 2025	Ungulate movements and migrations are crucial behavioral processes that have a direct impact on harvest and habitat management programs. The availability of migratory ungulates to harvest has large implications for subsistence harvest programs, and the identification of migration corridors and habitat factors associated with movements and movement barriers is a challenging but critical question in the face of changing environmental systems.<br><br>Using monitoring data from caribou and moose populations from throughout Alaska, this project will identify unifying factors related to ungulate migrations while simultaneously providing individual herd managers with the information and tools needed to appropriately manage ungulates. Existing GPS and satellite telemetry data from multiple caribou herds throughout Alaska (Western Arctic, Teshekpuk, Mulchatna, Nelchina, Fortymile) will be used to parameterize movement models that will provide a mechanistic understanding of migration paths and cues, while existing telemetry data from moose in multiple Game Management Units will be used to parameterize models to help identify seasonal movements and corridors.<br><br>Aside from improving our understanding of ungulate migrations across Alaska, this project will develop a unified data flow and analytical framework for the various collaring efforts that are ongoing throughout Alaska. The wide variety of collar manufacturers, data streams, fix rates, and data quality have thus made it challenging to develop unified analyses or data management protocols, and doing so will help improve the inference gained from myriad telemetry efforts but also decrease the turnaround time required to use these data to provide useful information to wildlife managers.	Ungulate movements and migrations are crucial behavioral processes that have a direct impact on harvest and habitat management programs. The availability of migratory ungulates to harvest has large implications for subsistence harvest programs, and the identification of migration corridors and habitat factors associated with movements and movement barriers is a challenging but critical question in the face of changing environmental systems.<br><br>Using monitoring data from caribou and moose populations from throughout Alaska, this project will identify unifying factors related to ungulate migrations while simultaneously providing individual herd managers with the information and tools needed to appropriately manage ungulates. Existing GPS and satellite telemetry data from multiple caribou herds throughout Alaska (Western Arctic, Teshekpuk, Mulchatna, Nelchina, Fortymile) will be used to parameterize movement models that will provide a mechanistic understanding of migration paths and cues, while existing telemetry data from moose in multiple Game Management Units will be used to parameterize models to help identify seasonal movements and corridors.<br> <br>Aside from improving our understanding of ungulate migrations across Alaska, this project will develop a unified data flow and analytical framework for the various collaring efforts that are ongoing throughout Alaska. The wide variety of collar manufacturers, data streams, fix rates, and data quality have thus made it challenging to develop unified analyses or data management protocols, and doing so will help improve the inference gained from myriad telemetry efforts but also decrease the turnaround time required to use these data to provide useful information to wildlife managers.
Deer Density Estimation and Habitat Use in Southeast Alaska	December 2024	Sitka black-tailed deer are an important game species in southeast Alaska, and are a critical driver of predator population dynamics in the region. On Prince of Wales Island, where habitat management for deer is a major land use, it is critical to understand where deer occur on the landscape and how they respond to timber harvest. Moreover, our understanding of how predators (e.g. wolves) shape deer distribution on the landscape could have important implications for harvest and habitat management. <br><br>By utilizing an existing/ongoing deployment of remote cameras across Prince of Wales Island for wolf monitoring, we will develop single-season and multi-species occupancy models for black-tailed deer that quantify occupancy rates across the landscape and how these rates are affected by both habitat conditions and by the presence of predators. Additionally, we hope to be able to relate deer distribution and occupancy to in-situ estimates of snow depth calculated from remote camera images. Lastly, we will evaluate the utility of this sampling framework for estimating deer density across the entire island.<br><br>Monitoring of game species is exceptionally challenging in southeast Alaska, and the potential for multi-species monitoring frameworks could provide a cost-effective mechanism for assisting with harvest and/or habitat management decisions. This study will build upon previous research that has demonstrated that deer respond to habitat management in terms of browsing pressure by also linking overall occupancy rates and interactions with predators to habitat conditions.	Sitka black-tailed deer are an important game species in southeast Alaska, and are a critical driver of predator population dynamics in the region. On Prince of Wales Island, where habitat management for deer is a major land use, it is critical to understand where deer occur on the landscape and how they respond to timber harvest. Moreover, our understanding of how predators (e.g. wolves) shape deer distribution on the landscape could have important implications for harvest and habitat management. <br><br>By utilizing an existing/ongoing deployment of remote cameras across Prince of Wales Island for wolf monitoring, we will develop single-season and multi-species occupancy models for black-tailed deer that quantify occupancy rates across the landscape and how these rates are affected by both habitat conditions and by the presence of predators. Additionally, we hope to be able to relate deer distribution and occupancy to in-situ estimates of snow depth calculated from remote camera images. Lastly, we will evaluate the utility of this sampling framework for estimating deer density across the entire island.<br><br>Monitoring of game species is exceptionally challenging in southeast Alaska, and the potential for multi-species monitoring frameworks could provide a cost-effective mechanism for assisting with harvest and/or habitat management decisions. This study will build upon previous research that has demonstrated that deer respond to habitat management in terms of browsing pressure by also linking overall occupancy rates and interactions with predators to habitat conditions.
Effects of Human Visitation on Bear Activity	December 2024	The impacts of recreational activity on wildlife can be substantial. In areas with high concentrations of humans and wildlife, there may be high potential for human activity to negatively affect wildlife. At the Anan Observatory, near Wrangell, Alaska, the USDA Forest Service recently renovated their viewing platform at a substantial cost to the ranger district. The Anan Observatory is a highly regulated bear viewing site in the Tongass National Forest, with visitation controlled through a permit system, however the construction of a larger viewing platform has led to calls for increasing the number of permits, and thus the human visitation rates.<br><br>We will use remote cameras deployed at the observatory and at the upper falls, an area off limits to recreational visitation approximately 0.5-km upstream, to quantify bear activity patterns during the tourist season during the summers of 2022, 2023, and 2024. We will use a combination of occupancy modeling and activity patterns analysis to determine if activity levels differ between the control area (upper falls) and the observatory, and if bear activity is related to hourly human visitation rates. We will also use long-term monitoring data from the observatory to determine if chronic human visitation has affected bear feeding activity.<br> <br>The results of this study will provide the USDA Forest Service with important information that they can use to determine if increased permitting will have deleterious effects on bears at Anan Observatory. There is substantial financial pressure surrounding the management of the observatory, with a number of guiding services operating out of the town of Wrangell, and their financial security is contingent on a long-term management plan that maximizes the number of visitors without having any adverse effects on wildlife.	The impacts of recreational activity on wildlife can be substantial. In areas with high concentrations of humans and wildlife, there may be high potential for human activity to negatively affect wildlife. At the Anan Observatory, near Wrangell, Alaska, the USDA Forest Service recently renovated their viewing platform at a substantial cost to the ranger district. The Anan Observatory is a highly regulated bear viewing site in the Tongass National Forest, with visitation controlled through a permit system, however the construction of a larger viewing platform has led to calls for increasing the number of permits, and thus the human visitation rates.<br><br>We will use remote cameras deployed at the observatory and at the upper falls, an area off limits to recreational visitation approximately 0.5-km upstream, to quantify bear activity patterns during the tourist season during the summers of 2022, 2023, and 2024. We will use a combination of occupancy modeling and activity patterns analysis to determine if activity levels differ between the control area (upper falls) and the observatory, and if bear activity is related to hourly human visitation rates. We will also use long-term monitoring data from the observatory to determine if chronic human visitation has affected bear feeding activity.<br> <br>The results of this study will provide the USDA Forest Service with important information that they can use to determine if increased permitting will have deleterious effects on bears at Anan Observatory. There is substantial financial pressure surrounding the management of the observatory, with a number of guiding services operating out of the town of Wrangell, and their financial security is contingent on a long-term management plan that maximizes the number of visitors without having any adverse effects on wildlife.
Salmon habitat and shoreline vulnerability to recreational boat wakes in Big Lake, Alaska	September 2024	The Matanuska-Susitna Borough, in south-central Alaska, implements a successful cost share program to restore shorelines along freshwaters. However, landowners are concerned that an increase in recreational boating to create large wakes for jet skis and other watersports are undercutting these efforts, leading to increased erosion and potential sedimentation on vulnerable salmon habitat. This research aims to quantify the extent of this potential issue, both in terms of bank erosion and effects on salmon egg-laying habitat. It will inform potential future management decisions to limit ballast boat use for wake generation, and identify the shorelines and underwater habitats where implementing such actions might be most important for conservation. Key partners on the project include the U.S. Fish and Wildlife Service and the Alaska Department of Fish and Game, as well as the Alaska Department of Environmental Conservation and private landowners who implement the cost-share program. Results of this research will yield a model of shoreline and salmon egg-laying habitat vulnerability. Presentations to stakeholders are also anticipated as part of the management and decision-making process.	The Matanuska-Susitna Borough, in south-central Alaska, implements a successful cost share program to restore shorelines along freshwaters. However, landowners are concerned that an increase in recreational boating to create large wakes for jet skis and other watersports are undercutting these efforts, leading to increased erosion and potential sedimentation on vulnerable salmon habitat. This research aims to quantify the extent of this potential issue, both in terms of bank erosion and effects on salmon egg-laying habitat. It will inform potential future management decisions to limit ballast boat use for wake generation, and identify the shorelines and underwater habitats where implementing such actions might be most important for conservation. Key partners on the project include the U.S. Fish and Wildlife Service and the Alaska Department of Fish and Game, as well as the Alaska Department of Environmental Conservation and private landowners who implement the cost-share program. Results of this research will yield a model of shoreline and salmon egg-laying habitat vulnerability. Presentations to stakeholders are also anticipated as part of the management and decision-making process.
Central Alaska aquatic inventory & monitoring data synthesis	June 2027	The purpose of this award is to assess the status and trends of freshwater communities and habitats in streams on Alaskan public lands utilizing a long-term water quality dataset. These data originate from within central Alaska national parks managed by the U.S. National Park Service as well as other lands in the region managed by the U.S. Bureau of Land Management. Research under this award will be guided by the following questions: To what extent can sites across Alaskan public lands be classified meaningfully based on a suite of shared environmental conditions, and do these classes, in turn, contain clearly defined ecological communities? How are species and habitat distributions altered across Alaskan public lands based on habitat conditions and expected environmental shifts under climate change or human use such as mining, and are certain ecological communities or habitats at particularly high risk of decline?	Streams and rivers on public lands in central Alaska are subject to acute and increasing ecological stress from climate change and in-stream mining. However, long-term trends in water quality and biomonitoring-relevant species are rarely assessed to determine how these stressors are affecting the ecological function of these aquatic habitats. The project is a collaboration of researchers and partners within the Department of the Interior, including the USGS, National Park Service, and Bureau of Land Management. Data synthesis will be aimed at delivering results that facilitate prediction of habitat and species population change as a result of ecological stressors in these central Alaskan freshwaters.
Woody debris export to large rivers following wildfire	September 2022	Large woody debris (LWD) in Interior Alaska provides fish habitat and serves as a human fuel source while also posing a danger for river navigation and infrastructure. However, there is limited understanding of the extent to which wildfire may affect recruitment of LWD, especially into larger rivers. Because wildfire risk and frequency are increasing, understanding its impacts on LWD recruitment into rivers is becoming more important as a freshwater management concern. In this study I will quantify the magnitude of LWD export out of smaller streams into large rivers in Interior Alaska and explore how this recruitment is affected by wildfire. The results of this study will underscore how fish habitat and other factors associated with LWD may change as Interior Alaska experiences more wildfire.	Large woody debris (LWD) in Interior Alaska provides fish habitat and serves as a human fuel source while also posing a danger for river navigation and infrastructure. However, there is limited understanding of the extent to which wildfire may affect recruitment of LWD, especially into larger rivers. Because wildfire risk and frequency are increasing, understanding its impacts on LWD recruitment into rivers is becoming more important as a freshwater management concern. In this study I will quantify the magnitude of LWD export out of smaller streams into large rivers in Interior Alaska and explore how this recruitment is affected by wildfire. I am developing collaborations with the U.S. Fish and Wildlife Service and a local Alaska Native organization, the Tanana Chiefs Conference to guide the research and to deliver more meaningful results. Broadly, the results of this study will underscore how fish habitat and other factors associated with LWD may change as Interior Alaska experiences more wildfire.
Wildlife Resource Management on BLM Lands in Alaska	September 2024	The Wildlife Program of the Bureau of Land Management is responsible for wildlife and habitat maintenance, conservation, and restoration throughout much of Alaska. This work is often conducted in cooperation with federal and state partners. Much of the work that BLM has conducted in recent years in interior Alaska has focused on habitat management and wildlife monitoring with a focus on a variety of wildlife species ranging from ungulates to raptors. This work has led to a variety of existing and current data streams that contain valuable information for management planning. In collaboration with BLM wildlife biologists are providing technical assistance for federal land management and research by developing a suite of geospatial coverages, queryable databases, analyses, and technical reports based on existing BLM inventory and monitoring programs to aid in the identification of trends in habitat conditions and wildlife populations. Specific products include 1) a spatially referenced database for long-term raptor monitoring in the Steese National Conservation Area, 2) a predictive model of caribou behavior based on activity patterns collected from satellite collars in the Fortymile caribou herd, 3) maps of seasonal movements and calving areas for moose in the White Mountains and Steese National Conservation Area, and 4) animations of caribou movements in relation to road access.	The Wildlife Program of the Bureau of Land Management is responsible for wildlife and habitat maintenance, conservation, and restoration throughout much of Alaska. This work is often conducted in cooperation with federal and state partners. Much of the work that BLM has conducted in recent years in interior Alaska has focused on habitat management and wildlife monitoring with a focus on a variety of wildlife species ranging from ungulates to raptors. This work has led to a variety of existing and current data streams that contain valuable information for management planning. In collaboration with BLM wildlife biologists are providing technical assistance for federal land management and research by developing a suite of geospatial coverages, queryable databases, analyses, and technical reports based on existing BLM inventory and monitoring programs to aid in the identification of trends in habitat conditions and wildlife populations. Specific products include 1) a spatially referenced database for long-term raptor monitoring in the Steese National Conservation Area, 2) a predictive model of caribou behavior based on activity patterns collected from satellite collars in the Fortymile caribou herd, 3) maps of seasonal movements and calving areas for moose in the White Mountains and Steese National Conservation Area, and 4) animations of caribou movements in relation to road access.
Moose Population Dynamics on the Seward Peninsula	April 2024	Moose populations in portions of the Seward Peninsula have declined substantially since the early 2000's. The mechanism for this decline is unknown, as 6-month old moose in this region are among the heaviest (and presumably least nutritionally stressed) in the state of Alaska, yet lose the highest proportion of body weight over-winter compared to other moose populations. In collaboration with the Alaska Department of Fish and Game, we will be using a combination of radio-telemetry, demographic surveys, and both in-situ and remote-sensing derived metrics of forage to better understand the causal mechanism behind these declines in moose abundance. Our ultimate objective is to identify management actions that could ultimately reverse these declines and improve moose harvest opportunities in the region.	Moose populations in portions of the Seward Peninsula have declined substantially since the early 2000's. The mechanism for this decline is unknown, as 6-month old moose in this region are among the heaviest (and presumably least nutritionally stressed) in the state of Alaska, yet lose the highest proportion of body weight over-winter compared to other moose populations. In collaboration with the Alaska Department of Fish and Game, we will be using a combination of radio-telemetry, demographic surveys, and both in-situ and remote-sensing derived metrics of forage to better understand the causal mechanism behind these declines in moose abundance. Our ultimate objective is to identify management actions that could ultimately reverse these declines and improve moose harvest opportunities in the region.
Evaluating Sources of Bias in Caribou Population Surveys	December 2022	Understanding how to efficiently monitor wildlife is critical for proper harvest and habitat management. Monitoring of caribou herds in Alaska is almost exclusively accomplished through aerial surveys conducted during the pre-calving season. These surveys rely on locating radio-marked animals in order to find large aggregations of caribou across the landscape and using photo-census techniques to estimate group size. These data are then used in a specific mark-recapture framework, known as a Rivest model, to generate estimates of unseen caribou and, thus, total herd size. However, this approach is likely sensitive to grouping behavior (i.e. the distribution of group sizes among the entire herd) and both the total number and distribution of radio collared animals throughout the herd. The degree to which these factors influence the precision and accuracy of caribou abundance estimates is unknown and could have substantial impacts on our understanding and resulting management of caribou herds. <br>We will use empirical data on observed group sizes and collar distribution from 11 aerial surveys of the Western Arctic Herd and 12 aerial surveys from the Teshekpuk herd conducted between 1984 and 2019 to parameterize a series of simulations to evaluate accuracy and precision of Rivest estimates. We will use a parametric bootstrapping approach to simulate 10,000 realizations of true population size, group size distribution, and collar distribution from which we will use empirical estimates of detection probabilities to randomly detect both marked (with collars) and unmarked (without collars) groups. We will then use these simulated surveys results in a Rivest framework to generate estimates of abundance that we will compare to true (simulated) abundance for bias and confidence interval coverage. <br>By identifying the effects of grouping behavior and sample size on the reliability of Rivest estimates we hope to improve survey approaches and resulting inferences. Understanding situations in which Rivest estimates may be unreliable could 1) reduce surveys efforts by eliminating potential surveys conducted under non-ideal circumstances, and 2) lead to improved sampling protocols by identifying optimal sampling situations. Because caribou populations are known to exhibit substantial fluctuations, it is critical that inferences regarding population dynamics be derived from reliable estimates of abundance through time.	Understanding how to efficiently monitor wildlife is critical for proper harvest and habitat management. Monitoring of caribou herds in Alaska is almost exclusively accomplished through aerial surveys conducted during the pre-calving season. These surveys rely on locating radio-marked animals in order to find large aggregations of caribou across the landscape and using photo-census techniques to estimate group size. These data are then used in a specific mark-recapture framework, known as a Rivest model, to generate estimates of unseen caribou and, thus, total herd size. However, this approach is likely sensitive to grouping behavior (i.e. the distribution of group sizes among the entire herd) and both the total number and distribution of radio collared animals throughout the herd. The degree to which these factors influence the precision and accuracy of caribou abundance estimates is unknown and could have substantial impacts on our understanding and resulting management of caribou herds. <br>We will use empirical data on observed group sizes and collar distribution from 11 aerial surveys of the Western Arctic Herd and 12 aerial surveys from the Teshekpuk herd conducted between 1984 and 2019 to parameterize a series of simulations to evaluate accuracy and precision of Rivest estimates. We will use a parametric bootstrapping approach to simulate 10,000 realizations of true population size, group size distribution, and collar distribution from which we will use empirical estimates of detection probabilities to randomly detect both marked (with collars) and unmarked (without collars) groups. We will then use these simulated surveys results in a Rivest framework to generate estimates of abundance that we will compare to true (simulated) abundance for bias and confidence interval coverage. <br>By identifying the effects of grouping behavior and sample size on the reliability of Rivest estimates we hope to improve survey approaches and resulting inferences. Understanding situations in which Rivest estimates may be unreliable could 1) reduce surveys efforts by eliminating potential surveys conducted under non-ideal circumstances, and 2) lead to improved sampling protocols by identifying optimal sampling situations. Because caribou populations are known to exhibit substantial fluctuations, it is critical that inferences regarding population dynamics be derived from reliable estimates of abundance through time.
Wolf Abundance Estimation in Southeast Alaska	December 2025	Wolves (Canis lupus ligoni) are a widespread carnivore in the temperate rain forests of southeastern Alaska. The areas in which wolves occur are characterized by rugged topography, closed canopy forests, and vast roadless areas. These factors make wolves exceptionally challenging to monitor. As an apex predator and a harvested species, wolves are among the most important species in the region in terms of management, yet the difficulties associated with monitoring wolves can hinder management actions. In this project we will be deploying an array of remote cameras throughout Prince of Wales Island to estimate wolf, black bear (Ursus americanus), and Sitka deer (Odocoileus hemionus sitkensis) densities using a combination of time-to-event and space-to-event modeling. This project will provide a framework for efficient and effective monitoring of these species throughout southeastern Alaska.	In southeastern Alaska wolves are an ecologically important species and are considered a game species, meaning that they are harvested. In this landscape, wolves are very challenging to monitor. This project is a collaboration among researchers at the Alaska Department of Fish and Game, Oklahoma State University, and the Alaska Cooperative Fish and Wildlife Research Unit. using remote cameras, we will develop a robust monitoring framework for wolves, their competitors, and their prey, that can be readily implemented throughout southeastern Alaska.
Downscaling recent and future freshwater processes across two large sub-Arctic watersheds: Assessing effects on freshwater habitat potential and productivity	May 2026	Forthcoming	Forthcoming
Beaver and wildfire interactions in interior Alaska boreal watersheds	December 2023	Wildfires are increasing in frequency, size, and severity across the boreal region of North America with significant effects on stream habitats for fish and wildlife communities. North American Beavers (<i>Castor canadensis</i>) are affected by and affect wildfires and are known to alter stream dynamics which impact organisms in and around those streams. Due to this, beavers could potentially act as a mechanism to magnify or reduce the effects of wildfires on aquatic systems with implications for ecological resilience and vulnerability in light of escalating wildfire regimes. Further, Alaska’s boreal region has diverse fisheries which are culturally and economically important and depend on the availability and suitability of freshwater habitats. Since freshwater habitat characteristics are driven by wildfire disturbance and beaver activities, understanding beaver/fire interactions is an important step to promote long-term sustainability of boreal fisheries. We are collaborating with the University of Alaska Fairbanks, USGS, U.S. Department of Defense, and the Alaska Fire Science Consortium to investigate this topic. The aim of our project is to develop models that include, 1) a spatially explicit model of beaver dam abundance and extent related to wildfire history, and 2) a habitat suitability model for Arctic Grayling (<i>Thymallus arcticus</i>); results will be used to estimate impacts of physical habitat changes on boreal fish species. Although model output can be used as stand-alone products for fire/fish/wildlife management decisions, our results will also be integrated into broader modeling efforts to assess the vulnerability of boreal ecosystems to changing climate and wildfire regimes.	Wildfires are increasing in frequency, size, and severity across the boreal region of North America with significant effects on stream habitats for fish and wildlife communities. North American Beavers (<i>Castor canadensis</i>) are affected by and affect wildfires and are known to alter stream dynamics which impact organisms in and around those streams. Due to this, beavers could potentially act as a mechanism to magnify or reduce the effects of wildfires on aquatic systems with implications for ecological resilience and vulnerability in light of escalating wildfire regimes. Further, Alaska’s boreal region has diverse fisheries which are culturally and economically important and depend on the availability and suitability of freshwater habitats. Since freshwater habitat characteristics are driven by wildfire disturbance and beaver activities, understanding beaver/fire interactions is an important step to promote long-term sustainability of boreal fisheries. We are collaborating with the University of Alaska Fairbanks, USGS, U.S. Department of Defense, and the Alaska Fire Science Consortium to investigate this topic. The aim of our project is to develop models that include, 1) a spatially explicit model of beaver dam abundance and extent related to wildfire history, and 2) a habitat suitability model for Arctic Grayling (<i>Thymallus arcticus</i>); results will be used to estimate impacts of physical habitat changes on boreal fish species. Although model output can be used as stand-alone products for fire/fish/wildlife management decisions, our results will also be integrated into broader modeling efforts to assess the vulnerability of boreal ecosystems to changing climate and wildfire regimes.
Wolf-Caribou Interactions in the Fortymile Caribou Herd	April 2024	We are evaluating the interactions of wolves and migratory caribou in the Fortymile herd. Using detailed information from GPS collared wolves and caribou, we are evaluating the relative influence of habitat conditions on seasonal movements and predator-prey dynamics. Additionally, we are evaluating the extent to which caribou movements affect wolf distribution on the landscape during aerial surveys in order to assess the potential for bias in population estimates.	We are evaluating the interactions of wolves and migratory caribou in the Fortymile herd. Using detailed information from GPS collared wolves and caribou, we are evaluating the relative influence of habitat conditions on seasonal movements and predator-prey dynamics. Additionally, we are evaluating the extent to which caribou movements affect wolf distribution on the landscape during aerial surveys in order to assess the potential for bias in population estimates.
Physiological Performance of Native and Invasive Northern Pike: Implications for Barrier Design in Invaded Systems	December 2022	Northern Pike are an important native fish species north and west of the Alaska Mountain Range, but illegal introductions and the natural spread of pike have led to thriving invasive populations in Southcentral Alaska where they are predating on native or costly stocked salmon and trout. Although methods to remove pike in Alaska (e.g., rotenone and gillnetting) are effective under certain conditions, alternatives are needed in the greater Cook Inlet region where the risk that pike will reinvade after removal is high due to abundant and interconnected lakes and river systems. The placement of short waterfall barriers may be a potential option to prevent pike from reinvading salmon habitat. First, it is essential to determine the maximum leaping heights and swimming speeds of pike to then confidently design and test such barriers in the field. The objective of this study is to determine the maximum leaping heights, swimming speeds, and swimming endurance of pike, and how a variety of factors affect these physiological end-points in pike. We will collect pike from Fort Peck Reservoir in Montana, transport them to the Bozeman Fish Technology Center, and run leaping trials using an adjustable waterfall apparatus and swimming trials using both a swim tunnel and open channel flume. We will quantify how waterfall height, plunge pool depth, water temperature, fish size, and fish condition affect leaping abilities, and quantify how the latter three affect swimming speed and endurance maximums. Based on the literature, we expect to find that moderately sized pike will be the most successful at ascending the most difficult waterfall conditions (high waterfall heights with shallow pool depths), and water temperature will increase both leaping and swimming performance, while low fish condition will lead to reduced leaping and swimming performance. We will determine waterfall heights, pool depths, and water velocities that will both aerobically exhaust and prevent ascent of barriers by the most high-performing pike included in our trials. The results of this multi-experiment study will provide waterfall barrier parameters that theoretically will exhaust and prevent pike movement upstream. These specifications will be used to design and test barriers against invasive pike movement in the southcentral region to determine if they are a viable management option for pike in Alaska. If successful, the barrier designs can be modified and implemented in similar areas to target invasive pike while reducing impacts on native species.	Northern Pike are an important native fish species north and west of the Alaska Mountain Range, but illegal introductions and the natural spread of pike have led to thriving invasive populations in Southcentral Alaska where they are predating on native or costly stocked salmon and trout. Although methods to remove pike in Alaska (e.g., rotenone and gillnetting) are effective under certain conditions, alternatives are needed in the greater Cook Inlet region where the risk that pike will reinvade after removal is high due to abundant and interconnected lakes and river systems. The placement of short waterfall barriers may be a potential option to prevent pike from reinvading salmon habitat. First, it is essential to determine the maximum leaping heights and swimming speeds of pike to then confidently design and test such barriers in the field. The objective of this study is to determine the maximum leaping heights, swimming speeds, and swimming endurance of pike, and how a variety of factors affect these physiological end-points in pike. We will collect pike from Fort Peck Reservoir in Montana, transport them to the Bozeman Fish Technology Center, and run leaping trials using an adjustable waterfall apparatus and swimming trials using both a swim tunnel and open channel flume. We will quantify how waterfall height, plunge pool depth, water temperature, fish size, and fish condition affect leaping abilities, and quantify how the latter three affect swimming speed and endurance maximums. Based on the literature, we expect to find that moderately sized pike will be the most successful at ascending the most difficult waterfall conditions (high waterfall heights with shallow pool depths), and water temperature will increase both leaping and swimming performance, while low fish condition will lead to reduced leaping and swimming performance. We will determine waterfall heights, pool depths, and water velocities that will both aerobically exhaust and prevent ascent of barriers by the most high-performing pike included in our trials. The results of this multi-experiment study will provide waterfall barrier parameters that theoretically will exhaust and prevent pike movement upstream. These specifications will be used to design and test barriers against invasive pike movement in the southcentral region to determine if they are a viable management option for pike in Alaska. If successful, the barrier designs can be modified and implemented in similar areas to target invasive pike while reducing impacts on native species.
Spawning Potential Ratio Assessment and Sensitivity Analysis Utilizing Estimates of Age at Maturity and Fecundity for Yelloweye Rockfish in Prince William Sound, Alaska	December 2020	Yelloweye Rockfish (Sebastes ruberrimus) are a highly-valued catch in recreational and commercial fisheries throughout Alaska and make up an important portion of the subsistence harvest in communities along the Gulf of Alaska. However, no management or assessment strategies exist for Yelloweye Rockfish in Prince William Sound, and to date no abundance estimates have been made. In this study, we intend to create a framework or threshold for harvest that can be applied to the management of Yelloweye Rockfish in Prince William Sound. This project is a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. The recreational harvest of Yelloweye Rockfish in Prince William Sound has been increasing for over 15 years. This harvest coupled with commercial removals could result in harvest level that is already exceeding a sustainable level. The project is directed towards the conservation of this specific species in a particular region where it has economic and cultural importance.	Yelloweye Rockfish (Sebastes ruberrimus) are a highly-valued catch in recreational and commercial fisheries throughout Alaska and make up an important portion of the subsistence harvest in communities along the Gulf of Alaska. However, no management or assessment strategies exist for Yelloweye Rockfish in Prince William Sound, and to date no abundance estimates have been made. In this study, we intend to create a framework or threshold for harvest that can be applied to the management of Yelloweye Rockfish in Prince William Sound. This project is a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. The recreational harvest of Yelloweye Rockfish in Prince William Sound has been increasing for over 15 years. This harvest coupled with commercial removals could result in harvest level that is already exceeding a sustainable level. The project is directed towards the conservation of this specific species in a particular region where it has economic and cultural importance.
Juvenile Chinook Salmon Movement, Overwinter Survival, and Outmigration Timing in the Chena River, Alaska	May 2021	Since 2001, Chinook Salmon returning to the Yukon River drainage have been designated as a stock of concern by the Alaska Board of Fisheries, and the Chena River supports one of the largest spawning stocks in the Alaskan portion of the Yukon River drainage. The Chena River juvenile Chinook Salmon study will provide a method to estimate the outmigration timing and magnitude of smolt production from several rearing areas on a highly utilized stock. These estimates will lead to a mark-recapture study design that generates accurate and precise estimates of smolt abundance and marine survival that can improve the stock assessment models that are used to establish sustainable escapement goals. This study is a collaboration between the University of Alaska Fairbanks and Alaska Department of Fish and Game. This sampling design will generate accurate and precise estimates of timing into and out of the rearing areas as well as relative overwinter survival. These improved models will aid managers when making decisions about the Yukon River’s important subsistence, commercial, and sport fisheries. The project will also identify and characterize important fall rearing areas for juvenile Chinook Salmon. All components of this study are identified by the Yukon River Panel as information needs/actions. In addition, the ADF&G Chinook Salmon Initiative has identified juvenile Chinook Salmon information as an information gap for the Yukon River and the Chena River is one of the largest contributors to this stock.	Since 2001, Chinook Salmon returning to the Yukon River drainage have been designated as a stock of concern by the Alaska Board of Fisheries, and the Chena River supports one of the largest spawning stocks in the Alaskan portion of the Yukon River drainage. The Chena River juvenile Chinook Salmon study will provide a method to estimate the outmigration timing and magnitude of smolt production from several rearing areas on a highly utilized stock. These estimates will lead to a mark-recapture study design that generates accurate and precise estimates of smolt abundance and marine survival that can improve the stock assessment models that are used to establish sustainable escapement goals. This study is a collaboration between the University of Alaska Fairbanks and Alaska Department of Fish and Game. This sampling design will generate accurate and precise estimates of timing into and out of the rearing areas as well as relative overwinter survival. These improved models will aid managers when making decisions about the Yukon River’s important subsistence, commercial, and sport fisheries. The project will also identify and characterize important fall rearing areas for juvenile Chinook Salmon. All components of this study are identified by the Yukon River Panel as information needs/actions. In addition, the ADF&G Chinook Salmon Initiative has identified juvenile Chinook Salmon information as an information gap for the Yukon River and the Chena River is one of the largest contributors to this stock.
Assessing the Resilience of Southeast Alaskan Salmon to Shifting Temperature and Discharge Regimes Using a Life-Cycle Perspective Coupled with Community-Based Monitoring	December 2021	Salmon that spawn and rear in southeast Alaska (SEAK) forest streams are critically important to the region’s economic vitality and cultural identity. Environmental changes that compromise the ability of these streams to support salmon could have dramatic consequences for the region. In particular, there is concern that climate change could undermine the capacity of SEAK streams to support productive fisheries via alterations to water temperature and flow regimes via impacts on multiple freshwater life stages. Although life-cycle models that track salmon growth and survival across life stages have been developed for many at-risk populations throughout the southern range of salmon there have been limited efforts to expand this approach northward to Alaska. This project is a collaboration among the University of Alaska Fairbanks, U.S. Forest Service, and the Southeast Alaska Watershed Coalition. Results of our life cycle modeling for pink, chum, and coho salmon will increase the shared body of knowledge of Alaska watershed ecosystems and enhance community resilience. By presenting user-friendly versions of life-cycle models and model results to southeast Alaska community members and project partners, the project will enhance communities’ capacity to prepare for and adapt to environmental change by: 1) sharing knowledge of which systems are likely at-risk to help communities decide whether and how to mitigate and/or adapt to changes to local salmon resources; 2) training communities to use and adapt the life cycle models themselves, while continuing to serve as a resource for communities using the models; and 3) supporting community adaptation planning efforts via a climate scenarios planning session.	Salmon that spawn and rear in southeast Alaska (SEAK) forest streams are critically important to the region’s economic vitality and cultural identity. Environmental changes that compromise the ability of these streams to support salmon could have dramatic consequences for the region. In particular, there is concern that climate change could undermine the capacity of SEAK streams to support productive fisheries via alterations to water temperature and flow regimes via impacts on multiple freshwater life stages. Although life-cycle models that track salmon growth and survival across life stages have been developed for many at-risk populations throughout the southern range of salmon there have been limited efforts to expand this approach northward to Alaska. This project is a collaboration among the University of Alaska Fairbanks, U.S. Forest Service, and the Southeast Alaska Watershed Coalition. Results of our life cycle modeling for pink, chum, and coho salmon will increase the shared body of knowledge of Alaska watershed ecosystems and enhance community resilience. By presenting user-friendly versions of life-cycle models and model results to southeast Alaska community members and project partners, the project will enhance communities’ capacity to prepare for and adapt to environmental change by: 1) sharing knowledge of which systems are likely at-risk to help communities decide whether and how to mitigate and/or adapt to changes to local salmon resources; 2) training communities to use and adapt the life cycle models themselves, while continuing to serve as a resource for communities using the models; and 3) supporting community adaptation planning efforts via a climate scenarios planning session.
Boreal Aquatic Ecosystem Vulnerability to Fire and Climate Change	May 2022	Fire is the dominant ecological disturbance process in boreal forests and is natural and widespread. However, fire frequency, size and severity are increasing in Alaska owing to climate warming. Interactions among fire, climate, permafrost, vegetation and hydrologic and watershed processes are poorly understood, yet critical for conservation and management of boreal aquatic habitats in a changing environment. Our research will address this challenge on and around DoD lands in interior Alaska by combining a detailed field experiment and measurements with an integrated suite of spatially- and temporally-explicit climate, terrestrial, and aquatic habitat models to better our understanding of the effects of fire and climate change on aquatic communities in interior Alaska boreal ecosystems. Collaborators include the University of Alaska Fairbanks, USGS, Alaska Department of Fish and Game, U.S. Fish and Wildlife Service, U.S. Department of Defense, and the Alaska Fire Science Consortium. The two primary goals of this project are to, 1) quantify fire effects on watershed- and local-scale aquatic habitats and the response of aquatic organisms on and adjacent to DoD lands in interior Alaska, and 2) integrate models that predict climate, fire, vegetation, hydrologic, and thermal dynamics to assess aquatic habitat and population vulnerability under a changing climate on and adjacent to DoD lands in interior Alaska. We will incorporate results from both objectives using a structured decision making (SDM) approach to define management objectives, decision options, management scenarios, and conduct cost-benefit analyses. The final product will be a web-based decision support tool developed to inform decision making.	Fire is the dominant ecological disturbance process in boreal forests and is natural and widespread. However, fire frequency, size and severity are increasing in Alaska owing to climate warming. Interactions among fire, climate, permafrost, vegetation and hydrologic and watershed processes are poorly understood, yet critical for conservation and management of boreal aquatic habitats in a changing environment. Our research will address this challenge on and around DoD lands in interior Alaska by combining a detailed field experiment and measurements with an integrated suite of spatially- and temporally-explicit climate, terrestrial, and aquatic habitat models to better our understanding of the effects of fire and climate change on aquatic communities in interior Alaska boreal ecosystems. Collaborators include the University of Alaska Fairbanks, USGS, Alaska Department of Fish and Game, U.S. Fish and Wildlife Service, U.S. Department of Defense, and the Alaska Fire Science Consortium. The two primary goals of this project are to, 1) quantify fire effects on watershed- and local-scale aquatic habitats and the response of aquatic organisms on and adjacent to DoD lands in interior Alaska, and 2) integrate models that predict climate, fire, vegetation, hydrologic, and thermal dynamics to assess aquatic habitat and population vulnerability under a changing climate on and adjacent to DoD lands in interior Alaska. We will incorporate results from both objectives using a structured decision making (SDM) approach to define management objectives, decision options, management scenarios, and conduct cost-benefit analyses. The final product will be a web-based decision support tool developed to inform decision making.
A rapid assessment method to estimate the distribution of juvenile Chinook salmon in an interior Alaska river basin	August 2016	Identification and protection of water bodies used by anadromous species in Alaska are critical in light of increasing threats to fish populations, yet challenging given budgetary and logistical limitations. Non-invasive, rapid assessment sampling techniques may reduce costs and effort while increasing species detection efficiencies. This project was a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. The combination of habitat modeling, occupancy estimation based on eDNA, and snorkel surveys provided a useful, rapid-assessment method to predict and subsequently quantify the distribution of juvenile salmon in previously unsampled tributary habitats in the Chena River, Alaska. These methods will provide tools for managers to rapidly and efficiently map critical rearing habitats and prioritize sampling efforts to expand the known distribution of juvenile salmon in interior Alaska streams.	Identification and protection of water bodies used by anadromous species in Alaska are critical in light of increasing threats to fish populations, yet challenging given budgetary and logistical limitations. Non-invasive, rapid assessment sampling techniques may reduce costs and effort while increasing species detection efficiencies. This project was a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. The combination of habitat modeling, occupancy estimation based on eDNA, and snorkel surveys provided a useful, rapid-assessment method to predict and subsequently quantify the distribution of juvenile salmon in previously unsampled tributary habitats in the Chena River, Alaska. These methods will provide tools for managers to rapidly and efficiently map critical rearing habitats and prioritize sampling efforts to expand the known distribution of juvenile salmon in interior Alaska streams.
Landscape genetics, connectivity, and dispersal: predicting impacts of a top predator (Esox lucius) on salmonids in Southcentral Alaska	September 2018	The introduction and expansion of invasive Northern Pike in southcentral Alaska have driven declines of salmonids in the Matanuska-Susitna Basin (MatSu) and led to the extirpation of a rare form of three spine stickleback in Praetor Lake near Wasilla. Because Northern Pike are piscivores that favor salmonids, their invasion has led to a change in the quality and quantity of salmon habitat in southcentral Alaska. Despite the strong conservation implications of the Northern Pike invasion, little work has been done to understand the ecology and potential evolution of the invader in its new range. This project is a collaboration among the University of Alaska Fairbanks, the USGS Northern Rocky Mountain Science Center, and the Alaska Department of Fish and Game. Given the broad extent of this landscape and limited resources available, determining the genetic diversity of pike in Alaska and the extent to which this top predator and juvenile salmon may overlap are crucial to predict future impacts of the invasion and inform management decisions through tools to aid identification and prioritization of critical areas.	The introduction and expansion of invasive Northern Pike in southcentral Alaska have driven declines of salmonids in the Matanuska-Susitna Basin (MatSu) and led to the extirpation of a rare form of three spine stickleback in Praetor Lake near Wasilla. Because Northern Pike are piscivores that favor salmonids, their invasion has led to a change in the quality and quantity of salmon habitat in southcentral Alaska. Despite the strong conservation implications of the Northern Pike invasion, little work has been done to understand the ecology and potential evolution of the invader in its new range. This project is a collaboration among the University of Alaska Fairbanks, the USGS Northern Rocky Mountain Science Center, and the Alaska Department of Fish and Game. Given the broad extent of this landscape and limited resources available, determining the genetic diversity of pike in Alaska and the extent to which this top predator and juvenile salmon may overlap are crucial to predict future impacts of the invasion and inform management decisions through tools to aid identification and prioritization of critical areas.
Travel Support for Stakeholder Involvement in “Differential effects of climate- mediated forest change on the habitats of two ungulates important to subsistence and sport hunting economies”	December 2019	This project will fund travel for face-to-face meetings with stakeholders (State and Federal agencies and Subsistence resource users) of the Western Alaska Landscape Conservation Cooperative (WALCC) in regard to a scientific modelling project. The modelling seeks to project the effects of climate on available forage for moose and caribou, as modified by snow cover and fire regimes, through 2100. The face-to-face meetings will present the goals and objectives of the modelling effort, seek identification of areas of particular concern for managers and subsistence users, and seek input on additional objectives that may be addressed by the modelling project. At the completion of the project, there will be a second set of face-to-face meetings where the results of the climate projections (maps of areas where forage is expected to improve or decline as a result of climate change) are delivered and stakeholders are consulted regarding the utility of the work to their issues and concerns and those issues and concerns will be noted in the final report for the modelling effort.	This project will fund travel for face-to-face meetings with stakeholders (State and Federal agencies and Subsistence resource users) of the Western Alaska Landscape Conservation Cooperative (WALCC) in regard to a scientific modelling project. The modelling seeks to project the effects of climate on available forage for moose and caribou, as modified by snow cover and fire regimes, through 2100. The face-to-face meetings will present the goals and objectives of the modelling effort, seek identification of areas of particular concern for managers and subsistence users, and seek input on additional objectives that may be addressed by the modelling project. At the completion of the project, there will be a second set of face-to-face meetings where the results of the climate projections (maps of areas where forage is expected to improve or decline as a result of climate change) are delivered and stakeholders are consulted regarding the utility of the work to their issues and concerns and those issues and concerns will be noted in the final report for the modelling effort.
Connectivity for Landscape Conservation Design and Adaptation Planning	November 2019	In the Northwest Boreal and Western Alaska region, climate is changing twice as fast as the global average. This is coupled with an increase in global demand for the region’s natural resources. Yet this region presently has less urbanization and development and therefore, fewer barriers to implementing a strategic landscape design for conservation (Chapin et al. 2004). Landscape conservation design in Alaska is an opportunity for the U.S. Fish and Wildlife Service’s, National Wildlife Refuge System (NWRS) to work collaboratively with partners to develop and implement a landscape approach that ensures our priority resources will have the capacity to cope with and respond to future change.	In the Northwest Boreal and Western Alaska region, climate is changing twice as fast as the global average. This is coupled with an increase in global demand for the region’s natural resources. Yet this region presently has less urbanization and development and therefore, fewer barriers to implementing a strategic landscape design for conservation (Chapin et al. 2004). Landscape conservation design in Alaska is an opportunity for the U.S. Fish and Wildlife Service’s, National Wildlife Refuge System (NWRS) to work collaboratively with partners to develop and implement a landscape approach that ensures our priority resources will have the capacity to cope with and respond to future change.
Chena River Juvenile Chinook Salmon Large Woody Debris Habitat Mapping	September 2018	Large woody debris (e.g., logjams, rootwads; LWD) within the channel provide important rearing habitat for fishes, and especially for juvenile Chinook Salmon in interior Alaska rivers, including the Chena River. For juvenile salmon, LWD provides cover from predation, refuge from high flow velocities, and high quality habitat for invertebrate prey items. However, the distribution, abundance, and characteristics of LWD, particularly within stream reaches where juvenile Chinook Salmon are known to rear, have yet to be quantified in the Chena River basin. This project is a collaboration among the University of Alaska Fairbanks and the U.S. Fish and Wildlife Service. Results of this project will be used to evaluate the potential for reintroduction of LWD to reaches of the Chena River below Moose Creek Dam, provide juvenile salmon rearing capacity estimates for the basin, and contribute towards efforts to monitor LWD based on remote sensing and link the distribution and abundance of wood along the river to wildfire and land management practices.	Large woody debris (e.g., logjams, rootwads; LWD) within the channel provide important rearing habitat for fishes, and especially for juvenile Chinook Salmon in interior Alaska rivers, including the Chena River. For juvenile salmon, LWD provides cover from predation, refuge from high flow velocities, and high quality habitat for invertebrate prey items. However, the distribution, abundance, and characteristics of LWD, particularly within stream reaches where juvenile Chinook Salmon are known to rear, have yet to be quantified in the Chena River basin. This project is a collaboration among the University of Alaska Fairbanks and the U.S. Fish and Wildlife Service. Results of this project will be used to evaluate the potential for reintroduction of LWD to reaches of the Chena River below Moose Creek Dam, provide juvenile salmon rearing capacity estimates for the basin, and contribute towards efforts to monitor LWD based on remote sensing and link the distribution and abundance of wood along the river to wildfire and land management practices.
Effects of Large Scale Climate Patterns (PDO, ENSO, AO) on Calving Ground Location, Forage Availability, and Calf Survival of the Porcupine Caribou Herd	October 2019	Our goal is to develop a mechanistic understanding of why Concentrated Calving Areas (CCAs) of the Porcupine Caribou Herd (PCH) were located predominantly in the Yukon Territory, 2000-2013, after a 17 year period (1983-1999) of being located predominantly in Alaska and the 1002 Area (Fig. 1 a,b). This goal addresses whether or not the eastward shift in concentrated calving, 2000-2013 is “permanent” or may be one phase of a cyclic phenomenon. The working hypothesis is that PCH caribou shifted calving eastward, 2000-2013, because the Pacific Decadal Oscillation (PDO) shifted to a negative phase and affected the location of high quality/high quantity forage in relation to predation risk (i.e., cows continued to find the best place to calve in a variable and cyclic climate). When the PDO shifts back to a predominantly positive phase, we expect calving to shift back to the Alaska Coastal Plain.	Our goal is to develop a mechanistic understanding of why Concentrated Calving Areas (CCAs) of the Porcupine Caribou Herd (PCH) were located predominantly in the Yukon Territory, 2000-2013, after a 17 year period (1983-1999) of being located predominantly in Alaska and the 1002 Area (Fig. 1 a,b). This goal addresses whether or not the eastward shift in concentrated calving, 2000-2013 is “permanent” or may be one phase of a cyclic phenomenon. The working hypothesis is that PCH caribou shifted calving eastward, 2000-2013, because the Pacific Decadal Oscillation (PDO) shifted to a negative phase and affected the location of high quality/high quantity forage in relation to predation risk (i.e., cows continued to find the best place to calve in a variable and cyclic climate). When the PDO shifts back to a predominantly positive phase, we expect calving to shift back to the Alaska Coastal Plain.
RWO 224: Application of an Integrated Ecosystem Model: A multi-institutional and multi-disciplinary effort to understand potential landscape, habitat and ecosystem change in Alaska and Northwest Canada.	August 2021	The overarching goal of this research work order is continued development and application of the Integrated Ecosystem Model (IEM) that integrates the driving components for, and the interactions among, disturbance regimes, permafrost dynamics, hydrology, and vegetation in Alaska and Northwest Canada. The outputs from the integrated model will provide natural resource managers and decision makers an improved understanding of the potential response of ecosystems to a changing climate. These projections of key ecological variables of interest (e.g., wildlife habitat conditions) can facilitate the integration of how landscapes may respond to climate change into resource management decisions.	None
FY15 ADFG Wildlife Base Funding	June 2015	Research projects as mutually agreed to by the Cooperators.	None
FY16 ADFG Wildlife Base Funding	June 2016	Research projects as mutually agreed to by the Cooperators.	None
FY14 ADFG Wildlife Base Funding	June 2014	Research projects as mutually agreed to by the Cooperators.	None
FY13 ADFG Wildlife Base Funding	June 2013	Research projects as mutually agreed to by the Cooperators.	None
FY12 ADFG Wildlife Base Funding	June 2012	Research projects as mutually agreed to by the Cooperators.	None
Development of an Alaska based research framework for migratory waterfowl	June 2018	Migratory waterfowl that breed in Alaska routinely travel thousands of miles in their annual migrations among breeding, stopover and wintering ranges. The effects of climate and land use on their survival and productivity varies along the migratory routes and population trends result from the cumulative effects of habitat quality and climate throughout their annual range. It is unlikely that the direction or strength of climate and habitat change are consistent among ranges and, as a result, it is extremely difficult to unravel the most important effects on population size when potentially contrasting positive and negative influences of climate and habitat occur within a year at widely separated locations. A very large scale research framework or strategy is needed to deal with the complexity of this problem and increase the relevance, efficiency and effectiveness of research studies and resulting management. Using an intensive review of the scientific literature to identify knowledge gaps and a survey of expert opinions of researchers and managers this project will identify what types of information are most critical for the development of a focused and integrated multi-regional research program and the best ways for researchers and managers from seasonal ranges to communicate in common terms.	None
Differential effects of climate-mediated forest change on the habitats of two ungulates important to subsistence and sport hunting economies	June 2016	Climate change is a complex process that may affect the food resources of different species of wildlife in contrasting ways. Moose and caribou are important to both subsistence and sport hunting economies throughout Alaska, but their winter diets are quite different; caribou focus on snow covered ground hugging lichens while moose focus on the twigs of erect deciduous shrubs that protrude above the snow. This project will use output from the Integrated Ecosystem Model to estimate the differential effects of climate change on the quantity of food available to these two species throughout most of Alaska and parts of Canada, ~1970-2100. The model integrates the expected effects of climate on lichen and shrub production, wildfire and resulting plant community change, and the restrictions to food availability caused by deep snow and ground icing as a result of rain-on-snow. The results will be stratified by land ownership and landscape characteristics to provide maps of expected changes in winter food for moose and caribou that will be tailored to and directly useable by natural resource managers as they devise strategies for adapting to a changing climate.	None
Social Ecological Systems on the Kenai Peninsula	June 2017	Study looks at landscape changes associated with social-ecological systems, centered around salmon and society on the Kenai Peninsula of southcentral Alaska.	None
Bioenergetic Modeling of Chinook and Coho Salmon Associated with a Proposed Dam on the Susitna River	December 2015	Work aims to model salmon bioenergetics to understand how a proposed hydroelectric dam may impact salmon runs on the Susitna River	None
Food Web Dynamics and Productivity on the Susitna River	December 2015	Study looks at trophic pathways supporting Chinook and Coho salmon on a large glacial riverine system slated for hydroelectric dam development.	None
Coastal Lagoon Fish Ecology along the Chukchi Coast, Alaska	December 2017	This study investigates the ecology of coastal lagoons along northwestern Alaska. We are interested in understanding what food web species are important for subsistence fishes, what species occur in the different types of lagoons, and seasonal use of lagoons by fishes are using coastal lagoons with implications for climate change and petroleum development in the Chukchi Sea.	None
Broad Whitefish (Coregonus nasus) Ecology, Habitat Use and Potential Impacts of Climate Change in Arctic Alaska	December 2020	Subsistence fisheries provide an important food resource for communities on Alaska’s Arctic Coastal Plain. Despite the importance of the Colville River’s summer run of Broad Whitefish (<i>Coregonus nasus</i>)<b> </b>to Native communities and the potential habitat impacts associated with climate change and petroleum development, the basic ecology of this migratory species remains poorly understood. The objectives of this ongoing study are to identify key habitats and seasonal migration patterns, understand the prevalence and role of anadromy, and conceptualize how ongoing climate change will likely influence Broad Whitefish growth, phenology, and their habitats. Methods include studying adult migratory fish in summer riverine habitats, analyzing stable isotopes in body tissues to estimate the contribution of marine food resources, assessing strontium isotopes in otoliths to determine life history type, and using radio telemetry to determine seasonal movements among freshwater habitats. Findings from this research will provide insight into potential effects from climate and landscape change to better conserve this important subsistence resource on the Arctic Coastal Plain.	Subsistence fisheries provide an important food resource for communities on Alaska’s Arctic Coastal Plain. Despite the importance of the Colville River’s summer run of Broad Whitefish (<i>Coregonus nasus</i>)<b> </b>to Native communities and the potential habitat impacts associated with climate change and petroleum development, the basic ecology of this migratory species remains poorly understood. The objectives of this ongoing study are to identify key habitats and seasonal migration patterns, understand the prevalence and role of anadromy, and conceptualize how ongoing climate change will likely influence Broad Whitefish growth, phenology, and their habitats. Methods include studying adult migratory fish in summer riverine habitats, analyzing stable isotopes in body tissues to estimate the contribution of marine food resources, assessing strontium isotopes in otoliths to determine life history type, and using radio telemetry to determine seasonal movements among freshwater habitats. Findings from this research will provide insight into potential effects from climate and landscape change to better conserve this important subsistence resource on the Arctic Coastal Plain.
Landscape-Climate-Riverine Linkages and Climate Change	June 2017	This is a synthesis effort that will tie together information on landscape change with changes in river flow and fish habitat on the Kenai River.	None
Landscape Characteristics Influence Climate Change Effects on Juvenile Chinook and Coho Salmon Rearing Habitat in the Kenai River	August 2020	Shifts in water temperature regime influence juvenile salmon freshwater rearing habitat differently depending on local temperature and food conditions, but neither are well-characterized in the Kenai River watershed. Regional stakeholders in the Kenai Peninsula are concerned about the future of salmon populations in the face of climate change. A more detailed understanding of how environmental variables influence juvenile salmon growth rates will help inform us on how these fish will fare in a changing landscape. Objectives are to (1) characterize how juvenile Chinook and coho salmon growth rates respond to projected rising water temperatures across diverse landscape settings, and (2) examine the degree to which stream temperature monitoring sites in lower reaches are representative of upstream thermal conditions. Project results will provide support to the growing consensus that diverse habitats within a watershed support diverse early-life history opportunities for juvenile salmon and underscore the regional variability of climate change influence on Pacific salmon lifecycles.	Shifts in water temperature regime influence juvenile salmon freshwater rearing habitat differently depending on local temperature and food conditions, but neither are well-characterized in the Kenai River watershed. Regional stakeholders in the Kenai Peninsula are concerned about the future of salmon populations in the face of climate change. A more detailed understanding of how environmental variables influence juvenile salmon growth rates will help inform us on how these fish will fare in a changing landscape. Objectives are to (1) characterize how juvenile Chinook and coho salmon growth rates respond to projected rising water temperatures across diverse landscape settings, and (2) examine the degree to which stream temperature monitoring sites in lower reaches are representative of upstream thermal conditions. Project results will provide support to the growing consensus that diverse habitats within a watershed support diverse early-life history opportunities for juvenile salmon and underscore the regional variability of climate change influence on Pacific salmon lifecycles.
Development and Application of an Integrated Ecosystem Model	August 2016	The Alaska Integrated Ecosystem Modeling (AIEM) Project is a multi-institutional and multi-disciplinary enterprise designed to meet Alaska land managers’ needs to understand the nature and rate of landscape change. Ultimately, this tool will provide an integrated framework for natural resource managers and decision makers and produce specific scenarios of changes in landscape structure and function that could be used by resource-specific impact models.	None
Lake trout otoliths as indicators of past climate patterns and growth in Arctic lakes	May 2016	The effects of climate change on freshwater ecosystems are amplified in high-latitude regions, however, due to the remote location of Arctic Alaska climate data are limited. Predictions have indicated that warming temperatures owing to climate change could increase fish growth, but the magnitude and factors influencing these changes remain uncertain. This project was a collaboration between the University of Alaska Fairbanks, USGS Alaska Science Center, and the Bureau of Land Management. This study demonstrated the utility of biochronology techniques to estimate past climate patterns in remote regions, as well as provided valuable knowledge regarding growth-environment relationships for Lake Trout. In turn, this information can be used to better understand the effects of a changing environment in sensitive Arctic lake ecosystems.	The effects of climate change on freshwater ecosystems are amplified in high-latitude regions, however, due to the remote location of Arctic Alaska climate data are limited. Predictions have indicated that warming temperatures owing to climate change could increase fish growth, but the magnitude and factors influencing these changes remain uncertain. This project was a collaboration between the University of Alaska Fairbanks, USGS Alaska Science Center, and the Bureau of Land Management. This study demonstrated the utility of biochronology techniques to estimate past climate patterns in remote regions, as well as provided valuable knowledge regarding growth-environment relationships for Lake Trout. In turn, this information can be used to better understand the effects of a changing environment in sensitive Arctic lake ecosystems.
Migration patterns and energetics of adult Chinook Salmon in Alaska rivers	May 2017	Adult Chinook Salmon undertake extensive and energetically costly migrations between food resources in the ocean and their freshwater spawning habitats, requiring them to adapt behavioral and physiological traits that allow them to successfully reach their spawning streams and reproduce. Such adaptations may be shaped by physical factors in the environment and individual- and population-specific biological characteristics. Chinook Salmon in North America are important resources for both United States and Canadian stakeholders, but relatively little is known about their freshwater migration patterns and energetic status in Southeast Alaska. This work is a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. Given threats from climate change and mining activities, the results of this project will be useful for fisheries researchers as a benchmark for understanding migration behaviors in these Chinook Salmon populations, and our work indicates that integration of measure of energetic status into population monitoring may be a useful tool for creating management practices targeted at facilitating successful migration behaviors and increasing or maintaining body condition for these fish.	Adult Chinook Salmon undertake extensive and energetically costly migrations between food resources in the ocean and their freshwater spawning habitats, requiring them to adapt behavioral and physiological traits that allow them to successfully reach their spawning streams and reproduce. Such adaptations may be shaped by physical factors in the environment and individual- and population-specific biological characteristics. Chinook Salmon in North America are important resources for both United States and Canadian stakeholders, but relatively little is known about their freshwater migration patterns and energetic status in Southeast Alaska. This work is a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. Given threats from climate change and mining activities, the results of this project will be useful for fisheries researchers as a benchmark for understanding migration behaviors in these Chinook Salmon populations, and our work indicates that integration of measure of energetic status into population monitoring may be a useful tool for creating management practices targeted at facilitating successful migration behaviors and increasing or maintaining body condition for these fish.
Using remote sensing, occupancy estimation, and fine-scale habitat characterization to evaluate fall chum salmon spawning habitat usage in Arctic Alaska	December 2016	Groundwater upwellings provide stable temperatures for overwinter salmon embryo development and this process may be particularly important in cold, braided, gravel-bed Arctic rivers where rivers may freeze solid in the absence of upwellings. However, limited information is available on the spatial distribution and frequency of these upwellings in core spawning areas, or the relationship between upwellings and spawning salmon habitat use. Moreover, an increase in mining exploration and the effects of climate change have raised concerns about the future of fall chum salmon among local community members and state and Federal fisheries managers. This project was a collaboration between the University of Alaska Fairbanks and the U.S. Fish and Wildlife Service. Results of this study results provide insights into the characteristics of fall chum salmon spawning habitats in the Arctic, and contribute toward a broader understanding of the habitat needs of high-latitude salmon in a changing environment.	Groundwater upwellings provide stable temperatures for overwinter salmon embryo development and this process may be particularly important in cold, braided, gravel-bed Arctic rivers where rivers may freeze solid in the absence of upwellings. However, limited information is available on the spatial distribution and frequency of these upwellings in core spawning areas, or the relationship between upwellings and spawning salmon habitat use. Moreover, an increase in mining exploration and the effects of climate change have raised concerns about the future of fall chum salmon among local community members and state and Federal fisheries managers. This project was a collaboration between the University of Alaska Fairbanks and the U.S. Fish and Wildlife Service. Results of this study results provide insights into the characteristics of fall chum salmon spawning habitats in the Arctic, and contribute toward a broader understanding of the habitat needs of high-latitude salmon in a changing environment.
Genetic Diversity and Population Rlations of Resident Kokanee and Andadromous Salmon in Copper Lake (Wrangell-St. Elias National Park)	May 2016	Copper Lake in the Wrangell-St. Elias National Park (WSTP) is thought to be home to a population of kokanee salmon, a non-migratory (i.e., resident) form of sockeye salmon. Field surveys have produced small sockeye salmon specimens in reproductive condition. Whether these fish belong to a self-perpetuating population of resident salmon or to a sockeye population that expresses both migratory and non-migratory life history variants remains to be determined.This project aims to produce a thorough baseline assessment of sockeye salmon genetic variability in Copper and Tanada Lakes (WSTP) using suites of genetic markers widely deployed for sockeye salmon assessments in the state. The resulting measures of genetic diversity (from multi-locus genotypes) will be summarized in indices of variation within and between groups (e.g. lakes, resident vs. migratory, drainage), which serve as estimates of the degree of genetic differentiation between groups.	None
The role of environmental processes in structuring the distribution of Chinook salmon spawning and rearing habitats across a large Alaska river basin	June 2018	Chinook salmon are an important commercial, subsistence, and recreational fishery resource in Alaska. Substantial declines in escapement from many Alaskan watersheds in recent years have resulted in closures of Chinook salmon fishing in more imperiled drainages, such as the Chena River, Alaska. Physical processes such as hydrology and stream temperature are important mechanisms that influence fish populations, yet their dynamics are poorly understood in boreal stream ecosystems. This project was a collaboration between the University of Alaska Fairbanks, the U.S. Fish and Wildlife Service, and the Alaska Department of Fish and Game. We developed spatially continuous metrics that describe historic, current, and future physical habitat, hydrologic and temperature regimes within the Chena River basin, a predictive model of stream thermal regimes used to investigate riverscape-scale patterns in juvenile salmon bioenergetic performance, and an assessment of environmental and density-dependent factors influencing juvenile and adult Chinook salmon population dynamics and distributions. Our results will assist with conservation and management planning through identification and prioritization of critical spawning and rearing areas, and ultimately help identify mechanisms limiting Chinook salmon productivity within the Chena watershed.	Chinook salmon are an important commercial, subsistence, and recreational fishery resource in Alaska. Substantial declines in escapement from many Alaskan watersheds in recent years have resulted in closures of Chinook salmon fishing in more imperiled drainages, such as the Chena River, Alaska. Physical processes such as hydrology and stream temperature are important mechanisms that influence fish populations, yet their dynamics are poorly understood in boreal stream ecosystems. This project was a collaboration between the University of Alaska Fairbanks, the U.S. Fish and Wildlife Service, and the Alaska Department of Fish and Game. We developed spatially continuous metrics that describe historic, current, and future physical habitat, hydrologic and temperature regimes within the Chena River basin, a predictive model of stream thermal regimes used to investigate riverscape-scale patterns in juvenile salmon bioenergetic performance, and an assessment of environmental and density-dependent factors influencing juvenile and adult Chinook salmon population dynamics and distributions. Our results will assist with conservation and management planning through identification and prioritization of critical spawning and rearing areas, and ultimately help identify mechanisms limiting Chinook salmon productivity within the Chena watershed.
Temperature, phenology, and embryo survival in Western Alaska sockeye salmon populations: the potential for adaptation to a warming world?	May 2016	Rapidly warming water temperatures associated with climate change represent a substantial disturbance to the habitat of aquatic ectothermic organisms. For salmonid fishes, early life history survival and timing of reproduction and development are closely tied to temperature, such that altered thermal regimes could alter patterns of survival or shift phenology into a mismatch with the environment. Because temperature is the dominant driver of developmental rates, empirical statistical models have been developed to predict the timing of hatching and fry emergence based on average incubation temperature, but the effect of thermal variability (commonly observed in natural systems and predicted to increase with climate change) has not been incorporated into these models. This project was a collaboration between the University of Alaska Fairbanks, the University of Washington, the U.S. Fish and Wildlife Service, and the National Park Service. The results of this study indicated that the effects of climate change during salmon early life history stages may be buffered by phenotypic plasticity and variability in populations and habitats will be important to conserve to maintain diversity in the face of climate change.	Rapidly warming water temperatures associated with climate change represent a substantial disturbance to the habitat of aquatic ectothermic organisms. For salmonid fishes, early life history survival and timing of reproduction and development are closely tied to temperature, such that altered thermal regimes could alter patterns of survival or shift phenology into a mismatch with the environment. Because temperature is the dominant driver of developmental rates, empirical statistical models have been developed to predict the timing of hatching and fry emergence based on average incubation temperature, but the effect of thermal variability (commonly observed in natural systems and predicted to increase with climate change) has not been incorporated into these models. This project was a collaboration between the University of Alaska Fairbanks, the University of Washington, the U.S. Fish and Wildlife Service, and the National Park Service. The results of this study indicated that the effects of climate change during salmon early life history stages may be buffered by phenotypic plasticity and variability in populations and habitats will be important to conserve to maintain diversity in the face of climate change.
Development and calibration of bioelectrical impedance analysis as a measure of energetic status of Arctic grayling (Thymallus arcticus)	July 2015	The energetic status of fishes represents energy stored as protein and lipids and reflects the ability of an individual to reproduce, migrate, and transition through life stages, ultimately influencing survival. However, traditional measurement methods, while highly accurate, are time consuming, expensive, and lethal, and nonlethal methods such as condition factor may not adequately characterize energetic status. Development of non-lethal but precise methods, such as biolelectrical impedance analysis (BIA), to estimate Arctic grayling body condition, as well as baseline data on variation in condition across populations in interior Alaska, is needed. This project was a collaboration between the University of Alaska Fairbanks and USGS. We found the BIA approach to provide rapid, precise, and non-lethal estimates of Arctic grayling body condition, and that fish condition varied by sex, season, and the presence of spawning Pacific salmon across interior Alaska river basins. Such an approach may be useful for future work to characterize Arctic grayling bioenergetics and monitor fish condition under a rapidly changing Arctic environment.	The energetic status of fishes represents energy stored as protein and lipids and reflects the ability of an individual to reproduce, migrate, and transition through life stages, ultimately influencing survival. However, traditional measurement methods, while highly accurate, are time consuming, expensive, and lethal, and nonlethal methods such as condition factor may not adequately characterize energetic status. Development of non-lethal but precise methods, such as biolelectrical impedance analysis (BIA), to estimate Arctic grayling body condition, as well as baseline data on variation in condition across populations in interior Alaska, is needed. This project was a collaboration between the University of Alaska Fairbanks and USGS. We found the BIA approach to provide rapid, precise, and non-lethal estimates of Arctic grayling body condition, and that fish condition varied by sex, season, and the presence of spawning Pacific salmon across interior Alaska river basins. Such an approach may be useful for future work to characterize Arctic grayling bioenergetics and monitor fish condition under a rapidly changing Arctic environment.
