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Jason B Dunham

I am a Supervisory Research Ecologist at the Forest and Rangeland Ecosystem Science Center in Corvallis, Oregon

My research is focused on landscape ecology of aquatic ecosystems, conservation biology of focal species, ecology of natural disturbance, biological invasions, and monitoring.

 

Professional Experience

  • 2005 - Present: USGS, Forest and Rangeland Ecosystem Science Center, Supervisory Research Ecologist, Corvallis, Oregon

     

Education and Certifications

  • Ph.D. Ecology Evolution and Conservation Biology, University of Nevada, Reno, NV

     

Science and Products

three scientists preparing to conduct an underwater biological survey

Aquatic & Landscape Ecology Research Team (FRESC)

Fresh waters are one of the most valuable and threatened resources worldwide. They supply critical services to society and harbor many of the world’s most imperiled species. We conduct research and provide technical assistance to address challenges to fresh waters. Our research focuses on ecological processes in freshwater and terrestrial systems and the effects of those processes on landscape...
By
Forest and Rangeland Ecosystem Science Center
Aquatic & Landscape Ecology Research Team (FRESC)

Aquatic & Landscape Ecology Research Team (FRESC)

Fresh waters are one of the most valuable and threatened resources worldwide. They supply critical services to society and harbor many of the world’s most imperiled species. We conduct research and provide technical assistance to address challenges to fresh waters. Our research focuses on ecological processes in freshwater and terrestrial systems and the effects of those processes on landscape...
Learn More
Filter Total Items: 20
Upper Whitehorse Creek, OR

River’s End: Mapping Patterns of Stream Drying in the Western United States

Water in the western United States is disappearing, and several states are facing severe water shortages as drought conditions worsen. Many streams are drying up, and there is growing concern that this trend will only continue as climate change produces warmer and drier conditions. The loss of stream ecosystems has far reaching ecological, social, and economic implications. Species that...
By
Climate Adaptation Science Centers
River’s End: Mapping Patterns of Stream Drying in the Western United States

River’s End: Mapping Patterns of Stream Drying in the Western United States

Water in the western United States is disappearing, and several states are facing severe water shortages as drought conditions worsen. Many streams are drying up, and there is growing concern that this trend will only continue as climate change produces warmer and drier conditions. The loss of stream ecosystems has far reaching ecological, social, and economic implications. Species that depend on
Learn More
Native westslope cutthroat trout swim in the north fork of the Flathead River in northwestern Montana.

The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.

Salmonids (a family of fish that includes salmon, trout, and char) are a keystone species for both aquatic and terrestrial ecosystems, and can be an early warning indicator of ecosystem health. Salmonids also have strong societal values and contribute enormously to regional economies and Native American cultures. Today, many native salmonid populations are small, highly fragmented, and...
By
Climate Adaptation Science Centers
The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.

The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.

Salmonids (a family of fish that includes salmon, trout, and char) are a keystone species for both aquatic and terrestrial ecosystems, and can be an early warning indicator of ecosystem health. Salmonids also have strong societal values and contribute enormously to regional economies and Native American cultures. Today, many native salmonid populations are small, highly fragmented, and isolated
Learn More

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 26

Stream Temperature in the Lahontan Basin of Nevada and California, 2017-2019 Stream Temperature in the Lahontan Basin of Nevada and California, 2017-2019

This dataset includes hourly stream temperature data for 139 temperature logger sites throughout the Lahontan Basin Region of Northern Nevada and Eastern California. Data loggers were part a study beginning in 2017, with data available through 2019 for most locations. The spatial data layer contains site locations, geographic information, data summaries, mean August stream temperatures...
By
Forest and Rangeland Ecosystem Science Center

Stream Temperature and Water Presence Models of Willow/Whitehorse and Willow/Rock Watersheds, Oregon and Nevada Stream Temperature and Water Presence Models of Willow/Whitehorse and Willow/Rock Watersheds, Oregon and Nevada