Seasonal movements and habitat use of rainbow trout in the Susitna River basin, Southcentral Alaska	December 2015	Resident rainbow trout are an important ecological and fishery resource in the Susitna River basin, yet the distribution of their seasonal habitats is poorly understood. Variable spawning site fidelity, long-range movements, and potential land use and climate change effects add to the uncertainty surrounding conservation and management of this species. The objective of this project is to assess the availability and use of seasonal habitats by rainbow trout and to link habitat characteristics (physical habitat, water temperature, and flow) with fish location and movement. Habitat availability will be assessed by spatially-continuous mapping of geomorphic channel types and water temperature metrics, and will be conducted during summer 2013. Habitat use will be quantified by radio-tagging a sample of rainbow trout in 2013 and tracking them throughout the spawning and rearing seasons in 2014. The results from this research will be useful for prioritizing habitat protection efforts in light of anticipated future land use and climate change. This project is funded by the Alaska Department of Fish and Game, (Palmer Regional Office) who will also provide logistical support and collaborate on data analysis and interpretation, and the MatSu Basin Salmon Habitat Partnership.	Resident rainbow trout are an important ecological and fishery resource in the Susitna River basin, Alaska, yet the distribution of their seasonal habitats is poorly understood. Variable spawning site fidelity, long-range movements, and potential land use and climate change effects add to the uncertainty surrounding conservation and management of this species. This project was a collaboration between the University of Alaska Fairbanks and the Alaska Department of Fish and Game. The results from this research will be useful for prioritizing habitat protection efforts in light of anticipated future land use and climate change.
G7315-Identifying Mechanisms of State Change and Forecasting Future Vulnerability	June 2016	This research will combine field measurements (Objective 1) with models (Objective 2) to detect and predict state changes in boreal ecosystems of Interior Alaska in response to changing climate and land management. OBJECTIVE 1) Determine mechanistic links among fire, soils, permafrost, and vegetation succession in order to develop and test field-based ecosystem indicators that can be used to directly predict ecosystem vulnerability to state change. OBJECTIVE 2) Forecast landscape change in response to projected changes in climate, fire regime, and fire management.	None
G6941/335856-65504-Regional consequences of changing climate-disturbance interactions for the resilience of Alaska's boreal forest	January 2018	Our research program focuses on social-ecological resilience and response to change by integrating four components. (1) Studying past and current direct effects of climate change on ecosystems and key disturbance regimes (fire, permafrost thaw, insect/pathogen outbreaks) at local and regional scales; (2) understanding mechanisms and consequences for how climate-disturbance interactions drive changes in ecosystems and landscape structure and heterogeneity; (3) modeling the effects of interactions among changes in climate, ecosystem structure and function, and disturbance regimes on regional ecosystem dynamics and climate feedbacks (forest-atmosphere exchanges of trace gases, water, and energy); and (4) studying how climate variability and change are affecting the coupled social-ecological dynamics of rural Alaskan villages by understanding how changes in ecosystem services are affecting community resilience and helping to identify opportunities for adaptation and/or transformation of community practices.	None
RWO203-Process-Based Model Assessment of Historical and Projected Changes in Carbon Storage in Alaska	January 2017	In this study we propose to apply the dynamic organic soil version of the Terrestrial Ecosystem Model (DOS-TEM; Yuan et al. 2012) to assess historical (1960 – 2009) and projected (2010 – 2099) changes in carbon storage in Alaska. Historical simulations will be driven by downscaled climate prepared by the Scenarios Network for Alaska & Arctic Planning (SNAP; www.snap.uaf.edu), observed atmospheric concentrations of CO2, and historical observations of wildfire in Alaska. Projected simulations will be driven by downscaled future scenarios of climate prepared by SNAP, associated atmospheric concentrations of CO2, and associated projections of wildfire simulated by the Alaska Frame Based Ecosystem Code (ALFRESCO; Rupp et al. 2007) and by the First Order Fire Effects Model (FOFEM; Reinhardt 2003) burned area model. Initial vegetation for these simulations will be based on the vegetation data set being prepared by SNAP for the Western Arctic, which includes all of Alaska. Data products will include annual maps of vegetation distribution, stand age distribution, burn area, fire severity, active layer thickness, soil organic layer thickness, vegetation carbon, soil carbon to 1 meter, soil organic layer carbon, net primary production (NPP), heterotrophic respiration (RH), fire emissions (FE), and net ecosystem carbon balance (NECB) at 1-km resolution from 1960 through 2099. Annual NECB will be determined via two methods: (1) as a difference in the stocks between years and (2) a sum of the fluxes (NPP-RH-FE) to verify that difference in stocks is consistent with the sum of the fluxes. These outputs will be aggregated to four regions of Alaska for reporting purposes: Interior Alaska, Arctic Alaska, Western Alaska, and Southeast/Southcentral Alaska. The historical model outputs will be validated to the extent possible based on analyses of soil and vegetation carbon for Alaska. The simulations and model evaluation will be conducted in FY13 and the results will be summarized in USGS reports and a special issue of a peer reviewed journal in FY14. Data will be distributed to the public via a USGS web server.	None
RWO204-Evaluating moose (Alces alces gigas) browse and habitat resources and responses to fire dynamics on the Kanuit National Wildlife Refuge	December 2015	The goal of this project is to evaluate the effect of fire history, plant community composition, and landscape characteristics on moose over-winter forage resources and use. In Alaska, much research has been conducted to evaluate the nutritional condition of moose. In fact, nutritional condition is used to predict future population levels and to establish appropriate harvest strategies. However, metrics used to assess animal condition, such as twinning rate and body weight, lack the ability to predict how moose populations and food resources will change in the future, because they are based on direct observations of changes that have already occurred on the landscape (Seaton et al. 2011). Quantifying moose browse correlates well with these metrics, particularly twinning rate, because browse availability and use are indicative of nutritional condition (Seaton 2002, Paragi et al. 2008). Identifying changes in habitat quality over large areas and through time would enable land managers to predict and appropriately respond to consequent changes in moose populations. Specific objectives of the research are to: 1. quantify available browse production and browse removal in different aged burn scars, 2. determine the proportion of browse removed in different aged burn scars, 3. correlate the proportion of browse removed with findings from relevant, recent population studies conducted on Kanuti NWR by ADF&G and USFWS, and 4. link findings from Objective 1 to vegetation and landscape characteristics in order to predict future likelihood of browse.	None
Freshwater Predation on Chena River Juvenile Chinook Salmon	March 2016	PI to Complete	None
Shorebirds and invertebrate distribution on delta mudflats along the Beaufort Sea	December 2015	Quality foraging habitat for shorebirds is determined by the abundance of benthic invertebrates, but can also be influenced by lagoon water levels that can inundate the delta making the habitat inaccessible to shorebirds. Most of the change in water level on delta mudflats comes from wind driven waves. If wind patterns are consistent then available habitat is predictable, but changes in tide due to westerly storms can be significant and may inundate the whole delta for several days. Climate change may change the frequency of storms and seems to have changed the intensity of the storms by increasing the size of waves because the reduced amount of ice results in fewer impediments to wave build up. This has the potential to change the availability of shorebird feeding areas, making the occurrence of this habitat less predictable to birds during the post-breeding period. In addition to quantifying invertebrate resources, the study will assess whether the resources available to shorebirds are sufficient to prepare the birds for their fall migration. A functional response model will be used for this assessment based on the capture rate and handling time modeled against invertebrate abundance. This study will survey the shorelines and consist of taking core samples for laboratory analysis for chemical analysis, population structure, numbers of individuals, and diversity of populations from the interstitial spaces within the littoral zone of coastlines along the Beaufort Sea. Objectives The specific objectives of this study are to: 1. Quantify the spatial and temporal distribution of benthic invertebrates at coastal lagoons and river deltas along the Beaufort Sea coast within the USFWS Arctic Refuge at 3 sites associated with the coastal lagoons at the Jago, Okpilak, and Canning Rivers. 2. Assess the chemical footprint to characterize the sources of the suspended sediments. 3. Assess whether patterns of invertebrate abundance and distribution correspond to foraging shorebird abundance and distribution. 4. Develop a model describing the connection between wind patterns and water levels on the mudflat and sediment dispersion that can be used to assess available foraging habitat for shorebirds. 5. Assess food eaten by shorebirds through stable isotope analysis, genetics (of invertebrates collected from fecal samples). 6. Assess whether shorebirds respond physiologically to a greater abundance in food resources through body condition measurements and increased triglyceride levels. 7. Assess whether available invertebrate resources in the coastal lagoons and river deltas along the Beaufort Sea are sufficient for pre-migratory fattening of shorebirds or provide information for bioremediation.	Quality foraging habitat for shorebirds is determined by the abundance of benthic invertebrates, but can also be influenced by lagoon water levels that can inundate the delta making the habitat inaccessible to shorebirds. Most of the change in water level on delta mudflats comes from wind-driven waves. Climate change may change the frequency of storms and seems to have changed the intensity of the storms by increasing the size of waves because the reduced amount of ice results in fewer impediments to wave build up. This has the potential to change the availability of shorebird feeding areas, making the occurrence of this habitat less predictable to birds during the post-breeding period. This study will assess whether the resources available to shorebirds are sufficient to prepare the birds for their fall migration. A functional response model will be used for this assessment based on the capture rate and handling time modeled against invertebrate abundance. We will also survey the shorelines and consist of taking core samples for laboratory analysis for chemical analysis, population structure, numbers of individuals, and diversity of populations from the interstitial spaces within the littoral zone of coastlines along the Beaufort Sea.
Reproductive success of arctic-breeding shorebirds in a changing climate	December 2015	Climate change is projected to increase air temperatures and alter hydrologic systems in arctic environments, which will create positive feedbacks on shrub growth and advance the phenology of arthropods, important prey for many arctic-breeding birds. Little is understood about how such climate-induced changes in habitat and prey availability may affect reproductive success of migratory birds during the short arctic breeding season. Worldwide, declines in shorebird populations, including arctic-breeding species, have recently become apparent. Projected changes in climate are expected to benefit arctic-breeding shorebirds in the short-term by increasing reproductive success and survival, primarily through amelioration of harsh weather and prolongation of summer. Over time, however, reductions in the quantity and quality of open tundra habitat and changes in prey availability may adversely affect shorebird reproduction and exacerbate current population declines. We are evaluating the reproductive success of two shorebird species, American (Pluvialis dominica) and Pacific (P. fulva) Golden-Plovers, in relation to vegetation extent, phenology, and arthropod biomass.	Climate change is projected to increase air temperatures and alter hydrologic systems in arctic environments, which will create positive feedbacks on shrub growth and advance the phenology of arthropods, important prey for many arctic-breeding birds. Little is understood about how such climate-induced changes in habitat and prey availability may affect reproductive success of migratory birds during the short arctic breeding season. Worldwide, declines in shorebird populations, including arctic-breeding species, have recently become apparent. Projected changes in climate are expected to benefit arctic-breeding shorebirds in the short-term by increasing reproductive success and survival, primarily through amelioration of harsh weather and prolongation of summer. Over time, however, reductions in the quantity and quality of open tundra habitat and changes in prey availability may adversely affect shorebird reproduction and exacerbate current population declines. We are evaluating the reproductive success of two shorebird species, American (Pluvialis dominica) and Pacific (P. fulva) Golden-Plovers, in relation to vegetation extent, phenology, and arthropod biomass.
Productivity of Black Oystercatchers in southwest Alaska	December 2018	The Nearshore Monitoring Protocol under the SWAN Inventory and Monitoring Program incorporates annual monitoring of black oystercatcher population abundance, nest density and productivity, and prey species and sizes provided to chicks. However, each of these metrics is estimated from a single visit to Kenai Fjords and Katmai National Parks annually. Data resulting from a single observation are recognized as potentially influenced by events that occur both prior to and following the visit, including breeding failure, and egg and chick mortality. Additionally, the collection of prey remains brought to nest sites to provision chicks can only reflect what was provided prior to the collection date and does not include data about soft bodied prey, prey items brought to chicks away from the nest site, or prey items brought to the area by other birds such as gulls and crows. To address these issues, we propose examining black oystercatcher nests, diet and chick provisioning to ensure robust interpretation of trends observed in long term monitoring data collected for this species. Our objectives in the proposed research are to: (1) estimate productivity at 20 black oystercatcher nest sites over two years, (2) determine sources of disturbance and mortality to adults, eggs, and chicks prior to fledging, (3) estimate rates of energy delivery to chicks through repeated collections of prey shell remains and observations of prey deliveries, and (4) estimate productivity and fledging success as a function of prey provisioning.	The black oystercatcher serves as a “keystone” species that is important in structuring nearshore systems and is highly susceptible to human disturbance. Current inventory and monitoring efforts may not adequately address the information needs for estimating long-term trends for this species. To address these issues, we propose examining black oystercatcher nests, diet and chick provisioning to ensure robust interpretation of trends observed in long term monitoring data collected for this species. The project is a collaborative effort with the National Park Service and the University of Alaska, Fairbanks. We will evaluate current and alternative methods for monitoring black oystercatcher reproductive success and produce recommendations useful to wildlife managers.
Assessing shorebird use of lagoons in Cape Krusenstern National Monument	December 2018	Cape Krusenstern National Monument’s (CAKR) coastline includes lagoons and estuaries, which are important areas for migratory birds breeding and staging activities. Despite the vulnerability of these areas to effects of offshore energy development, little is known regarding abundance, species composition, distribution or use of coastal habitats by migrating waterbirds (shorebirds, waterfowl, and seabirds). We will address the following objectives at Krusenstern and Sisualik lagoons from mid July – late August, 2014: 1. Determine timing of use by post-breeding shorebirds 2. Determine species abundance and diversity of shorebirds 3. Document habitat use around and within the lagoon by shorebirds 4. Provide a comparison of data collected during this study to historic records for the area	Cape Krusenstern National Monument’s coastline includes lagoons and estuaries, which are important areas for migratory birds breeding and staging activities. Despite the vulnerability of these areas to effects of offshore energy development, little is known regarding abundance, species composition, distribution or use of coastal habitats by migrating waterbirds (shorebirds, waterfowl, and seabirds). This work is a collaboration among NPS, USFWS, and University of Alaska wildlife managers and scientists. Our objectives are to (1) determine timing of use by post-breeding shorebirds, and species abundance and diversity of shorebirds, (2) document habitat use around and within the lagoon by shorebirds, and (3) provide a comparison of data collected during this study to historic records for the area. This information is important to wildlife managers to improve knowledge of potential impacts to this unique area.

Research Publications

Research Publications	Publication Date
van Riper, C. III, James D. Nichols, G. Lynn Wingard, Jeffrey L. Kershner, James Cloern, Robert B. Jacobson, Robin P. White, Anthony D. McGuire, Byron K. Williams, Guy Gelfenbaum, and Carl D. Shapiro. 2014 USGS Ecosystem Research for the Next Decade: Advancing Discovery and Application in Parks and Protected Areas through Collaboration. George Wright Forum 31:129-136.	August 2014
Zhuang, Q., X. Zhu, Y. He, C. Prigent, J.M. Melillo, A.D. McGuire, R.G. Prinn, and D.W. Kicklighter. 2015. Influence of changes in wetland inundation extent on net fluxes of carbon dioxide and methane in northern high latitudes from 1993 to 2004. Environmental Research Letters 9, 13 pages, doi:10.1088/1748-9326/10/9/095009.	September 2015
Zhuang, Q., V. E. Romanovsky, and A. D. McGuire. 2005. Incorporation of a permafrost model into a large-scale ecosystem model: Evaluation of temporal and spatial scaling issues in simulating soil thermal dynamics. Journal of Geophysical Research-Atmospheres 106:33, 649-33, 670.	July 2005
Zhuang, Q., M. Chen, K. Xu, J. Tang, E. Saikawa, Y. Lu, J.M. Melillo, R.G. Prinn and A.D. McGuire. 2013. Response of global soil consumption of atmospheric methane to changes in atmospheric climate and nitrogen deposition. Global Biogeochemical Cycles 27, 14 pages, doi:10.1002/gbc.20057.	September 2013
Zhuang, Q., J. M. Melillo, M. C. Sarofim, D. W. Kicklighter, A. D. McGuire, B. S. Felzer, A. Sokolov, R. G. Prinn, P. A. Steudler, and S. Hu. Published. CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century. Geophysical Research Letters 33, L17403, doi: 10. 1029/2006GL026972, 2006	September 2006
Zhuang, Q., J. M. Melillo, D. W. Kicklighter, R. G. Prinn, A. D. McGuire, P. A. Steudler, B. S. Felzer, and S. Hu. 2004. Methane fluxes between terrestrial ecosystems and the atmosphere at northern high latitudes during the past century: A retrospective analysis with a process-based biogeochemistry model. Global Biogeochemical Cycles 18:GB3010, doi:10. 1029/2004GB002239.	October 2004
Zhuang, Q., J. M. Melillo, A. D. McGuire, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, B. S. Felzer, and S. Hu. 2007. Net emissions of CH4 and CO2 in Alaska: Implications for the region's greenhouse gas budget. Ecological Applications 17:203-212	March 2007
Zhuang, Q., A. D. McGuire, J. M. Melillo, J. S. Clein, R. J. Dargaville, D. W. Kicklighter, R. B. Myneni, J. Dong, V. E. Romanovsky, J. Harden, and J. E. Hobbie. 2003. Carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere during the 20th Century: A modeling analysis of the influences of soil thermal dynamics. Tellus 55B:751-776.	January 2003
Zhuang, Q., A. D. McGuire, J. Harden, K. P. O'Neill, V. E. Romanovsky, and J. Yarie. 2002. Modeling soil thermal and carbon dynamics of a fire chronosequence in interior Alaska. Journal of Geophysical Research - Atmospheres 107, 8147, doi:10. 1029/2001JD001244, 2002. ([printed 108(D1), 2003]	April 2003
Zhu, Zhiliang, and McGuire, A.D., eds. 2016. Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
Zhou, X., S.A. Schroder, A.D. McGuire, and Z. Zhu. 2016. Forest inventory-based analysis and projections of forest carbon stocks and changes in Alaska coastal forests. Chapter 4 (pages 77-94) in Z. Zhu and A.D. McGuire, eds., Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
Zhang, X., A. D. McGuire, and R. W. Ruess. 2006. Scaling uncertainties in estimating canopy foliar maintenance respiration for black spruce ecosystems in Alaska. Mitigation and Adaptation Strategies for Global Change 11:147-171.	March 2006
Young, D. D., T. R. McCabe, R. Ambrose, G. W. Garner, G. W. Weiler, H. V. Reynolds, M. S. Udevitz, D. J. Reed, and B. Griffith. 2002. Predators. Pages 51-53 in D. C. Douglas, P. E. Reynolds, and E. B. Rhode, editors. Arctic Refuge coastal plain terrestrial wildlife research summaries. U. S. Geological Survey, Biological Resources Division, Biological Science Report USGS/BRD BSR-2002-0001.	March 2002
Yi, S., N. Li, B. Xiang, X. Wang, B. Ye, and A.D. McGuire. 2013. Representing the effects of alpine grassland vegetation cover on the simulation of soil thermal dynamics by ecosystem models applied to the Qinghai-Tibetan Plateau. Journal of Geophysical Research – Biogeosciences 118, 14 pages, doi:10.1002/gjrg.20093.	September 2013
Yi, S., K. Manies, J. Harden, and A.D. McGuire. 2009. Characteristics of organic soil in black spruce forests: Implications for the application of land surface and ecosystem models in cold regions. Geophysical Research Letters 36, L05501, 5 pages. doi: 10.1029/2008GL037014.	March 2009
Yi, S., A.D. McGuire, J. Harden, E. Kasischke, K. Manies, L. Hinzman, A. Liljedahl, J. Randerson, H. Liu, V. Romanovsky, S. Marchenko, and Y Kim. 2009. Interactions between soil thermal and hydrological dynamics in the response of Alaska ecosystems to fire disturbance. Journal of Geophysical Research - Biogeosciences 114, G02015, 20 pages. doi:10.1029/2008JG000841.	May 2009
Yi, S., A.D. McGuire, E. Kasischke, J. Harden, K. Manies, M. Mack, and M. Turetsky. 2010. A dynamic organic soil biogeochemical model for simulating the effects of wildfire on soil environmental conditions and carbon dynamics of black spruce forests. Journal of Geophysical Research 115, G04015, 15 pages, doi: 10.1029/2010JG001302.	November 2010
Xiao, J., Q. Zhuang, E. Liang, A.D. McGuire, A. Moody, D.W. Kicklighter, X. Shao, and J.M. Melillo. 2009. Twentieth Century droughts and their impacts on terrestrial carbon cycling in China. Earth Interactions 13(10):1-17. DOI: 10.1175/2009EI275.1 \| Publisher Website	September 2009
Xia, J., A.D. McGuire, D. Lawrence, E. Burke, G. Chen, X. Chen, C. Delire, C. Koven, A. MacDougall, S. Peng, A. Rinke, K. Saito, W. Zhang, R. Alkama, T.J. Bohn, P. Ciais, B. Decharme, I. Gouttevin, T. Hajima, D.J. Hayes, K. Huang. D. Ji, G. Krinner, D.P. Lettenmaier, P.A. Miller, J.C. Moore, B. Smith, T. Sueyoshi, Z. Shi, L. Yan, J. Liang, L. Jiang, Q. Zhang, and Y. Luo. 2017. Terrestrial ecosystem model performance in simulating productivity and it vulnerability to climate change in the northern permafrost region. Journal of Geophysical Research – Biogeosciences 122:430-446, doi:10.1002/2016/JG003384.	February 2017
Wu, W., A. H. Lynch, S. Drobot, J. Maslanik, A. D. McGuire, and U. Hertzfeld. 2007. Comparative analysis of the Western Arctic surface climate among observations and model simulations. Earth Interactions 11(6): 24 pp.	February 2007
Wood, S.A., J. Beringer, L.B. Hutley, A.D. McGuire, A. Van Dijk, and M. Kilinc. 2008. Impacts of fire on forest age and runoff in mountain ash forests. Functional Plant Biology 35:483-492.	August 2008
Wolken, J.M., T.N. Hollingsworth, T.S. Rupp, F.S. Chapin III, S.F. Trainor, T.M Barrett, P.F. Sullivan, A.D. McGuire, E.S. Euskirchen, P.E. Hennon, E.A. Beever, J.S. Conn, L.K. Crone, D.V. D’Amore, N. Fresco, T.A. Hanley, K. Kielland, J.J. Kruse, T. Patterson, E.A.G. Schuur, D.L. Verbyla, and J. Yarie. 2011. Evidence and implications of recent and projected climate change in Alaska’s forest ecosystems. Ecosphere 2(11), Article 124, 35 pp., doi:10.1890/ES11-00288.1.	November 2011
Wolfe, S. A., B. Griffith, and C. A. G. Wolfe. 2000. Response of reindeer and caribou to human activities. Polar Research 19:63-73.	January 2000
Wipfli, MS, and JS Richardson. 2016. Riparian Management and the Conservation of Freshwater Ecosystems, In Conservation of Freshwater Fishes, eds GP Closs, M Krkosek, JD Olden, pp 270-291.	January 2016
Wipfli, M.S., J.P. Hudson, J.P. Caouette, N.L. Mitchell, J.L. Lessard, R.A. Heintz, and D.T. Chaloner. 2010. Salmon carcasses increase stream productivity more than inorganic fertilizer pellets: A test on multiple trophic levels in streamside experimental channels. Transactions of the American Fisheries Society 139:824-839.	March 2010
Wipfli, M.S. and C.V. Baxter. 2010. Linking ecosystems, food webs, and fish production: Subsidies in salmonid watersheds. Fisheries 35(8):373-387.	August 2010
Wipfli, M.S. 2009. Food supplies of stream-dwelling salmonids. Pages 39-52 in Krueger, C.C. and Zimmerman, C.E. (eds.). Pacific Salmon: Ecology and Management of Western Alaska’s Populations. American Fisheries Society Symposium 70.	December 2009
Wipfli, M. S., and J. Musslewhite. 2004. Density of red alder (Alnus rubra) in headwaters influences invertebrate and organic matter subsidies to downstream fish habitats in Alaska. Hydrobiologia. 520:153-163.	April 2004
Wipfli, M. S., J. S. Richardson, and R. J. Naiman. 2007. Ecological linkages between headwaters and downstream ecosystems: transport of organic matter, invertebrates, and wood down headwater channels. Journal of the American Water Resources Association 43: 72-85.	January 2007
Wipfli, M. S., J. P. Hudson, and J. P. Caouette. 2004. Restoring productivity of salmon-based food webs: Contrasting effects of salmon carcass and salmon analog additions on stream-resident salmonids. Transactions of the American Fisheries Society. 133:1440-1454.	November 2004
Wipfli, M. S. 2005. Trophic linkages between headwater forests and downstream fish habitats: implications for forest and fish management. Landscape and Urban Planning. 72:205-213.	February 2005
Wilson, H.M., P.L. Flint, and A.N. Powell. 2007. Coupling contaminants with demography: effects of lead and selenium in Pacific common eiders. Environmental Toxicology and Chemistry 26(7):1410-1417.	June 2007
Wilson, H.M., P.L. Flint, T.L. Moran, and A.N. Powell. 2007. Survival of breeding Pacific common eiders on the Yukon-Kuskokwim Delta, Alaska. Journal of Wildlife Management 71(2): 403-410.	February 2007
Wilson, H. M., P. L. Flint, A. N. Powell, J. B. Grand, and C. L. Moran. 2012. Population ecology of breeding Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska. Wildlife Monographs,182:1-29; DOI: 10.1002/wmon.8	October 2012
Wild, T. C., S. J. Kendall, N. Guldager, and A. N. Powell. 2015. Breeding habitat associations and predicted distribution of a tundra obligate, Smith's Longspur, in the face of changing climate. Condor 117: 3-17. DOI: 10.1650/CONDOR-14-77.1	December 2014
White, R.G., D.E. Russell, B. Griffith, and R.D. Cameron. 2007. Nutritional controls over caribou growth and reproduction in the Arctic: Is the “selfish cow” syndrome an Arctic adaptation? Symposium of the Comparative Nutrition Society 6:213-220.	July 2007
White, R. G., D. E. Russell, B. Griffith, and R. D. Cameron. 2006. Nutritional controls over caribou growth and reproduction in the Arctic: Is the "selfish cow" syndrome an arctic adaptation? Symposium of the Comparative Nutrition Society 6:213-220.	October 2006
Wheeler, M.E., J.A. Barzen, S.M. Crimmins, and T.R. Van Deelen. 2021. Population responses to harvest depend on harvest intensity, demographics, and mate replacement in sandhill cranes. Global Ecology and Conservation 30: e01778 https://doi.org/10.1016/j.gecco.2021.e01778	August 2021
Weiser,E. L. and A. N. Powell. 2011. Evaluating gull diets: a comparison of conventional methods and stable isotope analysis. Journal of Field Ornithology 82(3):297-310.	August 2011
Weiser, E. L. and A. N. Powell. 2011. Reduction of garbage in the diet of nonbreeding glaucous gulls corresponding to a change in waste management, Arctic 64(2): 220-226.	June 2011
Weiser, E. L. and A. N. Powell. 2010. Does garbage in diet improve reproductive output in Glaucous Gulls? Condor 112(3):530-538.	September 2010
Ward, N. K., A. J. Lynch, E. A. Beever, J. Booker, K. L. Bouska, H. Embke, et al. 2023. Reimagining large river management using the Resist–Accept–Direct (RAD) framework in the Upper Mississippi River. Ecological Processes 12:48. https://doi.org/10.1186/s13717-023-00460-x \| Abstract \| Publisher Website	October 2023	<i>Background</i>: Large-river decision-makers are charged with maintaining diverse ecosystem services through unprecedented social-ecological transformations as climate change and other global stressors intensify. The interconnected, dendritic habitats of rivers, which often demarcate jurisdictional boundaries, generate unique management challenges. Here, we explored how the Resist-Accept-Direct (RAD) framework may enhance large-river management by promoting coordinated and deliberate responses to social-ecological trajectories of change. The RAD framework identifies the full decision space, wherein managers may <i>resist </i>change to maintain historical conditions, <i>accept </i>change toward different conditions, or <i>direct </i>change to a specified future with novel conditions. In the Upper Mississippi River System, managers are facing ecosystem transformations from more frequent and extreme high-water events. We illustrate how RAD-informed basin-, reach-, and site-scale decisions could: 1) provide river continuum and cross-spatial scale framing; <i>and</i> 2) open the entire decision space of possible approaches; <i>to</i> 3) enhance coordinated inter-jurisdictional management in response to the trajectory of the Upper Mississippi River hydrograph.<br><i>Results</i>: The RAD framework helps identify plausible long-term trajectories in different reaches (or subbasins) of the river and how the associated social-ecological transformations could be managed by altering site-scale conditions. Strategic reach-scale objectives may reprioritize how, where, and when site conditions (e.g., habitat connectivity, diversity, redundancy) could be altered to contribute to the basin goal, given the basin’s plausible trajectories of change, and vice versa.<br><i>Conclusions</i><b>: </b> When faced with long-term systemic transformations (e.g., > 50 years), RAD helps explicitly consider whether or when the basin vision or goals may no longer be achievable, and <i>direct </i>options may open yet unconsidered potential for the basin. Embedding RAD in hierarchical decision making clarifies that the selection of actions in space and time should be derived from basin-wide goals and reach-scale objectives to ensure that site-scale actions contribute effectively to the larger river habitat mosaic. Embedding RAD thinking in large-river decisions can provide the necessary conduit to link flexibility and innovation at the site scale with stability at larger scales for adaptive governance of changing social-ecological systems.
Wang, W., A. Rinke, J.C. Moore, X. Cui, D. Ji, Q. Li, N. Zhang, C. Wang, S. Zhang, D.M. Lawrence, A.D. McGuire, W. Zhang, C. Delire, C. Koven, K. Saito, A. MacDougall, E. Burke, and B. Decharme. 2016. Diagnostic and model dependent uncertainty of simulated Tibetan permafrost area. The Cryosphere 10:287-306, doi:10.5194/tc-287-2016.	February 2016
Wang, W., A. Rinke, J.C. Moore, D. Ji, X. Cui, S. Peng, D.M. Lawrence, A.D. McGuire, E.J. Burke, X. Chen, B. Decharme, C. Koven, A. MacDougall, K. Saito, W. Zhang, R. Alkama, T.J. Bohn, P. Ciais, C. Delire, I. Gouttevin, T. Hajima, G. Krinner, D.P. Lettenmaier, P.A. Miller, B. Smith, T. Sueyoshi, and A.B. Sherstiukov. Evaluation of air-soil temperature relationships simulated by land surface models during winter across the permafrost region. The Cryosphere 10:1721-1737, doi:10.5194/tc-10-1721-2016.	August 2016
Walther, E.J., Zimmerman, M.S., Falke, J.A., and P.A.H. Westley. Species distributions and the recognition of risk in restoration planning: A case study of salmonid fishes in the Chehalis River, Washington, USA.	August 2022
Walsh, J. E., J. Curry, M. Fahnestock, M. C. Kennicutt II, A. D. McGuire, W. B. Rossow, M. Steele, C. J. Vorosmarty, and R. Wharton. 2001. Enhancing NASA's Contribution to Polar Science: A Review of Polar Geophysical Data Sets. National Academy Press, Washington, DC. 124 pp.	November 2001
Waldrop, M.P., J.W. Harden, M.R. Turetsky, D.G. Petersen, A.D. McGuire, M.J.I. Briones, A.C. Churchill, D.H. Doctor, and L.E. Pruett. 2012. Bacterial and enchytraid abundance accelerate soil carbon turnover along a lowland vegetation gradient in Alaska. Soil Biology and Biochemistry 50:188-198, doi:10.1016/j.soilbio.2012.02.032.	September 2012
Valentine, D. W., K. Kielland, F. S. Chapin, III, A. D. McGuire, and K. Van Cleve. 2006. Patterns of biogeochemistry in Alaskan boreal forests. Pages 241-266 in F. S. Chapin, III, M. W. Oswood, K. Van Cleve, L. A. Viereck, and D. L. Verbyla, eds. Alaska's Changing Boreal Forest. Oxford University Press, New York.	June 2006
Turetsky, M.R., C.C. Treat, M. Waldrop, M. Waddington, J.W. Harden, and A.D. McGuire. 2008. Short-term response of methane fluxes and methanogen activity to water table and soil warming manipulations in an Alaskan peatland. Journal of Geophysical Research-Biogeosciences 113, G00A10, doi:10. 1029/2007JG000496.	August 2008
Turetsky, M.R., B. Bond-Lamberty, E. Euskirchen, J. Talbot, S. Frolking, A.D. McGuire, and E.-S. Tuittila. 2012. The resilience and functional role of moss in boreal and arctic ecosystems. Tansley Review. New Phytologist. In press. 196:49-67, doi:10.1111/j.1469-8137.2012.04254.x.	December 2012
Treat, C.C., S.M. Natali, J. Ernakovich, C.M. Iversen, M. Lupascu, A.D. McGuire, R.J. Norby, T.R. Chowdhury, A. Richter, H. Santruckova, C. Schadel, E.A.G. Schuur, V.L. Sloan, M.R. Turetsky, and M.P. Waldrop. 2015. A pan-Arctic synthesis of CH4 and CO2 production from anoxic soil incubations. Global Change Biology 21:2787-2803, doi:10.1111/gcb12875.	July 2015
Trainor, S.F., M. Calef, D. Natcher, F.S. Chapin III, A.D. McGuire, O. Huntington, P. Duffy, T.S. Rupp, L. DeWilde, M. Kwart, N. Fresco, and A.L. Lovecraft. 2009. Vulnerability and adaptation to climate-related fire impacts in rural and urban interior Alaska. Polar Research 28:100-118.	March 2009
Torvinen, E.S., Falke, J.A., Arp, C.D., Jones, B.M., Whitman, M.S., and C.E. Zimmerman. Lake trout (Salvelinus namaycush) otoliths indicate effects of climate and lake morphology on growth patterns in Arctic lakes. Ecology of Freshwater Fish.	September 2022
Tibbles, M., Falke, J.A., Mahoney, A.R., Robards, M.D., and A.C. Seitz. 2018. An interferometric synthetic aperture radar (InSAR) habitat suitability model to identify overwinter conditions for Coregonine whitefishes in Arctic lagoons. Transactions of the American Fisheries Society 147:1167-1178.	August 2018
Tian, H., J. M. Melillo, D. W. Kicklighter, S. Pan, J. Liu, A. D. McGuire, and B. Moore III. 2003. Regional carbon dynamics in monsoon Asia and its implications for the global carbon cycle. Global and Planetary Change 37:201-217.	July 2003
Tian, H., J. M. Melillo, D. W. Kicklighter, A. D. McGuire, J. Helfrich III, B. Moore III, and C. J. Vorosmarty. 2000. Climatic and biotic controls on annual carbon storage in Amazonian ecosystems. Global Ecology and Biogeography 9:315-336.	April 2000
Thompson, L. M., A. J. Lynch, E. A. Beever, A. C. Engman, J. A. Falke, S. T. Jackson, T. J. Krabbenhoft, D. J. Lawrence, D. Limpinsel, R. T. Magill, T. A. Melvin, J. M. Morton, R. A. Newman, J. Peterson, M. T. Porath, F. J. Rahel, S. A. Sethi, J. L. Wilkening. 2021. When is resistance futile? Resisting, accepting, or directing ecosystem transformation. Fisheries. 46:8-21. DOI: 10.1002/fsh.10506	January 2021
Thompson, C. D., J. Beringer, F. S. Chapin III, and A. D. McGuire. 2004. Relationship of structural complexity to land-surface energy exchange along a gradient from arctic tundra to boreal forest. Journal of Vegetation Science 15:397-406.	March 2004
Thompson, C. C., A. D. McGuire, J. S. Clein, F. S. Chapin III, and J. Beringer. 2005. Net carbon exchange across the arctic tundra-boreal forest transition in Alaska 1981-2000. Mitigation and Adaptation Strategies for Global Change 11:805-827.	October 2005
Thomas, D. L., D. Johnson, and B. Griffith. 2006. A Bayesian random effects discrete-choice model for resource selection: Population level selection inference. Journal of Wildlife Management 70(2):404-412.	May 2006
Taylor, J.M., N.M. Roberts, and S.M. Crimmins. 2022. Assessing Winter Habitat by River Otters Using Aerial Surveys. Wildlife Society Bulletin 46:e1349 https://doi.org/10.1002/wsb.1349.	September 2022
Taylor, A. R., R. B. Lanctot, A. N. Powell, S. J. Kendall, and D. A. Nigro. 2011. Residence time and movements of postbreeding shorebirds on the northern coast of Alaska. Condor 113:779-794. \| Publisher Website	November 2011
Taylor, A. R., R. B. Lanctot, A. N. Powell, F. Huettmann, D. Nigro, and S. J. Kendall. 2010. Distribution and community characteristics of staging shorebirds on the northern coast of Alaska. Arctic 63(4): 451-467.	December 2010
Stratton, M.E., Finkle, H., Falke, J.A., and P.A.H. Westley.Tracking adult Coho Salmon (Oncorhynchus kisutch) to investigate the presence of stock structure and extent of premature migration in the Buskin River Watershed, Alaska. North American Journal of Fisheries Management.	July 2021
Stow, D., A. Hope, A. D. McGuire, D. Verbyla, J. Gamon, K. Huemmrich, S. Houston, C. Racine, M. Sturm, K. Tape, K. Yoshikawa, L. Hinzman, C. Tweedie, B. Noyle, C. Silapaswan, D. Douglas, B. Griffith, G. Jia, H. Epstein, D. Walker, S. Daeschner, A. Petersen, L. Zhou, and R. Myneni. 2004. Remote sensing of vegetation and land-cover changes in Arctic tundra ecosystems. Remote Sensing of Environment 89:281-308.	September 2004
Steen, V. A. and A. N. Powell. 2012. Potential effects of climate change on the distribution of waterbirds in the Prairie Pothole Region, U.S.A. Waterbirds 35(2):217-229.	September 2012
Steen, V. A. and A. N. Powell. 2012. Wetland selection by breeding and foraging Black Terns in the Prairie Pothole Region of the United States. Condor 114:155-165.	February 2012
Sparks, M.M., Westley, P.A.H., Falke, J.A., and T.P. Quinn. 2017. The role of thermal adaptation and phenotypic plasticity for responding to a warming world: insights from common garden experiments in Alaskan sockeye salmon. Global Change Biology. DOI: 10.1111/gcb.13782	December 2017
Sparks, M.M., Falke, J.A., Westley, P.A.H., Adkison, M.D., Bartz, K., Quinn, T.P., Schindler, D.E., and D. Young. 2019. Influences of spawning timing, water temperature, and climatic warming on early life history phenology in western Alaska sockeye salmon. Canadian Journal of Fisheries and Aquatic Sciences. 76:123-135. dx.doi.org/10.1139/cjfas-2017-0468	March 2019
Sloat, M.R., Fraser, D.J., Dunham, J.B., Falke, J.A., Jordan, C.E., McMillan, J.R., and H. Ohms. 2014. Ecological and evolutionary patterns of freshwater maturation in Pacific and Atlantic salmonines. Reviews in Fish Biology and Fisheries 24:689-707.	March 2014
Sitch, S., A. D. McGuire, J. Kimball, N. Gedney, J. Gamon, R. Engstrom, A. Wolf, Q. Zhuang, J. Clein, and K. C. McDonald. 2007. Assessing the carbon balance of circumpolar arctic tundra using remote sensing and process modeling. Ecological Applications 17:213-234.	March 2007
Silapaswan, Q., D. Verbyla, and A. D. McGuire. 2001. Land cover change on the Seward Peninsula: The use of remote sensing to evaluate potential influences of climate change on historical vegetation dynamics. Canadian Journal of Remote Sensing 5:542-554.	July 2001
Shanley CS, S Pyare, MI Goldstein · PB Alaback, DM Albert, CM Beier, TJ Brinkman, RT Edwards, E Hood, A Mackinnon, MV McPhee, TM Patterson, LH Suring, DA Tallmon, MS Wipfli. Climate change implications in the northern coastal temperate rainforest of North America. Climatic Change.	March 2015
Shaftel, R., Mauger, S., Falke, J., Rinella, D., Davis, J., and L. Jones. Thermal diversity of salmon streams in the Matanuska-Susitna Basin, Alaska. Journal of the American Water Resources Association 56(4) 630-646. https://doi.org/10.1111/1752-1688.12839.	August 2020
Sergeant, C.J., Falke, J.A., Bellmore, J.R., Bellmore, R.A., and R.L. Crumley. 2020. A classification of streamflow patterns across the coastal Gulf of Alaska. Water Resources Research. e2019WR026127. https://doi.org/10.1029/2019WR026127.	February 2020
Seiser, P. E., L. K. Duffy, A. D. McGuire, D. D. Roby, G. 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 Bulletin 40:152-164.	July 2000
Scott, J.M., B. Griffith, R.S. Adamcik, D.M. Ashe, B. Czech, R.L. Fischman, P. Gonzalez, J.J. Lawler, A.D. McGuire, and A. Pidgorna. National Wildlife Refuges. 2008. National Wildlife Refuges. Pages 5-1 to 5-100 in: Preliminary Review of Adaptation Options for Climate-Sensitive Ecosystems and Resources. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research [S.H. Julius and J.M West (eds. ), J.S. Baron, B. Griffith, L.A. Joyce, P. Kareiva, B.D. Keller, M.A. Palmer, C.H. Peterson, and J. M. Scott (authors). U.S. Environmental Protection Agency, Washington, DC.	September 2008
Scott, C.A., J.A.K. Mazet, and A.N. Powell. 2010. Health evaluation of western arctic king eiders (Somateria spectabilis). Journal of Wildlife Diseases 46(4): 1290-1294.	October 2010
Schuur, E.A.G., B.W. Abbott, W.B. Bowden, V. Brovkin, P. Camill, J.P. Canadell, J.P. Chanton, F.S. Chapin III, T.R. Christensen, P. Ciais, P.M. Crill, B.T. Crosby, C.I. Czimczik, G. Grosse, J. Harden, D.J. Hayes, G. Hugelius, J.D. Jastrow, J.B. Jones, T. Kleinin, C.D. Koven, G. Krinner, P. Kuhry, D.M. Lawrence, A.D. McGuire, S.M. Natali, J.A. O’Donnell, C.L. Ping, W.J. Riley, A. Rinke, V.E. Romanovsky, A.B.K. Sannel, C. Schadel, K. Schaefer, J. Sky, Z.M. Subin, C. Tarnocai, M. Turetsky, M. Waldrop, K.M. Walter-Anthony, K.P. Wickland, C.J. Wilson, and S.A. Zimov. 2013. Expert assessment of potential permafrost carbon feedback to climate change. Climatic Change 119:359-374. doi:10.1007/s10584-013-0730-7.	July 2013
Schuur, E.A.G., A.D. McGuire, C. Schadel, G. Grosse, J.W. Harden, D.J. Hayes, G. Hugelius, C.D, Koven, P. Kuhry, D.M. Lawrence, S.M. Natali, D. Olefeldt, V.E. Romanovsky, K. Schaefer, M.R. Turetsky, C. Treat, J.E. Vonk. 2015. Climate Change and the Permafrost Carbon Feedback. Nature 520:171-179. doi:10.1038/nature14338.	April 2015
Schoen, E., Wipfli, M., and 15 other coauthors. 2017. Future of Pacific Salmon in the Face of Environmental Change: Lessons from One of the World's Remaining Productive Salmon Regions. Fisheries, 42 (10) 538-553. DOI:10.1080/03632415.2017.1374251	October 2017
Schimel, D., J. Mellilo, H. Tian, A. D. McGuire, D. Kicklighter, T. Kittel, N. Rosenbloom, S. Running, P. Thornton, D. Ojima, W. Parton, R. Kelly, M. Sykes, R. Neilson, and B. Rizzo. 2000. Carbon storage by the natural and agricultural ecosystems of the US (1980-1993). Science 287:2004-2006.	April 2000
Schimel, D, D.R. Strong, A.M. Ellison, D.P.C. Peters, S. Silver, E.A. Johnson, J. Belnap, A.T. Classen, T.E. Essington, A.O. Finley, B.D. Inouye, E.H. Stanley, and the Editorial Boards of Ecology, Ecological Applications, Ecological Monographs, Ecosphere, and Frontiers in Ecology and the Environment (including A.D. McGuire). 2014. Editors are Editors, Not Oracles. Bulletin of the Ecological Society of America 95:342-346.	October 2014
Scharhag, J.M., C. Sartini, S.M. Crimmins, S.E. Hygnstrom, and J.B. Stetz. 2021. Characteristics of non-fatal attacks by black bears: conterminous United States, 2000-2017. Human-Wildlife Interactions 15:191-202.	April 2021
Schambler, J. L., P.L. Flint, and A. N. Powell. 2010. Patterns of use and distribution of king eiders and black scoters during the annual cycle in northeastern Bristol Bay, Alaska. Marine Biology 157:2169-2176, DOI 10.1007/s00227-010-1481-x	September 2010
Russell, D., G. Kofinas, and B. Griffith. 2000. Need and opportunity for a North American caribou knowledge cooperative. Polar Research 19:117-129.	January 2000
Rupp, T. S., X. Chen, M. Olson, and A. D. McGuire. 2007. Sensitivity of simulated boreal fire dynamics to uncertainties in climate drivers. Earth Interactions 11, Paper 3. 21 pp.	February 2007
Rosenberger, A.E., J.B. Dunham, M.S. Wipfli, and J.M. Buffington. 2011. Effects of wildfire and channel reorganization on drifting macroinvertebrates and predation by trout in central Idaho streams a decade after disturbance. Northwest Science 85(1):55-63.	April 2011
Rosenberger, A.E., J.B. Dunham, M.S. Wipfli, and J.M. Buffington. 2011. Effects of wildfire and channel reorganization on drifting macroinvertebrates and predation by trout in central Idaho streams a decade after disturbance. Northwest Science 85: 55-63.	July 2011
Roon, D, M Wipfli, J Kruse. 2018. Riparian defoliation by the invasive green alder sawfly influences terrestrial prey subsidies to salmon streams. Ecology of Freshwater Fish. 27:963–975. DOI: 10.1111/eff.12407 \| Abstract	September 2018	Resource subsidies often have major consequences on recipient species and food webs. While invasive species are known to negatively affect some species and ecosystems, their influences on prey subsidies and effects on recipient consumers are unknown. The green alder sawfly (Monsoma pulveratum) is a recently introduced invasive wasp responsible for defoliating riparian thin-leaf alder (Alnus tenuifolia) stands across southcentral Alaska. To examine the effect of riparian alder defoliation by the larval green alder sawfly on the flow of terrestrial invertebrate prey subsidies to stream salmonids, we sampled 1) terrestrial invertebrate communities on riparian alder foliage, 2) their subsidies to streams, and 3) prey consumption by juvenile Coho Salmon (Oncorhynchus kisutch) along stream reaches with low and high densities of this invasive Hymenopteran. Sawfly biomass peaked mid-summer in all three categories—on riparian alder foliage, as terrestrial subsidies to streams, and ingested by juvenile Coho Salmon. Broader terrestrial invertebrate communities did not decline from sawfly defoliation; instead, invasive sawflies were supplemental prey for juvenile Coho Salmon mid-summer, on top of the background invertebrate subsidy. Our study showed that invasive green alder sawfly defoliation changed terrestrial prey subsidies for these stream fishes, as predicted. Considering that this study was conducted at the early stage of sawfly invasion, the loss of riparian alder is expected to have other ecological consequences that merit further investigation. However, in this case, invasive sawflies did not affect terrestrial subsidies to stream consumers in these study streams in southcentral Alaska.
Roon DA, Wipfli MS, Wurtz TL. Effects of invasive European bird cherry (Prunus padus) on leaf litter processing by aquatic invertebrate shredder communities in urban Alaskan streams. Hydrobiologia.	June 2016
Roon DA, Wipfli MS, Wurtz TL, Blanchard AL. Invasive European bird cherry disrupts stream-riparian linkages: effects on terrestrial invertebrate prey subsidies for juvenile coho salmon.	July 2016
Romanovsky, V., K. Isaksen, D. Drozdov, O. Anisimov, A. Instanes, M. Leibman, A.D. McGuire, N. Shiklomanov, S. Smith, D. Walker, and contributing authors. 2017. Changing permafrost and its impacts. Chapter 3 in Snow, Water, Ice, and Permafrost in the Arctic (SWIPA) 2017. Pages 65-102. Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway.	November 2017
Robertson, G.P., S.L. Collins, D.R. Foster, N. Brokaw, H.W. Ducklow, T.L Gragson, C. Gries, S.K. Hamilton, A.D. McGuire, J.C. Moore, E.H. Stanley, R.B. Waide, and M.W. Williams. 2012. Long Term Ecological Research in a Human-Dominated World. BioScience 62:342-353.	April 2012
Roach, J.K., B. Griffith, and D. Verbyla. 2012. Comparison of three methods for long-term monitoring of boreal lake area using Landsat TM and ETM+ imagery. Canadian Journal of Remote Sensing 38(4): 427-440. \| Abstract \| Publisher Website	August 2012	Programs to monitor lake area change are becoming increasingly important in high latitude regions, and their development often requires evaluating tradeoffs among different approaches in terms of accuracy of measurement, consistency across multiple users over long time periods, and efficiency. We compared three supervised methods for lake classification from Landsat imagery (density slicing, classification trees, and feature extraction). The accuracy of lake area and number estimates was evaluated relative to high-resolution aerial photography acquired within two days of satellite overpasses. The shortwave infrared band 5 was better at separating surface water from nonwater when used alone than when combined with other spectral bands. The simplest of the three methods, density slicing, performed best overall. The classification tree method resulted in the most omission errors (approx. 2), feature extraction resulted in the most commission errors (approx. 4), and density slicing had the least directional bias (approx. half of the lakes with overestimated area and half of the lakes with underestimated area). Feature extraction was the least consistent across training sets (i.e., large standard error among different training sets). Density slicing was the best of the three at classifying small lakes as evidenced by its lower optimal minimum lake size criterion of 5850 m2 compared with the other methods (8550 m2). Contrary to conventional wisdom, the use of additional spectral bands and a more sophisticated method not only required additional processing effort but also had a cost in terms of the accuracy and consistency of lake classifications.
Roach, J., B. Griffith, D. Verbyla, and J. Jones. 2011. Mechanisms influencing changes in lake area in the Alaska boreal forest. Global Change Biology 17:2567-2583. doi: 10.1111/j.1365-2486.2011.02446.x \| Abstract \| Download \| Publisher Website	May 2011	During the past 50 years, the number and area of lakes have declined in several regions in boreal forests. However, there has been substantial finer-scale heterogeneity; some lakes decreased in area, some showed no trend, and others increased. The objective of this study was to identify the primary mechanisms underlying heterogeneous trends in closed-basin lake area. Eight lake characteristics (d18O, electrical conductivity, surface : volume index, bank slope, floating mat width, peat depth, thaw depth at shoreline, and thaw depth at the forest boundary) were compared for 15 lake pairs in Alaskan boreal forest where one lake had decreased in area since 1950, and the other had not. Mean differences in characteristics between paired lakes were used to identify the most likely of nine mechanistic scenarios that combined three potential mechanisms for decreasing lake area (talik drainage, surface water evaporation, and terrestrialization) with three potential mechanisms for nondecreasing lake area (subpermafrost groundwater recharge through an open talik, stable permafrost, and thermokarst). A priori expectations of the direction of mean differences between decreasing and nondecreasing paired lakes were generated for each scenario. Decreasing lakes had significantly greater electrical conductivity, greater surface : volume indices, shallower bank slopes, wider floating mats, greater peat depths, and shallower thaw depths at the forest boundary. These results indicated that the most likely scenario was terrestrialization as the mechanism for lake area reduction combined with thermokarst as the mechanism for nondecreasing lake area. Terrestrialization and thermokarst may have been enhanced by recent warming which has both accelerated permafrost thawing and lengthened the growing season, thereby increasing plant growth, floatingmat encroachment, transpiration rates, and the accumulation of organic matter in lake basins. The transition to peatlands associated with terrestrialization may provide a transient increase in carbon storage enhancing the role of northern ecosystems as major stores of global carbon.
Roach, J. and B. Griffith. 2015. Climate-induced lake drying causes heterogeneous reductions in waterfowl species richness. Landscape Ecology 30:1005–1022.	May 2015
Roach, J. K., B. Griffith, and D. Verbyla. Landscape influences on climate-related lake shrinkage at high latitudes. Global Change Biology doi: 10.1111/gcb.12196 \| Abstract \| Download	April 2013	Climate-related declines in lake area have been identified across circumpolar regions and have been characterized by substantial spatial heterogeneity. An improved understanding of the mechanisms underlying lake area trends is necessary to predict where change is most likely to occur and to identify implications for high latitude reservoirs of carbon. Here, using a population of ca. 2300 lakes with statistically significant increasing and decreasing lake area trends spanning longitudinal and latitudinal gradients of ca. 1000 km in Alaska, we present evidence for a mechanism of lake area decline that involves the loss of surface water to groundwater systems. We show that lakes with significant declines in lake area were more likely to be located: (1) in burned areas; (2) on coarser, well-drained soils; and (3) farther from rivers compared to lakes that were increasing. These results indicate that postfire processes such as permafrost degradation, which also results from a warming climate, may promote lake drainage, particularly in coarse-textured soils and farther from rivers where overland flooding is less likely and downslope flow paths and negative hydraulic gradients between surface water and groundwater systems are more common. Movement of surface water to groundwater systems may lead to a deepening of subsurface flow paths and longer hydraulic residence time which has been linked to increased soil respiration and CO2 release to the atmosphere. By quantifying relationships between statewide coarse resolution maps of landscape characteristics and spatially heterogeneous responses of lakes to environmental change, we provide a means to identify at-risk lakes and landscapes and plan for a changing climate.
Riordan, B., D. Verbyla, and A. D. McGuire. 2006. Shrinking ponds in subarctic Alaska based on the 1950-2002 remotely sensed images. Journal of Geophysical Research - Biogeosciences.	January 2006
Rinella, D.J., M.S. Wipfli, C.A. Stricker, and R. A. Heintz. 2011. Pacific salmon runs and consumer fitness: growth and energy storage in stream-dwelling salmonids increase with salmon spawner density. Canadian Journal of Fisheries and Aquatic Sciences. 69:73-84.	December 2011
Rinella, D., Wipfli, M., Walker, C., Stricker, C., Heintz, R. 2013. Seasonal persistence of marine-derived nutrients in south-central Alaskan salmon streams. Ecosphere.	October 2013
Rine, K, M Wipfli, E Schoen, C Sticker, T Nightengale. 2016. Trophic pathways supporting juvenile Chinook and Coho salmon in the glacial Susitna River, Alaska: patterns of freshwater, marine, and terrestrial resource use across a seasonally dynamic habitat mosaic. Canadian Journal of Fisheries and Aquatic Sciences. \| Abstract	August 2016	Contributions of terrestrial, freshwater, and marine-derived prey resources to stream fishes vary over time and space, altering the energy pathways that regulate production. In this study we determined large-scale use of these resources by juvenile Chinook and Coho salmon (Oncorhynchus tshawytscha and O. kisutch) in the glacial Susitna River, Alaska. We resolved spatial and temporal trophic patterns among multiple macrohabitat types along a 97-km segment of the river corridor via stable isotope and stomach content analyses. Juvenile salmon were largely supported by freshwater-derived resources, and secondarily by marine and terrestrial sources. The relative contribution of marine-derived prey to rearing salmon was greatest in the fall within off-channel macrohabitats, whereas the contributions of terrestrial invertebrate prey were generally greatest during mid-summer, across all macrohabitats. No longitudinal (upstream-downstream) diet pattern was discernable. These results highlight the large-scale spatial and seasonal patterns of energy flow and the dynamic interplay of pulsed marine and terrestrial prey subsidies to juvenile Chinook and Coho salmon in a large, complex, and relatively pristine glacial river.
Richardson, N, AH Beaudreau, MS Wipfli, H Finkle. 2016. Temporal variation in diets and use of benthic resources by juvenile Sockeye Salmon and a potential competitor, Threespine Stickleback, in Afognak Lake, Alaska. Ecology of Freshwater Fish.	August 2016
Richardson, JS, MS Wipfli. 2016. Getting Quantitative about Consequences of Cross-Ecosystem Resource Subsidies on Recipient Consumers. Canadian Journal of Fisheries and Aquatic Sciences.	September 2016
Rawlins, M., A.D. McGuire, J.S. Kimball, P. Dass, D. Lawrence, E. Burke, X. Chen, C. Delire, C. Koven, A. MacDougall, S. Peng, A. Rinke, K. Saito, W. Zhang, R. Alkama, T.J. Bohn, P. Ciais, B. Decharme, I. Gouttevin, T. Hajima, D. Ji, G. Krinner, D.P. Lettenmaier, P. Miller, J.C. Moore, B. Smith13, T. Sueyoshi. 2015. Assessment of model estimates of land-atmosphere CO2 exchange across northern Eurasia. Biogeosciences 12:4385-4405. doi:10.5194/bg-12-1-2015.	July 2015
Prentice, I. C., G. D. Farquhar, M. J. R. Fasham, M. L. Goulden, M. Heimann, V. J. Jaramillo, H. S. Kheshgi, C. LeQuere, R. J. Scholes, D. W. R. Wallace, and contributing authors (including A. D. McGuire). 2001. The carbon cycle and atmospheric carbon dioxide. Pages 183-237 in J. T. Houghton et al., eds. Climate Change 2001: Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK and New York, NY, USA.	October 2001
Powell, J, M Wipfli, K Criddle, E Schoen. 2018. Will Alaska’s Fisheries Regime Prove Resilient? Kenai River Fishery Management as a Model for Adaptive Governance. Fisheries 43: 26-30.	January 2018
Powell, Abby N. and Robert S. Suydam. 2012. King Eider (Somateria spectabilis), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/491 doi:10.2173/bna.491 \| Publisher Website	September 2012
Powell, A. N., C. L. Fritz, B. L. Peterson, and J. M. Terp. 2002. Status of breeding and wintering snowy plovers in San Diego County, California, 1994-1999. Journal of Field Ornithology 73(2):156-165.	August 2002
Powell, A. N. 2006. Are southern California's fragmented salt marshes capable of sustaining endemic bird populations? In Vertebrates of the Tidal Marshes, Studies in Avian Biology 32: 198-204.	September 2006
Powell, A. N. 2005. Up, down, or stable: populations of beach and estuarine birds in southern California. Pages 17-28 in Kus, Barbara E., and Beyers, Jan L., technical coordinators. 2005. Planning for Biodiversity: Bringing Research and Management Together: Proceedings of a symposium for the South Coast Ecoregion. Gen. Tech. Rep. PSW-GTR-195. Albany, CA: Pacific Southwest Research Station, Forest Service, U. S. Department of Agriculture; 274 p.	May 2006
Powell, A. N. 2002. Book Review. Prairie Birds: Fragile Splendor in the Great Plains, by Paul A. Johnsgard. Condor 104:224-225.	February 2002
Powell, A. N. 2001. Habitat characteristics and nest success of snowy plovers nesting in association with California least tern colonies. Condor 103:785-792.	June 2001
Potter, C., S. Wang, N. T. Nikolov, A. D. McGuire, J. Liu, A. W. King, J. S. Kimball, R. F. Grant, S. E. Frolking, J. S. Clein, J. M. Chen, and J. S. Amthor. 2001. Comparison of boreal ecosystem model sensitivity to variability in climate and forest site parameters. Journal of Geophysical Research - Atmospheres 106:33, 671-33, 688.	December 2001
Post, E., M.C. Forchhammer, M.S. Bret-Harte, T.V. Callaghan, T.R. Christensen, B. Elberling, A.D. Fox, O. Gilg, D.S. Hik, T.T. Hoye, R.A. Ims, E. Jeppesen, D.R. Klein, J. Madsen, A.D. McGuire, et al. 2009. Ecological dynamics across the Arctic associated with recent climate change. Science 325:1355-1358. \| Publisher Website	September 2009
Phillips, L.M., A.N. Powell, E.J. Taylor, and E.A. Rexstad. 2007. Use of the Beaufort Sea by king eiders breeding on the North Slope of Alaska. Journal of Wildlife Management 71(6):1892-1898.	July 2007
Phillips, L.M. and A.N. Powell. 2009. Brood rearing ecology of King Eiders on the North Slope of Alaska. The Wilson Journal of Ornithology 121(2):430-434.	June 2009
Phillips, L. M., and A. N. Powell. 2006. Evidence of wing molt and breeding site fidelity in King Eiders. Waterbirds 29(2):148-153.	July 2006
Phillips, L. M., A. N. Powell, and E. A. Rexstad. 2006. Large-scale movements and habitat characteristics of King Eiders throughout the nonbreeding period. Condor 108: 887-900.	October 2006
Peterson, E. E., Ver Hoef, J. M., Isaak, D. J., Falke, J. A., Fortin, M., Jordan, C., McNyset, K., Monestiez, P., Ruesch, A. S., Sengupta, A., Steel, A., Theobald, D. M., Torgersen, C. E., and S. J. Wenger. 2013. Modelling dendritic ecological networks in space: an integrated network perspective. Ecology Letters 16:707-719.	May 2013
Perkin, J.S., Gido, K.B., Falke, J.A., Fausch, K.D., Crockett, H., Johnson, E.R., and J. Sanderson. 2017. Groundwater pumping shrinks Great Plains stream fish assemblages. Proceedings of the National Academy of Sciences 114(28):7373-7378. doi: 10.1073/pnas.1618936114	July 2017
Perez-Garcia, J., L. A. Joyce, and A. D. McGuire. 2002. Integrated ecological economic assessments at the global scale: Lessons learned and temporal uncertainties. Forest Ecology and Management 162:105-115.	July 2002
Perez-Garcia, J., L. A. Joyce, A. D. McGuire, and X. Xiao. 2002. Impacts of emission controls on the global forest sector. Climatic Change 54:439-461.	July 2002
Peng, S., P. Ciais, G. Krinner, T. Wang, I. Gouttevin, A.D. McGuire, D. Lawrence, E. Burke, X. Chen, B. Decharme, C. Koven, A. MacDougall, A. Rinke, K. Saito, W. Zhang, R. Alkama, T.J. Bohn, C. Delire, T. Hajima, D. Ji, D.P. Lettenmaier, P.A. Miller, J.C. Moore, B. Smith, T. Sueyoshi. 2016. Simulated high-latitude soil thermal dynamics during the past four decades. The Cryosphere 10:179-192, doi:10.5194/tc-10-179-2016.	January 2016
Peirce, J.M., E.O. Otis, M.S. Wipfli, and E.H. Follmann. 2011. Radio-telemetry as a tool for estimating stream life and predation by brown bears for chum salmon at McNeil River, Alaska. North American Journal of Fisheries Management 31(2):315-322.	May 2011
Peirce J.M., Otis E.O., Wipfli M.S., Follmann E.H. 2013. Interactions between brown bears and chum salmon at McNeil River, Alaska. Ursus 24(1):42-53.	April 2013
Paukert, C. P., J. D. Olden, A. J. Lynch, D. Brashears, R. C. Chambers, C. Chu, M. Daly, K. L. Dibble, J. Falke, D. Issak, P. Jacobson, O. P. Jensen, and D. Munroe. 2021. Climate change effects on North American fish and fisheries to inform adaptation strategies. Fisheries 46: 449-464. https://doi.org/10.1002/fsh.10668	September 2021
Pastick, N.J., P. Duffy, H. Genet, T.S. Rupp, B.K. Wylie, K.D. Johnson, M.T. Jorgenson, N. Bliss, A.D. McGuire, E.E. Jafarov, and J.F. Knight. 2017. Historical and projected trends in landscape drivers affecting carbon dynamics in Alaska. Ecological Applications 27:1383-1402, doi:10.1002/eap.1538.	July 2017
Parmentier, F.-J.W., W. Zhang, Y. Mi, X. Zhu, J. van Huissteden, D.J. Hayes, Q. Zhuang, T.R. Christensen, and A.D. McGuire. 2015. Rising methane emissions from northern wetlands associated with sea ice decline. Geophysical Research Letters 42:7214-7222, doi:10.1002/2015GL065013.	October 2015
Parmentier, F.-J.W., T.R. Christensen, L.L. Sorensen, S. Rysgaard, A.D. McGuire, P.A. Miller, and D.A. Walker. 2013. The impact of lower sea ice extent on arctic greenhouse gas exchange. Nature Climate Change 3:195-202. doi:10.1038/nclimate1784.	March 2013
Pan, Y., R.A. Birdsey, J. Fang, R. Houghton, P.E. Kauppi, W.A. Kurz, O.L. Phillips, A. Shvidenko, S.L. Lewis, J.G. Canadell, P. Ciais, R.B. Jackson, S. Pacala, A.D. McGuire, S. Piao, A. Rautiainen, S. Sitch, and D. Hayes. 2011. A large and persistent carbon sink in the world’s forests. Science 333:988-993, doi:10.1126/science.1201609.	August 2011
Pan, Y., A. D. McGuire, J. M. Melillo, D. W. Kicklighter, S. Sitch, and I. C. Prentice. 2002. A biogeochemistry-based successional model and its application along a moisture gradient in the continental United States. Journal of Vegetation Science 13:369-380.	July 2002
Pan, Y. -D., J. M. Melillo, D. W. Kicklighter, X. -M. Xiao, and A. D. McGuire. 2001. Modeling structural and functional responses of terrestrial ecosystems in China to changes in climate and atmospheric CO2. Acta Phytoecologica Sinica 25(2):175-189.	April 2001
O’Donnell, J.A., M.T. Jorgenson, J.W. Harden, A.D. McGuire, M.Z. Kanevskiy, and K.P. Wickland. 2012. The effects of permafrost thaw on soil hydrologic, thermal and carbon dynamics in an Alaskan peatland. Ecosystems 15:213-229. DOI: 10.1007/s10021-011-9504-0.	March 2012
O’Donnell, J.A., J.W. Harden, A.D. McGuire, and V.E. Romanovsky. 2011. Exploring the sensitivity of soil carbon dynamics to climate change, fire disturbance and permafrost thaw in a black spruce ecosystem. Biogeosciences 8 (1367-1382). \| Publisher Website	May 2011
O’Donnell, J.A., J.W. Harden, A.D. McGuire, M.Z. Kanevskiy, M.T. Jorgenson, and X. Xu. 2011. The effect of fire and permafrost interactions on soil carbon accumulation in an upland black spruce ecosystem of interior Alaska: Implications for post-thaw carbon loss. Global Change Biology 17:1461-1474, doi: 10.1111/j.1365-2486.2010.02358.x.	January 2011
Overland, J., J. Calder, F. Fetterer, A. D. McGuire, J. Morison, J. Richter-Menge, N. Soreide, and J. Walsh. 2003. SEARCH Workshop on Large-Scale Atmosphere/Cryosphere Observations. Bulletin of the American Meteorological Society 84:1077-1081.	August 2003
Orlikowska, E. H., R. L. Deal, P. H. Hennon, and M. S. Wipfli. 2004. Role of red alder in riparian forest structure along headwater streams in southeastern Alaska. Northwest Science. 78:111-123.	May 2004
Oppel, S., R. Federer, D. O'Brien, A. Powell, and T. Hollmen. 2010. Effects of lipid extraction on stable isotope ratios in avian egg yolk – is arithmetic correction an alternative? Auk 157:72-78.	January 2010
Oppel, S., D.L. Dickson, and A.N. Powell. 2009. International importance of the eastern Chukchi Sea as a staging area for migrating king eiders. Polar Biology 32:775-783.	February 2009
Oppel, S., A.N. Powell, and D.L. Dickson. 2009. Using an algorithmic model to reveal individually variable movement decisions in a wintering sea duck. Journal of Animal Ecology 78:524-531. doi: 10.1111/j.1365-2656.2008.01513.x	January 2009
Oppel, S., A.N. Powell, and D.L. Dickson. 2008. Timing and distance of king eider migration and winter movements. Condor 110:296-305.	July 2008
Oppel, S., A. Powell, and D. O'Brien. 2008. Using eggshell membranes as a non-invasive tool to investigate the source of nutrients in avian eggs. Journal of Ornithology. DOI 10. 1007/s10336-008-0325-7.	August 2008
Oppel, S., A. N. Powell, and D. O'Brien. 2010. King eiders use an income strategy for egg production: a case study for incorporating individual dietary variation into nutrient allocation research. Oecologia 164:1-12, DOI 10.1007/s00442-010-1619-z	April 2010
Oppel, S., A. N. Powell, and M. G. Butler. 2011. King Eider foraging effort during the pre-breeding period in Alaska. Condor 113:52-60.	January 2011
Oppel, S. and A.N. Powell. 2010. Carbon isotope turnover in blood as a measure of arrival time in migratory birds using isotopically distinct environments. Journal of Ornithology 151:123-131, DOI 10.1007/s10336-009-0434-y.	July 2009
Oppel, S. and A.N. Powell. 2009. Does winter region affect nest survival of king eiders in northern Alaska? Polar Biology 32:1203-1209. DOI 10.1007/s00300-009-0618-1.	August 2009
Oppel, S. and A.N. Powell. 2008. Assigning king eiders to wintering regions in the Bering Sea using stable isotopes of feathers and claws. Marine Ecology Progress Series 373:149-156. doi: 10.3354/meps07744.	December 2008
Oppel, S. and A. N. Powell. 2010. Age-specific survival estimates for king eiders derived from satellite telemetry. Condor 112(2):323-330.	June 2010
Olson, L.O., T.R. Van Deelen, D.J. Storm, and S.M. Crimmins. 2021. Understanding environmental patterns of canid predation on white-tailed deer (Odocoileus virginianus). Canadian Journal of Zoology 99:912-920. https://doi.org/10.1139/cjz-2021-0024	September 2021
Olefeldt, D., S. Goswami, G. Grosse, D. Hayes, G. Hugelius, P. Kuhry, A.D. McGuire, V.E. Romanovsky, A.B.K. Sannel, E.A.G. Schuur, and M.R. Turetsky. 2016. Circumpolar distribution and carbon storage of thermokarst landscapes. Nature Communications 7:13043, 11 pages, doi:10.1038/ncomms13043.	October 2016
Olefeldt, D., M.R. Turetsky, P.M. Crill, and A.D. McGuire. 2013. Environmental and physical controls on northern high latitude methane fluxes across permafrost zones. Global Change Biology 19:589-603. doi:10.1111/gcb.12071.	February 2013
Olefeldt, D., E.S. Euskirchen, J. Harden, E. Kane, A.D. McGuire, M.P. Waldrop, and M.R. Turetsky. 2017. A decade of boreal rich fen greenhouse gas fluxes in response to natural and experimental water table variability. Global Change Biology 23:2428-2440, doi:10.1111/gcb.13612.	June 2017
O'Donnell, J.A., V.E. Romanovsky, J.W. Harden, and A.D. McGuire. 2009. The effect of moisture content on the thermal conductivity of moss and organic soil horizons from black spruce ecosystems in interior Alaska. Soil Science 174(12):646-651. \| Publisher Website	December 2009
Nolan, M., R. Churchwell, J. Adams, J. McClelland, K. D. Tape, S. Kendall, A. Powell, K. Dunton, D. Payer, and P. Martin. Predicting the impact of glacier loss on fish, birds, floodplains, and estuaries in the Arctic National Wildlife Refuge, p. 49-55. In C. N. Medley, C. N., G. Patterson, and M. J. Parker [eds.], Observing, Studying, and Managing for Change - Proceedings of the Fourth Interagency Conference on Research in the Watershed. US Geological Survey Scientific Investigations Report 2011-5169, Reston, VA.	October 2011
Nicol, S., J. K. Roach, and B. Griffith. Spatial heterogeneity in power to detect changes in lake area in Alaskan National Wildlife Refuges. Landscape Ecology. DOI 10.1007/s10980-013-9853-5 \| Abstract	February 2013	Over the past 50 years, the number and size of high-latitude lakes have decreased throughout many regions; however, individual lake trends have been variable in direction and magnitude. This spatial heterogeneity in lake change makes statistical detection of temporal trends challenging, particularly in small analysis areas where weak trends are difficult to separate from inter- and intra-annual variability. Factors affecting trend detection include inherent variability, trend magnitude, and sample size. In this paper, we investigated how the statistical power to detect average linear trends in lake size of 0.5, 1.0 and 2.0 %/year was affected by the size of the analysis area and the number of years of monitoring in National Wildlife Refuges in Alaska. We estimated power for large (930–4,560 sq km) study areas within refuges and for 2.6, 12.9, and 25.9 sq km cells nested within study areas over temporal extents of 4–50 years. We found that: (1) trends in study areas could be detected within 5–15 years, (2) trends smaller than 2.0 %/year would take[50 years to detect in cells within study areas, and (3) there was substantial spatial variation in the time required to detect change among cells. Power was particularly low in the smallest cells which typically had the fewest lakes. Because small but ecologically meaningful trends may take decades to detect, early establishment of long-term monitoring will enhance power to detect change. Our results have broad applicability and our method is useful for any study involving change detection among variable spatial and temporal extents.