This data release contains spatial stream network (SSN) objects and R scripts to run SSN models to predict mean monthly stream temperature between May and August and water presence on May 15, June 15, July 15, and August 15 in the Willow/Whitehorse watershed during 2015, 2016, and 2017 and the Willow/Rock watershed during 2016 and 2017. Functions referenced within the script may accessed...
By
Washington Water Science Center

FLOwPER Database: StreamFLOw PERmanence field observations, August 2019 - October 2019 FLOwPER Database: StreamFLOw PERmanence field observations, August 2019 - October 2019

IMPORTANT NOTE: More recent versions of these data release are available at this link. This dataset includes spatial locations where streamflow permanence observations (continuous flow, discontinuous flow, and dry) were recorded using the FLOwPER (FLOw PERmanence) field survey available in the Survey 123 and S1 mobile application. Additional information to describe the field conditions...
By
Washington Water Science Center

Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2019 Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2019

This data release is superseded by Thorson, J.M., Dunham, J.B., Heck, M.P., Hockman-Wert, D.P., and Mintz, J.M., 2022, Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9EDM6L6. Please contact fresc_outreach@usgs.gov for original data set. This dataset includes hourly stream and air...
By
Forest and Rangeland Ecosystem Science Center

Geomorphic and larval lamprey surveys in tributaries of the Umpqua River, Oregon Geomorphic and larval lamprey surveys in tributaries of the Umpqua River, Oregon

Interactions between geomorphic processes at multiple scales shape the distributions of habitats, species, and life stages that a river can support. Understanding these hierarchical processes may be helpful for proactive monitoring and restoration of native Western Brook Lamprey (Lampetra richardsoni) and Pacific Lamprey (Entosphenus tridentatus) in Pacific Northwest rivers. The...
By
Oregon Water Science Center

Stream temperature and drying data from Willow/Whitehorse watersheds, southeast Oregon, 2014-16, and Willow/Rock/Frazer watersheds, northern Nevada, 2015-2016 Stream temperature and drying data from Willow/Whitehorse watersheds, southeast Oregon, 2014-16, and Willow/Rock/Frazer watersheds, northern Nevada, 2015-2016

These tabular, spatial, and code data sets were created in support of a stream temperature and drying study that took place in the Willow and Whitehorse watersheds of southeastern Oregon from 2014-2016 and the Willow, Rock, and Frazer watersheds of northern Nevada from 2015-2016. A prior data release of stream temperature data and associated spatial data from the Willow and Whitehorse...
By
Forest and Rangeland Ecosystem Science Center

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

No results found.

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 155

Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability

Adaptive plasticity in thermal tolerance traits may buffer organisms against changing temperatures, making such responses of particular interest in the face of global climate change. Although population variation is integral to the evolvability of this trait, many studies inferring proxies of physiological vulnerability from thermal tolerance traits extrapolate data from one or a few...
Authors
Amanda S. Cicchino, Alisha A. Shah, Brenna R. Forester, Jason B. Dunham, N. LeRoy Poff, Cameron K. Ghalambor, W. Chris Funk
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

The patchwork governance of ecologically available water: A case study in the Upper Missouri Headwaters, Montana, United States The patchwork governance of ecologically available water: A case study in the Upper Missouri Headwaters, Montana, United States

Institutional authority and responsibility for allocating water to ecosystems (“ecologically available water” [EAW]) is spread across local, state, and federal agencies, which operate under a range of statutes, mandates, and planning processes. We use a case study of the Upper Missouri Headwaters Basin in southwestern Montana, United States, to illustrate this fragmented institutional...
Authors
Amanda E. Cravens, Julia B. Goolsby, Theresa Jedd, Deborah J. Bathke, Shelley Crausbay, Ashley E Cooper, Jason B. Dunham, Tonya Haigh, Kimberly R. Hall, Michael J. Hayes, Jamie McEvoy, Rebecca L Nelson, Marketa Podebradska, Aaron R. Ramirez, Elliot Wickham, Dionne Zoanni
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center, Northern Rocky Mountain Science Center