Nicol, S., B. Griffith, J. Austen, and C. Hunter. 2014. Optimal strategies for managing water levels on riverine national wildlife refuges in a changing climate. Climatic Change. DOI 10.1007/s10584-013-1033-8	March 2014
Nicholson, C. R., M. D. Berman, C. T. West, G. P. Kofinas, B. Griffith, S. Russell, D. Dugan. Linking Seasonal Climatic Conditions to Caribou Availability: Modeling Sequential Movement Using Satellite-Relocation Data. Ecology and Society, http://dx.doi.org/10.5751/ES-05376-180201 \| Abstract	April 2013	Livelihood systems that depend on mobile resources must constantly adapt to change. For people living in settled communities, environmental changes that affect the distribution of a migratory species may reduce the availability of a primary food source, with the potential to destabilize the regional social-ecological system. North American indigenous communities harvesting arctic caribou represent a social-ecological system for which food security depends on movement patterns of a migratory resource. Quantitative assessments of physical, ecological, and human effects on caribou distribution have proven difficult because of the significant inter-annual variability in seasonal caribou movement patterns. We developed and evaluated a modeling approach for simulating the distribution of a migratory herd throughout its annual cycle over a multi-year period. Beginning with previously defined spatial and temporal scales for the model, we used satellite collar locations for the Porcupine Caribou Herd (Rangifer tarandus granti) to compute and analyze the season-by-season probabilities of movement between habitat zones under two alternative climatic conditions for each season. Using these contingent movement probability tables, we simulated the sequence of caribou movements across the landscape in response to externally-imposed climate drivers. Statistical tests of predicted seasonal caribou distribution showed that the predicted distributions were consistent with observed of distribution, and significantly correlated with subsistence harvest levels for three user communities. Our approach could be applied to other caribou herds and could be adapted for simulating the distribution of other ungulates and species with similarly large inter-annual variability in the use of their range.
Neuswanger, J, Wipfli, MS, Rosenberger, AE, and Hughes NF. 2016. Measuring fish and their habitats: Versatile 2-D and 3-D video techniques with user-friendly software. Canadian Journal of Fisheries and Aquatic Sciences 10.1139/cjfas-2016-0010.	June 2016
Neuswanger, J, Wipfli MS, Rosenberger AE, Hughes NF. Mechanisms of drift-feeding behavior in juvenile Chinook salmon and the role of inedible debris in a clear-water Alaskan stream. Environmental Biology of Fishes 97:489-503.	January 2014
Neuswanger, J, M Wipfli, M Evenson, N Hughes, A Rosenberger. 2015. High summer stream discharge strongly correlates with low productivity of stream-type Chinook salmon in two Alaskan rivers in the Yukon drainage. Canadian Journal of Fisheries and Aquatic Sciences 72:1125-1137.	April 2015
Myers-Smith, I.H., J.W. Harden, M. Wilmking, C.C. Fuller, A.D. McGuire, and F.S. Chapin III. 2008. Wetland succession in a permafrost collapse: Interactions between fire and thermokarst. Biogeosciences 5:1273-1286.	September 2008
Myers-Smith, I.H., A.D. McGuire, J.W. Harden, and F.S. Chapin III. 2007. Influence of disturbance on carbon exchange in a permafrost collapse and adjacent burned forest. Journal of Geophysical Research, Vol. 112, G04017, doi:10.1029/2007JG000423	December 2007
Myers, B.E., Lynch, A.J., Bunnell, D.B., Chu, C., Falke, J.A., Kovach, R.P., Krabbenhoft, T.J., Kwak, T.J., and C.P. Paukert. 2017. Global synthesis of the projected and documented effects of climate change on inland fishes. Reviews in Fish Biology and Fisheries 27:339–361.DOI 10.1007/s11160-017-9476-z	June 2017
Morse, J. A., A. N. Powell, and M. D. Tetreau. 2006. Productivity of black oystercatchers: effects of recreational disturbance in a National Park. Condor 108:623-633.	August 2006
Mishra, U., J.D. Jastrow, R. Matamala, G. Hugelius, C.D. Koven, J.W. Harden, C.L. Ping, G.J. Michaelson, Z. Fan, R.M. Miller, A.D. McGuire, C. Tarnocai, P. Kuhry, W.J. Riley, K. Schaefer, E.A.G. Schuur, M.T. Jorgenson, and L.D. Hinzman. 2013. Empirical estimates to reduce modeling uncertainties of soil organic carbon in permafrost regions: A review of recent progress and remaining challenges. Environmental Research Letters 8, 9 pages, doi:10.1088/1748-9326/8/3/035020.	July 2013
Metcalfe, A.N., T.A. Kennedy, G.A. Mendez and J.D. and Muehlbauer. 2022. Applied citizen science in freshwater research. WIREs Water e1578:1-11. https://doi.org/10.1002/wat2.1578 \| Abstract \| Publisher Website	January 2022	Worldwide, scientists are increasingly collaborating with the general public. Citizen science methods are readily applicable to freshwater research, monitoring, and education. In addition to providing cost-effective data on spatial and temporal scales that are otherwise unattainable, citizen science provides unique opportunities for engagement with local communities and stakeholders in resource management and decision-making. However, these methods are not infallible. Citizen science projects require deliberate planning in order to collect high data quality and sustain meaningful community partnerships. Citizen science practitioners also have an ethical responsibility to ensure that projects are not putting the safety of participants at stake. We discuss here how citizen science is being applied in freshwater research, emerging challenges in project planning and implementation, as well as how citizen science is shaping public understanding, policy, and management of freshwaters.
Metcalfe, A. N., J. D. Muehlbauer, M. A. Ford, and T. A. Kennedy. 2023. Colorado River Basin. Pages 462-509 in M. D. Delong, T. D. Jardine, A. C. Benke and C. E. Cushing (editors). Rivers of North America. Academic Press, San Diego, California, USA.	April 2023
Metcalfe, A. N., C. A. Fritzinger, T. J. Weller, M. J. Dodrill, J. D. Muehlbauer, C. B. Yackulic, P. B. Holton, C. M. Szydlo, L. E. Durning, J. B. Sankey, and T. A. Kennedy. 2023. Insectivorous bat foraging tracks the availability of aquatic flies (Diptera). The Journal of Wildlife Management 87:e22414. https://doi.org/https://doi.org/10.1002/jwmg.22414 \| Abstract	May 2023	Approximately 70% of bats are insectivores and are commonly observed foraging over rivers and streams, presumably feeding on emergent aquatic insects. In this study, we collaborated with recreational river runners and other citizen scientists in Grand Canyon, Arizona, USA to record bat activity and sample riparian insects for one hour at dusk from April through October in 2017-2020. Citizen scientists collected 1,428 paired samples on 611 sampling nights at 410 sampling sites throughout a 470 km segment of river. Light traps collected a total of 71 insect taxa and acoustic monitors detected 19 bat species. We hypothesized that bat activity would be positively related to insect catch rates. Additionally, we predicted that bat activity in the riparian zone would be unrelated to terrestrial insect abundance. We fit Bayesian regression models to test these hypotheses as well as other competing hypotheses regarding the potential effects of quantify the relation between and environmental variables including time-of-year, time-of-day, distance downstream from Glen Canyon Dam, channel width, riparian vegetation density, air temperature, and lunar phase. We found that bat activity was positively related to the abundance of aquatic flies (Diptera), which outcompeted other prey categories in our models. We also found that activity of small Myotis (Myotis californicus and M. yumanensis) was higher later in the evening and that canyon bats (Parastrellus hesperus), conversely, were more active earlier in the evening. Activity of canyon bats also varied seasonally, with peak activity in August. Our results highlight the importance of aquatic flies as prey for bats along a large, regulated river corridor and demonstrate the power of citizen science as a tool for ecosystem monitoring.
Meretsky, V.J., L.A. Maguire , F.W. Davis , D.M. Stoms, J.M. Scott , D. Figg, D.D. Goble, B. Griffith, S.E. Henke, J. Vaughn, and S.L. Yaffee. 2012. A State-Based National Network for Effective Wildlife Conservation. BioScience 62(11):970-976. DOI: 10.1525/bio.2012.62.11.6 \| Abstract \| Publisher Website	November 2012	State wildlife conservation programs provide a strong foundation for biodiversity conservation in the US, building on state wildlife action plans. However, states may miss species that are at most risk at range-wide scales, and threats such as novel diseases and climate change increasingly act at regional and national levels. Regional collaborations among states and their partners have had impressive successes, and several federal programs now incorporate state priorities. However, regional collaborations are uneven across the country and no national counterpart exists to support efforts at that scale. A national conservation support program could fill this gap, working across the conservation community to identify large-scale conservation needs and support efforts to meet them. Such a program, by providing important information-sharing and capacity-building services to advance collaborative conservation among the states and their partners across the nation, would increase both effectiveness and efficiency of conservation in the US.
Melvin, A.M., M.C. Mack, J.F. Johnstone, A.D. McGuire, H. Genet, and E.A.G. Schuur. 2015. Differences ecosystem carbon distribution linked to forest tree species composition in mid-successional boreal forest. Ecosystems 18:1472-1488, doi:10.1007/s10021-015-9912-7.	December 2015
Melvin, A.M., G. Celis, J.F. Johnstone, A.D. McGuire, H. Genet, E.A.G. Schuur, T.S. Rupp, and M.C. Mack. 2018. Fuel-reduction alters plant composition, carbon and nitrogen pools, and permafrost thaw in Alaskan boreal forest. Ecological Applications 28:149-161, doi:10.1002/eap.1636.	January 2018
Mellon, C.D., M.S. Wipfli, and J.L. Li. 2008. Forest fire effects on headwater stream subsidies in eastern Washington, USA: Movements of invertebrates to riparian and downstream habitats. Freshwater Biology 53: 2331-2343.	October 2008
Medhurst, R.B., M.S. Wipfli, K. Polivka, C. Binckley, P. Hessburg, and B. Salter. 2010. Headwater streams and forest management: Does ecoregional context influence logging effects on benthic communities? Hydrobiologia 641:71-83.	January 2010
McNeil, P. A., D. E. Russell, B. Griffith, A. Gunn, and G. P. Kofinas. 2005. Where the wild things are: Seasonal variation in caribou movements in relation to climate change. Proceedings 10th North American Caribou Workshop. Rangifer Special Issue 19:51-63.	May 2006
McGuire, A.D., T.S. Rupp, T. Kurkowski, and S. Stackpoole. 2016. Introduction. Chapter 1 (pages 5-16) in Z. Zhu and A.D. McGuire, eds., Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
McGuire, A.D., T.S. Rupp, A. Breen, E.S. Euskirchen, S. Marchenko, V. Romanovsky, A. Bennett, W.R. Bolton, T. Carman, H. Genet, T. Kurkowski, M. Lara, D. Nicolsky, R. Rutter, & K. Timm. (2016). Final Report: Integrated Ecosystem Model (IEM) for Alaska and Northwest Canada Project. Fairbanks, AK; Scenarios Network for Alaska and Arctic Planning. 71 pages. doi: http://doi.org/10.21429/C9RP43.	December 2016
McGuire, A.D., T.R. Christensen, D. Hayes, A. Heroult, E. Euskirchen, J.S. Kimball, C. Koven, P. Lefleur, P.A. Miller, W. Oechel, P. Peylin, M. Williams, and Y. Yi. 2012. An assessment of the carbon balance of Arctic tundra: Comparisons among observations, process models, and atmospheric inversions. Biogeosciences 9:3185-3204, doi:10.5194/bg-9-3185-2012.	August 2012
McGuire, A.D., R.W. Ruess, A. Lloyd, J. Yarie, J.S. Clein, and G. Juday. 2010. Vulnerability of white spruce tree growth in interior Alaska in response to climate variability: Dendrochronological, demographic, and experimental perspectives. Canadian Journal of Forest Research 40:1197-1209. doi:10.1139/X09-206.	June 2010
McGuire, A.D., R.W. Macdonald, E.A.G. Schuur, J.W. Harden, P. Kuhry, D.J. Hayes, T.R. Christensen, and M. Heimann. 2010. The carbon budget of the northern cryosphere region. Current Opinion in Environmental Sustainability 2:231-236. doi:10.1016/j.cosust.2010.05.003 \| Publisher Website	October 2010
McGuire, A.D., L.G. Anderson, T.R. Christensen, S. Dallimore, L. Guo, D.J. Hayes, M. Heimann, T.D. Lorenson, R.W. Macdonald, and N. Roulet. 2009. Sensitivity of the carbon cycle in the Arctic to climate change. Ecological Monographs 79(4):523-555.	October 2009
McGuire, A.D., L.D. Hinzman, J. Walsh, J. Hobbie, and M. Sturm. Introduction to "Trajectory of the Arctic as an Integrated System". Ecological Applications. 23:1743-1744.	December 2013
McGuire, A.D., J. Walsh, J. Kimball, J. Clein, S. Euskirchen, S. Drobot, U. Herzfeld, J. Maslanik, R. Lammers, M. Rawlins, C. Vorosmarty, T. Rupp, W. Wu, and M. Calef. 2008. The Western Arctic Linkage Experiment (WALE): Overview and synthesis. Earth Interactions 12, Paper 7, 13 pages. doi:10.1175/2008EI239.1.	December 2008
McGuire, A.D., H. Genet, Y. He, S. Stackpoole, D.V. D’Amore, T.S. Rupp, B.K. Wylie, X. Zhou, and Z. Zhu. 2016. Alaska Carbon Balance. Chapter 9 (pages 189-196) in Z. Zhu and A.D. McGuire, eds., Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
McGuire, A.D., F.S. Chapin III, and R.W. Ruess, Special Editors. 2010. The Dynamics of Change in Alaska’s Boreal Forests: Resilience and Vulnerability in Response to Climate Warming. Foreword. Canadian Journal of Forest Research 40:1195-1196.	July 2010
McGuire, A.D., D.M. Lawrence, C. Koven J.S. Clein, E. Burke, G. Chen, E. Jafarov, A.H. MacDougall, S. Marchenko, D. Nicolsky, S. Peng, A. Rinke, P. Ciais, I. Gouttevin, D.J. Hayes, D. Ji, G. Krinner, J.C. Moore, V.E. Romanovsky, C. Schädel, K. Schaefer, E.A.G. Schuur, and Q. Zhuang. 2018. The dependence of the evolution of carbon dynamics in the northern permafrost region on the trajectory of climate change. Proceedings of the National Academy of Sciences, 115:3882-3887, doi:10.1073/pnas.1719903115.	March 2018
McGuire, A.D., D.J. Hayes, D.W. Kicklighter, M. Manizza, Q. Zhuang, M. Chen, M.J. Follows, K.R. Gurney, J.W. McClelland, J.M. Melillo, B.J. Peterson, and R. Prinn. 2010. An analysis of the carbon balance of the Arctic Basin from 1997 to 2006. Tellus 62B:455-474. doi:10.1111/j.1600-0889.2010.00497.x	October 2010
McGuire, A.D., C. Koven, D.M. Lawrence, J.S. Clein, J. Xia, C. Beer, E. Burke, G. Chen, X. Chen, C. Delire, E. Jafarov, A.H. MacDougall, S. Marchenko, D. Nicolsky, S. Peng, A. Rinke, K. Saito, W. Zhang, R. Alkama, T.J. Bohn, P. Ciais, B. Decharme, A. Ekici, I. Gouttevin, T. Hajima, D.J. Hayes, D. Ji, G. Krinner, D.P. Lettenmaier, P.A. Miller, J.C. Moore, V. Romanovsky, C. Schadel, K. Schaefer, E.A.G. Schuur, B. Smith, T. Sueyoshi, and Q. Zhuang. 2016. Variability in the sensitivity among model simulations of permafrost and carbon dynamics in the permafrost region between 1960 and 2009. Global Biogeochemical Cycles, 30:1015-1037, doi:10.1002/2016GB005405.	August 2016
McGuire, A.D., B.P. Kelly, and L. Sheffield Guy. 2017. Resolving a methane mystery in the Arctic. Eos 98, https://doi.org/10.1029/2017EO076733.	July 2017
McGuire, A.D., B.P. Kelly, L. Sheffield Guy, H.V. Wiggins, L. Bruhwiler, J. Frederick, H. Huntington, R. Jackson, R. Macdonald, C. Miller, D. Olefeldt, E.A.G. Schuur, and M.R. Turetsky. 2017. Final Report: International Workshop to Reconcile Methane Budgets in the Northern Permafrost Region. Arctic Research Consortium of the United States (ARCUS), Fairbanks, Alaska. 14 pages. Available through the International Arctic Research Center (IARC) Data Archive at http://climate.iarc.uaf.edu/geonetwork/srv/en/main.home?uuid=e436b77a-b0db-44c1-bd18-260c5b076b43.	May 2017
McGuire, A.D., B.K. Wylie, D.V. D’Amore, X. Zhou, T.S. Rupp, H. Genet, Y. He, S. Stackpoole, and Z. Zhu. 2016. Executive Summary-Baseline and Projected Future Carbon Storage and Greenhouse-Gas Fluxes in Ecosystems of Alaska. Pages 1-3 in Z. Zhu and A.D. McGuire, eds., Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
McGuire, A.D. 2013. Ecosystem Element Cycling. In: Encyclopedia of Environmetrics 2nd Edition (eds. El-Shaarawi A.H., Piegorsch W.W.). John Wiley & Sons Ltd, Chichester, UK, pp. 779-783. doi 10.1002/9780470057339.vae011.pub2.	December 2012
McGuire, A. D., and M. A. Apps. 2005. Foreword: Climate-Disturbance Interactions in Boreal Forest Ecosystems. Special Issue of Mitigation and Adaptation Strategies for Global Change. DOI:10/1007/s11027-005-9021-6.	February 2006
McGuire, A. D., and F. S. Chapin, III. 2006. Climate feedbacks in the Alaskan boreal forest. Pages 309-322 in F. S. Chapin, III, M. W. Oswood, K. Van Cleve, L. A. Viereck, and D. L. Verbyla, eds. Alaska's Changing Boreal Forest. Oxford University Press, New York.	June 2006
McGuire, A. D., S. Sitch, J. S. Clein, R. Dargaville, G. Esser, J. Foley, M. Heimann, F. Joos, J. Kaplan, D. W. Kicklighter, R. A. Meier, J. M. Melillo, B. Moore III, I. C. Prentice, N. Ramankutty, T. Reichenau, A. Schloss, H. Tian, L. J. Williams, and U. Wittenberg. 2001. Carbon balance of the terrestrial biosphere in the twentieth century: Analyses of CO2, climate and land use effects with four process-based ecosystem models. Global Biogeochemical Cycles 15:183-206.	March 2001
McGuire, A. D., M. Sturm, and F. S. Chapin III. 2003. Arctic Transitions in the Land-Atmosphere System (ATLAS): Background, objectives, results, and future directions. Journal of Geophysical Research - Atmospheres 108(D2), 8166, doi:10. 1029/2002JD002367.	September 2003
McGuire, A. D., M. Apps, F. S. Chapin III, R. Dargaville, M. D. Flannigan, E. S. Kasischke, D. Kicklighter, J. Kimball, W. Kurz, D. J. McRae, K. McDonald, J. Melillo, R. Myneni, B. J. Stocks, D. L. Verbyla, and Q. Zhuang. 2004. Land cover disturbances and feedback to the climate system in Canada and Alaska. Chapter 9 (pp. 139-161) in G. Gutman, A. C. Janetos, C. O. Justice, E. F. Moran, J. F. Mustard, R. R. Rindfuss, D. Skole, B. L. Turner II, and M. A. Cochrane, eds. Land Change Science: Observing, Monitoring, and Understanding Trajectories of Change on the Earth's Surface. Kluwer Academic Press, Dordrecht, The Netherlands.	November 2004
McGuire, A. D., J. S. Clein, J. M. Melillo, D. W. Kicklighter, R. A. Meier, C. J. Vorosmarty, and M. C. Serreze. 2000. Modelling carbon responses of tundra ecosystems to historical and projected climate: The sensitivity of pan-Arctic carbon storage to temporal and spatial variation in climate. Global Change Biology 6:S141-S159.	December 2000
McGuire, A. D., J. M. Melillo, J. T. Randerson, W. J. Parton, M. Heimann, R. A. Meier, J. S. Clein, D. W. Kicklighter, and W. Sauf. 2000. Modeling the effects of snowpack on heterotrophic respiration across northern temperate and high latitude regions: Comparison with measurements of atmospheric carbon dioxide in high latitudes. Biogeochemistry 48:91-114.	January 2000
McGuire, A. D., F. S. Chapin III, J. E. Walsh, and C. Wirth. 2006. Integrated regional changes in arctic climate feedbacks: Implications for the global climate system. Annual Review of Environment and Resources 31:61-91.	October 2006
McGuire, A. D., F. S. Chapin III, C. Wirth, M. Apps, J. Bhatti, T. Callaghan, T. R. Christensen, J. S. Clein, M. Fukuda, T. Maximov, A. Onuchin, A. Shvidenko, and E. Vaganov. 2007. Responses of high latitude ecosystems to global change: Potential consequences for the climate system. Pages 297-310 in J. G. Canadell, D. E. Pataki, and L. F. Pitelka, eds. Terrestrial Ecosystems in a Changing World. The IGBP Series, Springer-Verlag, Berlin Heidelburg.	January 2007
McGuire, A. D., C. Wirth, M. Apps, J. Beringer, J. Clein, H. Epstein, D. W. Kicklighter, J. Bhatti, F. S. Chapin III, B. deGroot, D. Efremov, W. Eugster, M. Fukuda, T. Gower, L. Hinzman, B. Huntley, G. J. Jia, E. Kasischke, J. Melillo, V. Romanovsky, A. Shvidenko, E. Vaganov, and D. Walker. 2002. Environmental variation, vegetation distribution, carbon dynamics, and water/energy exchange in high latitudes. Journal of Vegetation Science 13:301-314.	September 2002
McGuire, A. D. 2002. Ecosystem element cycling. Pages 614-618 in A. H. El-Shaarawi and W. W. Piegorsch, eds. Encyclopedia of Environmetrics, Volume 2. John Wiley and Sons, Chichester.	July 2002
McGarvey, D.J., Falke, J.A., Li, H.W., and J.L. Li. Fish assemblages. 2017. Pages 321-354 in F. R. Hauer and G. A. Lamberti, editors. Methods in stream ecology. 3rd edition. Academic Press. IPDS: IP-070364; BAO Date: August 30, 2015	January 2017
McFarland J, M Wipfli, and M Whitman. 2016. Trophic pathways supporting Arctic Grayling in a small stream on the Arctic Coastal Plain, Alaska. Ecology of Freshwater Fish.	February 2017
McConnell, N.A., M.R. Turetsky, A.D.McGuire, E.S. Kane, M.P. Waldrop, and J.W. Harden. 2013. Controls on ecosystem and root respiration across a permafrost and wetland gradient in interior Alaska. Environmental Research Letters, 8, 11 pages, doi:10.1088/1748-9326/8/4/045029.	December 2013
Matter, A.N., Falke, J.A., López, J.A., and J.W. Savereide. 2018. A rapid- assessment method to estimate the distribution of juvenile Chinook salmon in tributary habitats using eDNA and occupancy estimation. North American Journal of Fisheries Management 38: 223-236. DOI: 10.1002/nafm.10014.	January 2018
Martin, A.E., M.S. Wipfli, and R. Spangler. 2010. Aquatic community responses to salmon analog and wood bundle additions in restored floodplain habitats in an Alaskan stream. Transactions of the American Fisheries Society 139:1828-1845.	November 2010
Marcarelli A.M., Baxter C.V., Wipfli M.S. Nutrient additions to mitigate for loss of Pacific salmon: consequences for stream biofilm and nutrient dynamics. Ecosphere.	May 2014
Maier, J. A. K., J. M. Ver Hoef, A. D. McGuire, R. T. Bowyer, L. Saperstein, and H. A. Maier. 2005. Distribution and density of moose in relation to landscape characteristics: Effects of scale. Canadian Journal of Forest Research 35:2233-2243.	October 2005
Magness, D.R., J.M. Morton, F. Huettmann, F.S. Chapin III, and A.D. McGuire. 2011. A climate-change adaptation framework to reduce continental-scale vulnerability across conservation reserves. Ecosphere 2, Article 112, 23 pages, doi:10.1890/ES11-00200.1	October 2011
Lynch, A. J., and 10 coauthors. 2016. Climate change effects on North American inland fish populations, assemblages, and aquatic communities. Fisheries 346-361. DOI: 10.1080/03632415.2016.1186016	July 2016
Lynch, A. J., B. J. E. Myers, J. P. Wong, C. Chu, R. W. Tingley III, J. A. Falke, T. J. Kwak, C. P. Paukert, and T. J. Krabbenhoft. 2022. Reducing uncertainty in climate change responses for inland fisheries: a decision-path approach. Conservation Science in Practice, e12724. https://conbio.onlinelibrary.wiley.com/doi/pdf/10.1111/csp2.12724	June 2022
Luo, Y., A. Ahlstrom, S.D. Allison, N.H. Batjes, V. Brovkin, N. Carvalhais, A. Chappell, P. Ciais, E.A. Davidson, A. Finzi, K. Georgiou, B. Guenet, O. Hararuk, J.W. Harden, Y. He, F. Hopkins, L. Jiang, C. Koven, R.B. Jackson, C.D. Jones, M.J. Lara, J. Liang, A.D. McGuire, W. Parton, C. Peng, J.T. Randerson, A. Salazar, C.A. Sierra, M.J. Smith, H. Tian, K.E.O. Todd-Brown, M. Torn, K.J. van Groenigen, Y.P. Wang, T.O. West, Y. Wei, W.R. Wieder, J. Xia, X. Xu, X. Xu, and T. Zhou. 2016. Toward more realistic projections of soil carbon dynamics by Earth system models. Global Biogeochemical Cycles 30:40-56, doi:10.1002/2015GB005239.	January 2016
Lovvorn, J.R., Rocha, A.R., Jewett, S.C., Dasher, D., Oppel, S., Powell, A.N., 2015. Limits to benthic feeding by eiders in a vital Arctic migration corridor due to localized prey and changing sea ice, Progress in Oceanography 136:162-174. \| Download	July 2015
Liu, S., B. Bond-Lamberty, J.A. Hicke, R. Vargas, S. Zhao, J. Chen, S.L. Edburg, Y. Hu, J. Liu, A.D. McGuire, J. Xiao, R. Keane, W. Yuan, J. Tang, Y. Luo, C. Potter, and J. Oeding. 2011. Simulating the impacts of disturbances on forest carbon cycling in North America: Processes, data, models, and challenges. Journal of Geophysical Research – Biogeosciences 116, G00K08, doi:10.1029/2010JG001585.	November 2011
Liang, J., T.W. Crowther, N. Picard, S. Wiser, M. Zhou, G. Alberti, E.-D. Schulze, A.D. McGuire, F. Bozzato, H. Pretzsch, S. de-Miguel, A. Paquette, B. Herault, M. Scherer-Lorenzen, C.B. Barrett, H.B. Glick, G.M. Hengeveld, G.-J. Nabuurs, S. Pfautsch, H. Viana, A.C. Bibrans, C. Ammer, P. Schall, D. Verbyla, N. Tchbakova, M. Fischer, J.V. Watson, H.Y.H. Chen, X. Lei, M.-J. Schelhaas, H. Lu, D. Gianelle, E.I. Parfenova, C. Salas, E. Lee, B. Lee, H.S. Kim, H. Bruelheide, D.A. Coomes, D. Piotto, T. Sunderland, B. Schmid, S. Gourlet-Fleury, B. Sonke, R. Tavani, J. Zhu, S. Brandl, J. Vayreda, F. Kitahara, E.B. Searle, V.J. Neldner, M.R. Ngugi, C. Baraloto, L. Frizzera, R. Balazy, J. Oleksyn, T. Zawila-Niedzwiecki, O. Bouriaud, F. Bussotti, L. Finer, B. Jaroszewicz, T. Jucker, F. Valladares, A.M. Jagodzinski, P.L. Peri, C. Gonmadje, W. Marthy, T. O’Brien, E.H. Martin, A. Marshall, F. Rovero, R. Bitariho, P.A. Niklaus, P. Alvarez-Loayza, N. Chamuya, R. Valencia, F. Mortier, V. Wortel, N.L. Engone-Obiang, L.V. Ferreira, D.E. Odeke, R.M. Vasquez, and P.B. Reich. 2016. Positive biodiversity-productivity relationship predominant in global forests. Science 354:6309, 12 pages, doi:10.1126/science.aaf8957.	October 2016
Liang, J., M. Zhou, P.C. Tobin, A.D. McGuire, and P.B. Reich. 2015. Biodiversity influences plant productivity through niche efficiency. Proceedings of the National Acadamy of Sciences 112:5738-5743. doi:10.1073/pnas.1409853112.	May 2015
Leppi, JC, JA Falke, DJ Rinella, MS Wipfli, AC Seitz, MS Whitman. Landscape Geomorphology and Local-Riverine Features Influence Broad Whitefish (Coregonus nasus) Spawning Habitat Suitability in Arctic Alaska. For submission to Ecosystems. \| Abstract	April 2022	Landscape-level geomorphic processes influence the spatial and temporal arrangement of fish habitats in freshwater ecosystems and fish move across riverscapes selecting a suite of habitats to maximize fitness. Here, we explore the influence of geomorphology on stream channel attributes and assess Broad Whitefish (<i>Coregonus nasus</i>) spawning habitat potential in the Colville River, in Arctic Alaska. Using high-resolution digital surface models (5 m<sup>2</sup>), we quantified the stream network extent and summarized channel habitat attributes continuously across the drainage network. Next, we developed an intrinsic potential (IP) model for Broad Whitefish by using geomorphic channel parameters previously understood to be associated with spawning habitats (channel width, median substrate size, and channel braiding) to estimate the potential of streams across the Colville River watershed to provide spawning habitat. Our model results show the majority of habitat with high IP (≥ 0.6) was located within the braided sections of the main channel, which encompass > 1,548 km, but only 2 % of the total channel network. The IP model was tested by tracking radio-tagged Broad Whitefish using aerial surveys. Prespawn fish moved into the watershed starting mid-July and mostly used habitat with moderate to very high IP in the middle and lower watershed. Several individuals were relocated in smaller anastomosing channels that contained very low IP (≤ 0.2), suggesting that other factors, such as hyporheic flow, may also influence spawning habitat selection. Our study demonstrates that IP modeling offers a useful method to quantify spawning habitat potential in data-poor riverscapes, providing useful information for managers to assess potential anthropogenic impacts, and develop conservation plans to protect essential Broad Whitefish habitat.
Leppi, J, M Lunde, M Wipfli, D Rinella. 2017. In search of Arctic Bonefish. Report in Fisheries magazine.	June 2017
LeSage, C. M., R. W. Merritt, and M. S. Wipfli. In press. Headwater riparian invertebrate communities associated with red alder and conifer wood and leaf litter in southeastern Alaska. Northwest Science.	August 2005
Latty. C.J., T.E. Hollmén, M.R. Petersen, A.N. Powell, and R.D. Andrews. 2010. Abdominally implanted transmitters with percutaneous antennas affect the dive performance of common eiders. Condor 122(2):314-322.	June 2010
Laske, SM, AE Rosenberger, WJ Kane, MS Wipfli, CE Zimmerman. 2017. Top-down control of invertebrates by Ninespine Stickleback in Arctic ponds. Freshwater Biology DOI: 10.1086/690675.	January 2017
Laske, S. M., A.E. Rosenberger, M.S. Wipfli, and C.E. Zimmerman. 2019. Surface water connectivity controls fish food web structure and complexity across local-and meta-food webs in Arctic Coastal Plain lakes. Food Webs https://doi.org/10.1016/j.fooweb.2019.e00123. \| Abstract \| Publisher Website	December 2019	The need for theories that address food web assembly and complexity over multiple spatial scales are critical to understanding their stability and persistence. In a meta-food web – an integrated network of local food webs – spatial heterogeneity in physical processes may have profound effects on food web function and energy flow. In the Arctic, surface water connectivity plays a vital role in determining fish assemblage composition, and potentially, food web structure. We examined lentic food web complexity associated with heterogeneity in surface water connectivity among Arctic lakes at the local scale, by contrasting lakes over a stream-lake connectivity gradient, and at the regional scale, by contrasting two locations with different surface water conditions (i.e., wet and dry) on the Arctic Coastal Plain of Alaska. Among lakes and across locations, increased hydrologic connectivity between streams and lakes increased the number of fish species and increased the complexity of the food web. The interaction of the region's hydrologic connectivity, local stream-lake connections, and the trophic niches of relevant fish species produced integrated, complex meta-food webs. Fully understanding mechanisms that support meta-food web stability are crucial when assessing future changes to Arctic stream-lake networks and the function and persistence of aquatic food webs.
Laske, S. M., A. E. Rosenberger, M. S. Wipfli, and C. E. Zimmerman. 2018. Generalist feeding strategies in Arctic freshwater fish: a mechanism for dealing with harsh environments. Ecology of Freshwater Fish 27: 767-784. DOI: 10.1111/eff.12391 (IP-088949)	July 2018
Laske, S, T Haynes, A Rosenberger, J Koch, M Wipfli, M Whitman, C Zimmerman. 2016. Surface water connectivity structures Arctic lake fish assemblages: Influence of local and regional drivers. Freshwater Biology 61:1090-1104.	April 2016
Lara, M.J., I. Nitze, G. Grosse, and A.D. McGuire. 2018. Tundra landform and productivity trend maps for the Arctic Coastal Plain of northern Alaska. Scientific Data 5: Paper 180058, 10 pages, doi:10.1038/sdata.2018.58.	April 2018
Lara, M.J., I. Nitze, G. Grosse, P. Martin, and A.D. McGuire. 2018. Reduced arctic tundra productivity linked with landform and climate change interactions. Scientific Reports, 8, paper 2345, 10 pages, doi:10.1038/s41598-018-20692-8.	February 2018
Lara, M.J., H. Genet, A.D. McGuire, E.S. Euskirchen, Y. Zhang, D.R.N. Brown, M.T. Jorgenson, V. Romanovsky, A. Breen, and W.R. Bolton. 2016. Thermokarst rates intensify due to climate change and forest fragmentation in an Alaskan boreal forest lowland. Global Change Biology 22:816-829, doi:10.1111/gcb.13124.	February 2016
Lara, M.J., A.D. McGuire, E.S. Euskirchen, C.E. Tweedie, K.M. Hinkel, A.N. Skurikhin, V.E. Romanovsky, G. Grosse, W.R. Bolton, and H. Genet. 2015. Polygonal tundra geomorphological change in response to warming alters future CO2 and CH4 flux on the Barrow Peninsula. Global Change Biology 21:1634-1651. doi.10.1111/gcb.12757.	March 2015
Lang, D. W., G. H. Reeves, J. Hall, and M. S. Wipfli. 2006. The influence of fall-spawning salmon on growth rate and production of juvenile coho salmon (Oncorhynchus kisutch) on the Copper River Delta, Alaska. Canadian Journal of Fisheries and Aquatic Sciences 63:917-930.	March 2006
Kruse, J. A., R. G. White, H. E. Epstein, B. Archie, M. D. Berman, S. R. Braund, F. S. Chapin III, J. Charlie Sr., C. J. Daniel, J. Eamer, N. Flanders, B. Griffith, S. Haley, L. Huskey, S. James, B. Joseph, D. Klein, G. P. Kofinas, S. Martin, S. M. Murphy, W. Nebesky, C. Nicolson, K. Peter, D. E. Russell, J. Tetlichi, A. Tussing, M. D. Walker, and O. R. Young. 2004. Assessing the Sustainability of Arctic Communities: An Interdisciplinary Collaboration of Researchers and Local Knowledge Holders. Ecosystems 7(8):815-828	December 2004
Krankina, O.N., D. Pflugmacher, D. Hayes, A.D. McGuire, M. Hansen, T. Hame, V. Elsakov, and P. Nelson. 2011. Vegetation cover in the Eurasian Arctic: Distribution, monitoring, and role in carbon cycling. Chapter 5 in Eurasian Arctic Land Cover and Land Use in a Changing Climate (edited by G. Gutman and A. Reissell). Springer, New York. Pp. 79-108.	January 2011
Krabbenhoft, T., Myers, B., Wong, J., Chu, C., Tingley, R., Falke, J., Kwak, T., Paukert, C., and A. Lynch. 2020. Fish and Climate Change (FiCli) Database: Informing management actions for responding to climate change effects in fishes. Scientific Data. 7:124. https://doi.org/10.1038/s41597-020-0465-z.	April 2020
Koven, C.D., E.A.G. Schuur, C. Schadel, T.J. Bohn, E.J. Burke, G. Chen, X. Chen, P. Ciais, G. Grosse, J.W. Harden, D.J. Hayes, G. Hugelius, E.E. Jafarov, G. Krinner, P. Kuhry, D.M. Lawrence, A.H. MacDougall, S.S. Marchenko, A.D. McGuire, S.M. Natali, D.J. Nicolsky, D. Olefeldt, S. Peng, V.E. Romanovsky, K.M. Schaefer, J. Strauss, C.C. Treat, and M. Turetsky. 2015. A simplified, data-constrained approach to estimate the pernmafrost carbon-climate feedback. Philosophical Transactions of the Royal Society A 373:20140423, 23 pages, doi:10.1098/rsta.2014.0423.	October 2015
Kohler, A., Kusnierz, P., Copeland, T., Venditti, D., Gable, J., Kinzer, R., Lewis, B., Lytle, D., Barnett, B., and Wipfli, M. 2013. Salmon-mediated nutrient flux in selected streams of the Columbia River Basin, USA. Can. J. Fish. Aquat. Sci. 70: 502-512.	April 2013
Koch, J.C., Gurney, K.E., Wipfli, M.S., and Schmutz, J.A. 2019, Physical, chemical, and invertebrate data from Chipp North pond manipulations, North Slope, Alaska, 2013: U.S. Geological Survey data release, https://doi.org/10.5066/P9K5EV4N.	November 2019
Koch, J, Gurney, K, Wipfli M. 2014. Morphology-dependent water budgets and nutrient fluxes in arctic thaw ponds. Permafrost and Periglacial Processes. DOI: 10.1002/ppp.1804.	May 2014
Knoche, M.J., A.N. Powell, L.T. Quakenbush, M.J. Wooller, and L.M. Phillips. 2007. Further evidence for site fidelity to wing molt locations by King Eiders: Integrating stable isotope analyses and satellite telemetry. Waterbirds 30(1):52-57.	April 2007
Kliskey, A., L Alessa, S. Wandersee, P Williams, J Trammel, J Powell, J Grunblatt, M Wipfli. 2016. Integration in sustainability science: frameworks, components, and products in a place-based, integrative study. Sustainability Science.	August 2016
Klapstein, S.J., M.R. Turetsky, A.D. McGuire, J.W. Harden, C.I. Czimczik, X. Xu, J.P. Chanton, and J.M. Waddington. 2014. Controls on methane released through ebullition from peatlands affected by permafrost degradation. Journal of Geophysical Research – Biogeosciences 119:418-431, doi:10.1002/2013/G002441.	May 2014
Kittel, T. G. F., N. A. Rosenbloom, J. A. Royle, C. Daly, W. P. Gibson, H. H. Fisher, P. Thornton, D. N. Yates, S. Aulenbach, C. Kaufman, R. McKeown, D. Bachelet, D. S. Schimel, and VEMAP2 Participants (including A. David McGuire). 2004. The VEMAP Phase 2 Bioclimatic Database I: A gridded historical (20th Century) climate dataset for modeling ecosystem dynamics across the conterminous United States. Climate Research 27:151-170.	October 2004
King, A.W., R.J. Andres, K.J. Davis, M. Hafer, D.J. Hayes, D.N. Huntzinger, B. de Jong, W.A. Kurz, A.D. McGuire, R. Vargas, Y. Wei, T.O. West, and C.W. Woodall. 2015. North America’s net terrestrial CO2 exchange with the atmosphere 1990-2009. Biogeosciences 12:399-414. doi:10.5194/bg-12-399-2015.	January 2015
Kimball, J. S., M. Zhao, A. D. McGuire, F. A. Heinsch, J. Clein, M. Calef, W. M. Jolly, S. Kang, S. E. Euskirchen, K. C. McDonald, and S. W. Running. 2007. Recent climate-driven increases in vegetation productivity for the Western Arctic: Evidence of an acceleration of the northern terrestrial carbon cycle. Earth Interactions 11, Paper 4. 30 pp.	February 2007
Kicklighter, D.W., D.J. Hayes, J.W. McClelland, B.J. Peterson, A.D. McGuire, and J.M. Melillo. In press. Insights and issues with simulating terrestrial DOC loading of arctic river networks. Ecological Applications 23:1817-1836.	December 2013
Kicklighter, D. W., M. Bruno, S. Donges, G. Esser, M. Heimann, J. Helfrich, F. Ift, F. Joos, J. Kaduk, G. H. Kohlmaier, A. D. McGuire, J. M. Melillo, R. Meyer, B. Moore III, A. Nadler, I. C. Prentice, W. Sauf, S. Sitch, U. Wittnenberg, and G. Wurth. 1999. A first-order analysis of the potential role of CO2 fertilization to affect the global carbon budget: A comparison of four terrestrial biosphere models. Tellus 51B:343-366.	July 1999
Kennedy, T.A., A.N. Metcalfe, B.R. Deemer, M.A. Ford, C.M. Szydlo, C.B. Yackulic, and J.D. Muehlbauer. 2022. Little bugs, big data, and Colorado River adaptive management—Preliminary findings from the ongoing bug flow experiment at Glen Canyon Dam. Boatman's Quarterly Review. 35:26-31. \| Publisher Website	October 2022
Kelly, R., H. Genet, A.D. McGuire, and F.S. Hu. 2016. Paleodata-informed modeling of large carbon losses from recent burning of boreal forests. Nature Climate Change 6:79-82, doi:10.1038/nclimate2832.	January 2016
Kasischke, E.S., D. Verbyla, T.S. Rupp, A.D. McGuire, K.A. Murphy, J.L. Allen, E.E. Hoy, R. Jandt, P. Duffy, M. Calef, and M.R. Turetsky. 2010. Alaska’s changing fire regime – Implications for the vulnerability of its boreal forests. Canadian Journal of Forest Research 40:1313-1324. doi:10.1139/X10-098. \| Publisher Website	June 2010
Karl, T.R., J.M. Melillo, T.C. Peterson, D.M. Anderson, D.F. Boesch, V. Burkett, L.M. Carter, S.J. Cohen, N.B. Grimm, J.L. Hatfield, K. Hayhoe, A. Janetos, J.A. Kaye, J. Lawrimore, J. McCarthy, A.D. McGuire, E. Miles, E. Mills, J.T. Overpeck, J. Patz, R. Pulwarthy, B. Santer, M.J. Savonis, H.G. Schwartz, E. Shea, J. Stone, B.H. Udall, J. Walsh, M.F. Wehner, T.J. Wilbanks, and D. Wuebbles. 2009. Global Climate Change Impacts in the United States: A State of Knowledge Report from the U.S. Global Change Research Program. Cambridge University Press. New York. 188 pages.	June 2009
Kaplan, J. O., N. H. Bigelow, I. C. Prentice, S. P. Harrison, P. J. Bartlein, T. R. Christensen, W. Cramer, N. V. Matveyeva, A. D. McGuire, D. F. Murray, V. Y. Razzhivin, B. Smith, D. A. Walker, P. M. Anderson, A. A. Andreev, L. B. Brubaker, M. E. Edwards, and A. V. Lozhkin. 2003. Climate change and Arctic ecosystems: 2. Modeling, paleodata-model comparisons, and future projections. Journal of Geophysical Research 108(D19), 8171, doi:10. 1029/2002JD002559, 2003.	October 2003
Kane, E.S., M.R. Turetsky, J.W. Harden, A.D. McGuire, and J.M. Waddington. 2010. Seasonal ice and hydrologic controls on dissolved organic carbon and nitrogen concentrations in a boreal-rich fen. Journal of Geophysical Research – Biogeosciences 115, G04012, 15 pages, doi:10.1029/2010JG001366.	October 2010
Kane, E.S., M.R. Chivers, M.R. Turetsky, C.C. Treat, D.G. Petersen, M. Waldrop, J.W. Harden, and A.D. McGuire. 2013. Response of anaerobic carbon cycling to water table manipulation in an Alaskan rich fen. Soil Biology and Biogeochemistry 58:50-60.	January 2013
Julius, S.H., J.M. West, J.S. Baron, B. Griffith, L.A. Joyce, B.D. Keller, M.A. Palmer, C.H. Peterson, and J.M. Scott. 2008. Annex B: Confidence Estimates for SAP 4. 4 Adaptation Approaches. Pages B-1 to B-36 in: Preliminary Review of Adaptation Options for Climate Sensitive Ecosystems and Resources. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [S.H. Julius and J.M. West (eds. ), J.S. Baron, B. Griffith, L.A. Joyce, P. Kereiva, B.D. Keller, M.A. Palmer, C.H. Peterson, and J.M. Scott (authors)]. U.S. Environmental Protection Agency, Washington, DC.	September 2008
Julius, S.H., J.M. West, J.S. Baron, B. Griffith, L.A. Joyce, B.D. Keller, M.A. Palmer, C.H. Peterson, and J.M. Scott. 2008. Annex A: Case Studies. Pages A-1 to A-170 in: Preliminary review of adaptation options for climate-sensitive ecosystems and resources. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research S.H. Julius and J.M. West (eds.), J.S. Baron, B. Griffith, L.A. Joyce, P. Kareiv, B.D. Keller, M.A. Palmer, C. H. Peterson, and J. M. Scott (authors)]. U.S. Environmental Protection Agency, Washington, DC.	September 2008
Joy, PJ, CS Stricker, W Jones, MS Wipfli, AC Seitz, M Tyers. 2019. Bridging the gap between salmon spawner abundance and marine nutrient use by juvenile salmon: seasonal cycles and landscape effects at the watershed scale. Ecosystems. 23: 338-358 doi.org/10.1007/s10021-019-00406-5	June 2019
Joy, PJ, CA Stricker, R Ivanof, SY Wang, MS Wipfli, AC Seitz, J Huang, MB Tyers. 2020. Juvenile coho and Chinook salmon growth, size, and condition linked to watershed-scale salmon spawner abundance. Transactions of the American Fisheries Society. doi:10.1002/tafs.10233	April 2020
Johnstone, J., D. Russell, and B. Griffith. 2002. Variations in plant forage quality in the range of the Porcupine caribou herd. Rangifer 22(1):65-74.	June 2002
Johnson,K.D., J.W. Harden, A.D. McGuire, M. Clark, F.M. Yuan, and A. Finley. 2013. Permafrost and organic layer interactions over a climate gradient in a discontinuous permafrost zone. Environmental Research Letters 8, 12 pages, doi:10.1088/1748-9326/8/3/035028.	August 2013
Johnson, K.D., J. Harden, A.D. McGuire, N.B. Bliss, J.G. Bockheim, M. Clark, T. Nettleton-Hollingsworth, M.T. Jorgenson, E.S. Kane, M. Mack, J. O’Donnell, C.L. Ping, E.A.G. Schuur, M.R. Turetsky, and D.W. Valentine. 2011. Soil carbon distribution in Alaska in relation to soil-forming factors. Geoderma 167-168:71-84.	November 2011
Jalbert, C., Falke J.A., Lopez, J.A., Dunker, K.J., Sepulveda, A.J., and P.A.H. Westley. 2021. Vulnerability of Pacific salmon to invasion of northern pike (Esox lucius) in Southcentral Alaska. PLOS ONE 16(7): e0254097. https://doi.org/10.1371/journal.pone.0254097. \| Abstract \| Publisher Website	July 2021	The relentless role of invasive species in the extinction of native biota requires predictions of ecosystem vulnerability to inform proactive management strategies. The worldwide invasion and range expansion of predatory northern pike (<i>Esox lucius</i>) has been linked to the decline of native fishes and tools are needed to predict the vulnerability of habitats to invasion over broad geographic scales. To address this need, we coupled an intrinsic potential habitat modelling approach with a Bayesian network to evaluate the vulnerability of five culturally and economically vital species of Pacific salmon (<i>Oncorhynchus</i> spp.) to invasion by northern pike. This study was conducted along 22,875 stream km in the Southcentral region of Alaska, USA. Pink salmon (<i>O</i>. <i>gorbuscha</i>) were the most vulnerable species, with 15.2% (2,458 km) of their calculated extent identified as “highly” vulnerable, followed closely by chum salmon (<i>O</i>. <i>keta</i>, 14.8%; 2,557 km) and coho salmon (<i>O</i>. <i>kisutch</i>, 14.7%; 2,536 km). Moreover, all five Pacific salmon species were highly vulnerable in 1,001 stream km of shared habitat. This simple to implement, adaptable, and cost-effective framework will allow prioritizing habitats for early detection and monitoring of invading northern pike.
Jain, A., X. Yang, H. Kheshgi, A.D. McGuire, W. Post, and D. Kicklighter. 2009. Nitrogen attenuation of terrestrial carbon cycle response to global environmental factors. Global Biogeochemical Cycles 23, GB4028. 13 pp. doi:10.1029/2009GB003519.	December 2009
Jafarov, E.E., V.E. Romanovsky, H. Genet, A.D. McGuire, and S.S. Marchenko. 2013. The effects of fire on the thermal stability of permafrost in lowland and upland black spruce forests of interior Alaska in a changing climate. Environmental Research Letters 8, 11 pages, doi:10.1088/1748-9326/8/3/035030.	September 2013
Iversen, C.M., V.L. Sloan, P.F. Sullivan, E.S. Euskirchen, A.D. McGuire, R.J. Norby, A.P. Walker, J.M. Warren, and S.D. Wullschleger. 2014. The unseen iceberg: Plant roots in arctic tundra. Tansley Review. New Phytologist 205:34-58. doi:10.1111/nph.13003.	December 2014
Isaak, D.J, Peterson, E.E., Ver Hoef, J.M., Wenger, S.J., Falke, J.A., Torgersen, C.E., Sowder, C., Steel, E.A., Fortin, M., Jordan, C.E., Ruesch, A.S., Som, N., and P. Monestiez. 2014. Applications of spatial statistical models to stream data. WIREs Water 1:277-294. doi: 10.1002/wat2.1023	March 2014
Inkley, D. B., M. G. Anderson, A. R. Blaustein, V. R. Burkett, B. Felzer, B. Griffith, J. Price, and T. L. Root. 2004. Global climate change and wildlife in North America. The Wildlife Society Technical Review 04-2. 26pp.	December 2004
IPCC, 2019: Chapter 3: Arctic Regions. In: IPCC Special Report on the Ocean and Cryosphere in a Changing Climate [H.-O. Pörtner, D.C. Roberts, V. Masson-Delmotte, P. Zhai, M. Tignor, E. Poloczanska, K. Mintenbeck, M. Nicolai, A. Okem, J. Petzold, B. Rama, N. Weyer (eds.)]. 173 pages.	September 2019
Huntzinger, D.N., W.M. Post, Y. Wei, A. Michalak, T.O. West, A. Jacobson, I.T. Baker, J.M. Chen, K.J. Davis, D.J. Hayes, F.M. Hoffman, A.K. Jain, S. Liu, A.D. McGuire, R.P. Neilson, B. Poulter, B.M. Raczka, H. Tian, P. Thornton, E. Tomelleri, N. Viovy, J. Xiao, N. Zeng, M. Zhao, and R. Cook. 2012. North American Carbon Project (NACP) Regional Interim Synthesis: Terrestrial biospheric model intercomparison. Ecological Modelling 232:144-157.	September 2012
Huntsman, B.M., and J.A. Falke. 2019. Main stem and off-channel habitat use by juvenile Chinook salmon in a sub-Arctic riverscape. Freshwater Biology. 64: 433-446. DOI: 10.1111/fwb.13232.	February 2019
Huntsman, B.M., Falke, J.A., Savereide, J.W., and K.E. Bennett. 2017. The role of density-dependent and –independent processes in spawning habitat selection by salmon in an Arctic boreal stream network. PLoS ONE 12(5): e0177467. https://doi.org/10.1371/ journal.pone.0177467	May 2017
Hultman, J., M.P. Waldrop, R. Mackelprang, M.M. David, J. McFarland, S.J. Blazewicz, J. Harden, M.R. Turetsky, A.D. McGuire, M.B. Shah, N.C. VerBerkmoes, L.H. Lee, K. Mavrommatis, and J.K. Jansson. 2015. Multi-omics of permafrost, active layer and thermokarst bog soil microbiomes. Nature 521:208-212. doi:10.1038/nature14238.	May 2015
Hinzman, L.D., C. Deal, A.D. McGuire, I Polyakov, J. Walsh, and S.H. Mernild. 2013 Trajectory of the Arctic as an integrated system. Ecological Applications 23:1837-1868.	December 2013
Hinzman, L. D, N. D. Bettez, W. R. Bolton, F. S. Chapin, M. B. Dyurgerov, C. L. Fastie, B. Griffith, R. D. Hollister, A. Hope, H. P. Huntington, A. M. Jensen, G. J. Jia, T. Jorgenson, D. L. Kane, D. R. Klein, G. Kofinas, A. H. Lynch, A. H. Lloyd, A. D. McGuire, F. E. Nelson, W. C. Oechel, T. E. Osterkamp, C. H. Racine, V. E. Romanovsky, R. S. Stone, D. A. Stow, M. Sturm, C. E. Tweedie, G. L. Vourlitis, M. D. Walker, D. A. Walker, P. J. Webber, J. M. Welker, K. S. Winker, and K. Yoshikawa. 2005. Evidence and implications of recent climate change in northern Alaska and other Arctic regions. Climatic Change 72:251-298.	December 2005
Hicks, B. J., M. S. Wipfli, D. W. Lang, and M. E. Lang. 2005. Marine-derived nitrogen and carbon in freshwater-riparian food webs of the Copper River Delta, southcentral Alaska. Oecologia. 144:558-569.	June 2005
Heun, C.M., H.L. Schley, and S.M. Crimmins. 2022. River otter feeding habits in Wisconsin, USA: evidence of microbead contamination. American Midland Naturalist 187:279-286. https://doi.org/10.1674/0003-0031-187.2.279	April 2022
Hernandez, O., R. W. Merritt, and M. S. Wipfli. 2005. Benthic invertebrate community structure in headwater streams is affected by forest succession after clearcut logging in southeastern Alaska. Hydrobiologia. 533:45-59.	March 2005
Heintz, R.A., M.S. Wipfli, and J.P. Hudson. 2010. Identification of marine-derived lipids in juvenile coho salmon and aquatic insects through fatty acid analysis. Transactions of the American Fisheries Society 139:840-854.	March 2010
Heintz, R. A., B. D. Nelson, J. P. Hudson., M. Larsen, L. Holland, and M. S. Wipfli. 2004. Marine subsidies in freshwater: Effects of salmon carcasses on the lipid class and fatty acid composition of juvenile coho salmon. Transactions of the American Fisheries Society. 133:559-567.	May 2004
Heim, KC, TE McMahon, L Calle, MS Wipfli, JA Falke. 2019. Phenology of water as a life-history filter for fishes in temporary aquatic habitats. Fish and Fisheries. 20:802-816. doi.org/10.1111/faf.12386	June 2019
Heim, KC, MS Wipfli, M Whitman, C Arp, J Adams, J Falke. Environmental Correlates of Arctic Grayling Seasonal Movement on the Arctic Coastal Plain, Alaska. Environmental Biology of Fishes.	September 2015
Heim, KC, CD Arp, MS Whitman, MS Wipfli. 2018. The complimentary role of lentic and lotic habitats for Arctic Grayling in a complex stream-lake network in Arctic Alaska. Ecology of Freshwater Fish. 28:209-221. doi.org/10.1111/eff.12444	December 2018
Heim, K, M Wipfli, M Whitman, A Seitz. 2014. Body size and condition influence migration timing of Arctic grayling. Ecology of Freshwater Fish. DOI: 10.1111/eff.12199	November 2014
He., Y., J. Yang,. Q. Zhuang, A.D. McGuire, Q. Zhu, Y. Liu, and R.O Teskey. 2014. Uncertainty in the fate of soil organic carbon: A comparison of three conceptually different decomposition models in a larch plantation. Journal of Geophysical Research Biogeosciences 119:1892-1905. doi:10.1002/2014JG002701.	October 2014
He, Y., Q. Zhuang, J.W. Harden, A.D. McGuire, Z. Fan, Y. Liu, and K. Wickland. 2014. The implications of microbial and substrate limitation for the fates of carbon in different organic soil horizon types of boreal forest ecosystems: A mechanistically based model analysis. Biogeosciences 11:4477-4491, doi:10.5194/bg-11-4477-2014.	August 2014
He, Y., Q. Zhuang, A.D. McGuire, Y. Liu, and M. Chen. 2013. Alternative ways of using field-based estimates to calibrate ecosystem models and their implications for ecosystem carbon cycle studies. Journal of Geophysical Research – Biogeosciences 118, 11 pages, doi:10.1002/jgrg.20080.	September 2013
He, Y., J. Yang, Q. Zhuang, J.W. Harden, A.D. McGuire, Y. Liu, G. Wang, L. Gu. 2016. Incorporating microbial dormancy dynamics into soil decomposition models to improve quantification of soil carbon dynamics of northern temperate forests. Journal of Geophysical Research - Biogeosciences 120:2596-2611, doi:10.1002/2015JG003130.	January 2016
He, Y., H. Genet, A.D. McGuire, Q. Zhuang, B.K. Wylie, and Y. Zhang. 2016. Terrestrial carbon modeling: Baseline and projections in lowland ecosystems of Alaska. Chapter 7 (pages 133-158) in Z. Zhu and A.D. McGuire, eds., Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
Haynes, T, T Jones, M Robards, J Lawler, A Whiting, M Tibbles, M Wipfli, P Neitlich. Understanding the Ecology of Arctic Coastal Lagoons through Fisheries Research and Monitoring. Alaska Park Science report, NPS.	December 2016
Hayes, D.J., D.W. Kicklighter, A.D. McGuire, M. Chen, Q. Zhuang, F. Yuan, J.M. Melillo, and S.D. Wullschleger. 2014. The impacts of recent permafrost thaw on land-atmosphere greenhouse gas exchange. Environmental Research Letters 9, 12 pages, doi:10.1088/1748-9326/9/4/045005.	April 2014
Hayes, D.J., D.P. Turner, G. Stinson, A.D. McGuire Y. Wei, T.O. West, L.S. Heath, B. deJong, B. McConkey, R. Birdsey, W.A. Kurz, A. Jacobson, D.N. Huntzinger, Y. Pan, W.M. Post, and R.B. Cook. 2012. Reconciling estimates of the contemporary North American carbon balance among terrestrial biosphere models, atmospheric inversions and a new approach for estimating net ecosystem exchange from inventory-based data. Global Change Biology 18:1282-1299. doi: 10.1111/j.1365-2486.2011.02627.x.	May 2012
Hayes, D.J., A.D. McGuire, D.W. Kicklighter, T.J. Burnside, and J.M. Melillo. 2011. The effects of land cover and land use change on the contemporary carbon balance of the arctic and boreal ecosystems of northern Eurasia. Chapter 6 in Eurasian Arctic Land Cover and Land Use in a Changing Climate (edited by G. Gutman and A. Reissell). Springer, New York. Pp. 109-136.	January 2011
Hayes, D.J., A.D. McGuire, D.W. Kicklighter, K.R. Gurney, T.J. Burnside, and J.M. Melillo. 2011. Is the northern high latitude land-based CO2 sink weakening? Global Biogeochemical Cycles 25, GB3018, 14 pp. doi:10.1029/2010GB003813	August 2011
Harden, J.W., C.D. Koven, C.-Lu Ping, G. Hugelius, A.D. McGuire, P. Camill, T. Jorgenson, P. Kuhry, G.J. Michaelson, J.A. O’Donnell, E.A.G. Schuur, C. Tarnocai, K. Johnson, and G. Grosse. 2012. Field information links permafrost carbon to physical vulnerabilities of thawing. Geophysical Research Letters 39, L15704, 6 pages, doi:10.1029/2012GL051958.	September 2012
Halm, D.R., and Griffith, Brad, 2014, Water-quality data from lakes in the Yukon Flats, Alaska, 2010–2011: U.S. Geological Survey Open-File Report 2014–1181, 6 p., http://dx.doi.org/10.3133/ofr20141181.	November 2014
Gustine D, Barboza P, Adams L, Griffith B, Cameron R, Whitten K (2017) Advancing the match-mismatch framework for large herbivores in the Arctic: Evaluating the evidence for a trophic mismatch in caribou. PLoS ONE 12(2): e0171807. doi:10.1371/journal.pone.0171807 \| Abstract	February 2017	Climate-induced shifts in plant phenology may adversely affect animals that cannot or do not shift the timing of their reproductive cycle. The realized effect of potential trophic ªmismatches º between a consumer and its food varies with the degree to which species rely on dietary income and stored capital. Large Arctic herbivores rely heavily on maternal capital to reproduce and give birth near the onset of the growing season but are they vulnerable to trophic mismatch? We evaluated the long-term changes in the temperatures and characteristics of the growing seasons (1970±2013), and compared growing conditions and dynamics of forage quality for caribou at peak parturition, peak lactation, and peak forage biomass, and plant senescence between two distinct time periods over 36 years (1977 and 2011±13). Despite advanced thaw dates (7−12 days earlier), increased growing season lengths (15 −21 days longer), and consistent parturition dates, we found no decline in forage quality and therefore no evidence within this dataset for a trophic mismatch at peak parturition or peak lactation from 1977 to 2011±13. In Arctic ungulates that use stored capital for reproduction, reproductive demands are largely met by body stores deposited in the previous summer and autumn, which reduces potential adverse effects of any mismatch between food availability and timing of parturition. Climate-induced effects on forages growing in the summer and autumn ranges, however, do correspond with the demands of female caribou and their offspring to gain mass for the next reproductive cycle and winter. Therefore, we suggest the window of time to examine the match-mismatch framework in Arctic ungulates is not at parturition but in late summer-autumn, where the multiplier effects of small changes in forage quality are amplified by forage abundance, peak forage intake, and resultant mass gains in mother-offspring pairs.
Grunblatt, J, BE Meyer, MS Wipfli. 2019. Riparian Vegetation Influences Aquatic Winged Adult Insect Contributions to Juvenile Salmon Diet in Three Alaska Steams. Journal of Freshwater Ecology. xx:xx-xx	January 2020
Grosse, G., S. Goetz, A.D. McGuire, V.E. Romanovsky, and E.A.G. Schuur. 2016. Changing permafrost in a warming world and feedbacks to the Earth System. Submitted to Environmental Research Letters 11, paper 040201, 10 pages, doi:10.1088/1748-9326/11/4/040201.	March 2016
Grosse, G., J. Harden, M. Turetsky, A.D. McGuire, P. Camill, C. Tarnocoi, S. Frolking, E.A.G. Schuur, T. Jorgenson, S. Marchenko, V. Romanovsky, K.P. Wickland, N. French, M. Waldrop, L. Bourgeau-Chavez, and R. G. Striegl. 2011. Vulnerability of high-latitude soil organic carbon in North America to disturbance. Journal of Geophysical Research 116, G00K06, doi:10.1029/2010JG001507. 23 pp.	July 2011
Griffith, B., and A.D. McGuire. 2008. National Wildlife Refuges Case Study: Alaska and the Central Flyway. Annex A: Case Studies. Pages A-36 to A-46 in: Preliminary Review of Adaptation Options for Climate-Sensitive Ecosystems and Resources. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research [S.H. Julius and J.M West (eds. ), J.S. Baron, B. Griffith, L.A. Joyce, P. Kareiva, B.D. Keller, M.A. Palmer, C.H. Peterson, and J.M. Scott (authors)]. U.S. Environmental Protection Agency, Washington, DC.	September 2008
Griffith, B., J.M Scott, R. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzalez, J. Lawler, A.D. McGuire, and A. Pidgorna. 2009. Climate change adaptation options for the US National Wildlife Refuge System. Environmental Management. DOI 10.1007/s00267-009-9323-7 \| Publisher Website	June 2009
Griffith, B., D. C. Douglas, N. E. Walsh, D. D. Young, T. R. McCabe, D. E. Russell, R. G. White, R. D. Cameron, and K. R. Whitten. 2002. The Porcupine caribou herd. Pages 8-37 in D. C. Douglas, P. E. Reynolds, and E. B. Rhode, editors. Arctic Refuge coastal plain terrestrial wildlife research summaries. U. S. Geological Survey, Biological Resources Division, Biological Science Report USGS/BRD BSR-2002-0001. http://alaska. usgs. gov/BSR-2002/usgs-brd-bsr-2002-001. html	March 2002
Griffith, B., D. C. Douglas, D. E. Russell, R. G. White, T. R. McCabe, and K. R. Whitten. 2001. Effects of recent climate warming on caribou habitat and survival. Pages 17-19 in R. E. Green, M. Harley, M. Spalding, and C. Zockler, eds. Impacts of Climate Change on Wildlife. Royal Society for the Protection of Birds, Sandy, United Kingdom.	January 2001
Griffith, B., C. Cuyler, R. G. White, L. G. Adams, D. E. Russell, D. C. Douglas, A. Gunn, and R. D. Cameron. 2010. No evidence of trophic mismatch for caribou in Greenland. Science. http://www.sciencemag.org/cgi/eletters/325/5946/1355 \| Publisher Website	January 2010
Gray, S.T., A. Bennett, W.R. Bolton, A.L. Breen, T. Carman, E. Euskirchen, H. Genet, E. Jafarov, J. Jenkins, T. Kurkowski, M. Lindgren, P. Martin, S. McAfee, A.D. McGuire, S. Marchenko, R. Muskett, S. Panda, J. Reynolds, A. Robertson, V. Romanovsky, T.S. Rupp, K. Timm, and Y. Zhang. 20134. Using integrated ecosystem modeling to improve toour understanding of climate change impacts in the Alaska region. Alaska National Parks Journal. In press. 12(2):12-17.	December 2013
Gomi, T., A. C. Johnson, R. L. Deal, P. E. Hennon, E. H. Orlikowska, and M. S. Wipfli. 2006. Factors affecting distribution of wood, detritus, and sediment in headwater streams draining managed young-growth red alder-conifer forests in Southeast Alaska. Canadian Journal of Forest Research 36:725-737.	June 2006
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. C. 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, Alaska. Marine Ecology Progress Series 241:287-304.	July 2002
Genet, H., Y. He, Z. Lyu, A.D. McGuire, Q. Zhuang, J. Clein, D. D’Amore, A. Bennett, A. Breen, F. Biles, E.S. Euskirchen, K. Johnson, T. Kurkowski, S. (Kushch) Schroder, N. Pastick, T.S. Rupp, B. Wylie, Y. Zhang, X. Zhou, and Z. Zhu. 2018. The role of driving factors in historical and projected carbon dynamics of upland ecosystems in Alaska. Ecological Applications 28:5-27, doi:10.1002/eap.1641.	January 2018
Genet, H., Y. He, A.D. McGuire, Q. Zhuang, Y. Zhang, F. Biles, D.V. D’Amore, X. Zhou, and K.D. Johnson. 2016. Terrestrial carbon modeling: Baseline and projections in upland ecosystems. Chapter 6 (pages 105-132) in Z. Zhu and A.D. McGuire, eds., Baseline and projected future carbon storage and greenhouse-gas fluxes in ecosystems of Alaska. U.S. Geological Survey Professional Paper 1826, 196 p., http://dx.doi.org/10.3133/pp1826.	June 2016
Genet, H., A.D.McGuire, K. Barrett, A. Breen, E.S. Euskirchen, J.F. Johnstone, E.S. Kasischke, A.M. Melvin, A. Bennett, M.C. Mack, T.S. Rupp, E.A.G. Schuur, M.R. Turetsky, and F. Yuan. 2013. Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storagedynamics of black spruce forests across the landscape in interior Alaska. Environmental Research Letters. In press. 8, 13 pages, doi:10.1088/1748-9326/8/4/045016.	November 2013
Gates, H. R., S. Yezerinac, A. N. Powell, P. S. Tomkovich, O. P. Valchuk and R. B. Lanctot. 2013. Differentiation of subspecies and sexes of Beringian Dunlin using morphometric measures. Journal of Field Ornithology 84:389-402.	December 2013
Gates, H. R., R. Lanctot, and A. N. Powell. 2013. High renesting rates in arctic-breeding Dunlin (Calidris alpina): a clutch-removal experiment. Auk 130:372:380 \| Download	May 2013
Fraley, K.M., Falke, J.A., McPhee, M.V., and A. Prakash. 2018. Rainbow trout movement behavior and habitat occupancy are influenced by sex and Pacific salmon presence in an Alaska river system. Canadian Journal of Fisheries and Aquatic Sciences 75: 525-537. dx.doi.org/10.1139/cjfas-2016-0459.	January 2018
Fraley, K. M., Falke, J. A., Yanusz, R., and S. Ivey. Seasonal movements and habitat use of potamodromous rainbow trout across a complex Alaska riverscape. Transactions of the American Fisheries Society 145:1077-1092.	October 2016
Flitcroft, R.L., Falke, J.A., Reeves, G.H., Hessburg, P.F., McNyset, K.M., and L.E. Benda. 2016. Wildfire may increase habitat quality for spring Chinook salmon in the Wenatchee River subbasin, WA, USA. Forest Ecology and Management 359:126-140.	January 2016
Fan, Z., A.D. McGuire, M.R. Turetsky, J.W. Harden, J.M. Waddington, and E.S. Kane. 2013. The response of soil organic carbon of a rich fen peatland in interior Alaska to projected climate change. Global Change Biology 19:604-620. doi:10.1111/gcb.12041.	February 2013
Falke, J.A., Huntsman, B.M., and E.R. Schoen. 2019. Climatic variation drives growth potential of juvenile Chinook Salmon along a subarctic boreal riverscape. Pages 57-82 in R.M. Hughes and D. Infante, editors. Advances in understanding landscape influences on freshwater habitats and biological assemblages. American Fisheries Society, Symposium 90, Bethesda, Maryland.	September 2019
Falke, J.A., Flitcroft, R.L., Dunham, J.B., McNyset, K.M., Hessburg, P.F., and G.H. Reeves. Climate change and vulnerability of bull trout (Salvelinus confluentus) in a fire-prone landscape. Canadian Journal of Fisheries and Aquatic Sciences 72:304-318.	February 2015
Falke, J.A., Dunham, J.D., and D. Hockman-Wert. 2016. A simple prioritization tool to diagnose impairment of stream temperature for coldwater fishes in the Great Basin. North American Journal of Fisheries Management 36:147-160.	January 2016
Falke, J.A., Bailey, L.T., Fraley, K.M., Lunde, M.J., and A.D. Gryska. 2019. Energetic status and bioelectrical impedance modeling of Arctic grayling Thymallus arcticus in interior Alaska rivers. Environmental Biology of Fishes. https://doi.org/10.1007/s10641-019-00910-6	September 2019
Falke, J. A., Dunham, J. B., Jordan, C. E., McNyset, K. M., and G. H. Reeves. 2013. Spatial ecological processes and local factors predict the distribution and abundance of spawning by steelhead (Oncorhynchus mykiss) across a complex riverscape. PLoS ONE 8(11):e79232. doi:10.1371/journal.pone.0079232	November 2013
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
Euskirchen, E.S., T.B. Carman, and A.D. McGuire. 2014. Changes in the structure and function of northern Alaskan ecosystems when considering variable leaf-out times across groupings of species in a dynamic vegetation model. Global Change Biology. In press. 20:963-978, doi: 10.1111/gcb.12392.	February 2014
Euskirchen, E.S., A.P. Bennett, A.L Breen, H. Genet, M.A. Lindgren, T.A. Kurkowski, A.D. McGuire, and T.S. Rupp. 2016. Consequences of changes in vegetation and snow cover for climate feedbacks in Alaska and northwest Canada. Environmental Research Letters 11, paper 105003, 19 pages, doi:10.1088/1748-9326/11/10/105003.	October 2016
Euskirchen, E.S., A.D. McGuire, T.S. Rupp, F.S. Chapin III, and J.E. Walsh. 2009. Projected changes in atmospheric heating due to changes in fire disturbance and the snow season in the western Arctic, 2003–2100. Journal of Geophysical Research – Biogeosciences 114, G04022, 15 pages. doi:10.1029/2009JG001095.	December 2009
Euskirchen, E.S., A.D. McGuire, F.S. Chapin, and T.S. Rupp. 2010. The changing effects of Alaska boreal forests on the climate system. Canadian Journal of Forest Research 40:1336-1346. doi:10.1139/X09-209. \| Publisher Website	June 2010
Euskirchen, E.S., A.D. McGuire, F.S. Chapin, III, S. Yi, and C.C. Thompson. 2009. Changes in vegetation in northern Alaska under scenarios of climate change, 2003-2100: implications for climate feedback. Ecological Applications 19(4):1022-1043.	July 2009
Euskirchen, E. S., A. D. McGuire, and F. S. Chapin III. 2007. Energy feedbacks of northern high-latitude ecosystems to the climate system due to reduced snow cover during 20th century warming. Global Change Biology 13:2425-2438, doi:10. 1111/j. 1365-2486. 2007. 01450. x	October 2007
Euskirchen, E. S., A. D. McGuire, D. W. Kicklighter, Q. Zhuang, J. S. Clein, . R. J. Dargaville, D. G. Dye, J. S. Kimball, K. C. McDonald, J. M. Melillo, V. E. Romanovsky, and N. V. Smith. 2006. Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems. Global Change Biology 12:731-750, doi: 10. 1111/j. 1365-2486. 2006. 01113. x.	March 2006
Dunlop, K, M Wipfli, R Muladal, G Wierzbinski. 2020. *Terrestrial and semi-aquatic scavengers on Pacific pink salmon (Oncorhynchus gorbuscha) carcasses in a riparian ecosystem in northern Norway.* Biological Invasions. doi.org/10.1007/s10530-020-02419-x	December 2020
Dunlop, K, AP Eloranta, E Schoen, MS Wipfli, JL Jensen, R Muladal, GN Christensen. 2020. Evidence of energy and nutrient transfer from the invasive pink salmon (Oncorhynchus gorbuscha) spawners to juvenile Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in northern Norway. Ecology of Freshwater Fish. doi.org/10.1111/eff.12582	November 2020
Duffy, P. A., J. Epting, J. M. Graham, T. S. Rupp, and A. D. McGuire. 2007. Analysis of Alaskan burn severity patterns using remotely sensed data. International Journal of Wildland Fire 16:277-284.	July 2007
Deemer, B.R., C.B. Yackulic, R.O. Hall, M.J. Dodrill, T.A. Kennedy, J.D. Muehlbauer, D.J. Topping, N. Voichick, and M.D. Yard. 2022. Experimental reductions in sub-daily flow fluctuations increased gross primary productivity for 425 river kilometers downstream. Proceedings of the National Academy of Sciences Nexus pgac094. https://doi.org/10.1093/pnasnexus/pgac094 \| Abstract \| Publisher Website	June 2022	Aquatic primary production is the foundation of many river food webs. Dams change the physical template of rivers, often driving food webs toward greater reliance on aquatic primary production. Nonetheless, the effects of regulated flow regimes on primary production are poorly understood. Load following is a common dam flow management strategy that involves sub-daily changes in water releases proportional to fluctuations in electrical power demand. This flow regime causes an artificial tide, wetting and drying channel margins and altering river depth and water clarity, all processes that are likely to affect primary production. In collaboration with dam operators, we designed an experimental flow regime whose goal was to mitigate negative effects of load following on ecosystem processes. The experimental flow contrasted steady-low flows on weekends with load following flows on weekdays. Here, we quantify the effect of this experimental flow on springtime gross primary production (GPP) 90-to-425 km downstream of Glen Canyon Dam on the Colorado River, AZ, USA. GPP during steady-low flows was 41% higher than during load following flows, mostly owing to non-linear reductions in sediment-driven turbidity. The experimental flow increased weekly GPP even after controlling for variation in weekly mean discharge, demonstrating a negative effect of load following on GPP. We estimate that this environmental flow increased springtime carbon fixation by 0.27 g C m<sup>–2</sup> d<sup>–1</sup>, which is ecologically meaningful considering median C fixation in 356 U.S. rivers of 0.44 g C m<sup>–2</sup> d<sup>–1</sup> and the fact that native fish populations in this river are food-limited.
Dargaville, R., A. D. McGuire, and P. Rayner. 2002. Estimates of large-scale fluxes in high latitudes from terrestrial biosphere models and an inversion of atmospheric CO2 measurements. Climatic Change 55:273-285.	July 2002
Dargaville, R. J., M. Heimann, A. D. McGuire, I. C. Prentice, D. W. Kicklighter, F. Joos, J. S. Clein, G. Esser, J. Foley, J. Kaplan, R. A. Meier, J. M. Melillo, B. Moore III, N. Ramankutty, T. Reichenau, A. Schloss, S. Sitch, H. Tian, L. J. Williams, and U. Wittenberg. 2002. Evaluation of terrestrial carbon cycle models with atmospheric CO2 measurements: Results from transient simulations considering increasing CO2, climate and land-use effects. Global Biogeochemical Cycles 16, 1092, doi:10. 1029/2001GB001426.	December 2002
Csiszar, I., C. O. Justice, A. D. McGuire, M. A. Cochrane, D. P. Roy, F. Brown, S. G. Conard, P. G. H. Frost, L. Giglio, C. Elvidge, M. D. Flannigan, E. Kasischke, D. J. McRae, T. S. Rupp, B. J. Stocks, and D. L. Verbyla. 2004. Land use and fires. Chapter 19 (pp. 329-350) in G. Gutman, A. C. Janetos, C. O. Justice, E. F. Moran, J. F. Mustard, R. R. Rindfuss, D. Skole, B. L. Turner II, and M. A. Cochrane. 2004. Land Change Science: Observing, Monitoring, and Understanding Trajectories of Change on the Earth's Surface. Kluwer Academic Press, Dordrecht, Netherlands.	December 2004
Cruz, J., S. Windels, W.E. Thogmartin, S.M. Crimmins, and B. Zuckerberg. 2023. Survival of Common Loon chicks appears unaffected by Bald Eagle recovery in northern Minnesota. Avian Ecolgoy and Conservation 18(1):7. https://doi.org/10.5751/ACE-02395-180107 \| Abstract	June 2023	Recovering species are not returning to the same environments or communities from which they disappeared. Conservation<br>researchers and practitioners are thus faced with additional challenges in ensuring species resilience in these rapidly changing ecosystems.<br>Assessing the resilience of species in these novel systems can still be guided by species’ ecology, including knowledge of their population<br>size, life history traits, and behavioral adaptations, as well as the type, strength, and number of ways that they interact with other species<br>in the community. We summarized broad trends of Common Loons (Gavia immer) breeding at Voyageurs National Park from 1973 to<br>2009, and evaluated the effects of increased risk from recovering Bald Eagles (Haliaeetus leucocephalus) on chick survival from 2004<br>to 2006. Adult Common Loons appear to have increased over time. Using Bayesian survival models that accounted for imperfect<br>detection of unmarked individuals, we determined that chick survival of Common Loons was high from year to year and was unrelated<br>to predation risk from Bald Eagles because chicks in territories closer to active nests did not experience greater mortality than those<br>farther away. We suggest that Common Loon chicks were unaffected by the recovery of this top predator during the three years of<br>sampling. Previous research indicates that Bald Eagles and other predators are an important source of egg losses, but Common Loons<br>can compensate by re-nesting. Despite current uncertainties from anthropogenic threats, knowledge of a species’ ecology remains<br>instrumental in determining its resilience during recovery.
Courtney, K.R., Falke, J.A., Cox, M.C., and J. Nichols. 2020. Energetic status of Alaskan Chinook Salmon: interpopulation comparisons and predictive modeling using bioelectrical impedance analysis. North American Journal of Fisheries Management. 40:209-224. DOI: 10.1002/nafm.10398.	February 2020
Corell, R.W., S.J. Hassol, J.M. Melillo, D. Archer, E. Euskirchen, F.S. Chapin III, A.D. McGuire, T.R. Christensen, V.P. Fichelet, K. Walter, Q. Zhuang, T. Callaghan, S. Bech, and C. McMullen. 2008. Methane from the Arctic: Global warming wildcard. Pages 37-48 in P. Harrison, ed. UNEP Year Book 2008. United Nations Environment Programme, Nairobi, Kenya.	January 2008
Collins, SF, CV Baxter, AM Marcarelli, L Felicetti, S Florin, MS Wipfli, G Servheen. 2020. Reverberating effects of resource exchanges in stream-riparian food webs. Oecologia, 192:179–189. doi.org/10.1007/s00442-019-04574-y	January 2020
Collins, S. F., A.M. Marcarelli, C.V. Baxter, and M.S. Wipfli. 2015. A critical assessment of the ecological assumptions underpinning compensatory mitigation of salmon-derived nutrients. Environmental Management 3: 571-586.	July 2015
Collins, S, C Baxter, A Marcarelli, M Wipfli. Production of resident fish benefits from experimental salmon subsidies via direct and indirect pathways across stream-riparian boundaries. Submittted to Ecological Applications.	March 2016
Clein, J., A. D. McGuire, E. S. Euskirchen, and M. Calef. 2007. The effects of different climate input datasets on simulated carbon dynamics in the Western Arctic. Earth Interactions 11, Paper 12, doi:10. 1175/E1229. 1.	September 2007
Clein, J. S., B. L. Kwiatkowski, A. D. McGuire, J. E. Hobbie, E. B. Rastetter, J. M. Melillo, and D. W. Kicklighter. 2000. Modelling carbon responses of tundra ecosystems to historical and projected climate: a comparison of a plot- and a global-scale ecosystem model to identify process-based uncertainties. Global Change Biology 6(Suppl. 1):127-140.	December 2000
Clein, J. S., A. D. McGuire, X. Zhuang, D. W. Kicklighter, J. M. Melillo, S. C. Wofsy, P. G. Jarvis, and J. M. Massheder. 2002. Historical and projected carbon balances of mature black spruce ecosystems across North America: The role of carbon-nitrogen interactions. Plant and Soil 242:15-32.	July 2002
Clawson, C.M., Falke, J.A., Bailey, L.A., J.A., Rose, J., Prakash, A., and A.E. Martin. 2022. High-resolution remote sensing and multistate occupancy estimation identify drivers of spawning site selection in fall chum salmon (Oncorhynchus keta) across a sub-Arctic riverscape. Canadian Journal of Fisheries and Aquatic Sciences 79:380-394. https://doi.org/10.1139/cjfas-2021-0013.	March 2022
Churchwell, R. T., S. J. Kendall, A. L. Blanchard, K. H. Dunton, and A. N. Powell. 2015. Natural disturbance shapes benthic intertidal macroinvertebrate communities of high latitude river deltas. Estuaries and Coasts. DOI 10.1007/s12237-015-0028-2	September 2015
Churchill, A.C., M.R. Turetsky, A.D. McGuire, and T.N. Hollingsworth. 2015. Response of plant community structure and primary productivity to experimental drought and flooding in an Alaskan fen. Canadian Journal of Forest Research 45:185-193. doi:10.1139/cjfr-2014-0100.	February 2015
Chivers, M.R., M.R. Turetsky, J.M. Waddington, J.W. Harden, and A.D. McGuire. 2009. Effects of experimental water table and temperature manipulations on ecosystem CO2 fluxes in an Alaskan rich fen. Ecosystems 12:1329-1342.	October 2009
Chen, G., D.J. Hayes, and A.D. McGuire. 2017. Contributions of wildland fire to terrestrial ecosystem carbon dynamics in North America from 1990 – 2012. Global Biogeochemical Cycles 31:878-900, doi:10.1002/2016GB005548.	May 2017
Chapin, F.S., III, S.F. Trainor, P. Cochran, H. Huntington, C. Markon, M. McCammon, A.D. McGuire, and M. Serreze. 2014. Chapter 22: Alaska. Climate Change Impacts in the United States: The Third National Climate Assessment. J.M. Melillo, T.C. Richmond, and G.W. Yohe (editors), U.S. Global Change Research Program, pp. 514-536. doi:10.7930/J00Z7150.	May 2014
Chapin, F.S., III, S.F. Trainor, O. Huntington, A.L. Lovecraft, E. Zavaleta, D.C. Natcher, A.D. McGuire, J.L. Nelson, L. Ray, M. Calef, N. Fresco, H. Huntington, T.S. Rupp, L. DeWilde, and R.A. Naylor. 2008. Increasing wildfire in Alaska's boreal forest: Causes, consequences, and pathways to potential solutions of a wicked problem. BioScience 58:531-540.	July 2008
Chapin, F.S. III, J. McFarland, A.D. McGuire, E.S. Euskirchen, R.W. Ruess, and K. Kielland. 2009. The changing global carbon cycle: linking plant-soil carbon dynamics to global consequences. Journal of Ecology 97:840-850.	August 2009
Chapin, F.S. III, A.D. McGuire, R.W. Ruess, T.N. Hollingsworth, M.C. Mack, J.F. Johnstone, E. Kasischke, E.S. Euskirchen, J.B. Jones, M.T. Jorgenson, K. Kielland, G.P. Kofinas, M.R. Turetsky, J. Yarie, A.H. Lloyd, and D.L. Taylor. 2010. Resilience to climate change in Alaska’s boreal forest. Canadian Journal of Forest Research 40:1360-1370. doi:10.1139/X10-074. \| Publisher Website	July 2010
Chapin, F. S., III, G. M. Woodwell, J. T. Randerson, G. M. Lovett, E. B. Rastetter, G. M. Lovett, D. D. Baldocchi, D. A. Clark, M. E. Harmon, D. S. Schimel, R. Valentini, C. Wirth, J. D. Aber, J. J. Cole, M. L. Goulden, J. W. Harden, M. Heimann, R. W. Howarth, P. A. Matson, A. D. McGuire, J. M. Melillo, H. A. Mooney, J. C. Neff, R. A. Houghton, M. L. Pace, M. G. Ryan, S. W. Running, O. E. Sala, W. H. Schlesinger, and E. -D. Schulze. 2006. Reconciling carbon-cycle concepts, terminology, and methods. Ecosystems 9:1041-1050	November 2006
Chapin, F. S., III, A. D. McGuire, R. W. Ruess, M. W. Walker, R. D. Boone, M. E. Edwards, B. P. Finney, L. D. Hinzman, J. B. Jones, G. P. Juday, E. S. Kasischke, K. Kielland, A. H. Lloyd, M. W. Oswood, C. L. Ping, E. Rexstad, V. E. Romanovsky, J. P. Schimel, E. B. Sparrow, B. Sveinbjornsson, D. W. Valentine, K. Van Cleve, D. L. Verbyla, L. A. Viereck, R. A. Werner, T. L. Wurtz, and J. Yarie. 2006. Summary and synthesis: Past and future changes in the Alaskan boreal forest. Pages 332-338 in F. S. Chapin, III, M. W. Oswood, K. Van Cleve, L. A. Viereck, and D. L. Verbyla, eds. Alaska's Changing Boreal Forest. Oxford University Press, New York.	June 2006
Chapin, F. S., A. D. McGuire, J. Randerson, R. Pielke Sr., D. Baldochhi, S. E. Hobbie, N. Roulet, W. Eugster, E. Kasischke, E. B. Rasterrer, S. A. Zimov, and S. W. Running. 2000. Feedbacks from arctic and boreal ecosystems to climate. Global Change Biology 6:S211-S223.	December 2000
Chapin, F. S. III, T. S. Rupp, A. M Starfield, L. DeWilde, E. S. Zavaleta, N. Fresco, J. Henkelman, and A. D. McGuire. 2003. Planning for resilience: Modeling change in human-fire interactions in the Alaskan boreal forest. Frontiers in Ecology and the Environment 1(5):255-261.	September 2003
Chapin, F. S. III, M. Sturm, M. C. Serreze, J. P. McFadden, J. R. Key, A. H. Lloyd, A. D. McGuire, T. S. Rupp, A. H. Lynch, J. P. Schimel, J. Beringer, H. E. Epstein, E. Euskirchen, L. D. Hinzman, G. Jia, C. -L. Ping, K. D. Tape, C. D. C. Thompson, D. A. Walker, and J. M. Welker. 2006. Role of land-surface changes in arctic summer warming. Science 310:657-660.	February 2006
Chapin, F. S. III, M. Berman, T. V. Callaghan, A. -S. Crepin, K. Danell, H. Ducklow, B. Forbes, G. Kofinas, A. D. McGuire, M. Nuttall, R. Virginia, O. Young, and S. Zimov. 2005. Polar Systems. Pages 717-743 in H. Hassan, R. Scholes, and N. Ash, eds. Ecosystems and Human Well-Being: Current State and Trends. Island Press, Washington, DC.	January 2005
Chapin, F. S. III, J. T. Randerson, A. D. McGuire, J. A. Foley, and C. B. Field. 2008. Changing feedbacks in the climate-biosphere system. Frontiers in Ecology and the Environment 6:313-320, doi:10. 1890/080005.	June 2008
Chaloner, D. T., G. A. Lamberti, R. W. Merritt, N. L. Mitchell, P. H. Ostrom, and M. S. Wipfli. 2004. Variation in responses to spawning Pacific salmon in three southeastern Alaska streams. Freshwater Biology. 49:587-599.	March 2004
Cameron, R. D., W. T. Smith, R. G. White, and B. Griffith. 2005. Central Arctic caribou and petroleum development: Distributional, nutritional and reproductive implications. Arctic 58(1):1-9.	April 2005
Cameron, R. D., W. T. Smith, R. G. White, and B. Griffith. 2002. The Central Arctic caribou herd. Pages 38-45 in D. C. Douglas, P. E. Reynolds, and E. B. Rhode, editors. Arctic Refuge coastal plain terrestrial wildlife research summaries. U. S. Geological Survey, Biological Resources Division, Biological Science Report USGS/BRD BSR-2002-0001.	March 2002
Cameron, R. D., B. Griffith, L. S. Parrett, and R. G. White. Efficacy of calf:cow ratios for estimating calf production of arctic caribou. Rangifer, 33, Special Issue No. 21, 2013:27-34.	July 2013
Callaghan, T.V., M. Johansson, O. Anisimov, H.H. Christiansen, A. Instanes, V. Romanovsky, S. Smith, and contributing authors (including A.D. McGuire). 2011. Changing permafrost and its impacts. Chapter 5 in Snow, Water, Ice, and Permafrost in the Arctic (SWIPA). Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway, pp. 5-1 to 5-22.	September 2012
Calef, M.P., A.D. McGuire, and F.S. Chapin III. 2008. Human influences on wildfire in Alaska from 1998 through 2005: An analysis of the spatial patterns of human impacts. Earth Interactions 12, Paper 1, 17 pages, doi:10. 1175/2007EI220. 1.	January 2008
Calef, M.P., A. Varvak, and A.D. McGuire. 2017. Differences in human versus lightning fires between urban and rural areas of the boreal forest in Interior Alaska. Forests 8, paper 422, 15 pages, doi:10.3390/f8110422.	November 2017
Calef, M.P., A. Varvak, A.D. McGuire, F.S. Chapin III, and K.B. Reinhold. 2015. Recent changes in annual area burned in interior Alaska: The impact of fire management. Earth Interactions. 19: Paper 5, 17 pages. doi:10.1175/EI-D-14-0025.1.	July 2015
Calef, M. P., A. D. McGuire, H. E. Epstein, T. S. Rupp, and H. H. Shugart. 2005. Analysis of vegetation distribution in interior Alaska and sensitivity to climate change using a logistic regression approach. Journal of Biogeography 32:863-878.	July 2005
CCSP (Climate Change Science Program). 2008. Preliminary Review of Adaptation Options for Climate-Sensitive Ecosystems and Resources. A Report by the U. S. Climate Change Science Program and the Subcommittee on Global Change Research. [S. H. Julius and J. M. West (eds. ), J. S. Baron, B. Griffith, L. A. Joyce, P. Kareiva, B. D. Keller, M. A. Palmer, C. H. Peterson, and J. M. Scott (authors)]. U. S. Environmental Protection Agency, Washington, DC. 873 pp.	September 2008
Breen, A.L., A. Bennett, T. Kurkowski, M. Lindgren, J. Schroder, A.D. McGuire, and T.S. Rupp. 2016. Projecting vegetation and wildfire response to changing climate and fire management in interior Alaska. Alaska Fire Science Consortium Research Summary 2016-1, 7 pages.	October 2016
Borg, B.L., Arthur, S.A., Falke, J.A., and L.R.Prugh. Accepted. Determinants of gray wolf (Canis lupus) sightings in Denali National Park. https://doi.org/10.14430/arctic72208	March 2021
Bond-Lamberty, B., D. Epron, J. Harden, M.E. Harmon, F. Hoffman, J. Kumar, A.D. McGuire, and R. Vargas. 2016. Estimating heterotrophic respiration at large scales: Challenges, approaches, and next steps. Ecosphere 7, Article e01380,13 pages, doi:10.1002/ecs2.1380.	June 2016
Birdsey, R., N. Bates, M. Behrenfeld, K. Davis, S. Doney, R. Feely, D. Hansell, L. Heath, E. Kasischke, H. Kheshgi, B. Law, C. Lee, A.D. McGuire, P. Raymond, and C.J. Tucker. 2009. Carbon cycle observations: Gaps threaten climate mitigation policies. Eos 90(34):292-293. \| Publisher Website	August 2009
Binckley, C., M.S. Wipfli, R.B. Medhurst, K. Polivka, P. Hessburg, B. Salter, and J.Y. Kill. 2010. Ecoregion and land-use influence invertebrate and detritus transport from headwater streams. Freshwater Biology 55:1205-1218.	February 2010
Bigelow, N. H., L. B. Brubaker, M. E. Edwards, S. P. Harrison, I. C. Prentice, P. M. Anderson, A. A. Andreev, P. J. Bartlein, T. R. Christensen, W. Cramer, J. O. Kaplan, A. V. Lozhkin, N. V. Matveyeva, D. F. Murray, A. D. McGuire, V. Y. Razzhivin, J. C. Ritchie, B. Smith, D. A. Walker, K. Gajewski, V. Wolf, B. H. Holmqvist, Y. Igarashi, K. Kremenetskii, A. Paus, M. F. J. Pisaric, and V. S. Volkova. 2003. Climate change and arctic ecosystems, 1: Vegetation changes north of 55 degrees N between the last glacial maximum, mid-Holocene, and present. Journal of Geophysical Research--Atmospheres 108(D19), 8170, doi:10. 1029/2002JD002558, 2003.	October 2003
Beringer, J., F. S. Chapin, C. C. Thompson, and A. D. McGuire. 2005. Surface energy exchanges along a tundra-forest transition and feedbacks to climate. Agricultural and Forest Meteorology 131(3-4):143-161.	September 2005
Bentzen, R.L., A.N. Powell, T.D. Williams, and A.S. Kitaysky. 2009. Characterizing the nutritional strategy of incubating king eiders Somateria spectabilis in northern Alaska. Journal of Avian Biology 39:683-690. doi: 10.1111/j.1600-048X.2008.0442.x.	April 2009
Bentzen, R., A. Powell, and R. Suydam. 2009. Strategies for nest site selection by king eiders. Journal of Wildlife Management 73(6):932-938. DOI: 10.2193/2008-411.	September 2009
Bentzen, R. and A. N. Powell. 2012. Population dynamics of king eiders breeding in Alaska. Journal of Wildlife Management 76(5):1011-1020, DOI: 10.1002/jwmg.335 \| Publisher Website	February 2012
Bentzen, R. L., A. N. Powell, and R. S. Suydam. 2008. Factors influencing nesting success of king eiders on northern Alaska's coastal plain. Journal of Wildlife Management 72:1781-1789.	December 2008
Bentzen, R. L., A. N. Powell, T. D. Williams, and A. S. Kitaysky. 2008. Characterizing the nutritional strategy of incubating king eiders Somateria spectabilis in northern Alaska. Journal of Avian Biology 39:683-690.	December 2008
Bentzen, R. L., A. N. Powell, L. M. Phillips, and R. S. Suydam. 2010. Incubation behavior of king eiders on the coastal plain of northern Alaska. Polar Biology 33(8): 1075-1082, DOI: 10.1007/s00300-010-0787-y.	October 2009
Bentzen, R. L. and A. N. Powell. 2015. Dispersal, movements and site fidelity of post-fledging King Eiders Somateria spectabilis and their attendant females. Ibis 157:133-146. doi: 10.1111/ibi.12217. \| Download	November 2014
Benson, E.R., M.S. Wipfli, J. Clapcott, and N.F. Hughes. 2012. Relationships between ecosystem metabolism, benthic macroinvertebrate densities, and environmental variables in an interior Alaska river. Hydrobiologia DOI 10.1007/s10750-012-1272-0	September 2012
Bellmore, J.R., C.J. Sergeant, R.A. Bellmore, J.A. Falke, and J.B. Fellman. 2023. Modeling coho salmon population response to streamflow and water temperature extremes. Canadian Journal of Fisheries and Aquatic Sciences 80:243-260. https://doi.org/10.1139/cjfas-2022-0129. \| Abstract	February 2023	In the northern latitudes of western North America, climate change is altering patterns of streamflow and water temperature via elevated air temperature, increased frequency and intensity of rainfall, and glacier retreat. The subsequent increases in stream temperature, flooding, and drought can alter the population dynamics of culturally and economically important aquatic species such as Pacific salmon (<i>Oncorhynchus</i> spp.). Modeling approaches designed to assess the vulnerability of salmon to climate change tend to focus on average environmental conditions and typically do not account for extreme events lasting days to weeks. To explore how these short-duration disturbances impact salmon populations, we developed a life cycle model that mechanistically links coho salmon (<i>O. kisutch</i>) abundance to daily streamflow and thermal regimes. Model design was motivated by two questions: 1) how does coho salmon abundance respond to short-duration floods, droughts, and elevated water temperatures in glacier-, snow-, and rain-fed streams? 2) How does the temporal resolution of streamflow and water temperature data influence modeled abundance? In our simulations, salmon populations in rain-fed streams were the most sensitive to winter floods that increased egg mortality and drought conditions that concentrated juvenile salmon in warm, isolated pools. Salmon populations in similarly sized snow- and glacier-fed streams were relatively resilient to all but the most extreme flood and drought scenarios. These findings suggest that salmon abundance in the thousands of rain-fed streams draining to coastal Alaska and British Columbia may become more variable year-to-year depending on the future frequency and severity of winter floods and summer droughts. Aggregating streamflow and temperature time series from daily into weekly and monthly averages dampened the influence of extreme events and predicted impacts on populations. Our model can be adapted to additional climate change scenario planning exercises for any salmonid-bearing stream with sufficient measurements of habitat characteristics, streamflow, and water temperature.
Belant, J.R., B. Griffith, Y. Zhang, E.H. Follmann, and L.G. Adams. 2010. Population-level resource selection by sympatric brown and American black bears in Alaska. Polar Biology 33:31-40. DOI 10.1007/s00300-009-0682-6.	January 2010
Barrett, K., T. Loboda, A.D. McGuire, H. Genet, E. Hoy, and E. Kasischke. 2016. Static and dynamic controls on fire activity at moderate spatial and temporal scales in the Alaskan boreal forest. Ecosphere 7, Article e01572, 21 pages, doi:10.1002/ec2.1572.	November 2016
Barrett, K., E.S. Kasischke, A.D. McGuire, M.R. Turetsky, and E.S. Kane. 2010. Modeling fire severity in black spruce stands in the Alaskan boreal forest. International Journal of Remote Sensing 114:1494-1503, doi: 10.1016/j.rse.2010.02.001.	July 2010
Barrett, K., A.D. McGuire, E.E. Hoy, and E.S. Kasischke. 2011. Potential shifts in dominant forest cover in interior Alaska driven by variations in fire severity. Ecological Applications 21(7):2380-2396.	October 2011
Baron, J.S., S.H. Julius, J.M. West, L.A. Joyce, G. Blate, C.H. Peterson, M. Palmer, B.D. Keller, P. Kareiva, J.M. Scott and B. Griffith. 2008. Some guidelines for helping natural resources adapt to climate change. International Human Dimensions Programme on Global Environmental Change Update 2:46-52.	October 2008
Barber, V.A., G.P. Juday, T. Osterkamp, R. D'Arrigo, E. Berg, E. Buckley, L. Hinzman, H. Huntington, T. Jorgenson, A.D. McGuire, B. Riordan, A. Whiting, G. Wiles, and M. Wilmking. 2009. A synthesis of recent climate warming effects on terrestrial ecosystems of Alaska. Chapter 9. Pages 110-139 in F. Wagner, ed. Climate Warming in Western North America: Evidence and Environmental Effects. University of Utah Press, Salt Lake City, UT.	May 2009
Balshi, M.S., A.D. McGuire, P. Duffy, M. Flannigan, J. Walsh, and J. Melillo. 2009. Assessing the response of area burned to changing climate in western boreal North America using a Multivariate Adaptive Regression Splines (MARS) approach. Global Change Biology 15:578-600. doi:10.1111/j.1365-2486.2008.01679.x.	March 2009
Balshi, M.S., A.D. McGuire, P. Duffy, M. Flannigan, D.W. Kicklighter, and J. Melillo. 2009. Vulnerability of carbon storage in North American boreal forests to wildfires during the 21st century. Global Change Biology 15:1491-1510. doi:10.1111/j.1365-2486.2009.01877.x	June 2009
Balshi, M. S., A. D. McGuire, Q. Zhuang, D. W. Kicklighter, E. Kasischke, C. Wirth, M. Flannigan, J. Harden, J. S. Clein, T. J. Burnside, J. McAllister, W. A. Kurz, M. Apps, and A. Shvidenko. 2007. The role of historical fire disturbance in the carbon dynamics of the pan-boreal region: A process-based analysis. Journal of Geophysical Research, Vol. 112, G02029, doi: 10. 1029/2006JG000380, 2007.	June 2007
Arthur, D.E., Falke, J.A., Blain-Roth, B.J., and T.M. Sutton. Alaskan Yelloweye Rockfish (Sebastes ruberrimus) fecundity revealed through an automated egg count and digital imagery method.	May 2022
Apps, M. A., and A. D. McGuire. 2005. Climate-Disturbance Interactions in Boreal Forest Ecosystems. Peer-reviewed papers selected from the IBFRA Conference, Fairbanks, Alaska, 3-6 May 2004. Canadian Journal of Forest Research 35:2073-2293	October 2005
Amthor, J. S., J. M. Chen, J. S. Clein, S. E. Frolking, M. L. Goulden, R. F. Grant, J. S. Kimball, A. W. King, A. D. McGuire, N. T. Nikolov, C. S. Potter, S. Wang, and S. C. Wofsy. 2001. Boreal forest CO2 exchange and evapotranspiration predicted by nine ecosystem process models: Intermodel comparisons and relationships to field measurements. Journal of Geophysical Research - Atmospheres 106:33, 623-33, 648.	December 2001
Abernethy, E.F., J.D. Muehlbauer, T.A. Kennedy, J.D. Tonkin, R. Van Driesche and D.A. Lytle. 2021. Hydropeaking intensity and dam proximity limit aquatic invertebrate diversity in the Colorado River Basin. Ecosphere 12: e03559, 1-12. https://doi.org/10.1002/ecs2.3559 \| Abstract \| Publisher Website	June 2021	River biodiversity is threatened globally by hydropower dams, and there is a need to understand how dam management favors certain species while filtering out others. We examined aquatic invertebrate communities within the tailwaters 0–24 km downstream of seven large hydropower dams in the Colorado River Basin of the western United States. We quantified aquatic invertebrate dominance, richness, abundance, and biomass at multiple locations within individual tailwaters and across the basin and identified biological community responses associated with dam operations and distance from dam. We found that each tailwater was dominated by 3–7 invertebrate taxa, accounting for 95% of total abundance. Half of these dominant taxa were non-insect, non-flying species and thus were unavailable to terrestrial consumers. Consistent with previous studies, aquatic insects and sensitive taxa were negatively associated with hydropeaking intensity (magnitude of daily flow fluctuations associated with hydropower generation), which limits the composition and potentially the quality of the invertebrate food base. While total invertebrate abundance and biomass did not change with increasing distance downstream from dams, insect and sensitive taxa richness, abundance, and biomass all increased, suggesting that impacts of hydropeaking are most acute immediately downstream of dams. Our results demonstrate that tailwaters experiencing hydropeaking support high abundances of aquatic invertebrate, but the diversity of these communities is low.
Abernethy, E. F., J. D. Muehlbauer, T. A. Kennedy, K. E. Dziedzic, H. Elder, M. K. Burke, and D. A. Lytle. 2023. Population connectivity of aquatic insects in a dam‐regulated, desert river. River Research and Applications 39:364-374. https://doi.org/10.1002/rra.3972 \| Abstract \| Publisher Website	March 2023	Humans have exaggerated natural habitat fragmentation, negatively impacting species dispersal and reducing population connectivity. Habitat fragmentation can be especially detrimental in freshwater populations, whose dispersal is already constrained by the river network structure. Aquatic insects, for instance, are generally limited to two primary modes of dispersal: downstream drift in the aquatic juvenile life stages and flight during the terrestrial winged adult stage. Yet the impacts of large hydropower dams can make rivers uninhabitable for incoming (drifting) juvenile insects, with remaining refugia found only in tributaries. The ability of adult aquatic insects to traverse such river stretches in search of suitable tributary habitat likely depends on factors such as species-specific dispersal ability and distance between tributaries. To explore the intersection of natural and human-induced habitat fragmentation on aquatic insect dispersal ability, we quantified population genetics of three taxa with varying dispersal abilities, a caddisfly (Hydropsychidae, <i>Hydropsyche oslari</i>), a mayfly (Baetidae: <i>Fallceon quilleri</i>), and a water strider (Veliidae: <i>Rhagovelia distincta</i>), throughout tributaries of the Colorado River in the Grand Canyon, Arizona, USA. Using 2bRAD reduced genome sequencing and landscape genetics analyses, we revealed a strong pattern of isolation by distance among mayfly populations. This contrasts with caddisfly and water strider populations, which were largely panmictic. Analysis of thousands of informative single nucleotide polymorphisms showed that realized dispersal ability may not be accurately predicted by species traits for these widespread species. Principal components analysis revealed a strong division between caddisfly populations upstream and downstream of Havasu Creek (279 km through the 390 km study reach), suggesting that the geography of the Grand Canyon imposes a dispersal barrier for this species. Our use of genetic tools in the Grand Canyon to understand population structure has enabled us to elucidate dispersal barriers for aquatic insects. Ultimately, these data may be useful in informing effective conservation management plans for understudied organisms of conservation interest.
Abbott, B.W., J.B. Jones, E.A.G. Schuur, F.S. Chapin III, W.B. Bowden, M.S. Bret-Harte, H.E. Epstein, M.D. Flannigan, T.K. Harms, T.N. Hollingsworth, M.C. Mack, A.D. McGuire, S.M. Natali, A.V. Rocha, S.E. Tank, M.R. Turetsky, J.E. Vonk, K.P. Wickland, G.R. Aiken, H.D. Alexander, R.M.W. Amon, B.W. Benscoter, Y. Bergeron, K. Bishop, O. Blarquez, B. Bond-Lamberty, A.L. Breen, I. Buffam, Y. Cai, C. Carcaillet, S.K Carey, J.M. Chen, H.Y.H. Chen, T.R. Christensen, L.W. Cooper, J.H.C. Cornelissen, W.J. de Groot, T.H. DeLuca, E. Dorrepaal, N. Fetcher, J.C. Finlay, B.C. Forbes, N.H. French, S. Gauthier, M.P. Girardin, S.J. Goetz, J.G. Goldammer, L. Gough, P. Grogan, L. Guo, P.E. Higuera, L. Hinzman, F.S. Hu, G. Hugelius, E.E. Jafarov, R. Jandt, J.F. Johnstone, J. Karlsson, E.S. Kasischke, G. Kattner, R. Kelly, F. Keuper, G.W. Kling, P. Kortelainen, J. Kouki, P. Kuhry, H. Laudon, I. Laurion, R.W. Macdonald, P.J. Mann, P.J. Martikainen, J.W. McClelland, U. Molau, S.F. Oberbauer, D. Olefeldt, D. Pare, M.-A. Parisien, S. Payette, C. Peng, O.S. Pokrovsky, E.B. Rastetter, P.A. Raymond, M.K. Raynolds, G. Rein, J.F. Reynolds, M. Robards, B.M. Rogers, C. Schadel, K. Schaefer, I.K. Schmidt, A. Shvidenko, J. Sky, R.G.M. Spencer, G. Starr, R.G. Striegl, R. Teisserenc, L.J. Tranvik, T. Virtanen, J. Welker, and S. Zimov. 2016. Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: An expert assessment. Environmental Research Letters 11, paper 034014, 13 pages, doi:10.1088/1748-9326/11/3/034014.	March 2016

Presentations

Presentations	Presentation Date
Zhuang, Q., X. Zhu, C. Prigent, J.M. Melillo, A.D. McGuire, R.G. Prinn, and D.W. Kicklighter. 2012. Influence of changes in wetland inundation extent on net fluxes of carbon dioxide and methane in northern latitudes from 1993 to 2004. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	We conclude that the wetlands play a disproportional role in affecting regional greenhouse gas budgets and considering changes of their inundation extent is important to quantifying the budgets and their impacts on the climate system at northern high latitudes.
Zhuang, Q., J. Tang, Y. Lu, X. Xiong, J. Melillo, R. Prinn, and A.D. McGuire. December 2009. Evaluating contributions of wetland and lake emissions of methane to atmospheric methane concentrations with models of biogeochemistry and atmospheric chemistry transport in northern high latitudes. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
Zhuang, Q., J. Tang, Y. Lu, K. Xu, X. Xiong, J. Melillo, R. Prinn, and A.D. McGuire. May 2009. Evaluating contributions of wetland and lake emissions of methane to atmospheric methane concentrations with a process-based biogeochemistry model and an atmospheric chemistry transport model and satellite retrieval data in northern high latitudes. 2009. Spring Meeting of the American Geophysical Union, Toronto, Canada.	May 2009
Zhuang, Q., J. Tang, J. Melillo, M. Chen, Y. Jiang, D. Kicklighter, R. Prinn, and A.D. McGuire. September 2009. Constraining the uncertainty of carbon dynamics in North America using eddy flux measurements and satellite-based net primary production data. Eighth International Carbon Dioxide Conference, Jena, Germany.	September 2009
Zhuang, Q., J. S. Clein, A. D. McGuire, R. J. Dargaville, V. E. Romanovsky, J. Harden, D. W. Kicklighter, J. M. Melillo, J. E. Hobbie, and E. B. Rastetter. August 2002. Modeling the effects of soil thermal on the seasonality of carbon fluxes across northern temperate and high latitude regions. Annual Meeting, Ecological Society of America, Tucson, AZ.	August 2002
Zhuang, Q., J. S. Clein, A. D. McGuire, R. J. Dargaville, D. W. Kicklighter, J. M. Melillo, J. E. Hobbie, and E. B. Rastetter. December 2001. Modeling the effects of soil thermal dynamics on the seasonality of carbon fluxes across northern temperate and high latitude regions. Fall Meeting, American Geophysical Union, San Francisco, CA.	December 2001
Zhuang, Q., J. Melillo, J. Reilly, A.D. McGuire, R. Prinn, A. Shvikdenko, N. Tchebakova, A. Sirin, S. Maksyutov, A. Peregon, D. Kicklighter, E. Parfenova, and G. Zhou. April 2009. Changes of land cover and land use and greenhouse gas emissions in Northern Eurasia. Annual Meeting of the European Geophysical Union, Vienna, Austria.	April 2009
Zhuang, Q., J. Melillo, D. Kicklighter, R. Prinn, A. D. McGuire, P. Steudler, B. Felzer, and S. Hu. December 2003. Methane emissions from the terrestrial ecosystems of northern high latitudes during the 20th century: A retrospective analysis with a process-based biogeochemistry model. Fall Meeting, American Geophysical Society, San Francisco, CA.	December 2003
Zhuang, Q., J. Melillo, A. McGuire, D. Kicklighter, R. Prinn, P. Steudler, B. Felzer, and S. Hu. December 2004. Methane emissions and the greenhouse gas budget in Alaska for the past and 21st Centuries. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2004
Zhuang, Q., J. M. Melillo, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, A. D. McGuire, B. S. Felzer, and S. Hu. August 2003. Modeling methane consumption and emission between the terrestrial biosphere and the atmosphere. Ecological Society of American Annual Meeting, Savannah, Georgia.	August 2003
Zhuang, Q., J. M. Melillo, D. W. Kicklighter, B. S. Felzer, A. Sokolov, R. G. Prinn, A. D. McGuire, P. A. Steudler, and S. Hu. May 2004. The relationship of global warming potentials to methane and carbon dioxide exchanges in northern high latitudes estimated with a process-based biogeochemistry model. 12th Conference of the International Boreal Forest Research Association, Fairbanks, AK. Invited.	May 2004
Zhuang, Q., J. M. Melillo, D. W. Kicklighter, B. S. Felzer, A. D. McGuire, A. Sokolov, R. G. Prinn, P. A. Steudler, and S. Hu. August 2004. The global warming potential budget of net methane and carbon dioxide exchanges in northern high latitudes. Annual Meeting, Ecological Society of America, Portland, OR.	August 2004
Zhuang, Q., J. M. Melillo, B. S. Felzer, D. W. Kicklighter, A. D. McGuire, and R. G. Prinn. August 2006. A modelling analysis of impact of fire disturbances on net carbon exchanges in boreal terrestrial ecosystems. Ninety-first Annual Meeting, Ecological Society of America, Memphis, TN.	August 2006
Zhuang, Q., J. M. Melillo, B. S. Felzer, D. W. Kicklighter, A. D. McGuire, A. Sokolov, R. G. Prinn, M. C. Sarofim, P. A. Steudler, and S. Hu. August 2005. Modelling CH4 and CO2 fluxes in northern high latitudes under contemporary climate conditions. Annual Meeting of the Ecological Society of America, Montreal, Canada.	August 2005
Zhuang, Q., J. M. Melillo, A. D. McGuire, R. J. Dargaville, D. W. Kicklighter, J. S. Clein, R. B. Myneni, J. Dong, V. E. Romanovsky, J. Harden, and J. E. Hobbie. December 2002. Effects of soil thermal dynamics on carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere. Fall Meeting, American Geophysical Union, San Francisco, California.	December 2002
Zhuang, Q., A. D. McGuire, J. Harden, K. P. O'Neill, and J. Yarie. December 2000. Modeling the carbon dynamics of a fire chronosequence in interior Alaska. American Geophysical Union Fall Meeting, San Francisco.	December 2000
Zhuang, Q., A. D. McGuire, J. Harden, K. P. O'Neill, V. E. Romanovsky, and J. Yarie. 2001. Modeling the carbon dynamics of a fire chronosequence in interior Alaska. Ecological Society of America Annual Meeting, Madison, Wisconsin.	August 2001
Zhu, Z., A.D. McGuire, H. Genet, P. Selmants, and B. 2017. Carbon balance of boreal and arctic Alaska and tropical Hawaii ecosystems. The 10th International Carbon Dioxide Conference, Interlaken, Switzerland. Poster Presentation.	August 2017	United States Geological Survey (USGS) recently completed two regional carbon assessments: Alaska and Hawaii, using remote sensing, simulation modeling, and data collected in the field as the primary methods. This poster provides primary findings of the regional assessments.
Zhang, Y., H. Genet, A.D. McGuire, W.R. Bolton, V. Romanovsky, G. Grosse, and T. Jorgenson. 2013. Modeling thermokarst dynamics in Alaskan ecosystems. 16th International Boreal Forest Research Association Conference, Edmonton, Alberta, Canada.	October 2013	The model tracks thermokarst disturbance and associated vegetation transitions at 1km*1km resolution, and has been designed to be integrated into the Alaska Integrated Ecosystem Model for Alaska and Northwest Canada (AIEM), which includes coupled models of fire disturbance, soil thermal dynamics, and ecosystem structure and function.
Zhang, Y., A.D. McGuire, H. Genet, W.R. Bolton, V.E. Romanovsky, G. Grosse, T. Jorgenson, and M. Lara. 2013. Modeling thermokarst dynamics in Alaska ecosystems: Description of the Predisposition and Initiation/Expansion sub-models. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	The Alaska Thermokarst Model (ATM) is a state-and-transition model that is being developed to predict thermokarst disturbance in response to climate warming. The ATM model has been designed to be integrated into the Alaska Integrated Ecosystem Model (AIEM), which includes coupled models of fire disturbance, soil thermal dynamics, and ecosystem structure and function at 1km*1km resolution. The initial application of the ATM in a test area located within the Alaskan boreal forest ecosystem is pre
Zhang, Y. A.D. McGuire, H. Genet, W.R. Bolton, V.E. Romanovsky, G. Grosse, M.T. Jorgenson. 2012. Modeling thermokarst dynamics in Alaska ecosystems. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	The model tracks thermokarst disturbance and associated vegetation transitions at 1km*1km resolution, and has been designed to be integrated in the Alaska Integrated Ecosystem Model (AIEM), which includes coupled models of fire disturbance, soil thermal dynamics, and ecosystem structure and function.
Zhang, X., A. D. McGuire, and R. W. Ruess. December 2000. Maintenance respiration of black spruce ecosystems in Alaska: Implications for spatial and temporal scaling. American Geophysical Research Union Fall Meeting, San Francisco.	December 2000
Yujin Zhang, Helene Genet, Mark Lara, A. Dave McGuire, Jennifer Roach, Vijay Patil, Vladimir Romanovsky, Bob Bolton and Ruth Rutter. An Assessment of Thermokarst Driven Changes in Land Cover of the Tanana Flats wetland complex of Alaska from 2009-2100 in response to climate warming. AGU 2014 Fall Meeting.	December 2014	In this study, we applied the ATM in a large wetland complex in Interior Alaska (the Tanana Flats) to predict changes in landcover associated to thermokarst from 2009 to 2100. Preliminary simulations over a 10 km x 10 km area of the Tanana Flats suggests that permafrost plateau forests will decrease by 34.9% and collapse scar fens and bogs will increase by 88.3% in this region. After further testing and refinement of the ATM, a next step will be to couple the ATM with a process-based ecosystem
Yuan, F., S. Yi, A.D. McGuire, K.D. Johnson, J. Liang, J. Harden, and E.S. Kasischke. February 2011. Dynamical basin-scale responses of taiga forest and soil C stocks to climate changes and wild fire history in the Yukon River Basin during the last century. Third North American Carbon All-Investigators Meeting, New Orleans, LA.	February 2011
Yuan, F., S. Yi, A.D. McGuire, K.D. Johnson, J. Liang, E. Kasischke, and J. Harden. December 2009. Multiple site evaluation of a dynamic organic soil model for analyzing carbon responses of terrestrial ecosystems to climate change and fire disturbance in interior Alaska. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
Yuan, F., P.E. Thornton, A.D. McGuire, W.C. Oechel, B. Yang, C.E. Tweedie, A. Rogers, and R.J. Norby. 2013. The role of explicitly modelling bryophytes in simulating carbon exchange and permafrost dynamics of an arctic coastal tundra at Barrow, Alaska. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2013	This study explicitly represents the effects of bryophyte function and structure on the exchange of carbon (e.g., summer photosynthesis effects) and energy (e.g., summer insulation effects) with the atmosphere in the Community Land Model (CLM-CN model). Overall, our evaluation indicates that bryophytes are important contributors to land-atmospheric C exchanges in Arctic tundra and that they play an important to permafrost thermal and hydrological processes which are critical to permafrost stab
Yuan, F., A.D. McGuire, S. Yi, E.S. Euskirchen, T.S. Rupp, A.L. Breen, T. Kurkowski, E.S. Kasischke, and J.W. Harden. December 2011. Effects of future warming and fire regime change on boreal soil organic horizons and permafrost dynamics in interior Alaska. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Yi, Shuhua, A. D. McGuire, J. Harden, and E. Kasischke. September 2007. A dynamic soil layer model for assessing the effects of wildfire on high latitude terrestrial ecosystem dynamics. AAAS Arctic Division Meeting, Anchorage, AK.	September 2007
Yi, S., A.D. McGuire, E. Kasischke, J. Harden, and K. Manies. December 2008. Simulating the effects of wildfire on permafrost and soil carbon dynamics over the Yukon River Basin using the Terrestrial Ecosystem Model. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2008
Yi, S., A. D. McGuire, and J. Harden. June 2008. Simulating the effects of wildfire on permafrost and soil carbon dynamics of black spruce over the Yukon River Basin using a terrestrial ecosystem model. Ninth International Conference on Permafrost, University of Alaska Fairbanks, Fairbanks, Alaska.	June 2008
Yi, S., A. D. McGuire, J. Harden, E. Kasischke, K. Manies, L. Hinzman, A. Liljedahl, V. Romanovsky, and S. Marchenko. December 2007. A dynamic soil layer model for assessing the effects of wildfire on high latitude terrestrial ecosystems. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2007
Wullschleger, S.D., L.D. Hinzman, A.D. McGuire, S.F. Oberbauer, W.C. Oechel, R.J. Norby, P.E. Thornton, E.A. Schuur, H.H. Shugart, J.E. Walsh, and C.J. Wilson. December 2010. Climate change experiments in Arctic ecosystems: Scientific strategy and design criteria. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
Woodall, C.W., S.M. Ogle, A.D. McGuire, H.E. Anderson, J.A. Smith, R. Pattison, G.M. Domke, and S.S. Saatchi. 2015. National Greenhouse Gas Inventories in Boreal Forests: The US Experience in Interior Alaska. International Boreal Forest Research Association Meeting, Rovenemi, Finland.	May 2015	The goal of this study was to determine the extent and carbon attributes of managed forest in interior AK as an initial step towards future full accounting of this boreal landscape. Preliminary results suggest that these forests may represent over a third of all forest carbon in the coterminous US, hence the assessment of their carbon balance is critical the monitoring of the US terrestrial carbon sink.
Wolfe, S. A., B. Griffith, R. D. Cameron, and R. G. White. September 2001. Habitat selection by caribou of the Central Arctic Herd: Shifts in distribution and habitat quality. Eighth Annual Conference, The Wildlife Society, Reno/Tahoe, NV.	September 2001
Wipfli, MS, K Heim, J McFarland, S Laske, M Whitman. 2015. How Important are Prey Subsidies for Fishes in Arctic Freshwater Ecosystems? American Fisheries Society national conference. Portland, OR	August 2015	We’ve undertaken a series of studies on the Arctic Coastal Plain of Alaska that aim to identify the major trophic pathways, and relative importance of resource subsidies for Arctic Grayling, one of the most abundant freshwater salmonids on the Arctic. Aquatic and terrestrial invertebrates are key prey for small grayling and stickleback for large grayling, in small, shallow summer foraging habitats.