Climate vulnerability for a desert fish: Integrating hydrologic exposures, adaptive capacity, and growth potential Climate vulnerability for a desert fish: Integrating hydrologic exposures, adaptive capacity, and growth potential

Climate vulnerability can be evaluated by multiple organismal responses. We developed a climate vulnerability framework focused on growth potential of redband trout (Oncorhynchus mykiss newberri). We employed a bioenergetics model to evaluate spatial variability in growth potential in relation to constraints on body size imposed by stream flow, physiological responses linked to variable...
Authors
Joseph R. Benjamin, Jason B. Dunham, Kara Anlauf-Dunn, Erika J. Eliason
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Fishes of Harney Basin revisited: An assessment of the distribution of native and nonnative fishes over a half century Fishes of Harney Basin revisited: An assessment of the distribution of native and nonnative fishes over a half century

The Harney Basin is Oregon's largest internally draining basin and contains a unique native fish assemblage. The first and only comprehensive study of the origin and distribution of Harney Basin fishes occurred in 1971. Here, we update this study and identify potential threats to the basin's native fishes a half century later. Our assessment documents that all species of native fishes...
Authors
Matthew Laramie, Jason B. Dunham, Francine H. Mejia, Emily Dawn Heaston, Peter A Bisson
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection

Objective To evaluate the vulnerability of Bull Trout Salvelinus confluentus to potential climate changes across its range in Oregon, we compiled disparate expert knowledge of the distribution of spawning and rearing and combined these probabilistic statements as data along with documented records of breeding and rearing in a joint occupancy model.Methods The joint expert knowledge...
Authors
Nathan Chelgren, Jason B. Dunham, Stephanie L Gunckel, David P Hockman-Wert, Chris S Allen
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends

This report describes status and trends in watershed condition across the Northwest Forest Plan (NWFP) area over the first 25 years since its inception in 1994. The program charged with this task is the Aquatic and Riparian Effectiveness Monitoring Program (AREMP), which has assembled information from field data collection, spatial datasets, and a host of landscape models to evaluate the...
Authors
Jason B. Dunham, Christine Hirsch, Sean Gordon, Rebecca L. Flitcroft, Nathan Chelgren, Marcia N. Snyder, David P Hockman-Wert, Gordon H. Reeves, Heidi V. Andersen, Scott K. Anderson, William A. Battaglin, Tom A. Black, Jason Brown, Shannon Claeson, Lauren Hay, Emily D. Heaston, Charles H. Luce, Nathan Nelson, Colin Penn, Mark Raggon
By
Ecosystems Mission Area, Water Resources Mission Area, Land Management Research Program, Colorado Water Science Center, Forest and Rangeland Ecosystem Science Center, Washington Water Science Center

Non-USGS Publications**

Rosenberger, A.E., Dunham, J.B., 2005, Validation of abundance estimates from mark-recapture and removal techniques for rainbow trout captured by electrofishing in small streams: North American Journal of Fisheries Management, v. 25, p. 1395-1410.
Dunham, J.B., Pilliod, D.S., Young, M., 2004, Assessing the Consequences of Nonnative Trout in Headwater Ecosystems in Western North America: Fisheries, v. 29, no. 6, p. 18-26, https://doi.org/http://dx.doi.org/10.1577/1548-8446(2004)29[18:ATCONT]2.0.CO;2.
Meeuwig, M.H., Dunham, J.B., Hayes, J.P., Vinyard, G.L., 2004, Effects of constant and cyclical thermal regimes on growth and feeding of juvenile cutthroat trout of variable sizes: Ecology of Freshwater Fish, v. 13, p. 208-216.
Poole, G.C., Dunham, J.B., Keenan, D.M., Sauter, S.T., McCullough, D.A., Mebane, C., Lockwood, J.C., Essig, D.A., Hicks, M.P., Sturdevant, D.J., Materna, E.J., Spalding, M., Risley, J., Deppman, M., 2004, The case for regime-based water quality standards: BioScience, v. 54, no. 2, p. 155-161.
Peterson, J., Dunham, J.B., 2003, Combining inferences from models of capture efficiency, detectability, and suitable habitat to classify landscapes for conservation of threatened bull trout: Conservation Biology, v. 17, no. 4, p. 1070-1077.
Dunham, J.B., Schroeter, R., Rieman, B.E., 2003, Influence of maximum water temperature on occurence of Lahotan cutthroat trout within streams: North American Journal of Fisheries Management, v. 23, p. 1042-1049.
Dunham, J.B., Rieman, B.E., Chandler, G.L., 2003, Influences of temperature and environmental variable on the distribution of bull trout within streams at the southern margin of its range: North American Journal of Fisheries Management, v. 23, p. 894-904, https://doi.org/http://dx.doi.org/10.1577/M02-028.
Isaak, D.J., Thurow, R.F., Rieman, B.E., Dunham, J.B., 2003, Temporal variation in synchrony among Chinook salmon (Oncorhynchus tshawytscha) redd counts from a wilderness area in central Idaho: Canadian Journal of Fisheries and Aquatic Sciences, v. 60, p. 840-848.
Dunham, J.B., Adams, S.B., Schroeter, R., Novinger, D.C., 2002, Alien invasions in aquatic ecosystems - Toward an understanding of brook trout invasions and potential impacts on inland cutthroat trout in western North America: Reviews in Fish Biology and Fisheries, v. 12, p. 373-391.
Dunham, J.B., Cade, B.S., Terrell, J.W., 2002, Influences of spatial and temporal variation on fish-habitat relationships defined by regression quantiles: Transactions of the American Fisheries Society, v. 131, p. 86-98.
Sauter, S.T., McMillan, J.R., Dunham, J.B., 2001, Salmonid behavior and water temperature: US Environmental Protection Agency, Region 10 EPA-910-D-01-001, p. 36.
Dunham, J.B., Rieman, B.E., Davis, K., 2001, Sources and magnitude of sampling error in redd counts for bull trout: North American Journal of Fisheries Management, v. 21, p. 343-352.
Dunham, J.B., 2000, Book Review - Metapopulations and Ecology by I. Hanksi. Oxford University Press, New York: Ecology, v. 81, no. 6, p. 1757-1758, https://doi.org/10.1890/0012-9658(2000)081[1757:MAE]2.0.CO;2.
Dunham, J.B., Rahn, M.E., Schroeter, R., Breck, S.W., 2000, Diets of sympatric Lahontan cutthroat trout and nonnative brook trout- implications for species interactions: Western North American Naturalist, v. 60, no. 3, p. 304-310.
Dunham, J.B., Dickerson, B.G., Beever, E.A., Duncan, R.D., Vinyard, G.L., 2000, Effects of food limitation and emigration on self-thinning in experimental minnow cohorts: Journal of Animal Ecology, v. 69, p. 927-934.
Rieman, B.E., Dunham, J.B., 2000, Metapopulations and salmonids - A synthesis of life history patterns and empirical observations: Ecology of Freshwater Fish, v. 9, p. 51-64.
Dunham, J.B., Peacock, M., Rieman, B.E., Schroeter, R., Vinyard, G.L., 1999, Local and geographic variability in the distribution of stream-living Lahontan cutthroat trout: Transactions of the American Fisheries Society, v. 128, p. 875-889.
Dunham, J.B., Rieman, B.E., 1999, Metapopulation structure of bull trout - Influences of physical, biotic, and geometrical landscape characteristics: Ecological Applications, v. 9, no. 2, p. 642-655, https://doi.org/10.1890/1051-0761(1999)009[0642:MSOBTI]2.0.CO;2.
Dunham, J.B., Minckley, W.L., 1998, Allozymic variation in desert pupfish from natural and artificial habitats- Genetic conservation in fluctuating populations: Biological Conservation, v. 84, p. 7-15.
Dunham, J.B., Vinyard, G.L., Rieman, B.E., 1997, Habitat fragmentation and extinction risk of Lahontan cutthroat trout: North American Journal of Fisheries Management, v. 17, p. 1126-1133.
Dunham, J.B., Vinyard, G.L., 1997, Incorporating stream level variability into analysis of site level fish habitat relationships- some cautionary examples: Transactions of the American Fisheries Society, v. 126, p. 323-329.
Dunham, J.B., Vinyard, G.L., 1997, Relationships between body mass, population density, and the self thinning rule in stream-living salmonids: Canadian Journal of Fisheries and Aquatic Sciences, v. 54, no. 5, p. 1025-1030, https://doi.org/10.1139/f97-012.
Luce, C.H., Rieman, B.E., Dunham, J.B., Clayton, J., King, J.G., and Black, T.A., 2001, Incorporating aquatic ecology into decisions on prioritization of road decommissioning: Water Resources Impact, v. 3, no. 3, p. 8-14.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.