Wipfli, M.S., and C.V. Baxter. May 2010. Managing salmon returns and riparian forests to benefit salmonids and their riverine habitats: Seeing the unseen. International Symposium: Advances in the Population Ecology of Stream Salmonids, Luarca, Asturias, Spain. (APESS abstract)	May 2010
Wipfli, M.S., N.F. Hughes, M.J. Evenson, E.R. Benson, E.C. Green, L. Gutierrez, J.R. Neuswanger, and M.T. Perry. November 2010. Environmental processes affecting juvenile Chinook salmon in the Chena River, interior Alaska. Annual Meeting, Alaska Chapter, American Fisheries Society, Juneau, AK.	November 2010
Wipfli, M.S., N.F. Hughes, M.J. Evenson, E.R. Benson, E.C. Green, L. Gutierrez, J.R. Neuswanger, and M.T. Perry. May 2010. Environmental processes affecting juvenile Chinook salmon in an interior Alaska river. International Symposium: Advances in the Population Ecology of Stream Salmonids, Luarca, Asturias, Spain. (APESS abstract)	May 2010
Wipfli, M.S., N.F. Hughes, M. Evenson, E.R. Benson, E.C. Green, L. Gutierrez, J.D. Neuswanger, M.T. Perry. 2008. Ecology and demographics of juvenile Chinook salmon in the Chena River, central Alaska. American Fisheries Society Alaska Chapter annual meeting, Anchorage, AK, 27-30 October.	October 2008
Wipfli, M.S., E. Green, C. Binckley, R. Medhurst, C. Mellon. September 2009. Headwater stream productivity: Why does it range so broadly? Special Symposium on Headwater Streams. American Fisheries Society annual meeting, Nashville, TN. (AFS abstract)	September 2009
Wipfli, M.S., D. Rinella, and P. Joy. 2013. Nutrient amendments vs salmon runs: What are we trying to accomplish and are we seeing the bigger picture? American Fisheries Society Western Division annual meeting, Boise, ID, Apr.	April 2013
Wipfli, M.S., A.M. Marcarelli, K.L. Kavanagh, G. Servheen, S.F. Collins, L.A. Felicetti, S.T. Florin, C.V. Baxter, and T. Wheeler. August 2010. Mitigating for the loss of marine nutrients from salmon: Ecological effects of salmon carcass and analog additions to headwater aquatic and terrestrial systems. Ecological Society of America annual meeting, Pittsburg, PA. (ESA abstract)	August 2010
Wipfli, M.S. 2008. How will climate change affect trophic processes and productivity in freshwater-riparian ecosystems? USFWS WildREACH Climate Change Workshop, Fairbanks, AK, 17-19 November.	November 2008
Wipfli, M.S. 2008. How important are fishless headwaters to downstream fishes and food webs? American Fisheries Society national meeting, Ottawa, Ontario, Canada, 18-21 August.	August 2008
Wipfli, M.S. 2007. Food resources regulating salmonid populations in fresh water: Variability through time and space. Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative symposium, Anchorage, AK, February.	February 2007
Wipfli, M.S. 2006. Predicting climate change effects on freshwater foodwebs. Special Session, Climate change and Alaska fisheries. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK, November.	November 2006
Wipfli, M.S. 2006. Marine-derived nutrients in stream ecosystems: The value of setting ecological escapement goals. Special Session, Marine-Derived Nutrients in Alaskan Ecosystems. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK, November.	November 2006
Wipfli, M.S. 2005. Spatial subsidies in riverine food webs: consequences of disturbance and environmental change for stream fishes in Alaska and the Pacific Northwest. American Geophysical Union / North American Benthological Society joint assembly conference. New Orleans, LA.	May 2005
Wipfli, M.S. 2005. Predicted influence of environmental change on nutrient and energy flow in salmonid food webs in Alaska and the Pacific Northwest. American Fisheries Society annual meeting, Anchorage, AK.	September 2005
Wipfli, M.S. 2004. Prey and nutrient subsidies in salmonid food webs: implications for fish and forest management in Alaska. American Fisheries Society-Alaska Chapter annual meeting, Sitka, AK.	November 2004
Wipfli, M.S. Rivers to Oceans: Changing Fisheries. Indigenous Peoples Climate Change Workshop. Fairbanks, AK. Feb 16-18, 2016.	February 2016	Discussed how ecosystems are changing and affecting salmon fisheries in Alaska.
Wipfli, M.S, and B. Lewis. 2012. Marine nutrients and nutrient supplements: ecological effects in streams. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Wipfli, M., A.E. Kohler, B. Lewis, and G. Servheen. September 2011. Marine-derived nutrients and nutrient loss mitigation: Where we've been and where we might be headed. Annual Meeting, American Fisheries Society, Seattle, WA.	September 2011
Wipfli, M. September 2011. Riparian forest conditions influence food supplies for stream salmonids: Managing for increased aquatic productivity. Annual Meeting, American Fisheries Society, Seattle, WA.	September 2011
Wipfli, M. S. 2004. Prey and detritus subsidies in riverine ecosystems: a watershed perspective of marine, terrestrial, and headwater inputs for fish-bearing food webs in coastal Alaska. Special Session, New Directions in Food Web Analysis. North American Benthological Society annual meeting, Vancouver, Canada.	June 2004
Wipfli, M. S. 2004. Food versus habitat: understanding the significance of food and nutrient subsidies in salmonid food webs. Special Session, Food Webs and Fish Carrying Capacity. Western Division American Fisheries Society annual meeting, Salt Lake City, UT.	March 2004
Wipfli, M. Patterns of Food Web Responses to Marine Nutrients in Stream Ecosystems. Western Division of the American Fisheries Society annual conference, Anchorage, Alaska, May 2018.	May 2018	Paper summarizes two decades of science findings on the ecological effects of marine nutrients in stream food webs and fishes. Results have consistently shown large increases in macroinvertebrate and fish growth, body size and condition, density, omega-3 fatty acids, energy reserves and adult returns of salmon in riverine systems that receive adult salmon returns.
Wipfli, M, K. Heim, J. McFarland, S. Laske, M. Whitman. 2015. Arctic Grayling Movement and Foraging Ecology in Arctic Alaska. Advances in the Population Ecology of Salmonids, Girona, Spain, May 25-29.	May 2015	Work is a synopsis of several studies on the Arctic Coastal Plain of Alaska that investigated freshwater foodwebs and the processes that control productivity. We found that Arctic Grayling migrate into summer foraging habitats to feed on abundance aquatic and terrestrial invertebrates, and stickleback between ice-out and ice formation in early and late summer.
Wipfli, M, J McFarland, K Heim, K Gurney, S Laske, M Whitmann, C Arp, J Adams, J Koch. 2014. Freshwater food web processes on the Arctic Coastal Plain, Alaska: Vulnerabilities in a changing environment. Joint Aquatic Sciences Meeting. Portland, OR.	May 2014	Talk summarized how food webs function on the Arctic Coastal Plain, Alaska.
Wipfli, M, E Schoen, B Meyer. 2017. Variation in Resource Subsidies Along Ecological and Latitudinal Gradients in Alaska. American Fisheries Society annual meeting, Tampa, FL.	August 2017	Talk summarizes the resource subsidy patterns we've documented in streams in Alaska. Results show ecological and latitudinal patterns in the magnitude of marine and terrestrial subsidies entering salmonid streams.
Wipfli, M, E Schoen, B Meyer, S Laske, P Joy. 2017. Can we manage resource subsidies and food webs to benefit fishes and fisheries? WDAFS, Missoula, MT	May 2017	Talk is an overview of resources subsidies and their influence on salmon, and the environmental gradients that govern them. Work also highlights the role resource management can play in affecting subsidies through riparian and fisheries management.
Wilson, H.W., T. L. Moran, P. L. Flint, and A. N. Powell. 2003. Survival and reproduction of Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska, Pacific Seabird Group, Victoria, Canada.	February 2003
Wilson, H.M., P. L. Flint, C. L. Moran, and A. N. Powell. 2006. Survival of breeding Pacific common eiders. 25 September, 13th Annual Conference of The Wildlife Society, Anchorage, AK.	September 2006
Wilson, H.M., A.N. Powell , P.L. Flint, and F. Broerman. 2003. Ecology of Pacific common eiders on the Yukon-Kuskokwim Delta, Alaska: Effects of contaminants on reproductive performance. Oral Presentation. 3rd North American Duck Symposium, Sacramento, California, 7 November 2003.	November 2003
Wilson, H., P. L. Flint, and A. N. Powell. 2006. Lead and selenium in breeding Pacific common eiders on the Yukon-Kuskokwim Delta, Alaska. 18 February, Pacific Seabird Group, Girdwood, AK.	February 2006
Wilson, H., A. N. Powell, P. Flint, and T. Moran. 2005. Population dynamics of Pacific common eiders on the Yukon-Kuskokwim Delta, Alaska. Second North American Sea Duck Conference, Annapolis, MD.	November 2005
Wilson, H. M., T. L. Moran, P.L. Flint, and A. N. Powell. 2005. Productivity of Pacific Common Eiders on the Yukon-Kuskokwim Delta, Alaska. Annual Meeting, Pacific Seabird Group/Waterbird Society Meeting, 19-23 January, Portland, OR.	January 2005
Wilson, H. M., T. L. Moran, P.L. Flint, and A. N. Powell. 2002. Breeding biology of common eiders on the Yukon-Kuskokwim Delta, Alaska. Poster; North American Sea Duck Conference, 6-10 November 2002, Victoria, B.C.	November 2002
Wilson, H. M., P. L. Flint, C. L. Moran, and A. N. Powell. 2006. Ecological effects of trace elements: spatio-temporal variability and demographic implications for Pacific Common Eiders. 4 October, IV North American Ornithological Conference, Veracruz, Mexico.	October 2006
Wilson, H. M. and A. N. Powell. 2004. Selenium in Alaskan eiders: patterns and consequences of exposure. 16 March 2004, Alaska Bird Conference, Anchorage.	March 2004
Wilson, E.E., J.D. Muehlbauer, F.J. Dekker, K.D. Keith, A.L. LaBarre, and M.G. Mazzacavallo. 2023. Effects of Watercraft Wakes on Shoreline Erosion, and Potential Impacts for Salmon at Big Lake, Alaska. Mat-Su Salmon Science & Conservation Symposium, Palmer, Alaska, 13-14 November 2023.	November 2023	This poster describes pilot work, and planned future work, aimed at understanding the impact of boat wakes on erosion at Big Lake, AK and the potential consequences for key salmon habitat.
Wild, T., S. Kendall, and A. N. Powell. 2012. How many Smith's Longspurs are in Alaska's Brooks Range?: Estimating breeding density of a polygynandrous species. 25 October. 15th Annual Alaska Bird Conference, Anchorage, AK.	October 2012
Wild, T., S. Kendall, N. Guldager, and A. Powell. 2011. Breeding Smith's Longspur habitat associatations and predicted distribution in the Brooks Range, Alaska. 11 March, AFO/COS/WOS Joint Conference, Kearney, NE.	March 2011
Wild, T. L., S. Kendall, F. Huettmann, C. Villa, and A. N. Powell. 2009. Smith’s longspur density and distribution in Alaska’s Brooks Range. Poster, 16th Wildlife Society Conference, Monterey, CA.	September 2009
White, R.G., D.E. Russell, B. Griffith, and R.D. Cameron. June 2009. Effect of maternal body condition and nutrient intake on milk production of caribou and reindeer. American Society of Mammalogists Annual Meeting, Fairbanks, AK.	June 2009
White, R.G., D.E. Russell, A. Gunn, B. Griffith, G.P. Kofinas, S. Kutz, J. Mameamskum, R. Ashenfelter, C. Daniel, and C. Nicolson. May 2010. Involvement of the CARMA network in analysis, synthesis, and managementof Arctic caribou and reindeer populations. International Polar Year Conference, Oslo, Norway.	May 2010
White, R.G., B. Griffith, D.E. Russell, A. Gunn, and C. Daniel. June 2010. Importance of maternal fat reserves to variation in the energy-protein mismatch of food resources for post-calving caribou. Comparative Nutrition Society Conference, Tucson, AZ.	June 2010
White, R., D. Russell, K. Gerhart, B. Griffith and A. Gunn. 2015. Milk composition: Is it a tool to assess weaning strategies in relation to milk production and plane of nutrition? 14th Arctic Ungulate Conference, Roros, Norway, 17-21 August 2015.	August 2015	This study estimates milk nutrient content for caribou in summer and November. Nutrient outputs at each sampling are then related to maternal body condition at each sampling to understand how body reserves can affect weaning strategies.
White, K., R. C. Lonsinger, S. M. Crimmins, E. M. Anderson, and T. M. LIvieri. 2021. Fine-scale space use by swift foxes on a black-footed ferret recovery site. Swift Fox Conservation Team Meeting.	May 2021	Swift foxes have been implicated as a potential driver of declining populations of endangered black-footed ferrets. We used camera-based monitoring and occupancy analyses to better understand spatial patterns of swift foxes use on a black-ferret recovery site in western Kansas.
Westley, P., Lopez, A., Jalbert, C., and J. Falke. 2016. Towards an understanding of population structure and adaptation by invasive northern pike: An overview of an emerging research program	November 2016	The northern pike invasion to Southcentral Alaska simultaneously represents a pressing conservation crisis and opportunity to learn about about the ecology and evolution of the invaders in novel environments. Here we give a brief overview of a series of recently initiated complementary projects to better understand population structure and adaptation by invasive northern pike.
Wertz, T. L., S. M. Arthur, D. Cooley, B. Griffith, and M. Kienzler. September 2006. Seasonal survival of the Porcupine Caribou Herd in Alaska and northern Yukon Territory, 2003-2006. Session 35, The Wildlife Society 2006 Annual Meeting, Anchorage, AK.	September 2006
Wells, J., S. Crimmins, T. Bentzen, J. Gross, and T. Brinkman. 2023. Effects of hunting risk on the spatial dynamics of a subarctic caribou population. North American Caribou Workshop and Arctic Ungulate Conference, Anchorage, AK.	May 2023	We used a long-term satellite telemetry dataset to quantify the impacts of habitat and hunting pressure on caribou movements and behavior
Weiser, E. and A.N. Powell. 2008. Diet of glaucous gulls breeding at two locations on Alaska's north slope. Poster, 13th Alaska Bird Conference.	March 2008
Weiser, E. and A. Powell. 2009. Does garbage make more glaucous gulls? Poster, 79th Cooper Ornithological Society Conference, Tucson, AZ.	April 2009
Weiser, E. and A. N. Powell. 2010. Using stable isotope analysis to evaluate biases in conventional diet samples. Poster, COS/AOU/SCO Joint Annual Meeting, San Diego, CA.	February 2010
Weiser, E. and A. N. Powell. 2010. Garbage makes more glaucous gulls. COS/AOU/SCO Joint Annual Meeting, San Diego, CA.	February 2010
Weiser, E. and A. N. Powell. 2009. Garbage makes more glaucous gulls. 33rd Waterbird Society Conference, Cape May, NJ.	November 2009
Weiser, E. and A. N. Powell. 2008. Effects of changes in garbage management on glaucous gull diet at Barrow, Alaska. 6 November, 32nd Waterbird Society meeting, South Padre Island, Texas.	November 2008
Weiser, E. L. and A. N. Powell. 2010. Garbage makes more Glaucous Gulls. Pacific Seabird Group, 37th Annual Conference, Long Beach, California	February 2010
Weiser, E. L. and A. N. Powell. 2010. Using stable isotopes to evaluate biases in conventional diet samples. Pacific Seabird Group, 37th Annual Conference, Long Beach, California	February 2010
Ward, N., A.J. Lynch, K. Bouska, H. Embke, J. Kocik, T. Krabbenhoft, D. Lawrence, M. Magee, B.M. Maitland, J. Morton, J.D. Muehlbauer, R. Newman, H.M. Rantala, G.G. Sass, A. Schulz and J. Wilkening. 2022. Using the Resist-Accept-Direct (RAD) framework to reimagine large river management. American Fisheries Society Annual Meeting, American Fisheries Society, Spokane, Washington, 21-25 August 2022.	August 2022	This presentation explores how the Resist-Adapt-Direct framework can be used to structure large river management decisions. It focuses specifically on the Mississippi River system.
Wang, W., A. Rinke, J.C. Moore, X. Cui, D. Ji, Q. Li, N. Zhang, C. Wang, S. Zhang, D.M. Lawrence, A.D. McGuire, W. Zhang, C. Delire, C. Koven, K. Saito, A. MacDougall, E. Burke, and B. Decharme. 2016. Diagnostic and model dependent uncertainty of simulated Tibetan permafrost area. Eleventh International Conference on Permafrost. Potsdam, Germany. Poster Presentation.	June 2016	We perform a land surface model intercomparison to investigate how the simulation of permafrost area on the Tibetan Plateau (TP) varies among 6 modern stand-alone land surface models (CLM4.5, CoLM, ISBA, JULES, LPJ-GUESS, UVic). Although models can produce better permafrost maps using mean annual ground temperature and surface frost index, analysis of simulated soil temperature profiles reveals substantial biases. The current generation of land surface models need to reduce biases in simulated
Walvoord, M., R. Striegl, G. Aiken, M. Dornblaser, S. Ewing, B. Griffith, J. Koch, J. Schmutz, P. Schuster, R. L. Smith, C. Voss, and K. Wickland. March 2010. Climate change and water in interior Alaska: An overview of hydrologic, aquatic biogeochemical, and biodiversity studies in the Yukon River Basin. USGS Global Change Conference, Denver, CO.	March 2010
Walsh, J. E., C. Elfring, C. J. Vorosmarty, and A. D. McGuire. December 2001. Enhancing NASA's contribution to arctic terrestrial hydrology and the study of polar change. Fall Meeting, American Geophysical Union, San Francisco, CA.	December 2001
Walker, C., D.J. Rinella, M.S. Wipfli, and C.A. Stricker. 2005. Tracking marine-derived nutrients in Alaska watersheds. State of the Salmon Conference. Anchorage, AK.	April 2005
Waldrop, M.P., J.W. Harden, M.R. Turetsky, D.G. Peterson, A.D. McGuire, M.J. Briones, A.C. Churchill, D.H. Doctor, and L.E. Pruett. December 2010. Relationships between soil microbial communities and soil carbon turnover along a vegetation and moisture gradient in interior Alaska. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
Waldrop, M.P., J. McFarland, E.S. Euskirchen, M.R. Turetsky, J.W. Harden, K. Manies, M. Jones, and A.D. McGuire. 2012. Carbon balance and greenhouse gas fluxes in a thermokarst bog in interior Alaska: Positive and negative feedbacks from permafrost thaw. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	These data will be used to quantify the extent to which CH4 production in the bog may reduce any potential negative climate feedback.
Waldrop, M.P., J. McFarland, C.I. Czimczik, E.S. Euskirchen, T. Amendolara, G.J. Scott, M.R. Turetsky, J.W. Harden, and A.D. McGuire. December 2011. Changing sources of respiration between a black spruce forest and themokarst bog. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Waldrop, M., J. McFarland, E. Euskirchen, M. Turetsky, J. Harden, K. Manies, M. Jones, and A.D. McGuire. 2013. CO2 and CH4 fluxes and net C storage following permafrost thaw in interior Alaska. Fourth North America Carbon Program All Investigators Meeting, Albuquerque, New Mexico.	February 2013	The data and understanding from these measurements will be incorporated into a peatland biogeochemistry model to assess the response of lowland black spruce in Interior Alaska to thawing permafrost caused by climate change.
W.R. Boloton, A.L. Breen, A.D. McGuire, T.S. Rupp, E. Euskirchen, S. Marchenko, V. E. Romanovsky, and the IEM Team. 2016. The Integrated Ecosystem Model for Alaska and Northwest Canada: An interdisciplinary decision support tool to inform adaptation to Arctic environmental change. The Ecosystem Approach to Management International Conference. Fairbanks, Alaska. Oral Presentation.	August 2016	Together, these three models comprise the Integrated Ecosystem Model (IEM) for Alaska and Northwest Canada. We will present our progress to date, anticipated model projections of landscape structure and function that will inform adaptation to Arctic environmental change, and results from our work to improve the tundra fire and vegetation dynamics component of the IEM.
W. Robert Bolton, Vladimir Romanovsky, A. David McGuire, G. Grosse, and M. Lara. Initial Conceptualization and Simulation of Arctic Tundra Landscape Evolution Using the Alaska Thermokarst Model. AGU 2014 Fall Meeting.	December 2014	In this study, we present our conceptualization and initial results from the ATM model in the area around Barrow, Alaska. The area selected for simulation is located in a polygonal tundra landscape with varying degrees of thermokarst degradation. The goal of this modeling study is to simulate landscape evolution in response to thermokarst disturbance as a result of climate change. The long-term goal is to incorporate the ATM into the Integrated Ecosystem Model (IEM) for Alaska and Northwest
Vorosmarty, C.J., A.D. McGuire, E. Rastetter, J. Hobbie, K. Farrow, and L. Hinzman. November 2008. The United States Arctic Research Commission Scaling Study. First International Symposium on Arctic Research. Tokyo, Japan. Invited.	November 2008
Turetsky, M.R., M.R. Chivers, J.M. Waddington, J.W. Harden, and A.D. McGuire. May 2009. Climatic and vegetation controls on peatland CO2 fluxes in Alaska: Early response to ecosystem-scale drought and soil warming manipulations. Spring Meeting of the American Geophysical Union, Toronto, Canada.	May 2009
Turetsky, M.R., EAG. Schuur, C. Schadel, A.D. McGuire, D. Olefeldt, and G. Hugelius. 2015. Recent synthesis of research on the permafrost carbon feedback. 68th Canadian Geotechnical Conference and 7th Canadian Permafrost Conference. Oral Presentation.	September 2015	Permafrost thaw, and carbon released via the microbial decomposition of previously frozen soil organic matter, is considered one of the most likely positive feedbacks from terrestrial ecosystems to the atmosphere in a warmer world. The rate and form of permafrost carbon release is highly uncertain but crucial for predicting the strength and timing of this carbon cycle feedback during this century and beyond. The main objective of the Permafrost Carbon Network is to use data synthesis and model
Turetsky, M.R., D. Olefeldt, and A.D. McGuire. 2015. Pan-arctic trends in lake and wetland thermokarst: Implications for carbon storage and methane fluxes. Goldschmidt 2015 Conference. Prague. Oral Presentation.	August 2015	We are using pan-arctic mapping of spatial data known to predispose landscapes to thermokarst along with land cover change studies to better understand the relevance of abrupt thaw to the overall permafrost C feedback. We estimate that thermokarst terrains cover 3.6 x 106 km2, or 20% of the northern permafrost domain.
Turetsky, M., J. Harden, A. D. McGuire, and M. Waddington. December 2007. Controls on feedbacks between northern wetlands and the climate system. Fall Meeting of the American Geophysical Union, San Francisco, CA. Invited.	December 2007
Turetsky, M., J. Harden, A. D. McGuire and E. Kasischke. August 2005. Altered hydrology in boreal peatlands: Pervasive drought and the erosion of carbon stocks in high latitudes. Annual Meeting of the Ecological Society of America, Montreal, Canada.	August 2005
Turetsky, M., A.D. McGuire, and D. Olefeldt. 2016. Upscaling permafrost carbon loss from thermokarst and thermal erosion across the northern permafrost domain. Eleventh International Conference on Permafrost. Potsdam, Germany. Poster Presentation.	June 2016	The main objective of this work is to explore how the potential magnitude of permafrost carbon losses resulting from thermokarst compares to carbon losses triggered by the slow gradual deepening of the seasonally thawed layer. On a century timescale, cumulative carbon losses from thermokarst are smaller than estimates of permafrost carbon losses associated with top-down thaw. However, our results indicate that by not accounting for thermokarst and lateral thaw processes, models will underesti
Turetsky, M., A.D. McGuire, and D. Olefeldt. 2015. Assessing the contributions of thermokarst and thermo-erosion in permafrost feedbacks to climate. Fall Meeting of the American Geophysical Union. Oral Presentation. Invited.	December 2015	Our initial results show that cumulative carbon release associated with wetland thermokarst are equivalent to up to 55% of estimated carbon emissions stemming from top-down thaw, suggesting that these localized, abrupt thaw processes are important to consider in assessments of permafrost feedbacks to climate.
Turetsky, M. R., M. Flannigan, J. Harden, E. Kasischke, A. D. McGuire, D. Vitt, and K. Wieder. April 2007. Peatland C responses to changing hydrology and disturbance regimes: Perspectives from boreal North America. First International Symposium on Carbon in Peatlands, Wageningen, the Netherlands.	April 2007
Turetsky, M. R., B. Amiro, M. Flannigan, J. Harden, E. Kasischke, and A. D. McGuire. November 2006. Peatlands and wildfire regimes in the North American boreal forest region: Implications for pyrogenic emissions. Third International Fire Congress, San Diego, CA.	November 2006
Turetsky, M. R., B. Amiro, M. Flannigan, J. Harden, E. Kasischke, and A. D. McGuire. August 2006. Peatlands and wildfire regimes in the North American boreal forest region: Implications for pyrogenic emissions. Wetlands 2006 Symposium, Traverse City, MI. Invited.	August 2006
Trevor J. Krabbenhoft, Bonnie J.E. Myers, Jesse Wong, Cindy Chu, Ralph W. Tingley III, Jeffrey A. Falke, Thomas J. Kwak, Craig P. Paukert, Abigail J. Lynch. 2020. Fish and Climate Change (FiCli) Database: Informing climate change adaptation and management actions for freshwater fishes. World Fisheries Congress, Adelaide, Australia. 11-15 October, 2020.	October 2020	Although climate change is known to affect fish globally, a comprehensive online, public database of how climate change has impacted inland fishes worldwide and adaptation or management practices that may address these impacts does not exist. The FiCli provides access to comprehensive published information to inform inland fish conservation and adaptation planning in a changing climate.
Treat, C., M. R. Turetsky, J. W. Harden, and A. D. McGuire. December 2006. Soil climate controls on methane fluxes in boreal peatlands: Experimental manipulation of soil temperature and water table position in an Alaskan rich fen. Fall Meeting, American Geophysical Union, San Francisco, CA.	December 2006
Trainor, S. F., F. S. Chapin III, M. Bifelt, M. Calef, L. DeWilde, N. Fresco, A. D. McGuire, H. Huntington, O. Huntington, A. Lovecraft, D. C. Natcher, J. Nelson, T. S. Rupp, A. Starfield, and E. Zavaleta. October 2006. Human-fire interactions in the boreal forest of Alaska. AAAS Arctic Division Meeting, Fairbanks, AK.	November 2006
Torvinen, E., Falke, J., Arp, C., Whitman, M., Adams, J. and C. Zimmerman. 2015. Lake Trout (Salvelinus namaycush) otoliths as biochronological indicators of recent climate patterns in Arctic lakes. Alaska Chapter American Fisheries Society Annual Meeting, Homer, Alaska, 4-6 November, 2015.	November 2015	Dendrochronology techniques can be applied to growth-increment widths found in otoliths of long-lived fishes such as Lake Trout (Salvelinus namaycush) to infer climate patterns from growth rates. This master growth chronology may be used as a multidecadal proxy of recent past air and lake temperature regimes and thus will be an important addition to climatological data for the region.
Torvinen, E., Falke, J., Arp, C., Sutton, T., and C. Zimmerman. 2017. Using Lake Trout (Salvelinus namaycush) otoliths to recreate past patterns of recent climate and growth in Arctic lakes. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, Alaska, 19-23 March, 2017.	March 2017	The effects of climate change are amplified in high-latitude ecosystems, and due to the remote location of Arctic Alaska long-term spatially and temporally comprehensive climate estimates are needed. Using otoliths as a data source provides a valuable opportunity to reconstruct patterns in recent climate and Lake Trout growth, critical data for conservation and management in the warming Arctic.
Timm, K., J. Reynolds, J.S. Littell, K. Murphy, E.S. Euskirchen, A.L. Breen, S.T. Gray, A.D. McGuire, S.T. Rupp and the Integrated Ecosystem Model for Alaska and Northwest Canada Team. 2017. Co-production and modeling landscape change – successes and challenges in developing useful climate science. Fall 2017 AGU Meeting. Poster Presentation. Invited.	December 2017	The Integrated Ecosystem Model (IEM) for Alaska and Northwest Canada was developed to understand how climate change influences interactions among disturbance (ex. fire), permafrost, hydrology, and vegetation and identify how these changes affect valuable ecosystem services. The IEM was a unique co-production effort in that it was driven by broad management interests (rather than one research question), and because of the landscape-scale outputs, much broader engagement was warranted.
Tian, H., J. Melillo, D. Kicklighter, S. Pan, J. Liu, A. McGuire, and B. Moore III. July 2001. Regional carbon dynamics in monsoon Asia and its implications to the global carbon cycle. International Geosphere-Biosphere Programme Global Change Open Science Conference, Amsterdam.	July 2001
Thompson, C., J. Beringer, F. S. Chapin III, and A. D. McGuire. September 2003. Relationship of structural complexity to land-surface energy exchange along a gradient from arctic tundra to forest. 54th AAAS Arctic Science Conference, Fairbanks, Alaska.	September 2003
Thompson, C., J. Beringer, A. D. McGuire, and F. S. Chapin III. December 2003. Carbon exchange along a vegetation gradient from arctic tundra to boreal forest. Fall Meeting, American Geophysical Society, San Francisco, CA.	December 2003
Thompson, C., J. Beringer, A. D. McGuire, and F. S. Chapin III. August 2004. Carbon exchange along a gradient from arctic tundra to boreal treeline. Annual Meeting, Ecological Society of America, Portland, OR.	August 2004
Terwilliger, M. and B. Griffith. September 2006. Relationships among population and habitat characteristics for Dall's sheep in Wrangell-St. Elias National Park and Preserve, Alaska. Session 16, The Wildlife Society 2006 Annual Meeting, Anchorage, AK.	September 2006
Taylor, A.R., R.B. Lanctot, and A.N. Powell. 2008. Abundance and distribution of staging shorebirds on Alaska's Chukchi and Beaufort coasts. 13th Alaska Bird Conference.	March 2008
Taylor, A., R. Lanctot, T. Williams, A. Kitaysky, and A. Powell. Evaluating physiologic metrics for assessing site quality for species with varying molt strategies. 4th Western Hemisphere Shorebird Group Meeting, Vancouver, B.C.	August 2011
Taylor, A., R. Lanctot, A. Powell, and T. Williams. 2006. Should I stay or should I go now: the importance of staging sites to shorebirds on Alaska's North Slope. 28 February, Shorebird Science in the Western Hemisphere, Boulder, CO.	February 2006
Taylor, A. R., A. N. Powell, R. B. Lanctot, T. D. Williams, and A. S. Kitaysky. 2005. Using physiology to predict staging behavior of post-breeding shorebirds on Alaska's North Slope. Poster, Annual Meeting, Pacific Seabird Group/Waterbird Society Meeting, 19-23 January, Portland, OR.	January 2005
Tauzer, L., A. N. Powell, and S. Sharbaugh. 2012. Ecosystem shift in an Alaskan boreal forest: evidence that succession drives avian population change. 23 October. 15th Annual Alaska Bird Conference, Anchorage, AK.	October 2012
Tauzer, L. and A. Powell. 2012. Ecosystem shift in an Alaskan boreal forest: is there evidence of change in avian communities? Poster, 5th North American Ornithological Conference, Vancouver, B.C.	August 2012
Tatiana Loboda, Eric Kasischke, A. David McGuire, Helene Genet, and Elizabeth Hoy. 2015. The Alaska Forest Disturbance Carbon Tracking System. North American Carbon Program Meeting, Washington, DC.	January 2015	. This project is designed to deliver estimates of emissions from boreal forest fires in Interior Alaska obtained at moderate spatial resolution (60 m) through data fusion of Landsat-based assessment of burned area and burn severity, Moderate Resolution Imaging Spectroradiometer (MODIS)-based assessment of fire progression, and Terrestrial Ecology Model (TEM) estimates of carbon stocks on the landscape between 2001 and 2010.
Szepanski, M. and B. Griffith. May 2005. Nutritional capacity of moose winter habitats in Alaska. Forty-first North American Moose Conference and Workshop, Whitefish, MT.	May 2006
Swanson, S., K. Kielland, J. Schmidt, S. Crimmins, and M. Flamme. 2023. Seasonal drivers of amplitude patterns in a variably cyclic population of red-backed voles (Nyodes rutilus). Alaska Chapter of the Wildlife Society Annual Conference, Fairbanks, AK.	April 2023	We evaluated the relative influence of intrinsic and extrinsic factors on cyclical dynamics of small mammals in Interior Alaska
Strohm-Klobucar, D.D., and J.A. Falke. 2020. Gaging the importance: characterizing hydrologic regimes of headwater streams in changing boreal ecosystems. Alaska Chapter of the American Fisheries Society Annual Meeting, Fairbanks, Alaska, 23-26 March, 2020.	March 2020	As small streams are highly prevalent and ecologically important to boreal stream ecosystem function, understanding current and future hydrologic patterns will be important for effective aquatic species management.Our hydrologic regime characterization will provide a benchmark with which to detect potential regime shifts that may result from continued climate warming across the Northwest Boreal Ecosystem, and provide valuable information toward management and conservation of important boreal fi
Strohm-Klobucar, D.D., J.A. Falke, and J.W. Stone 2021. Monitoring Arctic Grayling (Thymallus arcticus) demographics and vital rates in a boreal headwater tributary. Alaska Chapter of the American Fisheries Society Annual Meeting [virtual], 22-25 March, 2021.	March 2021	With the imminent threat of climate change, the goal of our study is to better understand the extent tributary watersheds contribute to fish population viability and structure in boreal riverscapes via long-term population monitoring. Our study will advance the current understanding of Arctic Grayling life history and habitat use, allowing managers to adapt and prioritize habitat conservation needs.
Strohm, D.D., Falke, J.A., and Paul, J.D. 2023. Hydrologic regime characterization for wildfire-impacted streams in changing boreal ecosystems. Alaska Chapter of the American Fisheries Society Annual Meeting, Fairbanks, Alaska, 27 – 31, March 2023.	March 2023	Stream flow is a primary driver of boreal stream ecosystems, particularly in headwaters which are rarely monitored and where wildfires are increasing. We developed a hydrologic regime characterization that provides a baseline to identify boreal streams most affected by wildfire, detect potential regime shifts from continued climate warming and increased fire disturbance, and provide information for conservation of boreal aquatic species.
Strohm, D.D., Falke, J.A., and Bennett, A.P. 2022. Gaging the importance of headwater tributaries: hydrologic regime characterization for streams in changing boreal ecosystems. Alaska Chapter of the American Fisheries Society Virtual Meeting, 28 February– 3 March, 2022.	February 2022	Stream flow is a primary ecological driver of stream ecosystems that strongly influences biotic and abiotic processes, particularly in headwater streams that are tightly linked to the surrounding landscape. Our hydrologic regime characterization will provide a baseline for boreal streams that can be used to detect potential regime shifts from continued climate warming at multiple spatial scales, and provide valuable information toward management and conservation of important boreal aquatic spec
Steen, V., A. N. Powell, and S. Skagen. 2011. Potential effects of climate change on the distribution of wetland-associated birds in the Prairie Pothole Region, USA. 14 March, Waterbird Society Annual Meeting, Grand Island, NE.	March 2011
Steen, V. and A. Powell. 2011. Potential effects of climate change on waterbirds in the Prairie Pothole Region, USA. 11 March, AFO/COS/WOS Joint Meeting, Kearney, NE.	March 2011
Steen, V. A. and A. N. Powell. 2009. A comparison of multi-scale habitat models for black terns. Poster, 79th Cooper Ornithological Society Conference, Tucson, AZ.	April 2009
Steen V. A. and A. N. Powell. 2009. Nest site and foraging habitat selection by black terns in the Prairie Pothole region. COS/AOU/SCO Joint Annual Meeting, San Diego, CA.	February 2010
Steen V. A. and A. N. Powell. 2009. Habitat selection of black terns in the Prairie Pothole Region. 33rd Waterbird Society Conference, Cape May, NJ.	November 2009
Steen V. A. and A. N. Powell. 2009. A comparison of multi-scale habitat models for black terns. Poster, 16th Wildlife Society Conference, Monterey, CA.	September 2009
Starbuck, M., A. Metcalfe, J. Muehlbauer, D. Lytle and T. Kennedy. 2023. A deep dive on net-spinning caddisflies (Hydropsyche oslari): measurements of adult body size and stable isotopes provides insights into growing conditions for aquatic insects during the Bug Flow Experiment. National Conference on Ecological Restoration, Albuquerque, New Mexico, 14-19 April 2024.	April 2024	This study examined the responds of body size and feeding of caddisflies in response to the Bug Flow Experiment from Glen Canyon Dam in the Colorado River in Grand Canyon.
Sparks, M.M., Falke, J.A., Westley, P.A.H., Adkison, M.D., Bartz, K., Quinn, T.P., Schindler, D.E., and D. Young. 2018. Predicting developmental phenology in wild populations: a case study with western Alaska sockeye salmon. Indiana Chapter American Fisheries Society Annual Meeting. 12-13 February, 2018. Lafayette, IN.	February 2018	We applied an empirical model to predict hatching and emergence timing to 25 western Alaska sockeye salmon (Oncorhynchus nerka) populations in four lake-nursery systems to explore current patterns and potential responses of early life history phenology to warming water temperatures. Our results reveal marked variation in the timing of hatching and emergence among populations in close proximity on the landscape, which may serve to buffer this metapopulation from climate change.
Sparks, M., Westley, P., Falke, J., and T. Quinn. 2016. Experimental tests for thermal local adaptation and heritable phenotypic plasticity in hatching timing by sockeye salmon using a common garden approach. Evolution 2016, Austin, TX. 17-21 June, 2016.	June 2016	Water temperatures are increasing globally, which can be challenging for northern latitude freshwater fishes where warming is occurring at the fastest rate. Populations may adapt to warming through a combination of genetic or environmentally induced plasticity, but the extent to which these factors suffice in realistic scenarios is unknown. Our results showed that the effects of climate change during the early life history stages may by buffered by phenotypic plasticity, and that thermal variab
Sparks, M., Westley, P., Falke, J., and M. Adkison. 2016. Predicting Sockeye Salmon (Oncorhynchus nerka) hatch timing by incorporating natural variability into an existing model. Western Alaska Interdisciplinary Science Conference. Dillingham, AK. 9-12 March 2016.	March 2016	An important tool for understanding the potential for adaptation is the predicted response of phenology as it relates to changes in early life history developmental temperatures. Here we present work that extends an existing empirical model to incorporate more realistic daily average temperature in place of constant temperature over the course of incubation.
Sparks, M., Westley, P., Falke, J., and M. Adkison. 2015. Predicting Sockeye Salmon (Oncorhynchus nerka) hatch timing by incorporating natural variability into an existing model. Alaska Chapter American Fisheries Society Annual Meeting, Homer, Alaska, 4-6 November, 2015.	November 2015	Experiments investigating the relationship between temperature and developmental rate have been conducted with constant temperature regimes and thus current models for predicting phenology only incorporate average experienced temperatures. Our new model allows users to predict hatch timing without the need to estimate average temperature over the course of incubation and appropriately accounts for average daily temperature and each day’s respective contribution towards development.
Sloan, V.L., C. Iversen, J. Childs, E.S. Euskirchen, A.D. McGuire, and R.J. Norby. 2012. Linking vegetation composition to geomorphic units in a polygonal tundra landscape: A framework for improving estimates of plant functional type coverage in ecosystem models. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	Our results support this hypothesis with respect to center and trough communities, but suggest that further classification of polygon type is required to accurately predict ridge community composition.
Silapaswan, C. S., D. L. Verbyla, and A. D. McGuire. December 2000. The use of remote sensing to evaluate the potential influences of climate change on historical vegetation dynamics. American Geophysical Union Fall Meeting, San Francisco.	December 2000
Shvidenko, A., R.A. Birdsey, A.D. McGuire, W. Kurz, D. Schepaschenko, and I. McCallum. Setember 2009. Impact of forests of northern extratropical belt on global carbon cycle. XIII World Forestry Congress, Buenos Aires, Argentina.	September 2009
Shvidenko, A., M. Apps, F. S. Chapin III, M. Fukuda, A. D. McGuire, and S. Nilsson. November 2003. Disturbances and disturbance regimes in boreal forests: A system-analytical view. International Symposium on Boreal Forest Disturbance and Its Effects to Global Warming, Hokkaido University, Sapporo, Japan. Invited.	November 2003
Shvidenko, A. Z., Ch. Schmullius, M. Apps, K. Bergen, J. Cihlar, D. F. Effremov, R. A. Houghton, A. D. McGuire, S. Nilsson, F. I. Pleshikov, V. A. Rozhkov, E. A. Vaganov, W. Steffen, and D.-E. Schultze. August 2002. On an integrated project on estimating the role of northern Eurasia forests in global biogeochemical cycles. International Boreal Forest Research Association XI International Conference, Boreal Forests and the Environment: Local, Regional, and Global Scales, Krasnoyarsk, Russia. Invited.	August 2002
Shaftel, R., Mauger, S., Falke, J., Rinella, D., Davis, J. and L. Jones. 2017. Characterization of thermal regimes in the Mat-Su Basin. MatSu Science Symposium, Palmer, Alaska, 8-9 November, 2017.	November 2017	Stream temperatures within river networks influence the abundance, distribution, growth rates, phenology, and survival of Pacific salmon. Our final analysis will provide an understanding of the landscape and climate conditions associated with the four thermal regimes, which can be used to help guide habitat conservation strategies and priorities for Mat-Su Basin salmon populations.
Shaftel, R., M.L. Feddern, E. Schoen, C. Cunningham, V.R. von Biela, S. McAfee, and J.A. Falke. 2023. Modeling stream temperature and flow from gridded climate datasets in Alaska’s Yukon and Kuskokwim basins. American Fisheries Society Alaska Chapter Annual Meeting, Fairbanks, Alaska, 27-31 March 2023.	March 2023	Use of empirical stream temperature and streamflow datasets for research in Alaska poses several challenges: data are often unavailable for an area of interest, datasets are typically of short durations, and sites are managed independently across agencies and organizations. For this project, we reviewed gridded climate products and validated models against in situ data to develop more complete historical time series of stream temperature and streamflow in the Yukon and Kuskokwim River basins.
Sexson, M., M. R. Petersen, and A. N. Powell. 2010. Spatiotemporal distribution of spectacled eiders during nonbreeding seasons. 14th Alaska Bird Conference, Anchorage, AK.	November 2010
Sexson, M., M. Petersen, and A. N. Powell. 2010. Preliminary results from ongoing spectacled eider satellite telemetry. Alaska Marine Science Symposium, Anchorage, AK.	January 2010
Sexson, M. G., M. R. Petersen, and A. N. Powell. 2012. Spatiotemporal distribution of Spectacled Eiders throughout the annual cycle. 23 October. 15th Annual Alaska Bird Conference, Anchorage, AK.	October 2012
Sexson, M. G., M. R. Peterse, and A. N. Powell. 2011. Then and now: a comparison in the distribution of Spectacled Eiders at nonbreeding areas in the past 15 years. 4th International Sea Duck Conference, Seward, AK.	September 2011
Servheen, G., M. Wipfli, C.V. Baxter, L. Felicetti, A.M. Marcarelli, and K. Kavanagh. September 2011. Managing and mitigating salmon-derived nutrients: Are analogs salmon avatars? Annual Meeting, American Fisheries Society, Seattle, WA.	September 2011
Sergeant, C. J., and Falke, J. A. 2018. A flexible and intuitive approach for categorizing streamflow patterns in Southeast Alaska. Western Division American Fisheries Society Annual Meeting, Anchorage, Alaska, 21-25 May, 2018.	May 2018	Hydrologic classification is a widely applied practice with numerous analytical approaches, but its fundamental goal is to arrange streams into a logical set of categories based on their flow characteristics. Identification of transitional watersheds across the landscape will provide key information for adaptive fishery and watershed conservation planning.
Sergeant, C. J., J. R. Bellmore, R. A. Bellmore, and J. A. Falke. 2021. How will Pacific salmon in Alaska respond to changes in streamflow and water temperature? AFS Alaska Chapter Meeting, Delivered remotely, 22-25 March, 2021.	March 2021	Preserving habitat diversity across many watersheds supports healthy Pacific salmon populations by dampening the variability of inter-annual abundance. Our end goal is to create a user-friendly life cycle model for communities to explore the impact of various climate change scenarios on salmon.
Sergeant, C. J., J. R. Bellmore, J. A. Falke, and R. A. Bellmore. 2022. Spawning Pacific salmon and DO dynamics in southeastern Alaska rivers. American Fisheries Society Alaska Chapter Annual Meeting, Juneau, Alaska, 28 February-4 March, 2022.	February 2022	Adequate dissolved oxygen (DO) levels are critical for maintaining the health of aquatic organisms in high-latitude freshwater ecosystems. We overlaid hypoxia risk predictions with proximity to current hatchery release sites across the region and the resulting maps have multiple uses, including 1) considering the potential implications of shifting summer streamflow patterns or increased straying in hypoxia-prone areas, and 2) prioritizing future ecological monitoring to determine whether predic
Sergeant, C. J., J. A. Falke, R. L. Crumley, and J. R. Bellmore. 2019. Fuzzy streamflow classification of Gulf of Alaska coastal watersheds to support aquatic research and monitoring. Alaska Chapter American Fisheries Society Annual Meeting, Sitka, Alaska, 19-21 March, 2019.	March 2019	The timing and magnitude of streamflow are critical drivers of freshwater ecosystem health, but are likely to shift in this region due to continued glacial recession, diminishing snowpack, increased rainfall, and warming air temperature. Our ultimate hope is to create a widely used hydrologic framework for guiding aquatic research and monitoring throughout Gulf of Alaska coastal ecosystems.
Sergeant, C. J., J. A. Falke, J. R. Bellmore, and R. A. Bellmore. 2020. How will Pacific salmon in Alaska respond to changes in streamflow and water temperature? ASLO-SFS Joint Summer Meeting, Madison, Wisconsin, 7-12 June, 2020.	June 2020	Preserving habitat diversity across many watersheds supports healthy Pacific salmon populations by dampening the variability of inter-annual abundance. Our end goal is to create a user-friendly life cycle model for communities to explore the impact of various climate change scenarios on salmon.
Sellmer, K, M Wipfli, E Schoen, A Lopez. 2015. Juvenile Chinook Salmon predation in freshwater within the AYK Region. AK AFS	November 2015	Highlights the role predators play in Juvenile Chinook Salmon mortality in selected habitats, and what the important predators are at certain times of the year.
Scott, J., B. Griffith, B. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, A.D. McGuire, and A. Pidgorna. November 2008. Managing for change: Climate change and the National Wildlife Refuge System. Region 4 Climate Change Workshop, USFWS, Atlanta, GA. Invited.	November 2008
Scott, J., B. Griffith, B. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, A.D. McGuire, and A. Pidgorna. November 2008. Managing for change: Climate change and the National Wildlife Refuge System. Region 3 Climate Change Workshop,USFWS, Minneapolis, MN. Invited.	November 2008
Scott, J., B. Griffith, B. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, A.D. McGuire and A. Pidgorna. 2009. Managing for change: Climate change and the National Wildlife Refuge System. Environmental Defense Fund Climate Change Workshop, San Francisco, CA.	February 2009
Scott, J., B. Griffith, B. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, A. D. McGuire, and A. Pidgorna. July 2008. Managing for change: climate change and the National Wildlife Refuge System. Invited presentation, U.S. Fish and Wildlife Service Region 6 Climate Change Workshop, 31 July 2008, Denver, CO.	July 2008
Scott, J., B. Griffith, B. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, A. D. McGuire, and A. Pidgorna. October 2007. Managing for change: climate change and the National Wildlife Refuge System. Invited presentation at the U.S. Environmental Protection Agency SAP 4.4 FACA Review, 22 October 2007, Arlington, VA.	October 2007
Scott, J., B. Griffith, B. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, A. D. McGuire and A. Pidgorna. February 2008. Managing for change: climate change and the National Wildlife Refuge System. Invited presentation, U.S. Fish and Wildlife Service Region 2 Climate Change Workshop. 13 February 2008, Albuquerque, NM.	February 2008
Scott, J. M., B. Griffith, R. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, and A. Pidgorna. June 2007. Managing for change: climate change and the National Wildlife Refuge System. Climate Change Session, 2007 Annual Meeting of the Cooper Ornithological Society, Moscow, ID. Invited.	June 2007
Scott, J. M., B. Griffith, R. Adamcik, D. Ashe, B. Czech, R. Fischman, P. Gonzales, and A. Pidgorna. July 2007. Managing for change: climate change and the National Wildlife Refuge System. Invited paper presented at the Joint FWS/USGS Executive Leadership Team Meeting, Anchorage, AK.	July 2007
Schädel, C., E.A.G. Schuur, A.D. McGuire, J. Canadell, J. Harden, P. Kuhry, V. Romanovsky, and M. Turetsky. 2012. Vulnerability of permafrost carbon research coordination network. Annual Meeting of the European Geophysical Union. Vienna, Austria.	April 2012
Schädel, C., A.D. McGuire, J. G. Canadell, J. W. Harden, P. Kuhry, V. E. Romanovsky, M. R. Turetsky, and E.A.G. Schuur. 2012. Vulnerability of permafrost carbon research coordination network. Tenth International Conference on Permafrost. Salekhard, Russia.	July 2012
Schuur, E.A.G, A.D. McGuire, and V.E. Romanovsky. 2016. Arctic and boreal carbon stocks and vulnerability. Fall 2016 Meeting of the American Geophysical Union. Oral Presentation.	December 2016	A more comprehensive understanding of these landscape processes causing permafrost to thaw abruptly has shown that upland and lowland landscapes are susceptible to abrupt thaw and that this process is likely to be an important mechanism as permafrost thaws in a warming climate. Large-scale models for the most part do not yet incorporate abrupt thaw mechanisms, but can simulate direct climate warming effects on ecosystem carbon balance. Model projections tend to estimate losses of carbon in line
Schuur, E.A., A.D. McGuire, J. Canadell, J.W. Harden, P. Kuhry, V.E. Romanovsky, M.R. Turetsky, and C. Schadel. December 2011. Vulnerability of permafrost carbon research coordination network. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Schoen, ER, JR Neuswanger, CJ Volk, MS Wipfli, JW Savereide. 2020. Stream temperature and flow-related variability in invertebrate drift and Chinook Salmon growth in the Chena River, Alaska. Alaska Chapter American Fisheries Society annual meeting, Fairbanks, AK, March 2020.	March 2020	Study aimed to understand juvenile Chinook growth in relation to temperature- and streamflow-related variability in the concentrations of drifting prey and organic debris in the Chena River Basin, one of the major Chinook producers in interior Alaska. Air temperatures were unusually high and streamflows were unusually low during June and July, leading to faster growth of juvenile Chinook those months than observed during prior years, but growth slowed during August and September, when prolonged
Schoen, E., K Sellmer, M Wipfli, A Lopez, R Ivanoff. 2017. Freshwater predation of juvenile Chinook Salmon in the Arctic-Yukon-Kuskokwim region of Alaska. AK AFS conference, Fairbanks, AK, March 2017.	March 2017	Study identified piscine predators of juvenile Chinook Salmon in selected watersheds of western and interior Alaska. We also determined that spring and fall seasons, and off-channel habitats are times and places that Chinook are most vulnerable to predation.
Schoen, E. M Wipfli, E Trammel, D Rinella, and 12 coauthors. Future of Salmon in the Face of Environmental Change. Western Division of the American Fisheries Society annual conference, Anchorage, Alaska, May 2018.	May 2018	This work is associated with a larger effort (Schoen et al.) on understanding how landscape change will affect salmon, but this piece focuses specifically on key watershed drivers -- glacial loss, wildfires, longer and dryer summers -- on salmon habitat in the Kenai Rivers. Some habitats will become less amenable for rearing and spawning salmon, while others should improve.
Schoen, E, M Wipfli, K Rine, T Nightengale. 2015. Pulsed food subsidies across a habitat mosaic shape growth opportunities for rearing salmon in a glacial Alaskan river. American Fisheries Society national conference. Portland, OR.	August 2015	The study looked at growth limiting factors for Chinook salmon in a large glacial river in Alaska. Bioenergetics results showed salmon growth was more limited by food than temperature in most habitats.
Schoen, E, M Wipfli, K Rine, T Nightengale. 2015. Pulsed food subsidies across a habitat mosaic provide heterogeneous growth opportunities for rearing salmon in a glacial Alaskan river. AK AFS.	November 2015	Bioenergetic models show that food plays a more important role than temperature, and changes in food supplies as a function of hydroelectric developments could affect rearing fishes.
Schoen, E, M Wipfli, J Trammell, D Rinella, and 11 authors. 2017. Pacific Salmon in the Face of Climate and Landscape Change: Insights from the Kenai River. AK AFS conference, Fairbanks, AK, March 2017.	March 2017	The work is a summary of the highlights of a manuscript submitted to Fisheries that talks about how landscape and climate change will likely affect fisheries in southcentral Alaska. It goes on to point out where the risks and opportunities may exist as fisheries change in the coming years.
Schoen, E, M Wipfli, E Trammel, D Rinella, A Floyd, J Grunblatt, et al. Future of Salmon in the Face of Change: Lessons from One of the World's Remaining Productive Salmon Regions. Western Division of the American Fisheries Society annual conference, Anchorage, Alaska, May 2018.	May 2018	Work is a synthesis of the landscape factors affecting salmon populations in Alaska. Paper predicts how salmon will likely be affected by climate and landscape change in the future.
Schoen, E, M Wipfli, B Meyer, K Rine, K Sellmer. 2017. Future of Alaskan Salmon in the Face of Change: Bringing a Food-Web Perspective to Management and Conservation. WDAFS, Missoula, MT	May 2017	Work summarized the outlook for Chinook Salmon and their food webs in the face of climate and landscape change. Especially brought to light the management and conservation implications of managing food webs.
Schmidt, J., A. N. Powell, E. Rexstad, and E. Taylor. 2004. Incubation rates and patterns in a nest-box population of common goldeneyes in interior Alaska. 18 March, 2004. Alaska Bird Conference, Anchorage.	March 2004
Schmidt, J. H., E. Rexstad, E. J. Taylor, and A. N. Powell. 2002. Duckling survival rate and nest attendance patterns in common goldeneyes in interior Alaska: Preliminary Results. Poster; North American Sea Duck Conference, 6-10 November 2002, Victoria, B.C.	November 2002
Samuel, W. T., J. A. Falke, K. D. Tape, S. K. Panda, A. C. Seitz. 2023. When beavers get burned, do fish get fried? Assessing beaver impacts on fish in a fire-dominated ecosystem using a combination of traditional fish sampling and eDNA. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, AK. March 27-31.	March 2023	We used a combination of <i>in situ</i> fish sampling and environmental DNA (eDNA) to assess interactions among beavers, Arctic Grayling, and wildfire in burned streams with beaver ponds, and fit models to predict fish abundance based on eDNA concentrations and environmental characteristics. Beavers partially or fully prevented fish from accessing upstream habitats at most sites, and we plan to apply the abundance-eDNA model to 56 additional sites throughout interior Alaska.
Samuel, W. T., J. A. Falke, K. D. Tape, S. K. Panda, A. C. Seitz. 2022. When beavers get burned, do fish get fried? The role of beavers to mediate wildfire effects on freshwater fish habitat in boreal Alaska. American Fisheries Society 152^nd Annual Meeting, Spokane, WA. August 21–25.	August 2022	Wildfire is a dominant natural disturbance process throughout boreal North America and fires are increasing in frequency, size, and severity; however, little is known about how wildfire affects fish habitat and populations despite the substantial impacts of fire on ecosystem processes, and even less is known about how fire effects may be mediated by species interactions. Overall, this study will help to provide a better understanding of the role of beavers in maintaining diverse and productive
Samuel, W. T., J. A. Falke, K. D. Tape, S. K. Panda, A. C. Seitz. 2022. When beavers get burned, do fish get fried? The role of beavers to mediate wildfire effects on freshwater fish habitat in boreal Alaska. Alaska Chapter American Fisheries Society Meeting [Virtual]. 28 Feb – 4 Mar, 2022.	February 2022	Little is known about how wildfireDownload File affects fish habitat and populations despite the substantial impacts of fire on ecosystem processes, and even less is known about how fire effects may be mediated by species interactions. Our results will provide a better understanding of the role of beavers to maintain diverse and productive aquatic habitats in riverscapes under changing wildfire conditions, and yield important insights about climate adaptation for aquatic organisms in boreal str
Russell, D. E., G. P. Kofinas, B. Griffith, and R. G White. September 2005. Assessing the impacts of oil and gas development on wild Rangifer herds: Data requirements, assessment tools and monitoring initiatives. Seventh International Conference and Exhibition of Offshore Oil and Gas Development--RAO/CIS Offshore 2005. International Symposium on Oil and Gas Activities in the Arctic. St. Petersburg, Russia.	September 2005
Russell, D. E., B. Griffith, and G. Kofinas. January 2003. Caribou in a changing tundra environment. Invited Lecture, Annual Meeting of the Society for Integrative and Comparative Biology. Special Theme - Biology in the Arctic. Toronto, Ontario, Canada.	January 2003
Rover, J., B.K. Wylie, K.P. Wickland, B. Griffith, D. Dahal, and B. Granneman. March 2010. Quantifying surface water in the Yukon River Basin. USGS Global Change Conference, Denver, CO.	March 2010
Rosenberger, A.E., J.B. Dunham, M.S. Wipfli, and J.M. Buffington. 2005. Effects of fire and subsequent channel-reorganizing events on invertebrate drift and rainbow trout diet in small headwater streams 10 years post-disturbance. American Geophysical Union / North American Benthological Society joint assembly conference. New Orleans, LA.	May 2005
Rosenberger, A.E., J. Dunham, M. Wipfli, and J. Buffington. Effects of fire and subsequent channel disturbance on invertebrate drift and trout diet 10 years post-disturbance. Seminar, joint annual meeting of the North American Benthological Society and the American Geophysical Union, New Orleans, Louisiana in a symposium titled, “Interactions Between Physical and Biological Processes in Riverine Landscapes: Ecosystem Response to Physical Processes and Disturbance,” organized by J. Buffington, A. Rosenberger, and C. Baxter. September, 2005.	September 2005	Invited seminar on ecosystem effects of wildfire on headwater streams.
Rosenberger, A.E., J. Dunham, M. Wipfli, and J. Buffington. Effects of fire and subsequent channel disturbance on invertebrate drift and trout diet 10 years post-disturbance. Department of Geosciences colloquium, Idaho State University. February, 2005.	February 2005	Effects of fire on stream ecosystem properties.
Roon, D.A., M.S. Wipfli, and T.L. Wurtz. November 2009. Ecological effects of introduced European bird cherry on salmonid food webs in Anchorage streams. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK. (AFS abstract)	November 2009
Roon, D.A., M.S. Wipfli, T.L.Wurtz, and A. Prakash. November 2010. Invasive European bird cherry affects prey resources for juvenile coho salmon in Anchorage streams. Annual Meeting, Alaska Chapter, American Fisheries Society, Juneau, AK.	November 2010
Roon, D.A., M.S. Wipfli, T.L. Wurtz, and J.J. Kruse. 2012. Effects of riparian invasives on prey resources for juvenile coho salmon in southcentral Alaskan streams. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Roon, D.A., M.S. Wipfli, T.L. Wurtz, and A. Prakash. June 2010. Invasive European bird cherry affects ecological processes within Alaska streams and riparian forests. Joint American Society of Limnology and Oceanography & North American Benthological Society annual meetings, Santa Fe, NM. (ASLO/NABS abstract)	June 2010
Roon, D.A., M.S. Wipfli, T.L. Wurtz, M. Rasy, and W. Rice. 2008. Ecological effects of an introduced tree, European birdcherry, on stream food webs in Campbell and Chester Creeks, Anchorage, Alaska. American Fisheries Society Alaska Chapter annual meeting, Anchorage, AK, 27-30 October.	October 2008
Roon, D., M. Wipfli, and T. Wurtz. September 2011. Invasive European bird cherry affects terrestrially-derived prey abundance for juvenile coho salmon. Annual Meeting, American Fisheries Society, Seattle, WA.	September 2011
Robinson, B., A. Powell, L. Phillips, and H. Coletti. 2014. Are prey remains accurate indicators of chick diet? Implications for long-term monitoring of Black Oystercatchers. 16th Annual Alaska Bird Conference, Juneau, AK.	December 2014	We assess whether NPS long term monitoring adequately assesses prey used by Black Oystercatchers to provision their young.
Robinson, B., A. N. Powell, and L. M. Phillips. 2014. Chick provisioning and nutritional quality of Black Oystercatcher prey. The Wildlife Society Alaska Chapter, Anchorage, AK.	April 2014	We provide preliminary analyses of nutritional value of prey delivers to Black Oystercatcher chicks by their parents. These data will inform managers whether nearshore monitoring is proving data on metrics that apply to multiple trophic levels.
Roach, J., B. Griffith, and D. Verbyla. Lake change: Landscape influences and implications for waterfowl species richness. Poster presented at the 2013 annual Coordinating Committee meeting of the Alaska Cooperative Fish and Wildlife Research Unit. Fairbanks, Alaska	March 2013	There is a net drying trend in lakes in Alaskan National Wildlife Refuges. Because waterfowl species richness is a positive function of lake size, lake drying is expected to reduce waterfowl species richness.
Roach, J., B. Griffith and D. Verbyla. Heterogeneity in High Latitude Lake Area Trends and Relationship to Landscape Characteristics. Poster presented and 2012 Annual Meeting of AGU.	December 2012	This study identified significant, post-1986, declines in lake area in Alaskan National Wildlife Refuges and the landscape characteristics associated with the declines. We also identify substantial heterogeneity in lake change and our data provide local land managers and national strategic planners with the capacity to identify stable lakes and refuges that may serve as centers of biodiversity resiliency in a changing climate.
Roach, J. K. and B. Griffith. August 2008. Heterogeneity in climate warming effects on arctic aquatic habitats. Invited Presentation, Symposium on Effects of Climated-related Drying and Surface Water Loss on Aquatic Ecosystems in Extreme Environments. 138th Annual Meeting, American Fisheries Society, Ottawa, Ontario.	August 2008
Rinella, D.J., M.S. Wipfli, and C. Stricker. August 2010. Relationships among spawning salmon abundance, stable isotope measures of marine-derived nutrient assimilation, and the fitness of stream-dwelling fishes. 7th International Conference on Application of Stable Isotope Techniques to Ecological Studies, Fairbanks, AK. (ISOECOL abstract)	August 2010
Rinella, D.J., M.S. Wipfli, C. Walker, and C.A. Stricker. 2005. Tracking marine-derived nutrients in riverine ecosystems in Alaska. Exxon Valdez Oil Spill Trustee Council Symposium. Anchorage, AK.	January 2005
Rinella, D.J., M.S. Wipfli, C. Walker, and C.A. Stricker. 2005. Marine-derived nutrients (MDN) in riverine ecosystems: Developing monitoring tools for tracking MDN in Alaska watersheds. American Geophysical Union / North American Benthological Society joint assembly conference. New Orleans, LA.	May 2005
Rinella, D.J., M.S. Wipfli, C. Walker, C. Stricker, and R. Heintz. 2006. Marine-derived nutrients (MDN) in riverine ecosystems: developing monitoring tools for tracking MDN in Alaska watersheds. Marine Science Symposium for Alaska, Anchorage, Alaska, 22-24 Jan; and North American Benthological Society annual meeting, Anchorage, AK, 4-8 June.	June 2006
Rinella, D.J., M.S. Wipfli, C. Stricker, and R. Heintz. November 2009. Relationships between spawning salmon abundance and the fitness of stream-dwelling fishes, Kenai Peninsula, Alaska. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK. (AFS abstract)	November 2009
Rinella, D.J., M.S. Wipfli, C. Stricker, and C. Walker. 2008. Evaluating stable isotopes and fatty acids for tracking marine-derived nutrient assimilation in stream-resident fish. North American Benthological Society, Salt Lake City, Utah, 26-29 May, 2008.	May 2008
Rinella, D.J., M.S. Wipfli, C. Stricker, R. Heintz, and C. Walker. 2008. Developing tools for monitoring marine-derived nutrients in Alaska watersheds. American Fisheries Society Alaska Chapter annual meeting, Anchorage, AK, 27-30 October.	October 2008
Rine, K, M Wipfli, E Schoen, C Stricker. 2014. Patterns of energy flow in salmonid food webs within a large glacial Alaskan river. Joint Aquatic Sciences Meeting. Portland, OR.	May 2014	Study showed how energy flows through food webs via prey flow and isotope signals on the Susitna River in Alaska.
Rine, K, M Wipfli, E Schoen, C Stricker, T Nightengale. 2015. Patterns of cross-ecosystem food subsidies to rearing salmonids within a large glacial Alaskan river. AK AFS	November 2015	Shows the importance of food from different sources affects salmonids on the Sustina River, and provides insight into possible landscape and climate change effects.
Rine, K, M Wipfli, E Schoen, C Stricker, J Jones, T Nightengale. 2015. Patterns of Cross-Ecosystem Food Subsidies to Rearing Salmonids within a Large Glacial Alaskan River. American Fisheries Society national meeting. Portland, OR	August 2015	This study aimed to determine large-scale patterns in contributions of terrestrial, riverine, and marine food subsidies to juvenile salmonids in the large, glacially influenced Susitna River, Alaska. Stable isotope mixing models showed that the relative contribution of marine-derived nutrients to juvenile Chinook and Coho salmon increased from June to October, with availability of salmon eggs. Diet patterns differed by macrohabitat type, with aquatic and terrestrial invertebrates dominating in
Richard Birdsey, Yude Pan, A. David McGuire1, Fangmin Zhang, Jing Chen. Past and Prospective Carbon Stocks of United States Forests: Implications for Research Priorities and Mitigation Policies. AGU Fall Meeting 2014.	December 2014	Projections of the future U.S. C sink have raised concerns that it may disappear in a few decades because of slower growth, continued losses of forest area, and increasing demand for timber products especially bioenergy. However, continuing atmospheric and climate changes may delay this projected decline in the sink strength for another 50 years or longer. Research is urgently needed to improve projections of land-use changes and demand for timber, quantify the large-scale effects of atmospher
Ramankutty, N., A. McGuire, and Carbon Cycle Model Linkage Project Participants. July 2001. The effects of historical changes in global agricultural land on the terrestrial carbon cycle. International Geosphere-Biosphere Programme Global Change Open Science Conference, Amsterdam.	May 2001
Powell, Abby N., Emily L Weiser, and Stacia A. Backensto. 2011. Diets of two human-subsidized predators, common raven and glaucous gull, on Alaska's coastal plain. Poster. 18th Annual Conference, The Wildlife Society, Waikoloa, Hawaii.	November 2011
Powell, A. N., R. Suydam, and R. McGuire. Breeding biology and habitat use of king eider on the coastal plain of northern Alaska. CMI Annual Research Review, University of Alaska, Fairbanks.	March 2005
Powell, A. N., R. Bentzen, and S. Oppel. 2013. Survival, site use, and fidelity of king eiders: a large, multiple year study. 29 January, North American Duck Symposium, Memphis, TN.	January 2013	We report on the results of 8 years of satellite telemetry data, focusing on age groups that were previously unstudied. We present information on how satellite telemetry data can be used for more than locations (survival estimates, site fidelity, etc.).
Powell, A. N., E. Rexstad, E. Taylor, and L. Phillips. Importance of the Beaufort Sea to king eiders (Somateria spectabilis). CMI Annual Review, University of Alaska, Fairbanks.	March 2005
Powell, A. N., A. Taylor, and R. Lanctot. 2008. Distribution and movements of staging shorebirds on Alaska's north slope. 30 October, 11th Annual MMS Information Transfer Meeting, Anchorage, Alaska.	October 2008
Powell, A. N. and S. Oppel. 2009. Movements and survival of first- and second-year king eiders in the Bering and Chukchi Seas. 16th Wildlife Society Conference, Monterey, CA.	September 2009
Powell, A. N. and S. Oppel. 2008. Movements and survival of king eiders during their first year at sea. 15 November, 3rd North American Sea Duck Conference, Quebec City, Canada.	November 2008
Powell, A. N. and S. Backensto. 2010. Nesting ecology of Common Ravens in an Arctic industrial landscape. The Wildlife Society, 17th Annual Conference, Snowbird, UT.	October 2010
Powell, A. N. and S. A. Backensto. Foraging ecology of common ravens (Corvus corax) on Alaska's coastal plain. CMI Annual Research Review, University of Alaksa, Fairbanks.	March 2005
Powell, A. N. and R. L. Bentzen. 2012. Using satellite telemetry to determine survival and movements of juvenile sea ducks. Microwave Telemetry, Inc. 2012 Avian and Marine Tracking Conference, Columbia, MD.	March 2012
Powell, A. N. and C. L. Fritz. September 2001. Breeding biology and population trends of western snowy plovers on Marine Corps Camp Pendleton, 1994-1999. The Wildlife Society 8th Annual Conference, Reno/Tahoe, Nevada.	September 2001
Powell, A. N. and A. Taylor. Pre-migratory movements and physiology of shorebirds staging on Alaska's North Slope. CMI Annual Review, University of Alaska, Fairbanks.	March 2005
Powell, A. N. 2002. Are southern California's fragmented salt marshes capable of sustaining populations of Belding's Savannah sparrows? Invited Speaker; Animals of Tidal Marshes Symposium, 25 October 2002, Patuxent, MD.	October 2002
Phillips, L.M., A.N. Powell, and R. Rexstad. 2005. Large scale movements and habitat characteristics of king eiders throughout the nonbreeding season. 2nd North American Sea Duck Conference, Annapolis, MD.	November 2005
Phillips, L., A. Powell, E. Taylor. 2005. Use of the Beaufort Sea by King Eiders. 15 March, 10th Annual MMS Information Transfer Meeting, Anchorage, AK.	March 2005
Phillips, L., A. N. Powell, and E. Taylor. 2004. Molt migration and ecology of King Eiders. Annual Meeting, American Ornithologists Union, Quebec City, QC, Canada. 16-21 August 2004.	August 2004
Phillips, L. and A. N. Powell. 2005. Large-scale movements and habitat use of King Eiders throughout the nonbreeding season. Annual Meeting, Pacific Seabird Group/Waterbird Society Meeting, 19-23 January, Portland, OR.	January 2005
Phillips, L. M., A. N. Powell, and E. Taylor. 2005. Use of the Beaufort Sea by king eiders. 2nd North American Sea Duck Conference, Annapolis, MD.	November 2005
Phillips, L. M., A. N. Powell, and E. J Taylor. 2002. Importance of the Alaskan Beaufort Sea to king eiders during fall migration. Poster; North American Sea Duck Conference, 6-10 November 2002, Victoria, B.C.	November 2002
Phillips, L. M. and A. N. Powell. 2005. Use of the Beaufort Sea by king eiders. 29th Waterbird Society Meeting, Jeckyll Island, GA.	October 2005
Perry, M.T., N.F. Hughes, M.S. Wipfli, J.R. Neuswanger, and M.J. Evenson. November 2009. Growth responses of juvenile Chinook salmon (Oncorhynchus tshawytscha) to food abundance and temperature in the Chena River, interior Alaska. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK. (AFS abstract)	November 2009
Perry, M.T., N.F. Hughes, M.S. Wipfli, J.R. Neuswanger, and M.J. Evenson. April 2010. Summer growth of juvenile Chinook salmon (Oncorhynchus tshawytscha) in an Interior Alaskan River. American Fisheries Society Western Division meeting, Salt Lake City, UT. (AFS abstract)	April 2010
Perry, M.T., M.S. Wipfli, N.F. Hughes, J.R. Neuswanger, A.E. Rosenberger, and M.J. Evenson. 2012. Retrospective analysis of juvenile Chinook salmon growth in an interior Alaska river: insight into marine survival and density dependence. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Perra, M., S. Crimmins, O. Couriot, T. Brnkman, G. Liston, A. Reinking, E. Coban, M. Mandel, N. Boelman, and E. Gurarie. 2023. Using auditory recording units to monitor insect activity and infer harassment intensity.	May 2023	We used audio recorders to quantify insect activity on the northern coastal plains of Alaska
Perkin, J.S., Gido, K.B., Falke, J.A., Crockett, H.J., Sanderson, J.S., Johnson, E.R., and K.D. Fausch. Groundwater depletion in Western Great Plains projected to dry 250 stream-km of fish habitat in the next 45 years. Society for Freshwater Science Annual Meeting. Milwaukee, WI. 17-21 May 2015.	May 2015	Across the western Great Plains of North America, groundwater pumping for irrigated agriculture has depleted regional aquifers that sustain surface flow for native fishes.We synthesize the ecological consequences of past and expected future changes in surface flow using existing fish assemblage data collected from across the region.
Peirce, J.M., T. Otis, M.S. Wipfli, and E.H. Follmann. 2006. Salmon escapement goals for wildlife: a case study at McNeil River, Alaska. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK, 14-16 November.	November 2006
Paul, J.D., and J.A. Falke. 2023. Fine-scale prediction of freshwater habitat potential for Chinook Salmon (Oncorhynchus tshawytscha) across the Yukon and Kuskokwim river basins, Alaska. Alaska Chapter of the American Fisheries Society Annual Meeting, Fairbanks, Alaska, 27 – 31 March 2023.	March 2023	Research into environmental factors involved in the decline of Yukon River Chinook Salmon stocks has exposed information gaps regarding fine-scale freshwater habitat quality known to influence population productivity. We developed spatially-explicit habitat suitability models for spawning and rearing life-stages based on fluvial geomorphic attributes, and are developing a decision support tool based on input from stakeholders tailored to the specific applications of this dataset.
Paukert, C. P. Olden, J. D., Lynch, A.J., Breshears, D. O., Chambers, R. C., Chu, C. Daly, M., Dibble, K.L., Falke, J., Issak, D., Jacobson, P., Jensen, O. P., and D. Munroe. November 2021. Climate Change Effects on North American Fishes to Inform Adaptation Strategies. American Fisheries Society Annual Meeting. Baltimore, MD	November 2021	This study reviewed the effects of climate change on fish and fisheries, and also provide a guide for how managers can implement strategies to project and enhance fish and fish habitat in a changing climate.
Patil, V.,, E. Euskirchen, and B. Griffith. Interaction Between Lakes and Terrestrial Ecosystem Dynamics in the Yukon River Floodplain, USA. Poster presentation at the 2013 annual Coordinating Committee Meeting of the Alaska Cooperative Fish and Wildlife Research Unit. Fairbanks, Alaska.	March 2013	There is a net drying trend for lakes in National Wildlife Refuges in Alaska. The drying alters terrestrial plant community composition on lakes shores and influences C and N dynamics.
Patil, V., and B. Griffith. 2012. Accuracy Assessment of 3 Remotely-Sensed Landcover Maps for the Yukon Flats National Wildlife Refuge. Annual Coordinating Committee Meeting, Alaska Cooperative Fish & Wildlife Research Unit, 26 March 2012, Fairbanks, AK	March 2012
Patil, V., E. Euskirchen, and B. Griffith. Interaction Between Lakes and Terrestrial Ecosystem Dynamics in the Yukon River Floodplain, in Interior Alaska, USA. AGU annual meeting 2012. GC23C-1086.	December 2012	There is a net drying of lakes in Alaskan National Wildlife Refuges. This drying has implications for plant community composition, C and N dynamics, and wildlife communities.
Pastick, N.J. P. Duffy, H. Genet, T.S. Rupp, B.K. Wylie, K.D. Johnson, M.T. Jorgenson, N. Bliss, A.D. McGuire, E.E. Jafarov, and J.F. Knight. 2016. Historical and projected trends in landscape drivers affecting carbon dynamics in Alaska. Fall 2015 Meeting of the American Geophysical Union. Oral Presentation.	December 2016	Modern climate change in Alaska has resulted in widespread thawing of permafrost, increased fire activity, and extensive changes in vegetation distribution and productivity that have significant consequences for socio-ecological systems. Despite observations of the heightened sensitivity of these systems to change, there has not been a comprehensive assessment of factors that drive ecosystem changes throughout Alaska. Here we present research that improves understanding of the main drivers of t
Parrett, L. S., B. Griffith, G. M. Carroll, and D. C. Douglas. September 2006. Dynamic habitat selection by caribou in the National Petroleum Reserve, Alaska. Session 44, The Wildlife Society 2006 Annual Meeting, Anchorage, AK.	September 2006
Parmentier, F.W., T.R. Christensen, L. Sorensen, S. Rysgaard, A.D. McGuire, P.A. Miller, and D.A. Walker. 2012. The impact of lower sea ice extent on arctic greenhouse gas exchange. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	A warming induced by sea ice retreat leads to earlier snowmelt and higher land surface temperatures, leading to longer growing seasons. Longer growing seasons potentially promote the uptake of atmospheric CO2 by plants, while these same conditions also increase respiration and methane emissions.
Parmentier, F.-J.W., W. Zhang, Y. Mi, X. Zhu, P.A. Miller, K. van Huissteden, D. Hayes, Q. Zhuang, A.D. McGuire, and T.R. Christensen. 2014. Higher methane emissions in regions of sea ice retreat. European Geophysical Union, Vienna, Austria.	April 2014	The output from three regional methane models (LPJ-GUESS WhyMe, Peatland-VU and TEM6), designed to be applied to the Arctic Region, are compared to sea ice decline. A similar spatial response to sea ice retreat by these models will increase our confidence that methane emissions in the Arctic are indeed spatially linked to sea ice decline.
Parmentier, F-J., T.R. Christensen, L.L. Sorensen, S. Rysgaard, A.D. McGuire, P.A. Miller, and D.A. Walker. 2013. The impact of a low sea ice extent on arctic greenhouse gas exchange. Annual Meeting of the European Geophysical Union, Vienna, Austria.	April 2013	This review assesses how our current understanding of the Arctic Ocean and high latitude ecosystems can be used to predict the impact of a lower sea ice extent on Arctic greenhouse gas exchange.
PASTICK, NEAL, J., M. TORRE JORGENSON, BURKE J. MINSLEY, BRUCE K. WYLIE, DANA R.N. BROWN, HÉLÈNE GENET, KRISTOFER D. JOHNSON, A. DAVID MCGUIRE, M. ANDY KASS, AND JOSEPH F. KNIGHT. 2015. Towards a better understanding of the sensitivity of permafrost and soil carbon to climate and disturbance-induced change in Alaska. Fall Meeting of the American Geophysical Union. Poster Presentation.	December 2015	Here we present research aimed at characterizing the sensitivity of different permafrost landscapes to climate and disturbance-induced change through a compilation of in-situ observations, remote sensing and geophysical data, time series analyses, and spatio-temporal modeling. Our data-driven approach allowed for the development of a quantitative assessment of permafrost’s potential response to climate change.
O’Donnell, J.A., J.W. Harden, V.E. Romanovsky, M.Z. Kanevskiy, M.T. Jorgenson, S.E. Ewing, A.D. McGuire, and Y. Shur. December 2009. Permafrost controls on soil C storage and turnover in upland black spruce ecosystems of interior Alaska. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
O’Donnell, J.A., J.W. Harden, A.D. McGuire, V.E. Romanovsky, M.Z. Kanevskiy, and T. Jorgenson. December 2010. Soil carbon accumulation and loss in Alaska’s boreal forest: Exploring the interactive effects of wildfire and permafrost thaw. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
Overduijn. K., A. N. Powell and C. Handel. 2012. Brood movement and habitat use by American and Pacific Golden-Plovers. 23 Oct, 15th Annual Alaska Bird Conference, Anchorage, AK.	October 2012
Overduijn, K., C. M. Handel, and A. N. Powell. 2014. Nest site selection by American and Pacific Golden-Plovers. 16th Alaska Bird Conference, Juneau, AK.	December 2014	We examine nest site selection of two sympatric species of plovers in western Alaska.
Overduijn, K. S., C. M. Handel, and A. N. Powell. 2013. Brood movement and habitat use by American and Pacific Golden-Plovers. Alaska Chapter of The Wildlife Society Annual Meeting, Fairbanks, AK.	April 2013	We present preliminary data from an ongoing study of two sympatrically breeding shorebird species in Alaska's subarctic region.
Overduijn, K, S., C. M. Handel, and A. N. Powell. 2013. The effects of habitat change on shorebirds in the Arctic. 5th Western Hemisphere Shorebird Conference, Santa Marta, Colombia.	September 2013	We present preliminary data on two sympatric species of plover nesting in Alaska's Seward Peninsula, with respect to potential increased shrubification.
Otis, E.O., J.M. Peirce, M.S. Wipfli, and E.H. Follmann. November 2010. Radio telemetry to estimate chum salmon streamlife in McNeil River, Alaska. Annual Meeting, Alaska Chapter, American Fisheries Society, Juneau, AK.	November 2010
Oppel, S., R. Federer, A. N. Powell, and T. Hollmen. (2008): Effects of lipid extraction on d13C, d15N, and d34S in avian egg yolk. International Conference on the Applications of Stable Isotope Techniques to Ecological Studies, August 25-29, Honolulu, HI, USA.	August 2008
Oppel, S., L. Dickson, and A. Powell. 2006. Migratory patterns and winter movements of king eiders in the Bering Sea. 6 October, IV North American Ornithological Conference, Veracruz, Mexico.	October 2006
Oppel, S., A.N. Powell, and D. O'Brien. 2008. King eiders in northern Alaska depend on food from breeding grounds for egg production. Poster, 13th Alaska Bird Conference.	March 2008
Oppel, S., A. N. Powell, and D. M. O'Brien. (2008): Individual variation in nutrient allocation to egg production in an arctic sea duck. International Conference on the Applications of Stable Isotope Techniques tpo Ecological Studies, August 25-29, Honolulu, HI, USA.	August 2008
Oppel, S., A. N. Powell, and D. L. Dickson. 2008. Importance of the eastern Chukchi Sea for king eiders during spring and fall migration. 13th Alaska Bird Conference, Fairbanks, AK.	March 2008
Oppel, S. and A. N. Powell. 2009. Carbon isotope turnover as a measure of arrival time in migratory birds. 79th Cooper Ornithological Society Conference, Tucson, AZ.	April 2009
Oppel, S. and A. N. Powell. 2008. How important are body reserves for king eider egg formation in northern Alaska? 11 November, 3rd North American Sea Duck Conference, Quebec City, Canada.	November 2008
Oppel, S. and A. N. Powell. 2008. Does choice of winter region affect nesting success of nesting king eiders in northern Alaska? 11 November, 3rd North American Sea Duck Conference, Quebec City, Canada.	November 2008
Oppel, S. and A. N. Powell. 2008. Assigning sea ducks to wintering regions in the Bering Sea using stable isotopes of feathers. 11 November, 3rd North American Sea Duck Conference, Quebec City, Canada.	November 2008
Oppel, S. and A. N. Powell,2006. Migration strategies and winter movements of king eiders wintering in the Bering Sea. 10 Febraury, 11th Annual Alaska Bird Conference, Juneau, AK.	February 2006
Oppel, S, A. N. Powell, and D. L. Dickson. Importance of the eastern Chukchi Sea for king eiders during spring and fall migration. AOU/COS/SCO, Portland, OR.	August 2008
Olefeldt, D., S. Goswami, G. Grosse, D. Hayes, G. Hugelius, P. Kuhry, A.D. McGuire, V.E. Romanovsky, A.B.K Sannel, E.A.G. Schuur, and M.R. Turetsky. 2015. Thermokarst terrain: Circumpolar distribution and soil carbon vulnerability. Fall 2015 Meeting of the American Geophysical Union. Invited Oral Presentation.	December 2015	Here we present a first circumpolar assessment of the spatial extent and distribution of thermokarst terrain, defined as landscapes where thermokarst landforms either have developed or potentially can develop. With high soil organic carbon content, thermokarst terrain is estimated to store a disproportionate 30% of the total permafrost region soil organic carbon stock in the upper 3 meters of soil, and potentially more than half when accounting for deeper carbon stores. This first-order estimat
O'Donnell, J. A., V. E. Romanovsky, J. W. Harden, K. Yoshikawa, and A. D. McGuire. June 2008. The effect of soil moisture and ice content on the thermal conductivity of organic soil horizons underlain by discontinuous permafrost. Ninth International Conference on Permafrost, University of Alaska Fairbanks, Fairbanks, Alaska.	June 2008
Nueswanger, J., N. Hughes, M. Wipfli, and A. Rosenberger. 2012. Territoriality and shadow competition within schools of juvenile chinook salmon. American Fisheries Society Annual Meeting, Minneapolis, MN.	August 2012
Nolan, M., R. Churchwell, J. Adams, J. McClelland, K. Tape, S. Kendall, A. Powell, K. Dunton, D. Payer, and P. Martin. 2011. Predicting the impact of glacier loss on fish, birds, floodplains, and estuaries on the Arctic National Wildlife Refuge. 4th Interagency Conference on Research in the Watersheds, Fairbanks, AK.	September 2011
Nicol, S., B. Griffith, J. Austen, and C. Hunter. 2012. Implications of Climate Variability for Optimal Monitoring and Adaptive Management in Wetland Systems. Final project presentation to RCRP cooperators, 28 February 2012, Seattle, WA.	February 2012
Neuswanger, JR, ER Schoen, CJ Volk, MS Wipfli, JW Savereide. 2020. Spatiotemporal and flow-related variability in invertebrate drift and Chinook Salmon growth in the Chena River, Alaska. Western Division American Fisheries Society annual meeting, Vancouver, BC, April 2020.	April 2020	Study illustrates how streamflow, temperature, and food supplies can interact to influence juvenile feeding and growth. Juvenile Chinook Salmon growth was high during the unusually warm months of June and July, 2019, and food supplies (drifting prey) increased during periods of high streamflow.
Neuswanger, J.R., N.F. Hughes, M.S. Wipfli, and L.H. Kelly. November 2009. Improved 3-D analysis for underwater video, with applications to wild juvenile Chinook salmon foraging behavior. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK. (AFS abstract)	November 2009
Neuswanger, J.R., N.F. Hughes, M.S. Wipfli, and A.E. Rosenberger. 2012. Territoriality and shadow competition within schools of juvenile Chinook salmon. American Fisheries Society annual meeting, St. Paul, MN, Aug.	August 2013
Neuswanger, J.R., N.F. Hughes, M.S. Wipfli, and A.E. Rosenberger. 2013. 3-D territoriality and shadow competition within schools of juvenile chinook salmon. Oral presentation given to the Alaska Chapter of the American Fisheries Society.	October 2013	This is the first quantiative, rigorous documentation of 3-d territories in river juvenile salmonids and probable mechanisms leading to the shape and nature of these territories.
Neuswanger, J.R., N.F. Hughes, M. Wipfli, and A.E. Rosenberger. September 2011. The effect of drifting debris on drift-feeding fish and foraging models. Annual Meeting, American Fisheries Society, Seattle, WA.	September 2011
Neuswanger, J.R., M.S. Wipfli, M. Evenson, and N.F. Hughes. 2012. Effects of discharge on Chinook salmon recruitment in two interior Alaska rivers: population-level evidence and habitat-related mechanisms. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Neuswanger, J.C., N.F. Hughes, M.S. Wipfli, and L.H. Kelly. May 2010. Improved 3-D video analysis methods, with applications to wild juvenile Chinook salmon foraging video. International Symposium: Advances in the Population Ecology of Stream Salmonids, Luarca, Asturias, Spain. (APESS abstract)	May 2010
Neuswanger, J.C., N.F. Hughes, M.S. Wipfli, L.H. Kelly, and A.E. Rosenberger. November 2010. The roles of territoriality and detritus in wild juvenile Chinook salmon drift-feeding behavior. Annual Meeting, Alaska Chapter, American Fisheries Society, Juneau, AK.	November 2010
Neuswanger, J.C., N.F. Hughes, M.S. Wipfli, L.H. Kelly, and A.E. Rosenberger. May 2010. Intra-school competition and drift-feeding behavior in wild juvenile Chinook salmon. International Symposium: Advances in the Population Ecology of Stream Salmonids, Luarca, Asturias, Spain. (APESS abstract)	May 2010
Neuswanger, J., N. Hughes, M.S. Wipfli, and A.E. Rosenberger. The importance of drifting debris for drift-feeding juvenile Chinook salmon. Seminar, Midnight Sun Science Symposium, Fairbanks, AK (award received). February, 2012.	February 2012	Provides new information on limitations to drift-feeding fishes' energy intake.
Neuswanger, J., M. Wipfli, M. Evenson, A.E. Rosenberger, and N. Hughes. Flow-induced variability in the stock-recruitment relationships of two Interior Alaskan rivers, and related ecological mechanisms. Seminar, Arctic-Yukon-Kuskokwim Sustainable Salmon Initiative’s Chinook Salmon Synthesis Workshop, Anchorage, AK. February, 2012.	February 2012	Provides plausible mechanistic hypotheses accounting for recent declines in Chinook salmon abundance in the Yukon Kuskokwim drainage.
Neuswanger, J, M Wipfli, A Rosenberger. Feeding Ecology of Juvenile Chinook Salmon in the Chena River, Interior Alaska. Western Division of the American Fisheries Society, Anchorage, Alaska, May 2018.	May 2018	Work shows how Juvenile Chinook Salmon compete for food resources, and how food is allocated among these young fish through their behavioral interactions.
Neuneker, K., Falke, J., Nichols, J. and P. Richards. 2017. Migration patterns of adult Chinook Salmon in two Southeast Alaska transboundary rivers. Western Division American Fisheries Society Annual Meeting, Missoula, Montana, 22-25 May, 2017.	May 2017	Chinook Salmon undertake extensive migrations between food resources in the ocean and their freshwater spawning habitats, requiring them to adopt behavioral and physiological traits that will allow them to reach their spawning locations at the optimal time. Our study of the behavioral aspects of Chinook Salmon upriver migrations will help to ensure sustainable harvest of this economically important species through an improved understanding of the attributes that make successful spawners.
Neuneker, K., Falke, J., Nichols, J. and P. Richards. 2017. Migration patterns of adult Chinook Salmon in two Southeast Alaska transboundary rivers. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, Alaska, 19-23 March, 2017.	March 2017	Chinook Salmon undertake extensive migrations between food resources in the ocean and their freshwater spawning habitats, requiring them to adopt behavioral and physiological traits that will allow them to reach their spawning locations at the optimal time. Our study of the behavioral aspects of Chinook Salmon upriver migrations will help to ensure sustainable harvest of this economically important species through an improved understanding of the attributes that make successful spawners.
Neuneker, K., Falke, J., Jaecks, T., Richards, P., and P. Etherton. 2015. Distribution and movement rates of Chinook Salmon Onchorhynchus tshawystcha in the Stikine River based on radio telemetry. Alaska Chapter American Fisheries Society Annual Meeting, Homer, Alaska, 4-6 November, 2015.	November 2015	In order to better understand the spawning distribution, dropout rates and migration rates of Chinook Salmon in the Stikine River, a radio telemetry study was conducted from May-August 2015.Information from this project can be used to validate and inform current mark-recapture studies and escapement estimates and help fisheries managers set more accurate harvest limits for Chinook salmon.
Neuneker, K., Falke, J., Cox, M., Nichols, J. 2018. Proximate composition and bioelectrical impedance analysis of Yukon River Chinook Salmon. Western Division American Fisheries Society Annual Meeting, Anchorage, Alaska, 21-25 May, 2018.	May 2018	Chinook Salmon Oncorhynchus tshawytscha undertake energetically demanding migrations wherein they must have adequate energy reserves to survive to spawning locations and successfully reproduce. The results of this study will provide researchers with benchmark estimates of lipid, water, and protein content for Chinook Salmon in Alaska and a method to non-lethally and accurately estimate energetic status for sensitive populations such as those in Yukon River basin.
Myers-Smith, I., J. Harden, M. Wilmking, C. Fuller, A. D. McGuire, and F. S. Chapin III. April 2007. The influence of disturbance on wetland succession in a permafrost collapse, Fairbanks, Alaska. First International Symposium on Carbon in Peatlands, Wageningen, the Netherlands.	April 2007
Myers-Smith, I., A. D. McGuire, J. Harden, and F. S. Chapin III. September 2003. Carbon exchange along a soil moisture gradient after fire. 54th AAAS Arctic Science Conference, Fairbanks, Alaska.	September 2003
Myers-Smith, I. H., A. D. McGuire, J. W. Harden, and F. S. Chapin. August 2005. The influence of disturbance on carbon exchange and succession in a permafrost collape. Annual Meeting of the Ecological Society of America, Montreal, Canada.	August 2005
Myers-Smith, I. H., A. D. McGuire, F. S. Chapin, and J. W. Harden. December 2004. CO2 and CH4 exchange in interior Alaska: Interactions between fire, water, soils and vegetation. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2004
Myers, B. J. E., A. J. Lynch, T. J. Krabbenhoft, R. P. Kovach, T. J. Kwak, J. A. Falke, C. Chu, D. B. Bunnell, C. P. Paukert. Global synthesis of climate change effects on inland fish. August 2016. American Fisheries Society Annual Meeting. Kansas City, Missouri.	August 2016	Climate change effects on inland fish manifest in non-linear and often confounding ways over varying ecoregions and time-scales. Providing current global trends in fish responses to climate change by ecological and thermal guild will help managers anticipate future changes in fish populations and develop more strategic management plans for individual species and groups.
Muehleck, N., K. Fitzgerald, L.H. Cheng, R. Bellmore, J. Fellman, and J. Falke. 2023. Juvenile Coho Salmon growth patterns track biennial Pink Salmon spawning abundance fluctuations in a southeast Alaska watershed. Meeting of the Alaska Chapter of the American Fisheries Society. 27–31 March, 2023, Fairbanks, AK, USA.	March 2023	Using bioenergetic simulations and field observations of annual growth trends, we explored the hypothesis that Pink Salmon spawning abundance fluctuations confer variable foraging and growth opportunities for juvenile Coho Salmon. Our findings indicate that juvenile salmon had disparate growth outcomes in high- and low- salmon spawning abundance years highlighting the potential importance of life-history and spawning patterns to juvenile growth in coastal drainages of Southeast Alaska.
Muehlbauer, J.D., T.A. Kennedy, A.N. Metcalfe, B.R. Deemer and C.B. Yackulic. 2023. Effects of experimental “Bug Flows” on aquatic insect populations downstream of a large hydropower dam. Annual Meeting, Society for Freshwater Science, 3-7 June 2023.	June 2023	This presentation describes results from the Bug Flows experiment on the Colorado River in Grand Canyon. It explores the impacts of Bug Flows on aquatic invertebrate populations and other ecosystems processes.
Muehlbauer, J.D. and W.T. Samuel 2023. Comparison of eDNA primers for aquatic invertebrate diversity in Interior Alaska streams. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, Alaska, 27-31 March 2023.	March 2023	Describes results of an eDNA study for freshwater biodiversity in Interior Alaska streams.
Muehlbauer, J.D. and Gosselin, M.D. 2022. Wildfire effects on large wood in rivers: perspectives from Interior Alaska. American Fisheries Society Annual Meeting, American Fisheries Society, Spokane, Washington, 21-25 August 2022.	August 2022	This presentation will summarize the effects of wildfire on large woody debris export to rivers. These results will help managers understand fire impacts on freshwater ecosystems.
Muehlbauer, J.D. 2023. Woody debris export to large rivers following wildfire. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, Alaska, 27-31 March 2023.	March 2023	Describes results of a summer 2022 study investigating the effects of wildlife on large woody debris export to large rivers.
Muehlbauer, J.D. 2023. Woody debris export to large rivers following wildfire, Alaska EPSCoR All-Hands Meeting, Girdwood, Alaska, 7-8 February 2023.	February 2023	Describes results of summer 2022 study on the impact of wildfires on large woody debris export to large rivers.
Muehlbauer, J.D. 2022. Wildfire effects on large wood export to rivers: a synthesis. Joint Aquatic Sciences Meeting, Consortium of Aquatic Science Societies, Grand Rapids, Michigan, 14-20 May 2022.	May 2022	This presentation will summarize the effects of wildfire on large woody debris export to rivers. These results will help managers understand fire impacts on freshwater ecosystems.
Muehlbauer, J.D. 2022. Piloting the quantification of large woody debris inputs to large rivers following wildfire. Alaska Chapter of the American Fisheries Society Annual Meeting, Virtual, 28 February-3 March 2022.	February 2022	This presentation describes a pilot study to assess the presence of large wood in rivers after wildfire. This wood is an important habitat resource but also an infrastructure danger.
Morse, J. A., A. N. Powell, and M. Tetreau. 2005. The effects of recreational disturbance on beach nesters: A case study of the black oystercatcher in Alaska. 17 July, 19th Annual Meeting of the Society for Conservation Biology, Universidade de Brasilia, Brazil.	July 2005
Morse, J. A., A. N. Powell, and M. Tetreau. 2004. Assessing effects of recreational activity on productivity of black oystercatchers in Kenai Fjords National Park. 2004. Alaska Bird Conference, Anchorage.	March 2004
Morse, J. A., A. N. Powell and M. Tetreau. 2004. Productivity of Black Oystercatchers at Kenai Fjords National Park: assessing the effects of recreational disturbance. Annual Meeting, American Ornithologists Union, Quebec City, QC, Canada, 16-21 August 2004.	August 2004
Morse, J. A. and A. N. Powell. 2006. The effects of recreational disturbance on breeding black oystercatchers: management implications. 9 February, 11th Alaska Bird Conference, Juneau, AK.	February 2006
Morse, J. A. and A. N. Powell. 2006. Does recreational disturbance impact black oystercatchers breeding in Kenai Fjords National Park? 1 March, Shorebird Science in the Western Hemisphere, Boulder, CO.	March 2006
Michael A. Rawlins, Anthony David McGuire, John S. Kimball, Pawlok Dass, and Members of the Model Integration Team of the Vulnerability of Permafrost Carbon Research Coordination Network. Assessment of Model Estimates of Land-Atmosphere CO2 Exchange Across Northern Eurasia. AGU 2014 Fall Meeting.	December 2014	Here we investigate land-atmosphere carbon dioxide (CO2) dynamics through analysis of net ecosystem productivity (NEP) and the component fluxes of gross primary productivity (GPP) and ecosystem respiration (ER) and soil carbon residence time as simulated by a set of process models over a region spanning the drainage basin of northern Eurasia. Our analysis points to improvements in model elements controlling vegetation productivity and soil respiration as being most beneficial for reducing uncer
Meyer, B., M Wipfli, D Rinella, E Schoen, J Falke. Growth and Foraging Patterns of Juvenile Chinook and Coho Salmon in Three Geomorphically Distinct Sub-Basins of the Kenai River. Western Division of the American Fisheries Society annual conference, Anchorage, Alaska, May 2018.	May 2018	Work shows how climate and landscape change is predicted to change rearing habitats for Chinook and Coho salmon within the Kenai River watershed. A diverse portfolio of habitats will help protect and sustain salmon populations in the future.
Meyer, B, M Wipfli, D Rinella, E Schoen, J Falke. 2020. Landscape diversity filters climate change influence on juvenile Chinook and Coho salmon rearing habitat in the Kenai River. Alaska Chapter of the American Fisheries Society, Fairbanks, AK.	March 2020	Project addresses the role of temperature and food supplies, as influenced by climate change, on Chinook and Coho salmon growth. Results show that glacially influenced rivers are more buffered and less susceptible to warming effects than rivers not influenced by glacial melt.
Meyer, B, M Wipfli, D Rinella, E Schoen, J Falke. 2019. Climate warming effects on juvenile Chinook and Coho salmon growth are modulated by glacial-coverage in sub-basins of the Kenai River watershed. Mat-Su Salmon Symposium. Nov 2019, Palmer, AK.	November 2019	Study shows how water temp, modulated by glacial coverage, will change and affect rearing salmon in Alaska streams. Glacially-influenced watersheds buffer against warming air temperatures in a changing climate.
Meyer, B, M Wipfli, D Rinella, E Schoen, J Falke. 2017. Growth and Foraging Patterns of Juvenile Chinook and Coho Salmon in Three Geomorphically Distinct Sub-Basins of the Kenai River. Alaska Chapter AFS-AWRA, Fairbanks, AK	March 2017	We documented how habitat and food might be changing for juvenile salmon on a major salmon producing river in Alaska. Some streams appear to be at risk in a warming climate, while others may benefit from warmer temperatures.
Meyer, B, M Wipfli, D Rinella, E Schoen, J Falke. 2017. Growth and Foraging Patterns of Juvenile Chinook and Coho Salmon in Three Geomorphically Distinct Sub-Basins of the Kenai River. AFS, Missoula, MT	May 2017	Work documented how habitat and food might be changing for juvenile salmon on a major salmon producing river in Alaska. Some streams appear to be at risk in a warming climate, while others may benefit from warmer temperatures.
Meyer, B, M Wipfli, D Rinella, E Schoen, J Falke. 2017. Growth and Foraging Patterns of Juvenile Chinook and Coho Salmon in Three Geomorphically Distinct Sub-Basins of the Kenai River. Society of Freshwater Science, Raleigh, NC	June 2017	Study showed how habitat and food might be changing for juvenile salmon on a major salmon producing river in Alaska. Some streams appear to be at risk in a warming climate, while others may benefit from warmer temperatures.
Meyer, B, E Schoen, J Neuswanger, C Volk, M Wipfli, B McKenna. Short-term effects of wildfire on juvenile Chinook salmon in the Chena River. 2020 Mat-Su Salmon Symposium. 19 Nov 2020.	November 2020	We investigated the effects of wildfire on food resources and Chinook salmon growth on the Chena River. Fire seems to increase food abundance in the short term in smaller tributary streams that feed into the mainstem, but also increase sediment loading.
Meyer, B, D Rinella, M Wipfli. 2015. Effects of temperature regime on juvenile Chinook and Coho salmon growth in three geomorphologically distinct sub-basins of the Kenai River. AK AFS	November 2015	Shows how temperature in three geomorphologically distinct watersheds on the Kenai Peninsula is expected to affect Coho and Chinook salmon. Climate change will variably affect water temperatures as a function of watershed type, and therefore affect juvenile salmonds differently across sub-basins.
Metcalfe, A.N., T.A. Kennedy, C.A. Fritzinger, M.J. Dodrill, C.M. Szydlo, J.D. Muehlbauer, C.B. Yackulic, B.P. Holton, L.E. Durning, J.B. Sankey and T.J. Weller. 2022. Insectivorous bat foraging along the Colorado River in Grand Canyon is determined by the availability of aquatic flies (Diptera). 16th Biennial Conference of Science & Management on the Colorado Plateau & Southwest Region, Flagstaff, Arizona, 12-15 September 2022.	September 2022	Presentation on effects of aquatic insect on bat feeding in Grand Canyon National Park
Metcalfe, A., T. Kennedy, J. Muehlbauer, M. Dodrill, T. Weller, J. Sankey, L. Durning and C. Fritzinger. 2022. The role of insect abundance and riparian vegetation in driving bat foraging activity in Grand Canyon: insights from a community science project. Glen Canyon Dam Adaptive Management Program Annual Reporting Meeting, Virtual, 11-12 January 2022.	January 2022	This was a presentation at an annual stakeholder meeting. It describes the relationship between aquatic insect abundance and bat activity in the Colorado River in Grand Canyon.
Merritt R Turetsky, Eugenie Susanne Euskirchen, Claudia I Czimczik, Mark P Waldrop, David Olefeldt, Zhaosheng Fan, Evan S Kane, Anthony David McGuire, Jennifer W Harden. Controls on northern wetland methane emissions: insights from regional synthesis studies and the Alaska Peatland Experiment (APEX). AGU 2014 Fall Meeting.	December 2014	At the Alaska Peatland Experiment, we are quantifying CH4 emission using static chambers, automated chambers, and towers. Our results thus far have documented the importance of soil rewetting in governing large CH4 fluxes from northern wetland soils. The APEX time series datasets are being used in a variety of modeling studies, from small-scale soil pore and microbial controls on gas production and transport to regional scale assessments of how carbon cycle feedbacks to climate vary with wetlan
Merems, J.L., A. Brose, S.M. Crimmins, J.L. Price Tack, T.R. Van Deelen. 2020. Effects of wolves on elk habitat use in Wisconsin. Annual Conference of The Wildlife Society.	September 2020	Modeling the impacts of wolves on elk habitat use and population dynamics. Results will lead to improved management and monitoring of restored elk populations in Wisconsin.
Mellon, C.D., M.S. Wipfli, and J.L. Li. 2006. Headwater streams and wildfire: short-term disturbance effects following a stand-replacing fire in northeastern Washington. North American Benthological Society annual meeting, Anchorage, AK, 4-8 June.	June 2006
Mellon, C.D., M.S. Wipfli, and J.L. Li. 2005. Wildfire and headwater stream productivity: Effects of intense fire on food subsidies to downstream and riparian habitats in eastern Washington. American Geophysical Union / North American Benthological Society joint assembly conference. New Orleans, LA.	May 2005
Mellon, C.D., M.S. Wipfli, J.L. Li, D.W. Peterson. 2007. Effects of forest fire on invertebrate dispersal from headwater streams to riparian and downstream habitats in eastern Washington. Special Workshop, Riparian Management in Headwater Catchments: Translating Science into Management. University of British Columbia, Vancouver, BC, Canada. 19-21 February.	February 2007
Melillo, J., H. Tian, A. McGuire, and D. Kicklighter. July 2001. Nitrogen controls on carbon sequestration. International Geosphere-Biosphere Programme Global Change Open Science Conference, Amsterdam.	July 2001
Melillo, J. M., H. Tian, D. W. Kicklighter, A. D. McGuire, B. Moore III, and C. J. Vorosmarty. December 2000. Ecological constraints on carbon sequestration in North America. American Geophysical Union Fall Meeting, San Francisco.	December 2000
Meier, R., J. Harden, C. Silapaswan, D. Swanson, Q. Zhuang, and A. D. McGuire. December 2000. Characterization of soil drainage classes for the study of soil carbon storage in Alaska. American Geophysical Union Fall Meeting, San Francisco.	December 2000
Medhurst, R.B., M.S. Wipfli, C.A. Binckley, J.Y. Kill, and K.P. Polivka. 2007. Differences in headwater stream invertebrate communities across logging and climatic gradients in the Cascade Range, Washington. North American Benthological Society annual meeting, Columbia, S.C., 3-8 June.	June 2007
Medhurst, R.B., C.A. Binckley, J.Y. Kill, M.S. Wipfli, and K. Polivka. 2006. Aquatic invertebrate community structure across climatic and disturbance gradients in the Northern Cascade Range, Washington. North American Benthological Society annual meeting, Anchorage, AK, 4-8 June.	June 2006
McMillan, T., S. Kendall, F. Huettmann, C. Villa, and A. Powell. 2009. Smith's longspur density and distribution in the Brooks Range, Alaska. 79th Cooper Ornithological Society Conference, Tucson, AZ.	April 2009
McMillan, T., F. Huettmann, and A. N Powell. 2008. Modeling Smith's longspur distribution in Alaska's Brooks Range. 13th Alaska Bird Conference.	March 2008
McGuire, R., L. Phillips, A. N. Powell, and R. Suydam. 2004. Factors influencing king eider nest survival on Alaska's North Slope. 16 March 2004, Alaska Bird Conference, Anchorage.	March 2004
McGuire, R., A. Powell, and R. Suydam. 2006. Eider one problem of another: Identifying egg predators through digital photography. 18 February, Pacific Seabird Group, Girdwood, AK.	February 2006
McGuire, R., A. Powell, and R. Suydam. 2005. Incubation behavior of king eiders on Alaska's coastal plain. Second North American Sea Duck Conference, Annapolis, MD.	November 2005
McGuire, R. and A. Powell. 2005. Incubation behavior of king eiders on the North Slope of Alaska. Annual Meeting, Pacific Seabird Group/Waterbird Society Meeting, 19-23 January, Portland, OR.	January 2005
McGuire, R. L., L. Phillips, R. Suydam, and A. N. Powell. 2002. Breeding biology and habitat use by king eider at Teshekpuk Lake and Kuparuk oil fields on the north slope of Alaska. Poster; North American Sea Duck Conference, 6-10 November 2002, Victoria, B.C.	November 2002
McGuire, A.D.. T. Schuur, and C. Schadel. Thawing, greening, browning, and other issues affecting C dynamics in the permafrost region. 2016. Third Carbon from Space Workshop: Reconciling the Land, Ocean, and Atmospheric Components of the Carbon Cycle. University of Exeter, Exeter, United Kingdom. Oral Presentation. Invited.	January 2016	I communicated the current understanding of the role of thawing, greening, browning, and other issues affecting C dynamics in the permafrost region. I also informed the workshop of the new synthesis activities of the Permafrost Carbon Network.
McGuire, A.D., and Members of the Permafrost Carbon Vulnerability Research Coordination Modeling Working Group. 2014. Retrospective and future assessments of the vulnerability of permafrost and carbon in the earth system: Comparison of dynamics among process-based models. Third Carbon Pools in Permafrost Regions Workshop. Stockholm, Sweden. Invited.	May 2014	The results of the retrospective analyses of this study indicate that there are a number of conceptual issues that should be addressed in models that are to be used to assess the vulnerability of permafrost and carbon storage in the permafrost region.
McGuire, A.D., and Members of the Model Integration Team of the Vulnerability of Permafrost Carbon Research Coordination Network. 2013. The vulnerability of permafrost carbon: A retrospective analysis of changes in permafrost area and carbon storage simulated by process-based models between 1960 and 2009. Meeting of the American Geophysical Union, San Francisco, California. Invited.	December 2013	We conducted a retrospective (1960 - 2009) comparison of how large-scale models represent permafrost carbon dynamics. . Some of the models are clearly showing a deceleration in the accumulation of soil carbon during the last fifty years. These results suggest that RH may generally overtake NPP in the future to result in net losses of carbon from permafrost zone soils.
McGuire, A.D., and Members of the Alaska Land Carbon Assessment Team. 2015. A synthesis of terrestrial carbon balance of Alaska and projected changes in the 21st Century: Implications for climate policy and carbon management at local, regional, national, and international scales. North American Carbon Program Meeting. Washington, DC.	January 2015	To better understand how carbon responses in Alaska might influence national climate and carbon management policies, the U.S. Geological Survey, in collaboration with the U.S. Forest Service and university scientists, has conducted a comprehensive assessment of the historical and projected carbon balance for Alaska. This assessment of carbon dynamics in Alaska includes (1) syntheses of soil, vegetation, and surface water carbon stocks and fluxes in Alaska, and (2) state of the art models of fir
McGuire, A.D., T.S. Rupp, and W. Kurz. 2013. Challenges in modelling disturbance regimes and their impacts in arctic and boreal ecosystems. Meeting of the American Geophysical Union, San Francisco, California. Invited.	December 2013	Disturbances in arctic and boreal terrestrial ecosystems influence services provided by these ecosystems to society. Our comparison of what is known about the drivers and impacts of these disturbance regimes indicates that the accurate prediction of fire regimes in arctic and boreal regions is nearest a maturity stage for incorporation into Earth System Models. Rapid progress is needed in modeling changes in other disturbance types and their impacts to facilitate their incorporation into Earth
McGuire, A.D., T.S. Rupp, A. Breen, E. Euskirchen, and V. Romanovsky. 2014. The Integrated Ecosystem Model (IEM) for Alaska and Northwest Canada: An interdisciplinary tool to assess the responses of natural resources to climate change. US – International Association of Landscape Ecologists Annual Symposium. Anchorage, Alaska. Invited.	May 2014	We asynchronously coupled the three models to evaluate the long term effects of changes in climate and fire regime on vegetation distribution, soil organic horizons, and permafrost dynamics at 1km x 1 km resolution for Alaska and Northwest Canada. The simulated changes in landscape structure and function have important implications for the management of natural resources in Alaska and Northwest Canada.
McGuire, A.D., T.R. Christensen, D.J. Hayes, A. Heroult, J.S. Kimball, C. Koven, P. Lafleur, P. Miller, W.C. Oechel, S. Sitch, and M.D. Williams. December 2011. An assessment of the carbon balance of Arctic tundra: Comparisons among observations, process models, and atmospheric inversions. Fall Meeting of the American Geophysical Union, San Francisco, CA. Invited.	December 2011
McGuire, A.D., S.T. Rupp, A. Bennett, W.R. Bolton, A. Breen, E.S. Euskirchen, T. Kurkowski, S.S. Marchenko, V.E. Romanovsky, M.P. Waldrop, and F. Yuan. 2012. The Alaska Integrated Ecosystem Model: An interdisciplinary tool to assess the responses of natural resources in Alaska to climate change. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	These results suggest that there are important linkages between the fire regime, forest composition, and the structure of soil organic horizons that influence the vulnerability of permafrost degradation in interior Alaska. These changes in landscape structure and function have important implications for the management of natural resources in Alaska.
McGuire, A.D., J.W. Harden, S. Yi, D.A. Hayes, E. Euskirchen, D.W. Kicklighter, Q. Zhuang, K. Manies, and M. Turetsky. September 2009. Meeting challenges in modeling carbon-climate feedbacks of northern high latitude ecosystems. International Conference on the Role and Importance of Peatlands in the Global Carbon Cycle: Past, Present, and Future, Prague, The Czech Republic. Invited.	September 2009
McGuire, A.D., Helene Genet, and Members of the Alaska Land Carbon Assessment Team. 2015. A synthesis of carbon balance of Alaska and projected changes in the 21st Century: Implications for climate policy and carbon management at local, regional, national, and international scales. International Boreal Forest Research Association Meeting. Rovenemi, Finland.	May 2015	To better understand how carbon responses in Alaska might influence national climate and carbon management policies, the U.S. Geological Survey, in collaboration with the U.S. Forest Service and university scientists, has conducted a comprehensive assessment of the historical and projected carbon balance for Alaska. This assessment of carbon dynamics in Alaska includes (1) syntheses of soil, vegetation, and surface water carbon stocks and fluxes in Alaska, and (2) state of the art models of fir
McGuire, A.D., H. Genet, Y. He, S. Stackpoole, D. D’Amore, T.S. Rupp, B. Wylie, X. Zhou, and Z. Zhu. 2016. The Alaska Land Carbon Assessment: Baseline and Projected Future Carbon Storage and Greenhouse-gas Fluxes in Ecosystems of Alaska. Interagency Arctic Research Policy Committee (IARPC) Wildfire Collaboration Team Meeting. Oral Presentation. Invited.	February 2016	The Alaska Land Carbon Assessment was conducted to inform mitigation and adaptation policies and land management decisions at sub-regional, regional, and national scales. Ecosystem carbon balance of Alaska was estimated for two time periods, a historical period (1950-2009) and a projected period (2010-2099) by synthesizing results for upland, wetland, and inland aquatic ecosystems.
McGuire, A.D., H. Genet, Y. He, S. Stackpoole, D. D’Amore, T.S. Rupp, B. Wylie, X. Zhou, and Z. Zhu. 2015. The Alaska Land Carbon Assessment: Baseline and Projected Future Carbon Storage and Greenhouse-gas Fluxes in Ecosystems of Alaska. Fall 2015 Meeting of the American Geophysical Union. Oral Presentation. Invited.	December 2015	The Alaska Land Carbon Assessment was conducted to estimate: 1) the amount of carbon stored in ecosystems of Alaska, 2) the capacity of ecosystems to sequester carbon, the rate of greenhouse-gas fluxes (GHG) in and out of the ecosystems, and 3) evaluation of the effects of the natural and anthropogenic processes or driving forces such as wildfire that control ecosystem carbon balance and GHG fluxes. Information derived from this assessment is intended to inform mitigation and adaptation policie
McGuire, A.D., E.S. Euskirchen, D.J. Hayes, M. Balshi, Q. Zhuang, D.W. Kicklighter, and J.M. Melillo. December 2009. Assessing the potential effects of northern high latitude terrestrial ecosystems on the climate system. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
McGuire, A.D., D.J. Hayes, T.R. Christensen, A. Heroult, E.S. Euskirchen, J.S. Kimball, C. Koven, P. Lafleur, P. Miller, W.C. Oechel, P. Peylin, M.D. Williams, and Y. Yi. 2013. An assessment of the carbon balance of arctic tundra in North America: Comparisons among observations, process models, and atmospheric inversions. Fourth North America Carbon Program All Investigators Meeting, Albuquerque, New Mexico.	February 2013	The central estimates of the observations, process-based models, and inversion models each identify stronger sinks in the 2000s compared with the 1990s.
McGuire, A.D., D.J. Hayes, G. Stinson, D. Turner, Y. Wei, L.S. Heath, W. Kurz, T.O. West, B. McConkey, B. de Jong, D.N. Huntzinger, W.M. Post, R.B. Cook, and NACP Regional Synthesis Participants. February 2011. Towards better-constrained assessments of the carbon balance of North America in the 21st Century: A comparison of recent model and inventory-based estimates. Third North American Carbon All-Investigators Meeting, New Orleans, LA.	February 2011
McGuire, A.D., D.J. Hayes, D.W. Kicklighter, Q. Zhuang, M. Chen, K.R. Gurney, J.W. McClelland, J.M. Melillo, B.J.Peterson, and R.G. Prinn. July 2010. Analysis of the carbon balance of boreal Asia from 1997–2006. International Conference on Environmental Observations, Modeling and Information Systems, Tomsk, Russia.	July 2010
McGuire, A.D., D.J. Hayes, D.W. Kicklighter, M. Manizza, Q. Zhuang, M. Chen, M.J. Follows, K.R. Gurney, J.W. McClelland, J.M. Melillo, and B.J. Peterson. March 2010. The changing carbon cycle of the Arctic. State of the Arctic Conference, Miami, FL.	March 2010
McGuire, A.D., D.J. Hayes, D.W. Kicklighter, M. Manizza, Q. Zhuang, M. Chen, M.J. Follows, K.R. Gurney, J.W. McClelland, J.M. Melillo, B.J. Peterson, and R.G. Prinn. September 2009. An analysis of the carbon balance of the Arctic Basin from 1997-2006. Eighth International Carbon Dioxide Conference, Jena, Germany.	September 2009
McGuire, A.D., D. Lawrence, E. Burke, G. Chen, E. Jafarov, C. Koven, A. MacDougall, D. Nikolsky, S. Peng, and A. Rinke. 2015. The Temporal Evolution of Changes in Carbon Storage in the Northern Permafrost Region Simulated by Carbon Cycle Models between 2010 and 2300: Implications for Atmospheric Carbon Dynamics. Fall 2015 Meeting of the American Geophysical Union. Oral Presentation.	December 2015	We conducted an assessment of changes in permafrost area and carbon storage simulated by 8 process-based models between 2010 and 2300. These results suggest that the permafrost carbon feedback would not have substantial consequences until after 2100, and that effective mitigation efforts during this century have the potential to prevent the negative consequences of the permafrost carbon feedback.
McGuire, A.D., D. Lawrence, E. Burke, G. Chen, E. Jafarov, C. Koven, A. MacDougall, D. Nicolsky, S. Peng, and D. Ji. 2016. The Temporal Evolution of Changes in Carbon Storage in the Northern Permafrost Region Simulated by Carbon Cycle Models between 2010 and 2300: Implications for Atmospheric Carbon Dynamics. Eleventh International Conference on Permafrost. Potsdam, Germany. Oral Presentation. Invited.	June 2016	We conducted an assessment of changes in permafrost area and carbon storage simulated by 8 process-based models between 2010 and 2300. These results suggest that the permafrost carbon feedback would not have substantial consequences until after 2100, and that effective mitigation efforts during this century have the potential to prevent the negative consequences of the permafrost carbon feedback.
McGuire, A.D. and T.R. Christensen. October 2010. Regional Carbon Cycle Assessment and Processes: Arctic Tundra. Regional Carbon Cycle Assessment on Lands and Oceans Workshop, Viterbo, Italy. Invited.	October 2010
McGuire, A.D. and Members of the Model Integration Team of the Vulnerability of Permafrost Carbon Research Coordination Network. 2014. The Importance of Explicitly Representing Soil Carbon with Depth over the Permafrost Region in Earth System Models: Implications for Atmospheric Carbon Dynamics at Multiple Temporal Scales between 1960 and 2300. Fall Meeting of the American Geophysical Union. Invited.	December 2014	We conducted an assessment of changes in permafrost area and carbon storage simulated by process-based models between 1960 and 2300. These results indicate that there are substantial differences in responses of carbon dynamics between model that do and do not explicitly represent soil carbon with depth in the permafrost region.
McGuire, A.D. September 2011. An assessment of the carbon balance of arctic tundra: Comparisons among observations, process models, and atmospheric inversions. GreenCyclesII and DEFROST Conference on Ocean-Land Interactions at High Latitudes. Nuuk, Greenland. Invited.	September 2011
McGuire, A.D. September 2011. An assessment of the carbon balance of Arctic tundra: Comparisons among observations, process models and atmospheric inversions. GreenCyclesII and DEFROST Conference on Ocean-Land Interactions at High Latitudes, Nuuk, Greenland. Invited.	September 2011
McGuire, A.D. October 2011. Identifying indicators of state change and forecasting future vulnerability in Alaska boreal ecosystems. 2011 Alaska Fire Science Workshop, Fairbanks, AK. Invited.	October 2011
McGuire, A.D. October 2011. DOS-TEM Modeling Perspective. Workshop to identify data needs for improving model representations of soil carbon responses to climate change in permafrost regions. Argonne National Laboratory, Chicago, IL. Invited.	October 2011
McGuire, A.D. October 2010. Feedbacks of northern high-latitude terrestrial ecosystems to the climate system. Department of Energy Climate Change Workshop on Experiments in High Latitude Ecosystems, Fairbanks, AK. Invited.	October 2010
McGuire, A.D. December 2011. The importance of representing interactions among permafrost dynamics, soil warming, and fire in modeling soil carbon responses of northern high latitude terrestrial ecosystems to climate change. Fall Meeting of the American Geophysical Union, San Francisco, CA. Invited.	December 2011
McGuire, A.D. December 2009. Alaska climate change impacts. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
McGuire, A.D. August 2010. Recent impacts of climate change in Alaska and other boreal regions. XXIII IUFRO World Congress, Seoul, South Korea.	August 2010
McGuire, A.D. August 2009. The contemporary carbon cycle of the pan-Arctic: Data, models and spatial-temporal dynamics. Annual Meeting of the Ecological Society of America, Albuquerque, New Mexico. Invited.	August 2009
McGuire, A.D. April 2010. Keynote: Sensitivity of the carbon cycle in the Arctic to climate change. Symposium on Spatio-Temporal Patterns in the Carbon Balance of Northern High Latitude Regions. Stockholm University. Stockholm, Sweden.	April 2010
McGuire, A.D. 2012. Importance of Research on Climate Change in the Arctic-Boreal Region. NASA Arctic Boreal Vulnerability Experiment (ABoVE) Workshop. Boulder, Colorado. Invited.	June 2012	This presentation was a plenary invited presentation to talk about the importance of research on climate change in the Arctic-Boreal Region.
McGuire, A. D., and the IGBP High Latitude Transect Working Group. April 2005. Responses of high latitude ecosystems to global change: Potential consequences for the climate system. Annual Meeting of the European Geophysical Union, Vienna, Austria. Invited.	April 2005
McGuire, A. D., R. A. Meier, Q. Zhuang, M. Macander, T. S. Rupp, E. Kasischke, D. Verbyla, D. W. Kicklighter, and J. M. Melillo. December 2000. The role of fire disturbance, climate, and atmospheric carbon dioxide in the response of historical carbon dynamics in Alaska from 1950 to 1955: The importance of fire history. American Geophysical Union Fall Meeting, San Francisco.	December 2000
McGuire, A. D., L. Anderson, T. R. Christensen, S. Dallimore, L. Guo, D. Hayes, M. Heimann, T. Lorenson, R. Macdonald, and N. Roulet. December 2007. Sensitivity of the carbon cycle in the Arctic to climate change. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2007
McGuire, A. D., L. A. Joyce, J. S. Clein, D. P. Coulson, and T. J. Burnside. August 2004. Historical changes in carbon storage of the eastern United States: Uncertainties associated with forest harvest and agricultural activities. Annual Meeting, Ecological Society of America, Portland, OR.	August 2004
McGuire, A. D., L. A. Joyce, J. S. Clein, D. P. Coulson, T. J. Burnside, and J. F. Gentry. December 2004. Historical changes in carbon storage of the eastern United States: Uncertainties associated with forest harvest and agricultural activities. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2004
McGuire, A. D., J. S. Clein, and Q. Zhuang. October 2003. Modeling modes of variability in carbon exchange between high latitude terrestrial ecosystems and the atmosphere: A synthesis of progress and identification of challenges. Open Science Meeting, Study of Environmental Change in the Arctic (SEARCH), Seattle, WA.	October 2003
McGuire, A. D., J. Melillo, D. Kicklighter, and L. Joyce. December 2007. The role of nitrogen dynamics in the response of of terrestrial carbon dynamics to changes in atmospheric carbon dioxide, climate, and land use. Fall Meeting of the American Geophysical Union, San Francisco, CA. Invited.	December 2007
McGuire, A. D., E. S. Euskirchen, F. S. Chapin III, M. Balshi, Q. Zhuang, J. Melillo, D. Kicklighter, J. Walsh, and C. Wirth. April 2007. Integrated regional changes in arctic climate feedbacks: Implications for the global climate system. CLASSIC Workshop on Land-Atmosphere Interactions in the Arctic, Abisko, Sweden. Invited.	April 2007
McGuire, A. D., E. Euskirchen, F. S. Chapin III, M. Balshi, Q. Zhuang, J. Melillo, D. Kicklighter, J. Walsh, and C. Wirth. June 2006. Integrated regional changes in boreal forest climate feedbacks: Implications for the global climate system. USGS Global Change Workshop, Denver, CO.	June 2006
McGuire, A. D., E. Euskirchen, F. S. Chapin III, M. Balshi, Q. Zhuang, J. Melillo, D. Kicklighter, J. Walsh, and C. Wirth. August 2006. Integrated regional changes in boreal forest climate feedbacks: Implications for the global climate system. Thirteenth International Boreal Forest Research Association, Umea, Sweden.	August 2006
McGuire, A. D. and the IGBP High Latitude Transect Working Group. October 2001. Environmental variation, vegetation distribution, and carbon dynamics in high latitudes. International Symposium on Arctic Feedbacks to Global Change, Rovaniemi, Finland.	October 2001
McGuire, A. D. and the IGBP High Latitude Transect Working Group. August 2002. Environmental variation, vegetation distribution, and carbon dynamics in high latitudes. International Boreal Forest Research Association XI International Conference, Boreal Forests and the Environment: Local, Regional, and Global Scales, Krasnoyarsk, Russia. Invited.	August 2002
McGuire, A. D. and the IGBP High Latitude Transect Working Group. August 2001. Environmental variation, vegetation distribution, carbon dynamics, and water/energy exchange in high latitudes. Ecological Society of America Annual Meeting, Madison, Wisconsin.	August 2001
McGuire, A. D. and D. Zamolodchikov. April 2003. Status of modeling the location and timing of carbon sources and sinks in northern Eurasia. Northern Eurasian Earth System Partnership Initiative (NEESPI) Science Plan Workshop, Suzdal, Russia. Invited.	April 2003
McGuire, A. D. September 2002. Carbon cycling in extratropical ecosystems of the Northern Hemisphere during the 20th century: A modeling analysis of soil thermal dynamics. IGBP/GCTE-LCUC Transect Meeting, Guangzhou, China. Invited.	September 2002
McGuire, A. D. October 2000. The role of atmospheric carbon dioxide, climate, and disturbance in the carbon balance of the terrestrial biosphere in the twentieth century: Global and regional perspectives. Invited Colloquium, Center for Global and Climate Change Research, McGill University, Montreal, Canada.	October 2000
McGuire, A. D. November 2003. Progress and challenges in modeling soil carbon dynamics of high latitude ecosystems: Temporal and spatial perspectives. International Symposium on Boreal Forest Disturbance and Its Effects to Global Warming, Hokkaido University, Sapporo, Japan. Invited.	November 2003
McGuire, A. D. May 2008. Integrated regional changes in arctic ecosystem feedbacks: Implications for the global climate system. After the Melt: An International Conference on Ecological Responses to Arctic Climate Change, University of Aarhus, Aarhus, Denmark. Invited.	May 2008
McGuire, A. D. May 2004. Climate disturbance interactions in boreal forest ecosystems. Opening presentation, 12th Conference of the International Boreal Forest Research Association, Fairbanks, AK.	May 2004
McGuire, A. D. May 2001. Interactions between arctic terrestrial ecosystems and the climate system. The Arctic Forum 2001, Arlington, Virginia.	May 2001
McGuire, A. D. June 2003. Modeling analyses of circumpolar carbon responses to global change: Approaches and issues. International Arctic Research Center (IARC) and International Arctic Science Committee (IASC) Synthesis Workshop on Current and Future Status of Carbon Storage and Ecosystem-Atmosphere Exchange in the Circumpolar North: Processes, Budgets, and Projections, Skogar, Iceland. Invited.	June 2003
McGuire, A. D. June 2003. Climate change and tundra and boreal communities. A public forum and workshop on Early Warning from Alaska: Global Warming's Front Line, Alaska Conservation Foundation, Washington, DC. Invited.	June 2003
McGuire, A. D. December 2003. Progress and challenges in modeling soil carbon dynamics of high latitude ecosystems: Temporal and spatial perspectives. Fall Meeting, American Geophysical Society, San Francisco, CA. Invited.	December 2003
McGuire, A. D. December 2001. Environmental variation, vegetation distribution, and carbon dynamics in high latitudes. Fall Meeting, American Geophysical Union. Invited.	December 2001
McGuire, A. D. August 2005. Modeling responses of high latitude terrestrial ecosystems to global change. Annual Meeting of the Ecological Society of America, Montreal, Canada.	August 2005
McGuire, A. D. April-May 2006. Integrated regional changes in boreal forests: Implications for the global climate system. International Institute for Applied Systems Analysis, Laxenburg, Austria. Invited.	May 2006
McGuire, A. D. April 2008. Ecosystem changes/processes in high latitudes. NASA Carbon Cycle and Ecosystems Joint Science Workshop, University of Maryland, College Park, MD. Invited.	April 2008
McGuire, A. D. April 2003. Scaling plant gas exchange (photosynthesis, respiration): Modeling interactions between increasing temperature and atmospheric carbon dioxide. Terrestrial Ecosystems Responses to Atmospheric and Climatic Change (TERACC) Workshop on Interactions between Increasing CO2 and Temperature in Terrestrial Ecosystems, Lake Tahoe, California. Invited.	April 2003
McGuire, A. D. April 2003. Landscape analysis of moose distribution relative to fire history in interior Alaska. Second Biennial Alaska Refuge Biologist Conference, U.S. Fish and Wildlife Service, Cooper Landing, Alaska. Invited.	April 2003
McGuire, A. D. April 2003. Effects of increasing temperature and atmospheric CO2 on regional and global C storage. Terrestial Ecosystems Responses to Atmospheric and Climatic Change (TERACC) Workshop on Interactions between Increasing CO2 and Temperature in Terrestrial Ecosystems, Lake Tahoe, California. Invited.	April 2003
McGuire, A. D. April 2002. The role of atmospheric carbon dioxide, climate, and disturbance in the carbon balance of the terrestrial biosphere in the twentieth century: Global and regional perspectives. Workshop on Terrestrial Ecosystems Responses to Atmospheric and Climatic Change (TERACC). Durhan, NH. Invited.	April 2002
McFarland, J.J., M.S. Wipfli, and M.S. Whitman. 2012. Feeding ecology of arctic grayling (Thymallus arcticus) in a small beaded stream on the Arctic Coastal Plain, Alaska. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
McConnell, N.A., A.D. McGuire, J.W. Harden, E.S. Kane, and M.R. Turetsky. December 2010. Controls on ecosystem and root respiration in an Alaskan peatland. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
McConnell, N., A.D. McGuire, J.W. Harden, and M.R. Turetsky. December 2011. Controls on ecosystem respiration in a peat plateau and adjacent collapse formations in interior Alaska. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
McConnell, N., A.D. McGuire, J.W. Harden, E. Kane, and M.R. Turetsky. April 2011. Controls on ecosystem and root respiration in an Alaskan peatland. Annual Meeting of the European Geophysical Union, Vienna, Austria.	April 2011
Martin, A.N., Falke, J.A., Savereide, J.W., and J.A. Lopez. 2016. Estimating the Distribution of Juvenile Chinook Salmon (Oncorhynchus tshawytscha) Using Habitat Modeling and eDNA in an Interior Alaska River Basin. Annual Meeting of the American Fisheries Society, Kansas City, MO, 22-26 August 2016.	August 2016	Identification and protection of anadromous water bodies in Alaska are critical in light of increasing threats to fish populations, yet challenging given budgetary and logistical limitations. Our results will provide tools for managers to rapidly and efficiently map critical rearing habitats and prioritize sampling efforts to expand the known distribution of juvenile salmon in interior Alaska streams.
Martin, A.N., Falke, J.A., Savereide, J.W., and J.A. Lopez. 2015. Estimating the distribution of juvenile Chinook Salmon (Oncorhynchus tshawytscha) using habitat modeling and eDNA in an interior Alaska river basin. Alaska Chapter American Fisheries Society Annual Meeting, Homer, Alaska, 4-6 November, 2015.	November 2015	Newly developed, non-invasive rapid-assessment techniques can reduce costs and sampling effort while increasing detectability (i.e., probability of observing an individual) across life stages. Our results will provide tools for managers to rapidly and efficiently map critical rearing habitats and prioritize sampling efforts to expand the known distribution of juvenile salmon in interior Alaska streams.
Martin, A.N., Falke, J.A., Pomeranz, J.F., and J.W. Saveride. 2014. Habitat potential for juvenile Chinook Salmon (Oncorhynchus tshawytscha) in the Chena River basin, Alaska. Alaska Chapter American Fisheries Society Annual Meeting, Juneau, Alaska, 21-24 October 2014.	October 2014	It is estimated that less than 50% of potential waterbodies (e.g., streams, rivers or lakes) in Alaska have been documented as supporting anadromous fishes; however, identification and protection of unsampled waterbodies will be critical in light of increasing threats to fish populations owing to climate change, fishing pressure, and land development. Our results will help managers map critical rearing habitats, direct field research activities, and assist with prioritizing restoration actions.
Martin, A.M., M.S. Wipfli, and R. Spangler. 2006. Aquatic community development in response to salmon carcass and salmon analog enrichment in newly-restored fish habitat, Resurrection Creek, Alaska. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK, 14-16 November.	November 2006
Martin, A.E., M.S. Wipfli, R. Spangler. 2006. Freshwater community development in response to salmon carcass additions to newly created fish habitats in Alaska. North American Benthological Society annual meeting. Anchorage, AK, 4-8 June.	June 2006
Marchenko, S.S., H. Genet, E.S. Euskirchen, A.L. Breen, A.D. McGuire, S.T. Rupp, V.E. Romanovsky, W.R. Bolton, and J.E. Walsh. 2016. Estimating rates of permafrost degradation and their impact on ecosystems across Alaska and northwest Canada using the process-based permafrost dynamics model GIPL as a component of the Integrated Ecosystem Model (IEM). Fall 2016 Meeting of the American Geophysical Union. Oral Presentation.	December 2016	The modeling results indicate how different types of ecosystems affect the thermal state of permafrost and its stability. Although the rate of soil warming and permafrost degradation in peatland areas are slower than other areas, a considerable volume of peat will be thawed by the end of the current century. The release of carbon and the net effect of this thawing depends on the balance between increased productivity and respiration, which depend, in part, on soil moisture dynamics.
Marchenko, S., Streletskiy, D., Romanovsky, V., McGuire, A.D, and Shiklomanov, N. 2015. The Vulnerability of Permafrost from 1960 to 2300 Based on Simulations of the Process-Based Model GIPL2 Across the Permafrost Region in the Northern Hemisphere: Implications for Soil Carbon Vulnerability. Fall Meeting of the American Geophysical Union. Poster Presentation.	December 2015	The main aim of this study is to evaluate the vulnerability of permafrost under climate warming across the Permafrost Region of the Northern and High-altitude Eurasia in respect to ecosystems stability, infrastructure, socioeconomic impact, and to estimate the volume of newly thawed soils, which could be potential source or sink of additional amount of carbon in the Earth System.
Marchenko, S., Nicolsky, D., Romanovsky, V., McGuire, A.D. The Vulnerability of Permafrost from 1960 to 2300 Based on Simulations of the Process-Based Model GIPL2 Across the Permafrost Region in the Northern Hemisphere: Implications for Soil Carbon Vulnerability. AGU 2014 Fall Meeting.	December 2014	We estimated dynamics of the area and volume of seasonally thawed soils within the three upper meters across the entire Permafrost Domain. Our projections according to the CCSM4 RCP45 climate scenario indicate that the maximum unfrozen volume of soil within three upper meters would change from 11.3 to 17 Mio km3 between 2009 and 2300.
Marchenko, S., H. Genet, E. Euskirchen, A.D. McGuire, T.S. Rupp, W.R. Bolton, A. Breen, M. Waldrop, S. McAfee, F. Yuan, Y. Zhang, V. Romanovsky, J. Walsh, T. Kurkowski, M. Lindgren, A. Bennett, M. Leonawicz, T. Carman, A. Floyd, and K. Timm. 2016. High resolution soil temperature and active layer dataset for estimating rates of permafrost degradation and their impact on ecosystems, infrastructure, CO2 and CH4 fluxes and net C storage following permafrost thaw in Alaska and Northwest Canada. Eleventh International Conference on Permafrost. Potsdam, Germany. Oral Presentation.	June 2016	The Soil Temperature and Active Layer Thickness (ALT) Gridded Database was developed to quantify the nature and rate of permafrost degradation and its impact on ecosystems, infrastructure, CO2 and CH4 fluxes and net C storage following permafrost thaw across Alaska and Northwest Canada. To develop this database, we used the process-based permafrost dynamics model GIPL2 developed in the Geophysical Institute Permafrost Lab, and which is the permafrost module of the Integrated Ecosystem Model for
Marcarelli, A.M., C.V. Baxter, M. Wipfli, A.E. Kohler, S.F. Collins, J.E. Ebel, and G. Servheen. September 2011. Salmon nutrient mitigation effects on bottom-up processes in streams: Lessons from large-scale experiments in central Idaho. Annual Meeting, American Fisheries Society, Seattle, WA.	September 2011
Marcarelli, A., J. Ebel, C. Baxter, A. Kohler, S. Collins, M. Wipfli. 2013. Integrating ecosystem science into fisheries-targeted nutrient enhancement programs aimed to mitigate for the loss of Pacific salmon. American Fisheries Society Western Division annual meeting, Boise, ID, Apr.	April 2013
Manies, K., S. Yi, J. Harden, and A.D. McGuire. December 2008. Boreal forest organic soil properties: Variation within soil profiles and across landscapes. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2008
Maier, J. A. K., J. Ver Hoef, A. D. McGuire, H. A. Maier, L. Saperstein, and R. T. Bowyer. September 2003. Are data on fire history and landscape useful for predicting density and distribution of moose and enhancing management of populations in interior Alaska? 54th AAAS Arctic Science Conference, Fairbanks, Alaska.	September 2003
Macheel, C.A., R.P. Daanen, D. Misra, A.D. McGuire, M. Turetsky, and M. Waddington. December 2009. Application of in-situ measurements to characterize moisture and thermal dynamics in organic soils. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
Macheel, C.A., R. Daanen, D. Misra, A.D. McGuire, M. Turetsky, M. Waddington, and E. Kane. September 2009. Numerical simulations of variably saturated flow with energy and water phase change in northern latitude peatlands. Annual meeting of the Association of Engineering and Environmental Geologists, Reno, Nevada.	September 2009
M.J. Lara, A.D. McGuire, E.S. Euskirchen, H. Genet, V. Sloan, C. Iversen, R. Norby, Y. Zhang, F. Yuan. Changes in landscape-level carbon balance of an arctic coastal plain tundra ecosystem between 1970-2100, in response to projected climate change. AGU 2014 Fall Meeting.	December 2014	We extrapolate model results at a 1km2 resolution across the ~1800 km2 Barrow Peninsula using a tundra geomorphology map, describing ten dominant geomorphic tundra types (Lara et al. submitted), to estimate the likely change in landscape-level carbon balance between 1970 and 2100 in response to projected climate change. Preliminary model runs for this region indicated temporal variability in response to carbon and active layer dynamics, specific to tundra geomorphic type. Overall, results sugge
Lyu, Z., H. Genet, Y. He, Q. Zhuang, A.D. McGuire, A. Bennett, A. Breen, J. Clein, E.S. Euskirchen, K. Johnson, T. Kurkowski, N. Pastick, T.S. Rupp, B. Wylie, Z. Zhu. 2017. The Role of Driving Factors in Historical and Projected Carbon Dynamics in Wetland Ecosystems of Alaska. Fall 2017 Meeting of American Geophysical Union. Poster Presentation.	December 2017	Wetlands are important terrestrial ecosystems in Alaska. It is important to understand and assess their role in the regional carbon dynamics in response to historical and projected environmental conditions. A coupled modeling framework that incorporates a fire disturbance model and two biogeochemical models was used to assess the relative influence of changing climate, atmospheric carbon dioxide (CO2) concentration, and fire regime on the historical and future carbon balance in wetland ecosyste
Lynch, A. J., B. J. E. Myers,, T. J. Krabbenhoft, R. P. Kovach, T. J. Kwak, J. A. Falke, C. Chu, D. B. Bunnell, C. P. Paukert. Global synthesis of the projected and documented effects of climate change effects on inland fishes. July 2017. Fisheries Society of the British Isles Annual Symposium. Exeter, United Kingdom.	July 2017	This study summarizes how climate change affects inland fish and fisheries at a global scale.
Lynch, A. J., B. J. E. Myers, J. Wong, C. Chu, R. W. Tingley, III, J. A. Falke, T. J. Kwak, C. P. PaukertI, T. J. Krabbenhoft. August 2021. Fish and Climate Change (FiCli) Database: Informing management actions for responding to climate change effects in fishes. Tennessee River Basin Network annual meeting.	July 2021	We examined the effects of climate change on inland fishes using the Fish and Climate Change Database (FiCli).
Lynch, A. J., B. J. E. Myers, J. Wong, C. Chu, J. A. Falke, T. J. Kwak, C. P. Paukert, R. W. Tingley, III, T. J. Krabbenhoft. November 2021. Reducing uncertainty in climate change responses for inland fisheries management: a decision-path approach. American Fisheries Society Annual Meeting.	May 2021	We examine the effects of climate change on inland fishes using the Fish and Climate Change Database (FiCli).
Lynch, A. J., B. J. E. Myers, J. Wong, C. Chu, J. A. Falke, T. J. Kwak, C. P. Paukert, R. W. Tingley, III, T. J. Krabbenhoft. May 2021. Examining Climate Change Impacts using the Fish and Climate Change Database (FiCli). Western Division American Fisheries Society Annual Meeting.	May 2021	We examine the effects of climate change on inland fishes using the Fish and Climate Chanage Database (FiCli).
Luo et al. (including A.D. McGuire). 2015. Representing soil carbon dynamics in global land models to improve future IPCC assessments. North American Carbon Program Meeting. Washington, DC.	January 2015	We held an international workshop in June 2014 with about 50 scientists from various areas of soil carbon research, including global model development, benchmark analysis, data assimilation, database development, and isotope and soil carbon measurement. The goal of the workshop was to exchange ideas on how to improve representation of soil carbon dynamics in global models. The workshop (1) evaluated current status of modeling SOC dynamics; (2) explored process understanding and modeling techniq
Lopez, J.A., Jalbert, C., Campbell, M., Falke, J., and P. Westley. 2020. Population Genetics of a Northern Pike Invasion. American Fisheries Society Virtual Meeting, 14-25 September, 2020.	September 2020	In Alaska, translocated Northern Pike (Esox lucius) have founded an abundant and widely distributed invasive metapopulation. We are studying contrasting patterns of genetic variability between the invasive and native populations that are candidate sources of the translocated founders.
Liang, J., M. Zhou, P. Tobin, and A.D. McGuire. 2013. Biodiversity increases individual productivity: Evidence and mechanism. Society of American Foresters 2013 National Convention, Charleston, South Carolina.	October 2013	Supported by empirical evidence, our theoretical model implies that maintaining a competitive equilibrium not only maintains crucial wildlife habitats and ecosystem productivity and resilience, but could also improve resource utilization and ecosystem productivity.
Li, Z., J. Xia, A. Ahlstrom, A. Rinke, C. Koven, D.J. Hayes, D. Ji, G. Zhang, G. Krinner, G. Chen, J. Dong, J. Liang, J.C. Moore, L. Jiang, L. Yan, P. Ciais, S. Peng, Y.-P. Wang, X. Xiao, Z. Shi, A.D. McGuire, and Y. Luo. 2017. Recent slowdown of atmospheric CO2 amplification due to vegetation-climate feedback over northern lands. Fall 2017 Meeting of the American Geophysical Union. Poster Presentation.	December 2017	Here, based on in-situ atmospheric CO2 concentration records above 50o N, we found a slowdown of the atmospheric CO2 amplitude increase from mid-1990s to mid-2000s. This phenomenon is associated with the paused vegetation greenness and slowdown of spring warming.
Lewis, B, and M.S. Wipfli. 2012. A review of lake fertilization as a fisheries enhancement tool in Alaska. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Leppi, JC, DJ Rinella, MS Wipfli, MS Whitman. 2019. Diverse foraging niches and habitat use by Broad Whitefish (Coregonus nasus) in Arctic Alaska. American Fisheries Society, Alaska Chapter.	September 2019	Work highlights some key life history behaviors and foraging strategies of a poorly understood but highly valued subsistence fish species in Arctic Alaska-- Broad Whitefish. Information gleaned from this work helps us better understand the basic ecology of this fish, helping guide management decisions in the face of expanding petroleum development and continued climate change in Arctic Alaska.
Leppi, JC, DJ Rinella, MS Wipfli, MS Whitman. 2019. Diverse foraging niches and habitat use by Broad Whitefish (Coregonus nasus) in Arctic Alaska. American Fisheries Society, Alaska Chapter.	March 2019	Work highlights some key life history behaviors and foraging strategies of a poorly understood but highly valued subsistence fish species in Arctic Alaska-- Broad Whitefish. Information gleaned from this work helps us better understand the basic ecology of this fish, helping guide management decisions in the face of expanding petroleum development and continued climate change in Arctic Alaska.
Leppi, J, M Wipfli, A Liljedahl, D Rinella, M Whitman. Potential Implications of Climate Change for Broad Whitefish (Coregonus nasus) in Arctic Alaska. Western Division of the American Fisheries Society, Anchorage, Alaska, May 2018.	May 2018	Project shows how climate change is expected to affect Broad Whitefish and their habitats in Arctic Alaska. Changes in spawning habitats and migration patterns are expected.
Latty,C. J., T. E. Hollmen, M. R. Petersen, A. N. Powell, and R. D. Andrews 2008. Biochemical and clinical responses of common eiders to implanted satellite transmitters. 11 November, 3rd North American Sea Duck Conference, Quebec City, Canada.	November 2008
Latty, C.J., T.E. Hollmen, M.R. Petersen, A.N. Powell, and R.D. Andrews. 2008. Abdominally implanted transmitters affect the dive performance of common eiders. 13th Alaska Bird Conference.	March 2008
Latty, C.J., T. E. Hollmen, M.R. Petersen, A.N. Powell, and R.D. Andrews. 2008. Abdominally implanted transmitters with percutaneous antenna affect dive performance of common eiders. Pacific Seabird Group.	February 2008
Latty, C. J., T.E. Hollmen, M. R. Petersen, A. N. Powell, and R. D. Andrews. 2008. Dive performance of common eiders implanted with satellite transmitters. 12 November, 3rd North American Sea Duck Conference, Quebec City, Canada.	November 2008
Latty, C. J., T. E. Hollmen, M. R. Petersen, A. N. Powell, and R. D. Andrews. 2006. Effects of implanted satellite transmitters on captive common eiders. 16 February, Poster, Pacific Seabird Group, Girdwood, AK.	February 2006
Latty, C. J., T. E. Hollmen, M. R. Petersen, A. N. Powell, and R. D. Andrews. 2006. Effects of implanted satellite transmitters on captive common eiders foraging at a depth of 4.5 m. 27 September, 13 th Annual Conference of The Wildlife Society, Anchorage, AK. Poster.	September 2006
Laske, SM, AE Rosenberger, MS Wipfli, CE Zimmerman. 2016. Hydrology and fish composition drives lentic food web structure in Arctic Alaska. Society for Freshwater Science, Sacramento, CA, May 21-26.	May 2016	This study examined how differences in surface water hydrology affect fish distribution and food web structure in 32 lentic water bodies at two locations over a range of local and regional surface water connectivity. Reduced fish species richness in isolated locations limited the number of trophic levels, seemingly due to exclusion of top fish predators. Preliminary analyses suggest that fish species assemblage and fish dietary habits influenced invertebrate assemblages. Fish distributional pat
Laske, S.M., M.S. Wipfli, A.E. Rosenberger, and C.E. Zimmerman. 2012. Fish and invertebrate assemblages in ponds and lakes on the Arctic Coastal Plain, Alaska. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Laske, S., A.E. Rosenberger, J.C. Koch, C.E. Zimmerman, and M.S. Wipfli. 2014. Feeding frenzy: Exploring the role of ninespine stickleback in Arctic freshwater food webs. Annual Meeting of the Society for Freshwater Science. Portland, OR. May, 2014.	May 2014	Presentation on potential role of fish presence on Arctic lake food webs.
Laske, S., A. Rosenberger, M.S. Wipfli, and C. Zimmerman. 2017. Surface water connectivity among Arctic lakes drives patterns of fish species richness and composition, and food web structure. American Water Resources Association Spring Specialty Conference 2017, April 30 – May 3, 2017, Snowbird, UT.	April 2017	Water connectivity among Arctic lakes drives patterns of fish species richness and composition and food web structure.
Laske, S. M., J. C. Koch, C. E. Zimmerman, M. S. Wipfli, and A. E. Rosenberger. Fish distribution in a warming Arctic: what current patterns may tell us about the future. Alaska Chapter of the American Fisheries Society Annual Meeting, Fairbanks, Oct. 2013.	October 2013	This work documents how, in a regional context, surface water connectivity contributes to fish species presence in North Slope lakes. This complements ongoing work in a landscape context.
Laske, S, T Haynes, A Rosenberger, J Koch, M Wipfli, M Whitman, C Zimmerman. 2015. Influence of surface water connectivity on fish species richness and assemblages on the Arctic Coastal Plain, Alaska. American Fisheries Society national meeting. Portland, OR.	August 2015	We examined how fish species richness and assemblages in Arctic lakes varied with surface water connectivity. We found strong relationships between lake and surface water connectivity characteristics and richness and assemblage patterns, where the same characteristics had greater influence in isolated lakes than in connected lakes.
Laske, S, A Rosenberger, W Kane, M Wipfli, C Zimmerman. 2015. Top-down effects of Ninespine Stickleback on invertebrate communities of small Arctic ponds: an experimental approach. AK AFS	November 2015	Shows how stickleback can influence invertebrate communities on the Arctic Coastal Plain. Drying from climate change will affect access of these and other fishes in freshwater habitats.
Laske, S, A Rosenberger, M Wipfli, C Zimmerman. 2017. Generalist feeding strategies of Arctic fishes stabilize lentic food webs. AK Chapter AFS-AWRA, Fairbanks, AK	March 2017	Study looked at how fish feeding strategies influence Arctic food webs. We found that feeding breadth was similar among fishes and that strategy appears to aid their survivorship and stabilize food webs.
Laske, S, A Rosenberger, M Wipfli, C Zimmerman. 2014. Feeding frenzy: Exploring the role of ninespine stickleback in Arctic freshwater food webs. Joint Aquatic Sciences Meeting. Portland, OR.	May 2014	Study reports on the role stickleback play in Arctic pond food webs.
Lara, M.J., P. Martin, and A.D. McGuire. 2016. Mapping polygonal tundra geomorphology across the Arctic Coastal Plain of Alaska. Eleventh International Conference on Permafrost. Potsdam, Germany. Poster Presentation.	June 2016	We use an object based image analysis, using LandSat 8–OLI satellite imagery and an array of ground based photography and field data to create the first polygonal tundra geomorphology map for the ACP of Alaska, at a spatial resolution of 30 x 30 meters. This fine-scale polygonal tundra geomorphology map, characterizes arctic patterned ground across large scales, which may enable higher resolution characterization of important processes and parameters that control ecosystem structure and functio
Lara, M.J., H. Genet, A.D. McGuire, E.S. Euskirchen, Y. Zhang, D.R.N. Brown, M.T. Jorgenson, V. Romanovsky, A. Breen, and W.R. Bolton. 2016. Thermokarst rates intensify due to climate change and forest fragmentation in an Alaskan boreal forest lowland. Eleventh International Conference on Permafrost. Potsdam, Germany. Oral Presentation.	June 2016	This study evaluates the trajectories and potential drivers of 60 years of forest change in a landscape subjected to permafrost thaw in unburned dominant forest types (paper birch and black spruce) associated with location on elevated permafrost plateau and across multiple time periods (1949, 1978, 1986, 1998 and 2009; Fig.1) using historical and contemporary aerial and satellite images for change detection. This work highlights that the vulnerability and resilience of lowland ice-rich permafro
Lara, M.J., H. Genet, A.D. McGuire, E.S. Euskirchen, Y. Zhang, D. Brown1, T. Jorgenson, V.E. Romanovksy, A.L. Breen, and W.R. Bolton. 2015. Thermokarst rates intensify due to climate change and forest fragmentation in an Alaskan Boreal Forest Lowland. Fall Meeting of the American Geophysical Union. Poster Presentation.	December 2015	This study evaluates the trajectories and potential drivers of 60 years of forest change in a landscape subjected to permafrost thaw in unburned dominant forest types (paper birch and black spruce) associated with location on elevated permafrost plateau and across multiple time periods (1949, 1978, 1986, 1998 and 2009) using historical and contemporary aerial and satellite images for change detection.
Lara, M.J., A.D. McGuire, E.S. Euskirchen, V.L. Sloan, C.M. Iversen, R.J. Norby, H. Genet, Y. Zhang, and F. Yuan. 2013. Modeled change in carbon balance between 1970-2100 of a polygonal arctic tundra ecosystem near Barrow, Alaska. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	In northern Alaska, nearly 65% of the terrestrial surface is composed of polygonal tundra, where microtopographic position (i.e. high center, low center, trough) varies surface hydrology, plant community composition, and biogeochemical cycling, over small (<5m) spatial scales.The polygonal tundra land cover classification found high center & rims to represent 37.5% of the study area, low centers 19.7%, troughs 9.9%, water bodies (i.e. lakes, ponds, rivers) 17.8%, and non-polygonal tundra (i.e.
Lara, M., A.D. McGuire, and E.S. Euskirchen. 2014. Centur time-scale implications for change in peak growing season carbon flux in ice wedge polygonal tundra on the Barrow, Peninsula. US – International Association of Landscape Ecologists Annual Symposium. Anchorage, Alaska. Invited.	May 2014	Results indicate that 100 years of landscape change in response to the Thaw Lake Cycle, will only slightly decrease peak season carbon uptake (-1.8 tonsC dayˉ¹), while a moderate increase (i.e. 30%) in thermokarst disturbance associated with transitions from LC to HC polygons increases the carbon sink capacity (+255.5 tonsC day ˉ¹) during the peak season.
Koven, C.D., E.A.G. Schuur, C. Schadel, T.J. Bohn, E.J. Burke, G. Chen, X. Chen, P. Ciais, G. Grosse, J.W. Harden, D.J. Hayes, G. Hugelius, E.E. Jafarov, G. Krinner, P. Kuhry, D.M. Lawrence, A.H. MacDougall, S.S. Marchenko, A.D. McGuire, S.M. Natali, D.J. Nicolsky, D. Olefeldt, S. Peng, V.E. Romanovsky, K.M. Schaefer, J. Strauss, C.C. Treat, and M. Turetsky. 2015. A simplified, data-constrained approach to estimate the permafrost carbon-climate feedback: The PCN Incubation-Panarctic Thermal (Pinc-PanTher) Scaling Approach. Fall Meeting of the American Geophysical Union. Oral Presentation.	December 2015	We present an approach to estimate the feedback from large-scale thawing of permafrost soils using a simplified, data-constrained model that combines three elements: soil carbon (C) maps and profiles to identify the distribution and type of C in permafrost soils; incubation experiments to quantify the rates of C lost after thaw; and models of soil thermal dynamics in response to climate warming.
Koven, C.D., D.M. Lawrence, A.D. McGuire, A.G. Slater, G. Hugelius, and N. Parazoo. 2016. Permafrost in earth system models: Recent progress and future challenges. Fall 2016 Meeting of the American Geophysical Union. Oral Presentation. Invited.	December 2016	Permafrost is a crucial component of the Earth system, representing a key intersection point of soil physical and carbon cycle dynamics, yet has been poorly represented in Earth system models. None of the ESMs of the CMIP5 generation included permafrost carbon dynamics, and many had poor representation of soil thermal dynamics. Subsequent to CMIP5, a number of key improvements have been made to address these shortcomings, including strategies for including permafrost carbon dynamics in models,
Kohler, A.E., T. Copeland, D.A. Vendetti, M. Wipfli, B. Lewis, L. Denny, and J. Gable. September 2011. Nutrient flux by chinook salmon in Idaho streams: The ins and outs, and implications for management. Annual meeting, American Fisheries Society, Seattle, WA.	September 2011
Koch, J, J Schmutz, K Gurney, S Laske, M Wipfli, T Fondell. 2014. The effect of ephemeral ponds, streams, and large lakes on nutrient fluxes, ecosystems and wildlife of the Arctic Coastal Plain of Alaska. Joint Aquatic Sciences Meeting. Portland, OR.	May 2014	Work showed how water body type affects water and nutrient flux on the Arctic Coastal Plain of Alaska
Knoche, M., L. Phillips, A. Powell, and L. Quakenbush. 2006. Isotopes, feathers, and transmitters, or what can be learned about waterbirds during nonbreeding by combining marking methods. Pacific Seabird Group, 17 February, Girdwood, AK.	February 2006
Knoche, M., A.N. Powell, P. Barboza, M. Wooller, and L. Quakenbush. 2005. New insights into the molt migration of female King Eiders from stable carbon and nitrogen isotope analyses. Annual Meeting, Pacific Seabird Group/Waterbird Society Meeting, 19-23 January, Portland, OR.	January 2005
Knoche, M., A.N. Powell, P. Barboza, M. Wooller, and L. Quakenbush. 2004. King Eider wing molt: inferences from stable isotope analyses. Annual Meeting, American Ornithologists Union, Quebec City, QC, Canada. 16-21 August 2004.	August 2004
Klobucar, S.L., Falke, J.A., Rupp, T.S., Bieniek, P.A., Genet, H., and M.A. Lindgren. 2019. Integrating at the interface(s): modeling the effects of fire and climate change to support management and conservation of fish habitat and populations in Alaskan boreal forests. Alaska Chapter of the American Fisheries Society Annual Meeting, Sitka, Alaska, 19 – 21 March, 2019.	March 2019	In light of current and expected climate change driven shifts of fire regimes across the boreal interior of Alaska (e.g., increased frequency and severity), understanding the future impacts of fire to these important processes is critical for managing aquatic habitats and fish populations, as well as fire itself. . In sum, this study will improve our ability to manage future fire and climate driven effects at the terrestrial-aquatic interface, serve as a template for management in other ecoregi
Klobucar, S.L., Falke, J.A., Rupp, T.S., Bieniek, P.A., Genet, H., and M.A. Lindgren. 2019. Fo’real changes in boreal streams: a multifaceted modeling approach to predict the effects of forest fire on aquatic habitat vulnerability in interior Alaska. 149th American Fisheries Society Annual Meeting, Reno, Nevada, 29 September – 3 October, 2019.	September 2019	In light of current and expected climate driven shifts of fire regimes (e.g., increased frequency, severity) across interior Alaska, understanding future impacts of fire to stream regulating biological, chemical, and physical processes are critical for managing fire, aquatic habitats, and fish populations. Our results will provide valuable insight for fire management decisions with respect to one of Alaska’s most valuable commercial, sport, and subsistence fish species.
Klobucar, S.L., Falke, J.A., Rupp, T.S., & Bieniek, P.A. 2021. Quantifying the spark before the fire: a modeling approach to predict future effects of forest fire on aquatic habitat availability and juvenile Chinook Salmon growth in interior Alaska. Western Division American Fisheries Society Annual Meeting [Virtual]. 11-13 May, 2021.	May 2021	Across a warmer and drier interior Alaska concomitant shifts in fire regimes (e.g., increased frequency, severity) are likely to alter stream-regulating biological, chemical, and physical processes, and understanding and predicting these effects will be important for the management and conservation of aquatic habitats and fish populations in the future. This predicted habitat expansion would be important to consider for fire management decisions (e.g., suppression) with respect to one of Alaska
Klobucar, S.L., Falke, J.A., Rupp, T.S., & Bieniek, P.A. 2021. Quantifying the spark before the fire: a modeling approach to predict future effects of forest fire on aquatic habitat availability and juvenile Chinook Salmon growth in interior Alaska. American Fisheries Society, Alaska Chapter, Annual Meeting. Held virtually, 22 – 25 March, 2021.	March 2021	Across a warmer and drier interior Alaska concomitant shifts in fire regimes (e.g., increased frequency, severity) are likely to alter stream-regulating biological, chemical, and physical processes, and understanding and predicting these effects will be important for the management and conservation of aquatic habitats and fish populations in the future. This predicted habitat expansion would be important to consider for fire management decisions (e.g., suppression) with respect to one of Alaska
Klobucar, S.L., Falke, J.A., Rupp, T.S., & Bieniek, P.A. 2020. Quantifying the spark before the fire: a modeling approach to predict future effects of forest fire on aquatic habitat availability and juvenile Chinook Salmon growth in interior Alaska. American Fisheries Society, Alaska Chapter, Annual Meeting. Fairbanks, Alaska, 23 – 26 March, 2020.	March 2020	Across a warmer and drier interior Alaska concomitant shifts in fire regimes (e.g., increased frequency, severity) are likely to alter stream-regulating biological, chemical, and physical processes, and understanding and predicting these effects will be important for the management and conservation of aquatic habitats and fish populations in the future. Our results suggest potential stream reaches where expansion of Chinook Salmon into thermally suitable spawning and rearing habitats could warr
Klobucar, S.L., Falke, J.A., Rupp, T.S., & Bieniek, P.A 2020. Playing with fire? Predicting wildland fire effects on thermal habitat and juvenile Chinook Salmon growth in interior Alaska riverscapes. Association for the Sciences of Limnology and Oceanography-Society of Freshwater Science Joint Meeting. Madison, WI, 7 – 12 June, 2020.	June 2020	With current and expected climate-driven shifts in Alaska fire regimes (e.g., increased frequency, severity), understanding future fire impacts on stream regulating processes are critical for managing fire, aquatic habitats, and fish populations .Our results indicate potential range expansion of salmon to stream reaches that become thermally suitable for spawning and rearing, an important consideration for fire management decisions regarding one of Alaska's most valuable commercial, sport, and
Klobucar, S., Falke, J., Rupp, S., Bieniek, P., Genet, H., Lindgren, M., Hinkle, E., and D. Klobucar. Aquatic ecosystem vulnerability to fire and climate change in Alaskan boreal forests. Strategic Environmental Research and Development Program Annual Symposium. 3-5 December, 2019. Washington, D.C.	December 2019	In light of current and expected climate change driven shifts of fire regimes across the boreal interior of Alaska (e.g., increased frequency and severity), understanding the future impacts of fire to these important processes is critical for managing aquatic habitats and fish populations, as well as fire itself. Our results will improve our ability to manage future fire and climate driven effects at the terrestrial-aquatic interface, serve as a template for management in other ecoregions, and
Klobucar, D.D., and J.A. Falke. 2019. Gaging the importance: hydrologic regime characterization for wildfire- impacted streams in changing boreal ecosystems. American Fisheries Society Annual Meeting, Reno, Nevada, 29 September – 3 October, 2019.	September 2019	Understanding how wildfire influences hydrologic patterns (e.g., timing, magnitude) in boreal streams is important for effective aquatic habitat and species management under a rapidly changing climate. Our hydrologic regime characterization will provide a benchmark with which to detect potential regime shifts that may result from continued climate warming and increased fire disturbance across the Northwest Boreal Ecosystem, and provide valuable information toward management and conservation of
Klobucar, D.D., and J.A. Falke. 2019. Gaging the importance: characterizing hydrologic regimes of headwater streams in changing boreal ecosystems. Alaska Chapter of the American Fisheries Society Annual Meeting, Sitka, Alaska, 19 – 21 March, 2019.	March 2019	Boreal stream ecosystems, which span much of Alaska and western Canada, are changing rapidly, and shifts will likely be reflected in stream flow dynamics (e.g., timing, magnitude, duration).We will assess the degree to which headwater boreal streams reflect mainstem hydrologic regimes by characterizing historic hydrologic regimes and provide a benchmark from which to detect potential hydrologic regime shifts in response to past and future disturbance (e.g., fire) and/or climate change.
Klapstein, S.J., M.R. Turetsky, A.D. McGuire, J.W. Harden, and J.M. Waddington. December 2011. Controls on ebullition and methane emissions in Alaskan peatlands experiencing permafrost thaw. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Kimbirauskas, R. K., R. W. Merritt, M. S. Wipfli, and P. E. Hennon. 2004. Macroinvertebrate community response to riparian red alder in forested headwaters of southeastern Alaska. North American Benthological Society annual meeting, Vancouver, Canada.	June 2004
Kilinc, M., J. Beringer, L. Hutley, N. Tapper, A.D. McGuire, K. Kurioka, S. Wood, and N. D'Argent. December 2008. Biophysical controls of carbon exchange in old growth Mountain Ash stands. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2008
Kicklighter, D.W., D.J. Hayes, J.W. McClelland, B.J. Peterson, A.D. McGuire, and J.M. Melillo. December 2010. Relative importance of multiple factors on terrestrial loading of DOC to Arctic river networks. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
Kicklighter, D., M. Webster, M. Sarofim, A. McGuire, J. Melillo, J. Reilly, R. Prinn, and H. Tian. July 2001. Potential responses of terrestrial carbon storage to increasing atmospheric CO2 concentration and variable climate: Sensitivity to changes in vegetation nitrogen concentration. International Geosphere-Biosphere Programme Global Change Open Science Conference, Amsterdam.	July 2001
Kicklighter, D. W., M. D. Webster, A. D. McGuire, H. Tian, J. M. Reilly, J. M. Melillo, and R. G. Prinn. December 2000. Potential responses of terrestrial net primary production and carbon storage to increasing atmospheric carbon dioxide concentration and variable climate: Sensitivity to changes in vegetation nitrogen concentration. American Geophysical Union Fall Meeting, San Francisco.	December 2000
Kicklighter, D. W., J. M. Melillo, R. G. Prinn, A. D. McGuire, B. S. Felzer, and Q. Zhuang. May 2006. Relative importance of multiple stresses on terrestrial carbon sequestration. Spring Meeting, American Geophysical Union, Baltimore, MD.	May 2006
Kicklighter, D. W., J. M. Melillo, R. G. Prinn, A. D. McGuire, B. S. Felzer, and Q. Zhuang. August 2006. Importance of DOC exports on estimates of terrestrial carbon sequestration. Ninety-first Annual Meeting, Ecological Society of America, Memphis, TN.	August 2006
Kicklighter, D. W., J. M. Melillo, R. G. Prinn, A. D. McGuire, B. S. Felzer, and Q. Zhuang. August 2005. Relative importance of multiple stresses on terrestrial carbon sequestration. Annual Meeting of the Ecological Society of America, Montreal, Canada.	August 2005
Kennedy, T.A., J.D. Muehlbauer, B.R. Deemer, C.B. Yackulic, M.A. Ford, C. Szydlo and A.N. Metcalfe. 2022. Experimental ‘Bug Flows’ increased algae production and insect diversity in the Colorado River, Grand Canyon. 16th Biennial Conference of Science & Management on the Colorado Plateau & Southwest Region, Flagstaff, Arizona, 12-15 September 2022.	September 2022	Presentation on results of Bug Flows Experiment conducted at Glen Canyon Dam on Colorado River, Arizona.
Kennedy, T.A., A. Metcalfe, B.R. Deemer, M. Ford, C. Szydlo, C. Yackulic and J. Muehlbauer. 2022. Update on the Bug Flow Experiment: background, monitoring, and new analyses. Glen Canyon Dam Adaptive Management Program Adaptive Management Working Group Meeting, Flagstaff, AZ, 17-18 August 2022.	August 2022	This presentation provides an update to Grand Canyon Colorado River stakeholders on the current state of knowledge about the Bug Flows Experiment. This experiment is ongoing, currently in its fourth year.
Kennedy, T.A. and J.D. Muehlbauer. 2022. Project F: Aquatic ecology and food base monitoring. Glen Canyon Dam Adaptive Management Program Annual Reporting Meeting, Virtual, 11-12 January 2022.	January 2022	This was a presentation at an annual stakeholder meeting. It describes the yearly activities of the USGS Grand Canyon Monitoring and Research Center aquatic ecology research group.
Kellyhouse, R. A., B. Griffith, D. C. Douglas, J. Dau, and G. Carroll. June 2001. Calving ground habitat selection: Teshekpuk Lake and Western Arctic Caribou Herds. Annual Meeting, American Society of Mammalogists, Missoula, MT.	June 2001
Kelly, R., H. Genet, A.D. McGuire, and F.S. Hu. 2013. Model simulations driven by paleo-forcing data reveal large and rapid responses of carbon storage to boreal fire-regime shifts. Annual Meeting of the Ecological Society of America, Minneapolis, Minnesota.	August 2013	This finding builds confidence in predictions made in the absence of information on the legacy of past burning. However, this result reflects that vegetation feedback dampened past fire-frequency variability in our study region. In ecosystems where such feedback is less prominent, pre-historic fire regimes likely have a greater impact on ecosystem carbon storage.
Kelly, R., H. Genet, A.D. McGuire, and F. Hu. 2013. Paleodata-model integration reveals uncertain boreal forest carbon balance due to rapid recent fire regime change. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	We collected 14 lake-sediment cores from the Yukon Flats, Alaska to elucidate patterns of long-term environmental change. We then converted fire-regime reconstructions from these data to input drivers for the Dynamic Organic Soils version of the Terrestrial Ecosystem Model (DOS-TEM). Combined with simulated paleoclimate from an Earth System Model and CO2 data from ice core analysis, these "paleo-forcing" data allowed us to model past changes in ecosystem C storage in our study area to (1) asses
Kasischke, E.S., S.J. Goetz, A.D. McGuire, and D.J. Hayes. December 2008. An overview of the role of disturbance in the terrestrial carbon budget. Fall Meeting of the American Geophysical Union, San Francisco, California. Invited.	December 2008
Kasischke, E.S., H.D. Alexander, K. Barrett, H. Genet, S.J. Goetz, J.W. Harden, E. Hoy, J.F. Johnstone, T. Jorgenson, E.S. Kane, M. Kavenskiy, M.C. Mack, A.D. McGuire, S.R. Mitchell, J.A. O’Donnell, and M. Turetsky. 2013. Challenges for understanding the combined impacts of climate change and the 2001-2010 fires on carbon cycling in Alaskan boreal forests. Meeting of the American Geophysical Union, San Francisco, California. Invited.	December 2013	Here, we will review recent research directed towards understanding how fire and climate interact to control carbon cycling in Alaska's boreal forest. Topics covered in this presentation will include: (a) recent changes to Alaska's fire regime; (b) factors controlling the burning of surface organic layers in Alaskan boreal forests; (c) factors controlling changes in permafrost following fire; (d) how variations in fire severity and changes in permafrost control patterns of tree seedling recruit
Kasischke, E.S., E.S. Kane, J.A. O’Donnell, N.L. Christensen, S.R. Mitchell, M.R. Turetsky, D.J. Hayes, E. Hoy, K.M. Barrett, A.D. McGuire, and F. Yuan. December 2011. Feedbacks between climate, fire severity, and differential permafrost degradation in Alaskan black spruce forests – implications for carbon cycling. Fall Meeting of the American Geophysical Union, San Francisco, CA. Invited.	December 2011
Kasischke, E., M. R. Turetsky, E. S. Kane, C. Treat, J. W. Harden, K. Manies, R. D. Ottmar, A. D. McGuire, and S. Yi. December 2007. Landscape and climate controls on fire severity in Alaskan black spruce forests. Fall Meeting of the American Geophysical Union, San Francisco, CA. Invited.	December 2007
Kasischke, E. S., M. R. Turetsky, A. D. McGuire, and N. H. French. December 2004. Variations in the fire regime in the North American boreal forest between 1990 and 2004 and their potential impacts on terrestrial carbon storage. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2004
Kasischke, E. S., M. R. Turetsky, A. D. McGuire, J. Harden, K. Manies, R. Ottmar, E. S. Kane, and N. H. F. French. May 2007. Recent changes in climate and the fire regime increase depth of burning of the surface organic layer in Alaskan black spruce forests. Sixth International Conference on Disturbance Dynamics in Boreal Forests, Fairbanks, AK.	May 2007
Kasischke, E. S., J. Allen, N. H. F. French, E. Hoy, R. Jandt, A. D. McGuire, K. A. Murphy, T. S. Rupp, M. R. Turetsky, and D. L. Verbyla. November 2006. Satellite assessment of fire severity in Alaska?s boreal forest. Third International Fire Congress, San Diego, CA.	November 2006
Kane, E., M. Turetsky, M. Waddington, J. Harden, and A.D. McGuire. May 2009. Seasonal ice and drainage controls over solute chemistry in a rich boreal fen: A field water table manipulation study in Interior Alaska. Spring Meeting of the American Geophysical Union, Toronto, Canada.	May 2009
Julius, S, J. West, B. Griffith, and J.M. Scott. August 2009. Adaptation for climate sensitive ecosystems: Synthesis and overview. Special Session 17 (Natural Resources and Climate Change:Effects and Adaptation) of 94th Ecological Society of America Annual Meeting, Albuquerque, NM.	August 2009
Joyce, L., A. McGuire, D. Coulson, J. Clein, T. Burnside, and J. Gentry. December 2004. Historical Land use modeling of agriculture and forestry. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2004
Joyce, L. A., D. P. Coulson, A. D. McGuire, R. Birdsey, and B. Smith. August 2002. Harvesting disturbances on forestland from 1600 to present. Annual Meeting, Ecological Society of America, Tucson, AZ.	August 2002
Joyce, L. A., D. Coulson, A. D. McGuire, and B. Smith. December 2001. U.S. timber harvest from 1750 to 1997. Fall Meeting, American Geophysical Union, San Francisco, CA.	December 2001
Joyce, L. A., A. D. McGuire, D. P. Coulson, J. Clein, and T. Burnside. September 2005. Historical changes in carbon storage of the eastern United States: Uncertainties associated with forest harvest and agricultural land use activities. Seventh International Carbon Dioxide Conference. Boulder, Colorado.	September 2005
Joy, P., M.S. Wipfli, C. Stricker, and W. Jones. 2012. Marine-nutrient assimilation in rearing coho and Chinook salmon in the Unalakleet River. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
Joy, P, W Jones, C Stricker, M Wipfli. 2015. Seasonal and landscape patterns of marine-nutrient assimilation in rearing juvenile Coho and Chinook salmon in western Alaska. AK AFS	November 2015	Work shows that marine nutrients from pink and chum salmon benefit other salmon species (coho and chinook), and that multispecies management of salmon may be a better approach than the traditional single species method.
Johnston, C.E., S.A. Ewing, R.K. Varner, J.W. Harden, M.R. Turetsky, and A.D. McGuire. 2012. Methane emission through diffusion and ebullition in thaw wetlands in interior Alaska. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	We argue that methane ebullition contributes most significantly to C loss in early stages of thaw and is related to saturation and warming of soils following permafrost thaw in northern peatlands.
Johnson, K.D., J.W. Harden, A.D. McGuire, J. Bockheim, M. Clark, J. O’Donnell, C. Ping, and E.A. Schuur. December 2010. Soil carbon storage in Alaska: Results from a new database and a multi-regional landscape approach to spatial distribution assessment. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
Johnson, K.D., J.W. Harden, A.D. McGuire, F. Yuan, and M. Clark. 2012. Permafrost degradation and organic layer thickening over a climate gradient in a discontinuous permafrost region. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	Our results indicate obvious consequences for the carbon cycle in this region under warming conditions where increased carbon storage in the organic layer may offset an unknown carbon loss in the mineral soil as permafrost thaws.
Johnson, K., D. Agarwal, J. Harden, A.D. McGuire, C. Swanston, and C. van Ingen. December 2009. The Alaska Soil Carbon Database: A powerful database for soil carbon synthesis and modeling. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2009
Jianyang Xia1*, A. David McGuire2, David Lawrence3, Eleanor Burke4, Xiaodong Chen5, Christine Delire6, Charles Koven7, Andrew MacDougall8, Shushi Peng9,10, Annette Rinke11, Kazuyuki Saito12, Wenxin Zhang13, Ramdane Alkama6, Theodore J. Bohn5, Philippe Ciais9, Bertrand Decharme6, Isabelle Gouttevin10,14, Tomohiro Hajima12, Duoying Ji11, Gerhard Krinner10, Dennis P. Lettenmaier5, Paul A. Miller13, John C. Moore11, Benjamin Smith13, Tetsuo Sueyoshi12, Zheng Shi1, Liming Yan15, Yiqi Luo1. Terrestrial ecosystem model performance for net primary productivity and its vulnerability to climate change in permafrost regions. AGU 2014 Fall Meeting.	December 2014	Here, we evaluated 10 terrestrial ecosystem models for their estimated net primary productivity (NPP) and its vulnerability to climate change in permafrost regions in the Northern Hemisphere. The results of this study indicate that the model predictability of C cycle in permafrost regions can be improved by better representation of those processes controlling the seasonal maximum GPP and the CUE as well as their sensitivity to climate change.
Jason R. Neuswanger, Nicholas F. Hughes, Mark S. Wipfli, and Amanda E. Rosenberger. The importance of drifting debris for drift-feeding juvenile Chinook salmon. Alaska Chapter American Fisheries Society meeting. Nov 2011.	November 2011
Jalbert, C., Falke, J., Westley, P., López, J.A., Dunker K., and A. Sepulveda. 2018. Assessing vulnerability of salmonids to invasion of Northern Pike in Southcentral Alaska. Western Division American Fisheries Society Annual Meeting, Anchorage, Alaska, 21-25 May, 2018	May 2018	Northern Pike (Esox lucius) were illegally introduced to the Matanuska-Susitna (MatSu) basin in Southcentral Alaska in the 1950’s and their populations continue to expand. Results of this work will increase our understanding of the ongoing Northern Pike invasion in the MatSu basin and provide managers with the tools necessary to rank and identify vulnerable locations throughout Southcentral Alaska.
Jalbert, C., Falke, J., Westley, P., López, J.A., Dunker K., and A. Sepulveda. 2018. Assessing vulnerability of salmonids to invasion of Northern Pike in Southcentral Alaska. American Fisheries Society Annual Meeting, Atlantic City, New Jersey, 19-23 August, 2018	August 2018	Management of ongoing invasions requires knowledge of the location and quality of available habitat across broad geographic ranges. Results of this work will increase our understanding of the ongoing Northern Pike invasion in the MatSu basin and provide managers with tools necessary to rank and identify vulnerable locations throughout Southcentral Alaska.
Jalbert, C., Falke, J., Westley, P., López, J A., K. Dunker and A. Sepulveda. 2017. Landscape genetic diversity of native and invasive Northern pike in Alaska. MatSu Science Symposium, Palmer, Alaska, 8-9 November, 2017	November 2017	Northern Pike (Esox lucius) were illegally introduced to the Matanuska-Susitna River (MatSu) basin in Southcentral Alaska in the 1950’s and their populations continue to expand. We will characterize genetic diversity from native and invasive ranges create Northern Pike habitat suitability models to better evaluate the vulnerability of juvenile salmonids within the MatSu basin.
Jalbert, C., Falke, J., Westley, P., López, A., Dunker, K., and A. Sepulveda. 2017. Landscape genetic diversity of native and invasive Northern pike in Alaska. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, Alaska, 19-23 March, 2017	March 2017	This project will be the first to investigate the genetic and environmental landscape among introduced populations of Northern Pike (Esox lucius) in southcentral Alaska. This study is expected to increase our understanding of Northern Pike genetics across their native and invasive ranges, as well as our understanding of the abundance and dispersal abilities of this invader.
Jain, A., X. Yang, H. Kheshgi, A.D. McGuire, and W.M. Post. December 2008. Nitrogen attenuation of terrestrial carbon cycle response to global environmental change. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2008
Jafarov, E.E., H. Genet, V.E. Romanovsky, A.D. McGuire, and S.S. Marchenko. 2012. The effects of forest fire on the frozen soil thermal state. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	Preliminary results indicate that recovery of the permafrost thermal state depends on the successional growth rate of the upper organic layer and on the amount of available soil moisture.
Iversen, C.M., V.L. Sloan, P. Sullivan, E.S. Euskirchen, A.D. McGuire, R.J. Norby, A.P. Walker, J. Warren, and S.D. Wullschleger. 2013. Leaves are just the tip of the iceberg: A review of plant roots in arctic Alaska. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	Our goal in this review is to synthesize the available literature on arctic roots, and also their treatment in models. Future research should focus on estimates of arctic root production and lifespan, across the diversity of tundra ecosystems that exist in the Arctic. Improved linkages between root traits and easily-measured aboveground traits will facilitate the representation of roots in large-scale land surface models, and advance our understanding of the contribution of roots to ecosystem C
Huntsman, B.M., Falke, J.A., Saveride, J., and K. Bennett. 2015. Density-dependent and -independent mechanisms influencing spawning habitat selection by Chinook Salmon (Oncorhynchus tshawytscha) in the Chena River basin, Alaska. Alaska Chapter American Fisheries Society Annual Meeting, Homer, Alaska, 4-6 November 2015	November 2015	For struggling populations, such as Chena River Chinook Salmon, distinguishing between the strength of density-dependent and -independent mechanisms along the riverscape would be useful for managers working to restore historic levels of salmon productivity. We found that that spawning habitat in both the core and periphery were actively defended by Chinook salmon, although there was strong evidence for ideal-free distribution as well.
Hugelius, G., A.D. McGuire, T.J. Bohn, E.J. Burke, S. Chadburn, G. Chen, X. Chen, D.J. Hayes, E.E. Jafarov, C.D. Koven, A.H. MacDougall, S. Peng, and K.M. Schaefer. 2016. Comparing permafrost soil carbon pools from coupled earth system models to empirically derived datasets. Eleventh International Conference on Permafrost. Potsdam, Germany. Oral Presentation.	June 2016	Here we compare the soil carbon pools generated by coupled spin-up runs of a suite of earth system models from the Permafrost Carbon Network model intercomparison (Koven et al., 2015; McGuire et al., in preparation) to the empirically based maps of soil carbon storage in the Northern Circumpolar Soil Carbon Database (NCSCD; Hugelius et al., 2014). These types of comparisons reveal interesting trends that can provide semi-quantitative relationships between soil forming processes and observed mod
Hoy, E., E.S. Kasischke, M.R. Turetsky, E.S. Kane, K.M. Barrett, and A.D. McGuire. December 2010. Drivers of vulnerability of carbon stocks to variations in the fire regime in Alaskan boreal forests. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2010
Hinzman, L. D., N. Bettez, W. R. Bolton, F. S. Chapin, M. B. Dyurgerov, C. L. Fastie, B. Griffith, R. D. Hollister, A. Hope, H. P. Huntington, A. M. Jensen, G. J. Jia, T. Jorgenson, D. L. Kane, D. R. Klein, G. Kofinas, A. H. Lynch, A. H. Lloyd, A. D. McGuire, F. E. Nelson, M. Nolan, W. C. Oechel, T. E. Osterkamp, C. H. Racine, V. E. Romanovsky, R. S. Stone, D. A. Stow, M. Sturm, C. E. Tweedie, G. L. Vourlitis, M. D. Walker, D. A. Walker, P. J. Webber, J. Welker, K. S. Winker, and K. Yoshikawa. December 2004. Evidence and implications of recent climate change in northern Alaska and other Arctic Regions. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2004
Hinzman, L. D., N. Bettez, F. S. Chapin, M. Dyurgerov, C. Fastie, D. B. Griffith, A. Hope, H. P. Huntington, A. Jensen, D. L. Kane, G. Kofinas, A. Lynch, A. Lloyd, A. D. McGuire, F. E. Nelson, T. Osterkamp, W. C. Oechel, C. Racine, V. E. Romanovsky, J. Schimel, D. Stow, M. Sturm, C. E. Tweedie, G. Vourlitis, M. Walker, P. J. Webber, J. Welker, K. Winker, and K. Yoshikawa. December 2002. Evidence and implications of recent climate change in terrestrial regions of the Arctic. Fall Meeting, American Geophysical Union, San Francisco, California.	December 2002
Hinkle, E.G., and J.A. Falke. 2019. Aquatic food web and community response to wildfire in interior Alaska boreal streams. American Fisheries Society and The Wildlife Society Joint Annual Conference, Reno, Nevada, 29 September to 3 October, 2019.	September 2019	Wildfires are the primary natural disturbance in boreal forest stream ecosystems and fire regimes are expected to continue to change owing to climate warming. Understanding how mass-abundance relationships and food web structure relate to variables associated with fire disturbance may promote a better understanding of how climate warming and fire interact to impact boreal stream ecosystem food webs and provide insight into community-wide responses to wildfire.
Hinkle, E.G., Strohm-Klobucar, D.D., and J.A. Falke. 2020. Aquatic food web and community response to wildfire in interior Alaska boreal streams. Alaska Chapter of the American Fisheries Society Annual Meeting. Fairbanks, Alaska. March, 2020.	March 2021	Wildfire is the primary natural disturbance in boreal forest stream ecosystems and fires are expected to continue to increase in duration and frequency owing to climate change. Knowledge of how aquatic community and food web structure relate to variables associated with fire disturbance may promote a better understanding of how climate change and fire interact to impact boreal stream ecosystems and provide insight into community-wide responses to wildfire.
Hinkle, E.G., Strohm-Klobucar, D.D., and J.A. Falke. 2020. Aquatic food web and community response to wildfire in interior Alaska boreal streams. Alaska Chapter of the American Fisheries Society Annual Meeting. Fairbanks, Alaska. March, 2020.	March 2020	Wildfire is the primary natural disturbance in boreal forest stream ecosystems and fires are expected to continue to increase in duration and frequency owing to climate change. Knowledge of how aquatic community and food web structure relate to variables associated with fire disturbance may promote a better understanding of how climate change and fire interact to impact boreal stream ecosystems and provide insight into community-wide responses to wildfire.
Hinkle, E.G., Strohm-Klobucar, D.D., and Falke, J.A. 2022. Stream habitat and assemblage response to wildfire in interior Alaska boreal streams. Oregon Chapter of the American Fisheries Society Virtual Meeting. 2-4 March 2022.	March 2022	Wildfire is the primary natural disturbance in boreal forest stream ecosystems and fires are expected to continue to increase in duration and frequency owing to climate change. Knowledge of how aquatic community and food web structure relate to variables associated with fire disturbance may promote a better understanding of how climate change and fire interact to impact boreal stream ecosystems and provide insight into community-wide responses to wildfire.
Hinkle, E.G., Strohm-Klobucar, D.D., and Falke, J.A. 2022. Stream habitat and assemblage response to wildfire in interior Alaska boreal streams. Alaska Chapter of the American Fisheries Society Virtual Meeting. March 2022.	February 2022	Wildfire is the primary natural disturbance in boreal forest stream ecosystems and fires are expected to continue to increase in duration and frequency owing to climate change. Knowledge of how aquatic community and food web structure relate to variables associated with fire disturbance may promote a better understanding of how climate change and fire interact to impact boreal stream ecosystems and provide insight into community-wide responses to wildfire.
Hinkle, E.G., Falke, J.A. 2022. The immediate and lasting effects of wildfire in subarctic streams. American Fisheries Society Annual Meeting, 21-27 August 2022, Spokane, WA.	August 2022	Wildfire is the primary natural disturbance in boreal forest stream ecosystems and fires are expected to continue to increase in duration and frequency owing to climate change. Knowledge of how aquatic communities relate to variables associated with fire disturbance may promote a better understanding of how climate change and fire interact to impact boreal stream ecosystems.
Hinkle, E., Wooller, M., Westley, P., Falke, J.A. 2023. Arctic Grayling (Thymallus arcticus) physiology and movement behavior across a fire-impacted boreal riverscape Alaska Chapter American Fisheries Society Conference. March 2023.	March 2023	We quantified movement patterns using fin ray-derived strontium isotope ratios (<sup>87</sup>Sr/<sup>86</sup>Sr) and measured physiological metrics for Arctic Grayling, a species that exhibit high lifelong site fidelity across a riverscape affected by wildfire in interior Alaska. The behavioral and physiological responses of fishes to wildfire may impart resilience to fire disturbance, which will be especially important in light of a fiery future in Alaska boreal aquatic ecosystems.
Hinkle E., and J. Falke. 2019. The effects of fire disturbance on stream fish community structure, site fidelity, life history, and genetic relatedness in boreal stream ecosystems. Alaska Chapter American Fisheries Society Annual Meeting, Sitka, Alaska, 19-21 March, 2019.	March 2019	Wildfires are the most prominent natural disturbance events throughout the boreal forest ecosystem, and their size, frequency, and intensity are expected to continue to increase throughout the next century owing to climate change. This research will enhance our understanding of the health of freshwater ecosystems, and provide land and fire managers a more comprehensive framework of how future wildfires will affect freshwater aquatic ecosystems.
Hewitt, R.E., H. Genet, D.L. Taylor, A.D. McGuire, and M.C. Mack. 2017. The role of deep nitrogen and dynamic rooting profiles on vegetation dynamics and productivity in response to permafrost thaw and climate change in Arctic tundra. Fall 2017 Meeting of the American Geophysical Union. New Orleans, Louisiana. Oral Presentation.	December 2017	The release of permafrost-derived nitrogen (N) has the potential to fertilize tundra vegetation, modulating plant competition, stimulating productivity, and offsetting carbon losses from thawing permafrost. Dynamic rooting, mycorrhizal interactions, and coupling of N availability and root N uptake have been identified as gaps in ecosystem models. As a first step towards understanding whether arctic plants can access deep permafrost-derived N, we characterized rooting profiles and quantified acq
Hewitt, R.E., D.L. Taylor, H. Genet, A.D. McGuire, and M.C. Mack. 2016. Deep nitrogen acquisition in warming permafrost soils: Contributions of belowground plant traits and fungal symbioses in the permafrost carbon feedback to climate. Fall Meeting of the American Geophysical Union, San Francisco, California. Oral Presentation.	December 2016	Plant acquisition of nitrogen (N) from thawing permafrost has the potential to play a critical role in the trajectory of future climate change. Our research provides a view belowground and mechanistic insight into plant responses to changing permafrost conditions as a first step towards understanding N regulation of the permafrost C feedback to climate.
Hermus, J.H., J.D. Muehlbauer, D.J. Rinella, V.R. von Biela, J.A. Falke. 2023. The effects of water temperature and heat stress on juvenile Chinook Oncorhynchus tshawytscha, and Coho Salmon Oncorhynchus kisutch growth in the Deshka River watershed. Mat-Su Salmon Science and Conservation Symposium, Palmer, Alaska, 13-14 November 2023.	November 2023	This presentation is an introduction to John Hermus’ master’s thesis. This project will analyze data from the Deshka River watershed, with the goal of understanding the effects of water temperature and heat stress on juvenile Chinook and Coho Salmon growth in the face of a changing climate.
Hepler, J., B. Griffith, J. Falke, J. Roach, J. Caikoski, and M. Cameron. 2019. Validating a GPS collar-based method to estimate calving locations and parturition rates in the Porcupine caribou herd. American Fisheries Society and The Wildlife Society Joint Annual Conference, Reno, Nevada, 29 September - 3 October, 2019.	September 2019	Recently developed methods based on minimum travel rates of GPS-collared caribou have shown promise for remotely monitoring calving, but these methods were developed for non-migratory rather than migratory caribou. Managers may use our results to implement a new tool for remote monitoring of migratory caribou parturition rates, calving locations and dates.
Heimann, M., I. C. Prentice, J. Foley, T. Hickler, D. W. Kicklighter, A. D. McGuire, J. M. Melillo, N. Ramankutty, and S. Sitch. December 2001. Carbon Cycle Model Linkage Project (CCMLP): Evaluating biogeochemical process models with atmospheric measurements and field experiments. Fall Meeting, American Geophysical Union, San Francisco, CA. Invited.	December 2001
Heim, KC, TE McMahon, JA Falke, MS Wipfli. 2018. Unexpected places: the use of temporary aquatic habitats by fish, implications for conservation, and research needs. American Fisheries Society Annual Meeting, Atlantic City, NJ.	August 2018	Work highlights the importance of intermittent aquatic habitats for fishes. Points out how fish use these habitats seasonally for feeding, dispersal, and spawning during parts of the year, emphasizing the need for conservation.
Heim, K.C., M.S. Wipfli, M.S. Whitman, N.D. Sather, and M.B. Loewen. 2012. Seasonal movement patterns of arctic grayling (Thymallus arcticus) in a small beaded stream on the Arctic Coastal Plain, Alaska. American Fisheries Society Alaska Chapter meeting, Kodiak, AK, 24-26 Oct.	October 2013
He, Y., Q. Zhuang, J.W. Harden, A.D. McGuire, Z. Fan, and Y. Liu. 2013. The implications of microbial and substrate limitation for the fates of carbon in different organic soil horizon types: A mechanistically based model analysis. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2013	In this study, we developed a multi-layer mechanistically based soil decomposition model framework for boreal forest ecosystems. A global sensitivity analysis was conducted to identify dominating biogeochemical processes and to highlight structural limitations was conducted. Our results indicates that substrate availability is likely to be a major constraint on soil decomposition in fibrous horizon (explains 50-60% of SOC pool size variation), while microbial activity exerts a predominant cont
Hayes, D.J., R. Vargas, S. Alin, R.T. Conant, L.R. Hutyra, A.R. Jacobson, W.A. Kurz, S. Liu, A.D. McGuire, B. Poulter, and C.W. Woodall. 2017. SOCCR-2, Chapter 2: A synthesis of the North American carbon budget. Fall 2017 Meeting of the American Geophysical Union. Poster Presentation.	December 2017	Here we present a synthesis of the North American carbon budget for the next report (SOCCR-2) based on updated inventory data and new research over the last decade. The North American continent— including its energy systems, land-base and coastal oceans—is very likely to have been a net source of carbon to the atmosphere over the 2004-2013 time period,
Hayes, D.J., R. Vargas, S. Alin, R.T. Conant, L.R. Hutyra, A.R. Jacobson, W.A. Kurz, S. Liu, A.D. McGuire, B. Poulter, and C.W. Woodall. 2016. The North American carbon budget past, present and future. Fall 2016 Meeting of the American Geophysical Union. Oral Presentation.	December 2016	The North American continent (NA) has been considered to be a significant net source of carbon to the atmosphere, with fossil fuel emissions from the U.S., Canada and Mexico far outpacing uptake on land, inland waters and adjacent coastal oceans. Here we present a synthesis of the NA carbon budget for the next report (SOCCR-2) based on updated inventory data and new research over the last decade.
Hayes, D.J., P. Kuhry, S. Goswami, G. Grosse, A.D. McGuire, and E.A.G. Schuur. 2016. The Permafrost Regionalization Map (PeRM): How well do observations, models and experiments represent the circumarctic-scale spatial variability in permafrost carbon vulnerability? Eleventh International Conference on Permafrost. Potsdam, Germany. Poster Presentation.	June 2016	We developed a geospatial data synthesis and analysis framework designed to represent and characterize the variability in permafrost carbon vulnerability across the northern high latitudes. Overall, this spatial data synthesis framework work provides a critical bridge between the abundant but disordered observational and experimental data collections and the development of higher-complexity process representation of the permafrost carbon feedback in geospatial modeling frameworks.
Hayes, D.J., J.B. Fisher, E.J. Stofferahn, C.R. Schwalm, D.N. Huntzinger, and A.D. McGuire. 2016. A model-data integration framework for NASA-ABoVE: The role of remote sensing in process-based model representation of Arctic ecosystem dynamics. 14th International Circumpolar Remote Sensing Symposium. Homer, Alaska.	September 2016	Here, we demonstrate the use of remote sensing to evaluate and improve model performance in simulating Arctic ecosystem dynamics, with a focus on identifying critical gaps in data and process representation.
Hayes, D.J., G. Chen, G. Stinson, W. Kurz, and A.D. McGuire. 2013. The role of disturbance in driving carbon dynamics across the North American Boreal Forest in recent decades. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	Here, we demonstrate results from an updated approach that integrates observational data and inventory-based information on disturbances with process-level representation of ecological dynamics using a terrestrial biogeochemistry model. The integrated approach allows for continental-scale diagnosis of the carbon sink within a simulation framework for attributing the impacts of fire and insect disturbances relative to the major driving forces, including climate, atmospheric chemistry, forest ma
Hayes, D.J., D.W. Kicklighter, A.D. McGuire, M. Chen, Q. Zhuang, J.M. Melillo, and S.D. Wullschleger. 2012. The impact of permafrost thaw on land-atmosphere greenhouse gas exchange in recent decades over the northern high latitudes. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	This represents a significant factor in the overall land-based greenhouse gas source of 640 MtCO2eq/yr, and an additional 6.8% contribution on top of the combined 7792 MtCO2eq/yr fossil fuel emissions from the eight Arctic nations over this time period.
Hayes, D.J., D.P. Turner, G. Stinson, Y Wei, T.O. West, B. deJong, A.D. McGuire, R. Cook, and W.M. Post III. August 2011. Towards better-constrained assessments of the carbon balance of North America in the 21st century: A comparison of recent model and inventory-based estimates. Annual Meeting, Ecological Society of America, Austin, TX.	August 2011
Hayes, D.J., D.P. Turner, G. Stinson, A.D. McGuire, Y. Wei, T.O. West, L.S. Heath, B.H. de Jong, B.G. McConkey, R. Birdsey, W.A. Kurz, A.R. Jacobson, D.N. Huntzinger, Y. Pan, W.M. Post, and R.B. Cook. December 2011. Reconciling estimates of the contemporary North American carbon balance among an inventory-based approach, terrestrial biosphere models, and atmospheric inversions. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Hayes, D.J., C.E. Smyth, G. Chen, W.A. Kurz, A.D. McGuire, and G. Stinson. 2015. Improving the assessment of the State of the Carbon Cycle in North America by integrating inventory- and process- based approaches: A case study for Canada. Fall Meeting of the American Geophysical Union. Poster Presentation.	December 2015	Here, we demonstrate results from an updated approach that integrates inventory-based information on management and disturbances with process-level representation of ecological dynamics using a terrestrial biogeochemistry model.
Hayes, D.J., A.D. McGuire, W.M. Post, L.S. Heath, W.A. Kurz, G. Stinson, M.M. Thornton, Y. Wei, T.O. West, and NACP Regional Synthesis Participants. December 2009. Towards better-constrained assessments of the carbon balance of North America in the 21st Century: A comparison of recent model and inventory-based estimates. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
Hayes, D.J., A.D. McGuire, D.W. Kicklighter, K.R. Gurney, T.J. Burnside, and J.M. Melillo. December 2009. Recent changes in the strength of the CO2 sink in boreal land regions. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2009
Hayes, D.J., A.D. McGuire, D.W. Kicklighter, K.R. Gurney, T.J. Burnside, and J.M. Melillo. December 2008. A recent shift in the carbon balance of high-latitude terrestrial ecosystems in response to changes in climate and disturbance regime. Fall Meeting of the American Geophysical Union, San Francisco, California.	December 2008
Hayes, D., G. Stinson, W. Kurz and A.D. McGuire. 2013. Multi-factor analysis of the forces driving carbon dynamics in the North American Boreal Forest over recent decades. 16th International Boreal Forest Research Association Conference, Edmonton, Alberta, Canada.	October 2013	Our results suggest that CO2 uptake by the region’s forests may not be as strong as estimated by atmospheric inverse models, or other process-based models that do not consider permafrost dynamics, fire impacts, and other important drivers of boreal forest carbon cycling in boreal forests. Such changes create positive feedbacks to the climate system that accelerate global warming, putting further pressure on emission reductions to achieve atmospheric stabilization targets.
Hayes, D., G. Chen, W. Kurz, G. Stinson, and A.D. McGuire. 2015. On the integration of inventory- and process- based approaches to determine Canada’s full forest carbon budget and the forces that drive it. North American Carbon Program Meeting. Washington, DC.	January 2015	Our results suggest that CO2 uptake by the region’s forests may not be as strong as estimated by atmospheric inverse approaches, or other process-based models that do not consider permafrost dynamics, fire and insect impacts, and other important drivers of carbon cycling in boreal forests. Such changes create positive feedbacks to the climate system that accelerate global warming, putting further pressure on emission reductions to achieve atmospheric stabilization targets.
Hayes, D., D. Kicklighter, A.D. McGuire, Q. Zhuang, J. Melillo, and S. Wullschleger. 2013. The impacts of permafrost thaw on land-atmosphere greenhouse gas exchange. Fourth North America Carbon Program All Investigators Meeting, Albuquerque, New Mexico.	February 2013	This net forcing represents a significant factor in the estimated 640 MtCO2eq/yr pan-arctic GHG source, and an additional 6.9% contribution on top of the combined 7792 MtCO2eq/yr fossil fuel emissions from the eight Arctic nations over this time period.
Hayes, D. J., A. D. McGuire, D. W. Kicklighter, and T. J. Burnside. March 2008. Effects of climate, natural disturbance, forest management, and land use on carbon dynamics in terrestrial ecosystems of northern Eurasia. First Workshop of the NEESPI Focus Research Center for Biogeochemical Cycles, Max-Planck Institute for Biogeochemistry, Jena, Germany. Invited.	March 2008
Harwood, C.M. and A. N. Powell. 2013. Breeding distribution of Whimbrels in Alaska. 5th Western Hemisphere Shorebird Conference, Santa Marta, Colombia.	September 2013	Little is known about the distribution of breeding shorebirds in Alaska's interior. We present preliminary data on the distribution of whimbrels in interior Alaska based on historical records and current surveys.
Harwood, C., and A. Powell. 2011. Breeding ecology of Whimbrels in interior Alaska. 4th Western Hemisphere Shorebird Group Meeting, Vancouver, B.C.	August 2011
Harwood, C. and A. N. Powell. 2012. Breeding ecology of Whimbrels in interior Alaska. 23 Oct, 15th Annual Alaska Bird Conference, Anchorage, AK.	October 2012
Harwood, C. M. and A. N. Powell. 2014. Nesting Whimbrels: The Rush to Flush. 16th Alaska Bird Conference, Juneau, AK.	December 2014	We evaluate whether Whimbrels select nest based on potential concealment from predators and ability to detect predators.
Harwood, C. M. and A. N. Powell. 2013. Breeding ecology of Whimbrels in Interior Alaska. Alaska Chapter of The Wildlife Society Conference, Fairbanks, AK.	April 2013	Little is known about any shorebird species nesting in Alaska's interior habitats. We present preliminary results of a study on breeding ecology of Whimbrels at Kanuti National Wildlife Refuge, Alaska.
Harings, M., Schoen, E., Hill, J., Falke, J., Matter, A., Savereide, J., McKenna, B., Ransbury, S., Keyse, M., and A. Lopez. 2022. Evaluating Environmental DNA as a Complementary Tool for Estimating Salmon Abundance in the Yukon River Basin. Alaska Chapter American Fisheries Society Annual Meeting, Virtual Meeting, 28 February - 4 March, 2022.	February 2022	Daily salmon abundance estimates guide critical in-season management decisions that impact subsistence fishing throughout the Yukon River Basin. The long-term vision of this project is to build capacity to support cost-effective monitoring of fish populations and enhance climate change resilience in salmon assessment throughout Alaska.
Harings, M., Schoen, E., Falke, J., Matter, A., Savereide, J., McKenna, B., Farnham, N., Hill, J., and A. Lopez. 2022. Using quantitative PCR to estimate chum salmon abundance using environmental DNA on the Chena River. Alaska Chapter American Fisheries Society Annual Meeting, 28-30 March, 2023. Fairbanks, AK.	March 2023	In recent years increased frequency of high streamflow events resulted in periodic gaps in salmon escapement estimates when increased water levels limited the ability to conduct visual counts or use sonar technology. We tested a complementary method to assess salmon abundance using concentrations of environmental DNA (eDNA) shed by salmon into the water using validated species-specific quantitative PCR assays.
Harden, J.W., M.R. Turetsky, M. Conlin, E. Kane, A.D. McGuire, and K.L. Manies. May 2009. The influence of seasonal thaw and water table dynamics on soil carbon and trace gas flux in an ecosystem grandient in Interior Alaska. Spring Meeting of the American Geophysical Union, Toronto, Canada.	May 2009
Harden, J.W., K.D. Johnson, C.R. Lawrence, K.L. Manies, A.D. McGuire, J.A. O’Donnell, and M.P. Waldrop. March 2010. Carbon in terrestrial landscapes: Is the past the key to the future? U.S. Geological Survey Global Change Conference, Denver, CO.	March 2010
Harden, J., M. Turetsky, J. Carrasco, K. Manies, A. D. McGuire, J. Neff, M. Pavich, N. Rosenbloom, S. Trumbore, and Q. Zhuang. July 2003. Towards understanding long-term terrestrial carbon: Mechanisms, modern tools, and modeling of soil systems. XVI INQUA Congress, Reno, Nevada.	July 2003
Harden, J., K. Manies, and A. D. McGuire. April 2006. Resilience of Alaskan boreal systems: The mechanistic role of soil temperature in fractal geometry of fire scars. Annual Meeting, European Geophysical Union, Vienna, Austria.	April 2006
Harden, J. W., A. D. McGuire, J. Neff, K. P. O'Neill, B. J. Stocks, and Q. Zhuang. November 2002. Soil carbon of northern latitudes and their potential for CO2 exchange. USDA Symposium on Natural Resource to Offset Greenhouse Gas Emissions, Raleigh, North Carolina. Invited.	November 2002
Harden, J. W. and A. D. McGuire. October-November 2000. The biogeochemistry of fire: Modeling and measuring the impact of fire on carbon, nutrients, and atmospheric emissions. Wildlife Fire Workshop, U.S. Geological Survey, Los Alamos, New Mexico.	November 2000
Gutierrez, L., M.S. Wipfli, N.F. Hughes, and E.C. Green. November 2009. Patterns of prey abundance for juvenile Chinook salmon in the Chena River, interior Alaska. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK. (AFS abstract)	November 2009
Grosse, G., J. Harden, M.R. Turetsky, A.D. McGuire, P. Camill, C. Tarnocai, S. Frolking, T. Schuur, T. Jorgenson, S. Marchenko, and V. Romanovsky. February 2011. Vulnerability of high latitude soil carbon in North America to disturbance. Third North American Carbon All-Investigators Meeting, New Orleans, LA.	February 2011
Grosse, G., A.B.K. Sannel, B. Abbott, C. Arp, P. Camill, J. O’Donnell, L. Farquharson, F. Günther, D. Hayes, B.M. Jones, M.T. Jorgenson, S. Kokelj, P. Kuhry, H. Lee, J. Lenz, A. Lewkowicz, L. Liu, A.D. McGuire, A. Morgenstern, I. Nitze, D. Olefeldt, A. Parsekian, V. Romanovsky, P. Roy-Léveillée, E.A.G. Schuur, M. Turetsky, K. Walter Anthony, and S. Wullschlaeger. 2016. A synthesis of thermokarst and thermo-erosion rates in northern permafrost regions. Fall 2016 Meeting of the American Geophysical Union. Oral Presentation. Invited.	December 2016	Here we present a comprehensive review synthesizing measured and modeled rates of thermokarst and thermo-erosion processes from the scientific literature and own observations across the northern Hemisphere permafrost regions.
Griffith, B., Szepanski, S., and L. G. Adams. 2011. Independence of overwinter weight change and fall condition for moose calves in Alaska. Poster presented at the annual meeting of The Wildlife Society, Hawaii, November 2011.	November 2011
Griffith, B., J.M. Scott, D. Ashe, and J. Baron. March 2010. Climate change adaptation options for public lands and resources. USGS Global Change Conference, Denver, CO.	March 2010
Griffith, B., J. Roach, and V. Patil. Lake shrinkage in Alaskan National Wildlife Refuges: Heterogeneity and implications. Paper presented ant the 2013 annual meeting of the Alaska Chapter of The Wildlife Society, 3 April 2013. Fairbanks, Alaska.	April 2013	This documents rates of lake drying in 8 National Wildlife Refuges in Alaska that ranged from +0.3 to -3.0%/year. Half of refuges may lose 35-77% of lake area within 50 years if current trends continue.
Griffith, B., J. Roach and A. N. Powell. 2016. Identifying Climate Change and Cross-seasonal Research Priorities for Waterfowl. in Symposium: Climate Change and Migratory Birds: Connecting Management Challenges to Research Programs. The Wildlife Society, Annual Meeting, Raleigh NC	October 2016	There is a need to prioritize climate related research topics to maximize research efficiency. This talk presents preliminary results from a survey of waterfowl researchers and managers that identifies the most important factors affecting waterfowl populations and the expected effects of climate on waterfowl, via these factors.
Griffith, B., J. P. Lawler, and D. Johnson. September 2006. Dall's sheep responses to military overflights in interior Alaska. Poster Session 35, The Wildlife Society 2006 Annual Meeting, Anchorage, AK.	September 2006
Griffith, B., D.C. Douglas, and N.G. Platonov. March 2010. Heterogeneity in habitat trends among circumpolar Rangifer herds. Paper presented at Special Session 3.4, Heterogeneity and Resilience of Human-Rangifer Systems: A Circumpolar Social-Ecological Synthesis. ARCSS, State of the Arctic, Miami, FL.	March 2010
Griffith, B., D. E. Russell, and G. P. Kofinas. February 2002. A continental system for barren-ground caribou habitat assessment. Alaska Oil and Gas Association North Slope Conference, Fairbanks, Alaska.	February 2002
Griffith, B., D. E. Russell, and G. Kofinas. April 2001. A continental system for barren-ground caribou habitat assessment. Ninth North American Caribou Workshop, Kuujjuaq, Canada.	April 2001
Griffith, B., D. C. Douglas, R. G. White, and D. E. Russell. September 2003. Climate, Fall Forage Availability, and Parturition in Barren Ground Caribou. 54th Arctic Science Conference, AAAS, Fairbanks, Alaska.	September 2003
Griffith, B., D. C. Douglas, R. G. White, and D. E. Russell. May 2004. Climate, fall forage availability, and parturition in barren-ground caribou. Tenth North American Caribou Workshop, Girdwood, Alaska.	May 2004
Griffith, B., D. C. Douglas, R. G. White, D. E. Russell, and P. A. McNeil. September 2004. Differential effects of summer and winter warming on caribou habitats: Population implications. Eleventh Annual Conference, The Wildlife Society, Calgary, Alberta, Canada.	September 2004
Griffith, B., C. Cuyler, R.G. White, L.G. Adams, D.E. Russell, D.C. Douglas, A. Gunn, and R.D. Cameron. February 2010. Implications of a greener north for Arctic caribou: Is trophic mismatch likely? Plenary Session, Alaska Chapter of The Wildlife Society Annual Meeting, Anchorage, AK.	February 2010
Griffith, B. and J.M. Scott. November 2008. Climate change adaptation options for U.S. National Wildlife Refuges. Session on Human Dimensions, Conservation Education, and Conservation Policy, The Wildlife Society 15th Annual Conference, Miami, FL.	November 2008
Griffith, B. and J.M. Scott. August 2009. Climate change adaptation options for public lands and resources. Organized Oral Session 6 (Climate Change Science in Conservation Planning) of 94th Ecological Society of America Annual Meeting, Albuquerque, NM.	August 2009
Griffith, B. and J. M. Scott. April 2008. Climate change and wildlife refuges: managing for resilience in the face of uncertainty. Invited presentation, Desert Managers Group Climate Change Symposium, 9 April 2008, Laughlin, NV.	April 2008
Griffith, B. September 2009. Careers in Natural Resources. Invited Panelist, University of Idaho 100th Year Celebration, College of Natural Resources, Moscow, ID.	September 2009
Griffith, B. October 2008. Linking climate, habitat and populations: Scale, uncertainty and mechanisms. WILDlife Potential Habitat ForeCASTing Framework (WILDCAST) Workshop, USGS and NPS, Fairbanks, AK. Invited.	October 2008
Griffith, B. October 2007. Climate warming effects on habitats and populations in Alaska: implications for ?Outside. Invited presentation, U.S. Fish and Wildlife Service Regional Biologists Meeting, 2 October 2007, Bethesda, MD.	October 2007
Griffith, B. November 2008. Herbivore trophic dynamics: Potential influences of climate warming. Workshop on Wildlife Responses to Environmental Arctic Change (WildREACH): Predicting Future Habitats of Arctic Alaska, USFWS, Fairbanks, AK. Invited.	November 2008
Griffith, B. November 2006. Heterogeneity in climate warming: Effects on fish, wildlife, and habitats. Alaska Chapter Annual Meeting, American Fisheries Society, Fairbanks, AK. Invited.	November 2006
Griffith, B. March 2011.Climate, large mammals and wetlands. USGS, Ecosystems Strategic Science Planning Team Symposium, Menlo Park, CA.	March 2011
Griffith, B. March 2011. Effects of climate change on the Yukon River Basin: Changes in water and implications for wildlife habitat, human subsistence, and climate regulation. Alaska Cooperative Fish and Wildlife Research Unit Coordinating Committee meeting, University of Alaska Fairbanks.	March 2011
Griffith, B. June 2007. Inconvenient answers: Experiences at the interface of biological research and public policy early in the 21st century. Seventy-seventh Annual Meeting, Cooper Ornithological Society, Moscow, ID.	June 2007
Griffith, B. June 2007. Climate induced biome shifts and their implications for management of trust species of the National Wildlife Refuge system. Seventy-seventh Annual Meeting, Cooper Ornithological Society, Moscow, ID.	June 2007
Griffith, B. January 2011. Yukon River Basin: Lake change and biodiversity. Yukon River Basin Investigators Meeting, Portland, OR.	January 2011
Griffith, B. January 2010. Caribou in the dynamic Arctic. “Why the Arctic Matters” Symposium, Western Oregon University, Monmouth, OR. Invited.	January 2010
Griffith, B. January 2009. Ungulate distributions in Arctic Alaska. Pilot Effort for Integrated Arctic Assessment Planning Meeting, USGS, Anchorage, AK.	January 2009
Griffith, B. January 2005. Application of remote sensing data to the assessment of circumpolar Rangifer habitats and populations. Charter Meeting, Circum-Arctic Rangifer Monitoring and Assessment Network, Vancouver, British Columbia, Canada.	January 2005
Griffith, B. February 2007. US Climate Change Science Program Synthesis and Assessment Product 4.4. Alaska Forum on the Environment, Anchorage, AK.	February 2007
Griffith, B. February 2007. US Climate Change Science Program Synthesis and Assessment Product 4.4. USFWS Climate Change Forum, Anchorage, AK.	February 2007
Griffith, B. December 2008. Panel Member – Session on Biodiversity in a Rapidly Changing Arctic. 9th National Conference on Science, Policy and the Environment. Washington, DC. Invited.	December 2008
Griffith, B. 2010. Heterogeneity in habitat trends among circumpolar Rangifer herds. 12th North American Caribou Workshop, Winnipeg, SK, Canada.	October 2010
Griffith, B. 2006. Heterogeneity in climate warming effects on wildlife habitats and populations. Invited plenary speaker, The Wildlife Society 2006 Annual Meeting, Anchorage, AK.	September 2006
Griffith, B. (Chair), V.J. Meretsky, and L.A. Maguire. 2013. Symposium: “A National Network for Wildlife Conservation: Challenges and Solutions.” 26th International Congress for Conservation Biology, Baltimore, MD. 24 July 2013.	July 2013	Publicized a discussion of a National Network for Wildlife Conservation proposed in Meretsky et al. 2012. Presented forum for various agencies and NGOs to document their experiences and answer questions.
Griffith, B. May 2007. Potential Implications of Lake Dynamics to Ecosystem Services. USGS Lake Dynamics Symposium, Anchorage, AK. Invited.	May 2007
Griffith, B. February 2011. Inconvenient answers: Experiences at the interface between biological research and public policy. Cooperative Research Units New Scientist Training Session, Reston, VA.	February 2011
Griffith, B. February 2007. Heterogeneity in climate warming: Effects on fish, wildlife and habitats. USFWS Climate Change Forum, Anchorage, AK. Invited.	February 2007
Gregovich, D.P, M.S. Wipfli, and B. Frenette. 2006. Landscape correlates of threespine stickleback (Gasterosteus aculeatus) presence in small Southeast Alaska lakes. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK, 14-16 November.	November 2006
Green-Markley, E.C., M.S. Wipfli, and K.M. Polivka. 2007. Do drifting invertebrates originating from fishless headwater streams affect downstream fish? American Fisheries Society Alaska Chapter annual meeting, Ketchikan, AK, 13-15 November.	November 2007
Green, E.C., M.T. Perry, J.R. Neuswanger, E.R. Benson, L. Gutierrez, M.S. Wipfli, N.F. Hughes, and M.J. Evenson. November 2009. The ecology of juvenile Chinook salmon in the Chena River, interior Alaska. American Fisheries Society Alaska Chapter annual meeting, Fairbanks, AK. (AFS abstract)	November 2009
Green, E.C., M.S. Wipfli, and K.M. Polivka. 2008. Ecological linkages between fishless headwaters and downstream fish communities. American Fisheries Society national meeting, Ottawa, Ontario, Canada, 18-21 August.	August 2008
Green, E.C., M.S. Wipfli, and K.M. Polivka. 2008. Do drifting invertebrates originating from fishless headwater streams affect downstream fish? North American Benthological Society, Salt Lake City, Utah, 26-29 May.	May 2008
Gray, S.T., A.D. McGuire, J.S. Littell, A.L. Breen, K. Timm, and T.S. Rupp. 2017. Balancing the demands of knowledge co-production and basic research for large projects in the North American Arctic. Arctic Summit Science Week 2017. Prague, Czech Republic. Oral Presentation.	April 2017	Numerous federal and state/provincial agencies embarked on a multi-year, multi-million dollar effort to develop the Integrated Ecosystem Model for Alaska and Northwest Canada (IEM). Given the complexity and level of stakeholder engagement involved in developing and implementing the IEM, this project offers a number a "lessons learned" with regards to project management.
Goswami, S., D.J. Hayes, P. Kuhry, G. Hugelius, C. Schaedel, D. Olefeldt, G. Grosse, G. Chen, A. Lewkowicz, V. Romanovsky, S. Zubrzycki, S. Gruber, J. Vonk, A.D. McGuire, and E.A.G. Schuur. 2013. A regionalization approach to study vulnerability of Pan-Arctic permafrost stock to climate change. Annual Meeting of the Ecological Society of America, Minneapolis, Minnesota.	August 2013	The PeRM will have many usages for the researchers within the RCN and beyond – including data synthesis, model-data integration and model benchmarking – to contribute to an improved understanding of the vulnerability of the permafrost carbon pool to climate change and the implications to the global carbon budget.
Goswami, S., D. Hayes, P. Kuhry, G. Hugelius, A.D. McGuire, and E. Schuur. 2013. The Permafrost Regionalization Map (PeRM) for studying the vulnerability of permafrost carbon. Fourth North America Carbon Program All Investigators Meeting, Albuquerque, New Mexico.	February 2013	The permafrost regionalization map (PeRM) is an international effort within the RCN that aims to identify and characterize the key environmental controls on carbon vulnerability among different geographic regions across the northern permafrost domain.
Germain, S., S. Crimmins, L. Parrett, and K. Kielland. 2023. It pays to be a fat cow: juvenile weight predicts age at primiparity in northwest Alaskan moose populations. North American Caribou Workshop and Arctic Ungulate Conference, Anchorage, AK.	May 2023	We evaluated the impacts of cow moose weight on future reproductive capacity in western Alaska
Genet, J., K.M. Barrett, J.F. Johnstone, A.D. McGuire, F. Yuan, E.S., Euskirchen, E.S. Kasischke, S.T. Rupp, and M.R. Turetsky. 2012. Modeling the effects of fire severity on soil organic horizons and forest composition in interior Alaska. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	The results of these simulations indicate that it is important for ecosystem models to represent vegetation succession in order to fully understand the consequences of changes in climate and disturbance regimes on boreal ecosystems.
Genet, H., Y. He, A.D. McGuire, Q. Zhuang, Z. Zhu, N. Pastick, B. Wylie, and K. Johnson. 2016. Quantifying the impact of permafrost dynamics on soil carbon accumulation in response to climate change and wildfire intensification in Alaska. Eleventh International Conference on Permafrost. Potsdam, Germany. Poster Presentation.	June 2016	To better understand the impact of permafrost freeze and thaw dynamics on the vulnerability of soil carbon stocks, we used a process-based ecosystem model, the Terrestrial Ecosystem Model (TEM). Overall, this analysis has implications for carbon mitigation strategies of land management agencies and illustrates the importance of accounting for permafrost dynamics and disturbance regimes in assessing responses of soil carbon in high latitude ecosystems.
Genet, H., M. Lara, W.R. Bolton, and A.D. McGuire. 2016. Modeling vulnerability to thermokarst disturbance and its consequences on regional land cover dynamics in boreal Alaska. Fall Meeting of the American Geophysical Union, San Francisco, California. Poster Presentation.	December 2016	Estimation of the magnitude and consequences of permafrost degradation in high latitude is one of the most urgent research challenges related to contemporary and future climate change. In addition to widespread vertical degradation, ice-rich permafrost can thaw laterally, often triggering abrupt subsidence of the ground surface called thermokarst. To better understand the vulnerability of the landscape to thermokarst disturbance in Alaska, we developed the Alaska Thermokarst Model (ATM), a stat
Genet, H., M. Lara, W.R. Bolton, A.D. McGuire, V. Romanovsky, and M. Turetsky. 2016. Modeling landscape vulnerability to thermokarst disturbance in boreal Alaska. Eleventh International Conference on Permafrost. Potsdam, Germany. Poster Presentation.	June 2016	To better understand the vulnerability of the landscape to thermokarst formation in boreal Alaska, we developed the Alaska Thermokarst Model (ATM), a state-and-transition model designed to simulate ecosystem transitions associated with thermokarst disturbance in Alaska and Northwestern Canada. This analysis has allowed us to assess the importance of thermokarst dynamics and landscape evolution associated with permafrost thaw in potentially vulnerable boreal forest regions during the 21st centur
Genet, H., K. Barrett, J. Johnstone, A.D. McGuire, F. Yuan, E. Euskirchen, E. Kasischke, S. Rupp, and M. Turetsky. 2013. Modeling the effects of changes in fire severity on soil organic horizons and forest composition in interior Alaska. Fourth North America Carbon Program All Investigators Meeting, Albuquerque, New Mexico.	February 2013	The results of these simulations indicate that it is important for ecosystem models to represent the influence of fire severity on post-fire vegetation succession in order to fully understand the consequences of changes in climate and disturbance regimes on boreal ecosystems.
Genet, H., A.D. McGuire, J.F. Johnstone, A.L. Breen, E.S. Euskirchen, M.C. Mack, A.M. Melvin, T.S. Rupp, E.A. Schuur, and F. Yuan. 2013. Modeling post-fire vegetation succession and its effect on permafrost vulnerability and carbon balance. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	In this study, we present the development of an ecosystem model that integrates post-fire succession with changes in the structure and function of organic soil horizons to better represent the relationship between fire severity and vegetation succession across the landscape. The model is then used to assess changes in the carbon balance at a 1km resolution, in response to changing fire regime across the landscape in Interior Alaska.
Genet H., Zhang Y., McGuire A.D., He Y., Johnson K., D’Amore D., Zhou X., Bennett A., Biles F., Bliss N., Breen A., Euskirchen E.S., Kurkowski T., Pastick N., Rupp S., Wylie B., Zhu Z., and Zhuang Q. 2015. The importance of permafrost thaw, fire and logging disturbances as driving factors of historical and projected carbon dynamics in Alaskan upland ecosystems. North American Carbon Program All Scientists Meeting. Washington, DC.	January 2015	Our simulations showed that the increase in plant productivity in response to warming in boreal and arctic regions is offset by soil carbon loss due to permafrost degradation and wildfire combustion during both historical and future simulations. Fire disturbances act as a catalyst accelerating permafrost degradation and associated soil carbon loss. In addition, our preliminary results for south coastal regions of Alaska indicate that logging of second growth forests could influence carbon dynam
Genet H., M. Lara, A.D. McGuire, R.W. Bolton, E.S. Euskirchen, and V. Romanovsky. 2017. Integrated evaluation of the vulnerability to thermokarst disturbance and its implications for the regional carbon balance in boreal Alaska. Fall 2017 Meeting of the American Geophysical Union. Oral Presentation. Invited.	December 2017	We observed a nonlinear loss of permafrost plateau forest associated with TK and driven by precipitation and forest fragmentation. The results of this analysis were integrated into the Alaska Thermokarst Model (ATM), a state-and-transition model that simulates land cover change associated with thermokarst disturbance.By 2100, the model predicts a mean decrease of 7.4% (sd 1.8%) in permafrost plateau forests associated with an increase in TK fens and bogs.
Genet H., K. Barrett, A.D. McGuire, E.S. Kasischke, M. Turetsky, S. Rupp, E.S. Euskirchen, and F.M. Yuan. 2013. Modeling the effects of fire severity on soil organic horizons and its effects on permafrost and vegetation composition in Interior Alaska. 16th International Boreal Forest Research Association Conference, Edmonton, Alberta, Canada.	October 2013	Factorial simulations in Interior Alaska were then conducted from 1901 to 2100, combining various scenarios of warming and fire intensification to evaluate the relative effects of warming and fire regime on boreal ecosystems. The results of these simulations indicate that it is important for ecosystem models to represent the influence of fire severity on post-fire permafrost stability and vegetation succession in order to fully understand the consequences of changes in climate and disturbance r
Genet H, McGuire AD, He Y, Johnson K, Wylie B, Pastick N, Zhuang Q, Zhu Z, and Zhang Y. 2015. Identifying the main drivers of soil carbon response to climate change in arctic and boreal Alaska. Fall Meeting of the American Geophysical Union. Poster Presentation.	December 2015	To better understand the main drivers of the vulnerability of soil carbon stocks to climate change in Alaska, we ran a process-based ecosystem model, the Terrestrial Ecosystem Model (TEM), which explicitly simulates interactions between the carbon cycle and permafrost dynamics, coupled with a disturbance model (the Alaska Frame Based Ecosystem Code, ALFRESCO) and a model of biogenic methane dynamics (MDM-TEM) to assess historical and projected soil carbon dynamics in Alaska, from 1950 to 2100,
Geiger, H.J., and M.S. Wipfli. 2008. Ratcheting down escapements: more realistic goals, marine derived nutrient effects, or artifact of the analysis procedure? American Fisheries Society Alaska Chapter annual meeting, Anchorage, AK, 27-30 October.	October 2008
Gates, R., S. Yezerinac, R. Lanctot, A. Powell, P. Tomkovich, and O. Valchuk. 2011. Differentiating sex and subspecies of Beringia Dunlin using morphometrics. 4th Western Hemisphere Shorebird Group Meeting, Vancouver, B.C.	August 2011
Gates, H. R., Lanctot, R. B., and A. N. Powell. 2010. Replacement clutch laying in an arctic-breeding shorebird in response to experimental removal. COS/AOU/SCO Joint Annual Meeting, San Diego, CA.	February 2010
Fraley, Kevin M., Falke, Jeffrey A., McIntosh, Angus R. 2017. Management and community ecology of trophy freshwater salmonids in New Zealand and Alaska: correlations and contrasts. 50th Anniversary Symposium of the Fisheries Society of the British Isles. July 3-7 2017. Exeter, UK.	July 2017	Sport fisheries for trophy freshwater salmonids, particularly rainbow trout and brown trout, are important multi-million USD industries in the tourism-driven economies of the South Island, New Zealand and Alaska, United States. Consequently, management of these fisheries is often a balancing act between conserving population health of the target species and promoting utilization by anglers.
Fraley, K.M., and J.A. Falke. 2014. Seasonal movements of Rainbow Trout (Oncorhynchus mykiss) in the Susitna River Basin, Southcentral Alaska. Alaska Chapter American Fisheries Society Annual Meeting, Juneau, Alaska, 21-24 October 2014.	October 2014	Anthropogenic development and climate change threaten fishes and their habitats, even in relatively pristine watersheds such as those in Alaska thus a better understanding of seasonal movements across multiple spatial scales will assist managers in monitoring, protecting, and rehabilitating native fish populations. Results of this work could be applied to trout populations found in similar drainages in Alaska to identify critical habitats and movement corridors, which will be useful for priori
Fraley, K.M., Falke, J.A., Yanusz, R. and S. Ivey. 2015. Seasonal movements of Rainbow Trout (Oncorhynchus mykiss) in the Susitna River Basin, Southcentral Alaska. American Fisheries Society Annual Meeting, Portland, OR. 17-20 August 2015.	August 2015	Anthropogenic development and climate change threaten fishes and their habitats, even in relatively pristine watersheds such as those in Alaska thus a better understanding of seasonal movements across multiple spatial scales will assist managers in monitoring, protecting, and rehabilitating native fish populations. Results of this work could be applied to trout populations found in similar drainages in Alaska to identify critical habitats and movement corridors, which will be useful for priori
Fraley, K. M., Lunde, M. J., Bailey, L. T., Falke, J. A., and A. D. Gryska. 2013. Bioelectrical impedance analysis as a measure of energy density in arctic grayling (Thymallus arcticus). Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, AK, 7-11 October 2013.	October 2013	This study will develop bioelectrical impedance analysis models for arctic grayling. Once parameterized these models will allow biologists to estimate condition in this species non-lethally.
Fitzgerald, K., R. Bellmore, J. Fellman, C. Delbecq, and J. Falke. 2023. Stream hydrology and a salmon pulse subsidy shape juvenile salmonid foraging patterns in a southeast Alaska watershed. Meeting of the Alaska Chapter of the American Fisheries Society. 27 – 31 March, 2023, Fairbanks, AK, USA.	March 2023	Consumers capacity to exploit pulse subsidy resources may be influenced by antecedent environmental conditions such as stream flow. For juveniles of two salmonid species, we observed that consumption optima coincided with baseflow and high flow conditions, minima were observed during severe low-water and intermediate flow values, and interannual hydrologic variation shifted growth trajectories among years, potentially impacting access to pulse subsidies.
Fitzgerald, K., Delbecq, C., Fellman, J., Bellmore, R., and J. Falke. 2022. Understanding Impacts of Hydrologic Variability on Juvenile Salmon Growth in SE AK Watersheds. American Fisheries Society Annual Meeting. 21- 25 August, 2022, Spokane, WA, USA.	August 2022	Climate change is altering hydrologic regimes in watersheds of Southeast Alaska, which together support one of the most productive salmon populations on Earth, and it is expected that these coastal drainages will experience more severe low water events interspersed with larger, more frequent high flows. Our results will help parse out complex relationships among stream flows, prey fluxes, and fish growth, thus improving understanding of how shifting flow regimes may impact salmon productivity.
Fitzgerald, K., Delbecq, C., Fellman, J., Bellmore, R., and J. Falke. 2021. Understanding Impacts of Hydrologic Variability on Juvenile Salmon Growth in The Coastal Gulf of Alaska. Joint Aquatic Sciences Meeting 2022. 14 – 20 May, 2022, Grand Rapids, MI, USA.	May 2022	Climate change is altering hydrologic regimes in Gulf of Alaska watersheds and it is expected that these coastal drainages will experience more severe low water events interspersed with larger, more frequent high flows. Our results will help parse out complex relationships among stream flows, prey fluxes, and fish growth, thus helping understand how shifting flow regimes may impact salmon productivity in the region.
Fitzgerald, K., Delbecq, C., Fellman, J., Bellmore, R., and J. Falke. 2021. Understanding Impacts of Hydrologic Variability on Juvenile Salmon Growth in The Coastal Gulf of Alaska. Alaska Chapter American Fisheries Society Annual Meeting [Virtual], 28 February -4 March 2022.	February 2022	Climate change is altering hydrologic regimes in Gulf of Alaska watersheds and it is expected that these coastal drainages will experience more severe low water events interspersed with larger, more frequent high flows. Our results will help parse out complex relationships among stream flows, prey fluxes, and fish growth, thus helping understand how shifting flow regimes may impact salmon productivity in the region.
Fitzgerald, K., Delbecq, C., Fellman, J., Bellmore, R., and J. Falke. 2021. Understanding Impacts of Hydrologic Variability on Juvenile Salmon Growth for a Shifting Climate in Southeast Alaska. Ocean Sciences Meeting 2022. 27 February – 4 March, 2022, Honolulu, HI, USA.	February 2022	The goal of this research is to investigate how hydrologic patterns influence material fluxes, and in turn, the proportion of juvenile coho salmon and dolly varden growth attributed to periods of high and low flow. Our findings will help parse out complex relationships among stream flows, material fluxes, and fish growth, thus improving our understanding of how shifting flow regimes may impact salmon productivity in the region.
Fitzgerald, K., Delbecq, C., Fellman, J., Bellmore, R., and J. Falke. 2021. Implications of a changing flow paradigm on juvenile salmon growth in Southeast Alaska. American Fisheries Society Annual Meeting, Baltimore, MD. 6-10 November, 2021.	November 2021	Climate change is altering hydrologic regimes of coastal watersheds that drain into the Gulf of Alaska (GOA), and it is expected that these coastal drainages will experience more dramatic low water events, interspersed with larger and potentially more frequent high flow events. Our research will help parse out the complex relationship between streamflow patterns and juvenile salmon growth, and improve our understanding of the impacts of climate change on salmon productivity in GOA drainages.
Fitzgerald, K., Delbecq, C., Fellman, J., Bellmore, R., and J. Falke. 2021. Implications of a changing flow paradigm on juvenile salmon growth in Southeast Alaska. Alaska Chapter American Fisheries Society Annual Meeting [virtual]. 23-25 March, 2021.	March 2021	Climate change is altering hydrologic regimes in the Gulf of Alaska (GOA) region. It is expected that coastal drainages will experience more dramatic low water events interspersed with larger and potentially more frequent high flows. Results of this research will help parse out the complex relationships among stream flows, material fluxes, and juvenile salmon growth, with an ultimate goal to aid future research and management actions and navigate climate change impacts in important GOA drainage
Fellman, J., Bellmore, R., Falke, J., Weigner, T., and S. Colbert. 2022. An Integrated Framework to Understand Linkages Across Icefield-To-Ocean and Ridge-To-Reef Ecosystems. Ocean Sciences Meeting 2022. 27 February – 4 March, 2022, Honolulu, HI, USA.	February 2022	Nearshore marine ecosystems in Southeast Alaska and Hawai'i are thought to rely heavily on organic matter and nutrients (i.e., materials) delivered by rivers, and declining food resources associated with altered icefield-to-ocean and ridge-to-reef linkages or the looming threats of climate and/or land use change on these food resources have led to an increased interest in the management of watersheds and their linked coastal ecosystems. This integrative framework would allow for sustainable man
Farquharson, L.M., G. Grosse, V.E. Romanovksy, B.M. Jones, C.D. Arp, and A.D. McGuire. 2013. Spatial distribution of thermokarst landforms across arctic Alaska. Meeting of the American Geophysical Union, San Francisco, California.	December 2013	We conducted thermokarst landform mapping and spatial and morphometric analyses using high-resolution aerial photography, an interferometric synthetic aperture radar derived digital elevation model (IfSAR DEM), and hydrographic layers from the National Land Cover Database derived from Landsat-7. Our preliminary data show that thermokarst landform distribution, the extent of thermokarst activity and the depth of maximum subsidence vary across Arctic Alaska and that surficial geology is an import
Fan, Z., A.D. McGuire, J.W. Harden, and M.R. Turetsky. December 2011. Modeling the production and transport of methane in an Alaska rich fen peatland. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Falke, J.A., and L.T. Bailey. 2015. Development and calibration of bioelectric impedance analysis as a measure of energetic status of Arctic grayling (Thymallus arcticus). American Fisheries Society Annual Meeting, Portland, OR. 17-20 August 2015.	August 2015	This study used bioelectrical impedance analysis (BIA) to characterize the energetic status of Arctic grayling (Thymallus arcticus), and provide researchers a non-lethal method of accurately assessing condition. The BIA approach shows promise as a rapid, precise, and non-lethal measurement of energy density.
Falke, J.A., Torgersen, C.E., and J.K. Walter. 2013. Predicting the distribution of fish in headwaters: a test of the efficacy of spatial stream network models in capturing fish abundance variability across multiple spatial scales. 23rd Annual Conference of The International Environmetrics Society, Anchorage, AK, 10-14 June 2013.	June 2013	This study tests the efficacy of spatial stream network models for predicting fish abundance in headwater streams. The results will be useful for managers to identify biological hotspots and improve survey designs.
Falke, J.A., Sergeant, C.J., and J.R. Bellmore. 2020. Ecological drought and implications for salmon and riverine habitats in Alaska. Alaska Chapter American Fisheries Society Annual Meeting. Fairbanks, Alaska, 23-26 March, 2020.	March 2020	Ecological drought is defined as significant episodic shortages of water availability that can influence individual ecosystem services (such as salmon productivity), shift overall ecosystem states, and trigger socio-ecological feedbacks. Information on drought impacts could be used toward development of an integrated drought monitoring framework and vulnerability assessment for Alaska riverscapes, with application toward prediction of drought impacts under future climate conditions.
Falke, J.A., Sergeant, C.J., Bellmore, J.R., and R.A. Bellmore. 2020. Ecological drought and implications for salmon and riverine habitats in Southeast Alaska. ASLO-SFS Joint Summer Meeting, Madison, Wisconsin, 7-12 June, 2020.	June 2020	Ecological drought is defined as significant episodic shortages of water availability that can influence individual ecosystem services (such as salmon productivity) and shift overall ecosystem states. Here we, 1) synthesize and place in context recent drought conditions across Southeast Alaska, 2) quantify the hydrologic effects of recent drought on river flow regimes, and 3) use a recently-developed community life cycle model with a user-friendly interface to investigate the impacts of drought
Falke, J.A., Perkin, J.S., Gido, K.B., Crockett, H.J., Sanderson, J.S., Johnson, E.R., and K.D. Fausch. Groundwater depletion in Western Great Plains projected to dry 250 stream-km of fish habitat in the next 45 years. American Fisheries Society Annual Meeting, Portland, OR. 17-20. August 2015.	August 2015	Across the western Great Plains of North America, groundwater pumping for irrigated agriculture has depleted regional aquifers that sustain surface flow for native fishes.We synthesize the ecological consequences of past and expected future changes in surface flow using existing fish assemblage data collected from across the region.
Falke, J.A., Perkin, J.S., Gido, K.B., Crockett, H.J., Sanderson, J.S., Johnson, E.R., and K.D. Fausch. 2021. Groundwater declines are linked to changes in Great Plains stream fish assemblages. Western Division American Fisheries Society Annual Meeting [Virtual]. 11-13 May, 2021.	May 2021	Across the western Great Plains of North America, groundwater pumping for irrigated agriculture has depleted regional aquifers that sustain surface flow for native fishes. We synthesize the ecological consequences of past and expected future changes in surface flow using existing fish assemblage data collected from across the region, and provide an update on the current status of groundwater management for stream fish habitat in the Great Plains.
Falke, J.A., Martin, A. N., and B. M. Huntsman. 2014. Chena River basin juvenile Chinook salmon and physical habitat studies (2013-2016). Yukon Basin Interagency Fisheries Meeting. April 18, 2014. Fairbanks, AK.	April 2014	A summary of ongoing and future work in my lab on juvenile Chinook salmon habitat and ecology in the Chena River basin, interior Alaska.
Falke, J.A., Huntsman, B.M., and E.R. Schoen. 2018. Growth potential of juvenile Chinook Salmon (Oncorhynchus tshawytscha) across a boreal riverscape. American Fisheries Society Annual Meeting, Atlantic City, New Jersey, August 20-24, 2018.	August 2018	Recent downturns in Chinook salmon returns across Alaska have led to strong interest in how climate variability and anthropogenic pressures influence freshwater rearing conditions of this important species. A riverscape-scale perspective of how freshwater growth conditions are mediated by climate will be critical for conservation and management of Alaskan Chinook salmon stocks under a warmer and more variable climate.
Falke, J.A., Huntsman, B.M., and A.N. Martin. 2016. The Role of Geomorphic and Hydrologic Processes in Structuring Spawning and Rearing Habitats for Chinook Salmon in a Boreal Stream Network. American Fisheries Society Annual Meeting, Kansas City, MO, 22-26 August 2016.	August 2016	For our recent work in the Chena River basin, interior Alaska, we used field-based investigations and a suite spatially-explicit models to assess Chinook Salmon spawning and rearing habitat quality and dynamics. Knowledge of the distribution, amount, and relative importance of habitat features within freshwater networks gained by studies such as ours will be critical for conservation and management of Alaskan Chinook Salmon stocks under a warmer and more variable climate.
Falke, J.A., Huntsman, B.M., Schoen, E.R., and K.E. Bennett. 2016. Growth potential of juvenile Chinook Salmon (Oncorhynchus tshawytscha) across a boreal riverscape. Alaska Chapter of the American Fisheries Society Annual Meeting, Fairbanks, AK, 20-24 March 2017.	March 2017	We used field-based investigations and spatially-explicit flow and stream temperature models to assess juvenile Chinook Salmon growth potential across the Chena River basin, Alaska. We found that climate variability is clearly an important driver of freshwater habitat conditions, and has a large role in controlling freshwater growth of juvenile salmon in this system.
Falke, J.A., Flitcroft, R.M., Dunham, J.B., McNyset, K.M., Hessburg, P.H., and G.H. Reeves. 2014. Climate change and vulnerability of bull trout in a fire-prone landscape. 144th Annual Meeting, American Fisheries Society, Quebec City, Quebec, Canada, 17-21 August 2014.	August 2014	We used a Bayesian network (BN) approach to evaluate population vulnerability of bull trout (Salvelinus confluentus) in the Wenatchee River basin, Washington, USA under current and future climate and fire scenarios. We found that bull trout population vulnerability depended on the extent to which climate effects can be offset by management, how other factors such as habitat connectivity and fire size can be managed or mitigated, and the magnitude of climate change itself and that local manageme
Falke, J.A., Flitcroft, R.L., Dunham, J.B., McNyset, K.M., Hessburg, P.F., and G.H. Reeves. 2014. Fish, forests, and fire: vulnerability analysis for threatened salmonids under a changing climate. Alaska Chapter American Fisheries Society Annual Meeting, Juneau, Alaska, 21-24 October 2014.	October 2014	Linked atmospheric and wildfire changes will complicate future management of native coldwater fishes in fire-prone landscapes and new approaches to management that incorporate uncertainty are needed to address this challenge. Overall, our Bayesian network offered a powerful approach to identify areas where forest management has the greatest potential to effect population-scale resilience of threatened salmonids in fire-prone ecosystems.
Falke, J.A., Dunham, J.B., Hockman-Wert, D., and R. Pahl. 2014. Integrating models of species distributions, physiological thresholds, and physical potential to diagnose temperature impairment in Great Basin streams. Joint Aquatic Sciences Meeting, Portland, OR, 19-23 May 2014.	May 2014	This study provides a framework for evaluating thermal impairment of streams for coldwater fishes based on a weight of evidence approach. The results will assist managers and planners to diagnose impairment efficiently across broad, heterogeneous stream networks.
Falke, J.A., Cathcart, C.N., Fox, J., Henzsey, R., and K. Lininger. 2019. Longitudinal patterns of logjams and occupancy by juvenile Chinook Salmon along a sub-Arctic boreal riverscape. American Fisheries Society Annual Meeting, Reno, Nevada, 29 September – 3 October, 2019.	September 2019	Large in-stream wood accumulations (i.e., logjams) are thought to provide critical rearing and refuge habitat for juvenile Chinook Salmon in sub-Arctic boreal rivers. However, the distribution and abundance of logjams along the riverscape and relationships between logjam characteristics and habitat use are poorly understood.
Falke, J.A., Benda, L., and F. J. Adams. 2013. Chena River basin landscape-scale freshwater physical habitat studies. Alaska Chapter American Fisheries Society Annual Meeting, Fairbanks, AK, 7-11 October 2013.	October 2013	A poster to highlight upcoming digital landscape and thermal regime modeling to be conducted in the Chena River basin, AK. Results of the study will assist managers with evaluating salmon habitat quality.
Falke, J.A. 2022. The Fifth National Climate Assessment: Opportunities for participation and engagement by the Alaska fisheries community. Alaska Chapter American Fisheries Society Annual Meeting [Virtual], 28 February -4 March 2022.	February 2022	The Fifth National Climate Assessment (NCA5), currently in development, will assess the science of climate change and its impacts across the United States and document climate change-related impacts and responses for various sectors and regions, with the goal of better informing public and private decision-making at all levels. I will highlight opportunities and resources for the Alaska fisheries community to engage with and provide input to the NCA5 Alaska Chapter.
Falke, J.A. 2021. Bayesian networks to assess vulnerability of salmonids to climate change and wildfire in Washington and Alaska. Association for Fire Ecology 9^th International Fire and Ecology Congress. 30 Nov – 4 Dec 2021 [Virtual].	November 2021	A useful approach to evaluate climate and fire scenarios in the face of incomplete information are Bayesian networks (BNs), decision-tools that allow for integration of disparate information sources and prediction of outcomes based on multiple scenarios. Our results will improve our ability to manage future fire and climate driven effects at the terrestrial-aquatic interface, serve as a template for management in other ecoregions, and identify habitat critical for the conservation of important
Falke, J., Sparks, M., Torvinen, E., and P. Westley. 2017. Climate vulnerability and salmonids in Alaska: hind- and forecasting freshwater growth and phenology across species and habitats. Western Division American Fisheries Society Annual Meeting, Missoula, Montana, 23-25 May, 2017.	May 2017	We present a synthesis of three recent studies that hind- and forecast salmonid population responses across a broad range of climate and habitat conditions in Alaska. The complexity of responses we observed to climate variability and change highlights the importance of incorporating life-stage- species-, and habitat-specific information into broad-scale vulnerability assessments.
Falke, J., S. Rupp, and H. Genet. 2022. Does riparian vegetation buffer aquatic habitats from direct wildfire impacts in interior Alaska boreal stream networks? Joint Aquatic Sciences Meeting, 2-4 March 2022, Grand Rapids, MI.	May 2022	Here, we take a landscape perspective to explore interactions among wildfire severity, climate, vegetation, geomorphic conditions, and aquatic habitat suitability to investigate the ability of riparian forest and valley bottoms to buffer streams from fire. Our current goal is to use output from a suite of integrated environmental models to identify climate, vegetation, and watershed drivers of fire in valley bottoms toward quantifying the resilience
Falke, J., S. Rupp, and H. Genet. 2022. Does riparian vegetation buffer aquatic habitats from direct wildfire impacts in interior Alaska boreal stream networks? Alaska Chapter American Fisheries Society Annual Meeting [Virtual], 28 February -4 March 2022.	February 2022	Here, we take a landscape perspective to explore interactions among wildfire severity, climate, vegetation, geomorphic conditions, and aquatic habitat suitability to investigate the ability of riparian forest and valley bottoms to buffer streams from fire. Our current goal is to use output from a suite of integrated environmental models to identify climate, vegetation, and watershed drivers of fire in valley bottoms toward quantifying the resilience of aquatic species and habitats across this b
Falke, J., S. Rupp, H. Genet, P. Bieniek, A. Bennett, S. Klobucar, D. Strohm-Klobucar, and E. Hinkle. 2021. Wildfire in changing boreal stream ecosystems: a friend or foe for fishes? Oregon Chapter American Fisheries Society Annual Meeting [virtual], 2-4 March 2022.	March 2022	For the contemporary landscape, we explore potential interactions among observed fires, stream network topology, geomorphic conditions, and fish habitat suitability with consideration of the ability of riparian forest and valley bottoms to buffer streams from fire effects. Additionally, we will use output from dynamic ecosystem models to forecast vulnerability of boreal stream habitats to changes in flammability and active layer depth under future climate scenarios.
Falke, J., S. Rupp, H. Genet, P. Bieniek, A. Bennett, S. Klobucar, D. Strohm-Klobucar, and E. Hinkle. 2021. Wildfire in changing boreal stream ecosystems: a friend or foe for fishes? Alaska Chapter American Fisheries Society Annual Meeting [virtual], 22-25 March 2021.	March 2021	The overall goal of the five-year Boreal Fish and Fire Project is to investigate the effects of fire on boreal stream fish and their habitats though a series of field, lab, and modeling studies focused on elucidating relationships among climate, fire, the physical environment, and biological responses at multiple spatial scales. Here we highlight initial results from a suite of integrated, spatially-explicit models to identify where and when aquatic populations may be vulnerable to fire across
Falke, J., S. Rupp, Genet, H., and J. Paul. 2023. Does riparian vegetation buffer aquatic habitats from direct wildfire impacts in interior Alaska boreal stream networks? Alaska Chapter American Fisheries Society Annual Meeting, 28-30 March 2023, Fairbanks, AK.	March 2023	We explored interactions among wildfire severity, climate, vegetation, geomorphic conditions, and aquatic habitat suitability in interior Alaska to investigate the ability of riparian valley bottoms to buffer streams from fire. Pre-fire vegetation composition differed between valley bottoms and hillslopes, fire return interval in valley bottoms was twice that of hillslopes, and valleys were much less likely to experience high severity burns.
Falke, J., S. Rupp, Genet, H., and J. Paul. 2022. Does riparian vegetation buffer aquatic habitats from direct wildfire impacts in interior Alaska boreal stream networks? American Fisheries Society Annual Meeting, 21-27 August 2022, Spokane, WA.	August 2022	Fire is the dominant ecological disturbance in boreal forests and a strong control on landscape characteristics that affect freshwater processes and aquatic habitats. Our current goal is to use output from a suite of integrated environmental models to identify climate, vegetation, and watershed drivers of fire in valley bottoms toward quantifying the resilience of aquatic species and habitats across this broad sub-Arctic ecosystem in a fiery future.
Falke, J., McNyset, K., Flitcroft, B., Reeves, G., Jordan, C., and J. Dunham. 2012. Application of a riverscape water temperature model for conservation and management of threatened salmonids in the Pacific Northwest. American Fisheries Society Annual Meeting. St. Paul, MN. August 22, 2012.	August 2012
Falke, J., Klobucar, S., Rupp, S., Bieniek, P., Genet, H., Bennett, A., Strohm-Klobucar, D., and E. Hinkle. Aquatic ecosystem vulnerability to fire and climate change in Alaskan boreal forests. Strategic Environmental Research and Development Program Annual Symposium. 30 November – 3 December, 2021. Washington, D.C. and Virtual.	November 2021	We are using a multi-faceted approach to better understand fire impacts on aquatic ecosystems in interior Alaska via: 1) empirical field studies of physical and biological mechanisms across boreal headwater streams; and, 2) integrated modeling to produce spatially explicit projections of climate, fire, vegetation, and hydrology and examine current and future changes across levels of ecological organization in four boreal river drainages encompassing nearly 20,000 km<sup>2 </sup>in interior Alas
Falke, J., Fitzgerald, K., Delbecq, C., Fellman, J., and R. Bellmore. Icefields to Oceans: The Influence of Stream Flow Patterns on Juvenile Salmon Growth in Southeast Alaska. Ocean Sciences Meeting 2022. 27 February – 4 March, 2022, Honolulu, HI, USA.	February 2022	We are using a high-resolution and mechanistic approach to examine how the sequence of high and low flow events that a watershed experiences influences foraging and growth conditions for juvenile coho salmon to inform broader-scale studies and monitoring and further develop salmon life cycle models. This study is occurring in collaboration with researchers at the University of Hawaiʻi, who are conducting similar studies on how flow regimes influence organisms in Hawaiʻi streams.
Falke, J., Ching, J., Sparks, M., Cunningham, C., and P. Westley. 2015. Fine-scale resource selection by Sockeye Salmon (Oncorynchus nerka) in groundwater-fed ponds, Bristol Bay, Alaska. Alaska Chapter American Fisheries Society Annual Meeting, Homer, Alaska, 4-6 November, 2015.	November 2015	The overall goal of this pilot project was to determine the efficacy of techniques to quantify fine-scale resource selection by spawning sockeye salmon individuals and aggregations across three groundwater-fed ponds.In light of climate change and other anthropogenic changes to salmon ecosystems, characterization of the role of habitat heterogeneity, including water temperature, in salmon spawning dynamics should be a high priority.
Falke, J. A., Dunham, J. B., McNyset, K. M., Jordan, C. E., and G. H. Reeves. 2014. The relative influence of ecological processes in predicting steelhead redd abundance along a complex riverscape in the John Day River basin, Oregon. Pacific States Marine Fisheries Commission Steelhead Managers Meeting. March 19, 2014. Stevenson, OR.	March 2014	Predicting steelhead redd abundance along a complex riverscape in the John Day River basin, Oregon, will furnish an important management tool for steelhead.
Falke, J. A. and D. J. Isaak. 2012. Overview and applications of stream water temperature predictive models for fish conservation and management. Alaska Chapter of the American Fisheries Society Annual Meeting. October 24, 2012. Kodiak, AK.	October 2012	We review applications of predictive stream water temperature models for fish conservation and management
F.J.W. Parmentier, W. Zhang, Y. Mi, X. Zhu, P.A. Miller, J. van Huissteden, D. Hayes, Q. Zhang, A.D. McGuire1, and T.R. Christensen. Higher Methane Emissions in Regions of Sea Ice Retreat. AGU 2014 Fall Meeting.	December 2014	Our goal is to elucidate to what degree a correlation between methane emissions and sea ice exists in areas of high retreat compared to areas that have seen less sea ice decline. For this purpose, we compare the output from three regional methane models (LPJ-GUESS WhyMe, Peatland-VU and TEM6) to independent observations of sea ice extent, and conducted rigorous spatial and temporal analysis. A similar response to sea ice retreat among these models increases our confidence that teleconnections
Euskirchen, S., A. D. McGuire, D. W. Kicklighter, Q. Zhuang, J. S. Clein, K. C. McDonald, N. V. Smith, J. S. Kimball, R. J. Dargaville, and D. G. Dye. December 2004. Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2004
Euskirchen, S. E., A. D. McGuire, and F. S. Chapin III. October 2006. Energy feedbacks to the climate system due to reduced high latitude snow cover during 20th Century warming. AAAS Arctic Division Meeting, Fairbanks, AK.	October 2006
Euskirchen, S. E., A. D. McGuire, and F. S. Chapin III. November 2006. Energy feedbacks to the climate system due to reduced high latitude snow cover during 20th Century warming. Earth System Science Partnership Open Science Conference, Beijing, China.	November 2006
Euskirchen, S. E., A. D. McGuire, and F. S. Chapin III. December 2006. Energy feedbacks to the climate system due to reduced high latitude snow cover during 20th Century warming. Fall Meeting, American Geophysical Union, San Francisco, CA.	December 2006
Euskirchen, S. E., A. D. McGuire, D. W. Kicklighter, Q. Zhuang, J. S. Clein, R. J. Dargaville, D. G. Dye, J. S. Kimball, K. C. McDonald, J. M. Melillo, V. E. Romanovsky, and N. V. Smith. September 2005. Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems. Seventh International Carbon Dioxide Conference. Boulder, CO.	September 2005
Euskirchen, E.S., T.,B. Carman, and A.D. McGuire. 2012. Modeling leaf phenology variation by groupings within and across ecosystems in northern Alaska. Meeting of the American Geophysical Union, San Francisco, California.	December 2012	These findings also demonstrate that high-latitude dynamic vegetation models should consider variation in leaf-out by groupings of species within and across ecosystems in order to provide more accurate projections of future plant distributions in Arctic regions.
Euskirchen, E.S., S. Serbin, T. Carman, C. Iversen, V. Salmon, H. Genet, and A.D. McGuire. 2017. Predicting Changes in Arctic Tundra Vegetation: Towards an Understanding of Plant Trait Uncertainty. Fall 2017 Meeting of the American Geophysical Union. Poster Presentation.	December 2017	Arctic tundra plant communities are currently undergoing unprecedented changes in both composition and distribution under a warming climate. Predicting how these dynamics may play out in the future is important since these vegetation shifts impact both biogeochemical and biogeophysical processes. More precise estimates of these future vegetation shifts is a key challenge due to both a scarcity of data with which to parameterize vegetation models, particularly in the Arctic, as well as a limited
Euskirchen, E.S., J.K. Roach, V. Patil, B. Griffith, and A.D. McGuire. 2015. Inclusion of Additional Plant Species and Trait Information in Dynamic Vegetation Modeling of Arctic Tundra and Boreal Forest Ecosystems. Fall Meeting of the American Geophysical Union. Oral Presentation.	December 2015	Here, we focus on how the inclusion of additional plant species and trait information may strengthen dynamic vegetation modeling in applications pertaining to: (1) forage for caribou in northern Alaska, (2) above- and belowground carbon storage in the boreal forest and lake margins of interior Alaska, and (3) arctic tundra and boreal forest leaf phenology. While the inclusion of additional information generally proved valuable in these three applications, this additional detail depends on fiel
Euskirchen, E.S., C. Edgar, M.R. Turetsky, M. Waldrop, J.W. Harden, and A.D. McGuire. 2013. Patterns in and controls over CO2 fluxes across a gradient of permafrost thaw in boreal Alaska. 16th International Boreal Forest Research Association Conference, Edmonton, Alberta, Canada.	October 2013	These results suggest that boreal peatland responses to warming and drying, both of which are expected to occur in a changing climate, will depend on permafrost regime.
Euskirchen, E.S., C. Edgar, M.R. Turetsky, J.W. Harden, and A.D. McGuire. December 2011. Quantifying CO2 fluxes across a gradient of permafrost in boreal Alaska. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2011
Euskirchen, E.S., A.L. Breen, A. Bennett, H. Genet, M. Lindgren, T.A. Kurkowski, A.D. McGuire, and T.S. Rupp. 2016. Consequences of changes in vegetation and snow cover for climate feedbacks in Alaska and Northwest Canada. Fall Meeting of the American Geophysical Union, San Francisco, California. Oral Presentation.	December 2016	A continuing challenge in global change studies is to determine how land surface changes may impact atmospheric heating. Changes in vegetation and snow cover may lead to feedbacks to climate through changes in surface albedo and energy fluxes between the land and atmosphere. In addition to these biogeophysical feedbacks, biogeochemical feedbacks associated with changes in carbon (C) storage in the vegetation and soils may also influence climate. Here, using a transient biogeographic model (ALFR
Euskirchen, E., T.B. Carman, and A.D. McGuire. 2013. Vegetation dynamics in a changing Arctic: Improved biogeochemistry response to warming climate through a detailed representation of leaf phenology. Annual Meeting of the Ecological Society of America, Minneapolis, Minnesota.	August 2013	These findings demonstrate that dynamic vegetation models should consider variation in leaf-out by plant functional types within these ecosystems in order to provide more accurate projections of feedbacks to climate and plant distributions in Arctic regions.
Euskirchen, E., C. Edgar, M. Waldrop, M. Turetsky, J. Harden, and A.D. McGuire. 2013. Quantifying CO2 fluxes across a gradient of permafrost thaw in boreal Alaska. Fourth North America Carbon Program All Investigators Meeting, Albuquerque, New Mexico.	February 2013	Changes in vegetation and soil properties following permafrost degradation and thermokarst development may increase the vulnerability of the C stocks in these ecosystems to climate change by stimulating soil microbial decomposition.
Euskirchen, E. S., A. D. McGuire, and F. S. Chapin III. April 2006. The relative influences of the responses of albedo and the exchange with the atmosphere of carbon storage in high latitude terrestrial ecosystems on the climate system. Annual Meeting, European Geophysical Union, Vienna, Austria.	April 2006
Euskirchen, E. S., A. D. McGuire, T. S. Rupp, F. S. Chapin III, M. Oleson, J. S. Clein, and T. Burnside. September 2008. Changes in atmospheric heating and carbon dynamics under future climate scenarios in fire-disturbed northern boreal forests. 14th International Boreal Forest Research Association Conference, Harbin, China.	September 2008
Euskirchen, E. S., A. D. McGuire, F. S. Chapin III, and S. Yi. September 2007. Changes in plant communities in northern Alaska under scenarios of climate change, 2003-2100. AAAS Arctic Division Meeting, Anchorage, AK.	September 2007
Euskirchen, E. S., A. D. McGuire, F. S. Chapin III, and S. Yi. March 2008. Changes in plant communities in northern Alaska under scenarios of climate change 2003?2100: Implications for climate feedbacks. International Geosphere-Biosphere Programme Workshop on Plant Functional Types, Paris, France. Invited.	March 2008
Euskirchen, E. S., A. D. McGuire, F. S. Chapin III, and S. Yi. December 2007. Changes in plant communities in northern Alaska under scenarios of climate change 2003 to 2100. Fall Meeting of the American Geophysical Union, San Francisco, CA.	December 2007
Edwards, O.N., J.A. Falke, J.W. Savereide, and A.C. Seitz. 2020. Summer growth and movement behavior of juvenile Chinook Salmon in the Chena River, Alaska. Alaska Chapter of the American Fisheries Society Annual Meeting, Fairbanks, Alaska, 23 March to 26 March, 2020.	March 2020	Adult Chinook Salmon returning to spawn have been enumerated across the Yukon River basin for decades, yet a data gap exists regarding the ecology and distribution of juvenile life stages and their habitats. Information on juvenile salmon growth, survival, and movement behavior are important components of life cycle monitoring, and could aid in identifying areas of high freshwater production, inform habitat protection measures, or influence fishery regulations.
Edwards, O.N., J.A. Falke, J.W. Savereide, and A.C. Seitz. 2019. Juvenile Chinook Salmon (Oncorhync

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

Alaska Research Activities

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