Filter Total Items: 33
FLOwPER User’s Guide—For Collection of FLOw PERmanence Field Observations

FLOwPER User’s Guide—For Collection of FLOw PERmanence Field Observations

USGS and USFS develop a mobile application field form for rapid collection of flow/no flow observations.

Read Article
Can Nutrient Additions Facilitate Recovery of Pacific Salmon?

Can Nutrient Additions Facilitate Recovery of Pacific Salmon?

Multiple restoration actions have been implemented in response to declining salmon populations, including adding salmon carcasses or artificial...

Read Article
Spawning Potential of Female Bull Trout in a River-Reservoir System

Spawning Potential of Female Bull Trout in a River-Reservoir System

For coldwater species such as bull trout, water temperatures can affect energy reserves for growth, reproduction, or survival. 

Read Article
Modeling Control of Common Carp in Malheur Lake

Modeling Control of Common Carp in Malheur Lake

The introduction of Common Carp into North American waters has led to widespread alteration of aquatic ecosystems. Researchers developed a population...

Read Article
Application of Multiple-Population Viability Analysis to Evaluate Species Recovery Alternatives

Application of Multiple-Population Viability Analysis to Evaluate Species Recovery Alternatives

A recently developed method of multiple population viability analysis (MPVA) addresses many limitations of traditional PVA.

Read Article
Decision Analysis for the Reintroduction of Bull Trout into the Lower Pend Oreille River, Washington

Decision Analysis for the Reintroduction of Bull Trout into the Lower Pend Oreille River, Washington

Structured decision making can help identify realistic objectives and management alternatives to species reintroduction using a quantitative modeling...

Read Article

Science and Products

three scientists preparing to conduct an underwater biological survey

Aquatic & Landscape Ecology Research Team (FRESC)

Fresh waters are one of the most valuable and threatened resources worldwide. They supply critical services to society and harbor many of the world’s most imperiled species. We conduct research and provide technical assistance to address challenges to fresh waters. Our research focuses on ecological processes in freshwater and terrestrial systems and the effects of those processes on landscape...
By
Forest and Rangeland Ecosystem Science Center
Aquatic & Landscape Ecology Research Team (FRESC)

Aquatic & Landscape Ecology Research Team (FRESC)

Fresh waters are one of the most valuable and threatened resources worldwide. They supply critical services to society and harbor many of the world’s most imperiled species. We conduct research and provide technical assistance to address challenges to fresh waters. Our research focuses on ecological processes in freshwater and terrestrial systems and the effects of those processes on landscape...
Learn More
Filter Total Items: 20
Upper Whitehorse Creek, OR

River’s End: Mapping Patterns of Stream Drying in the Western United States

Water in the western United States is disappearing, and several states are facing severe water shortages as drought conditions worsen. Many streams are drying up, and there is growing concern that this trend will only continue as climate change produces warmer and drier conditions. The loss of stream ecosystems has far reaching ecological, social, and economic implications. Species that...
By
Climate Adaptation Science Centers
River’s End: Mapping Patterns of Stream Drying in the Western United States

River’s End: Mapping Patterns of Stream Drying in the Western United States

Water in the western United States is disappearing, and several states are facing severe water shortages as drought conditions worsen. Many streams are drying up, and there is growing concern that this trend will only continue as climate change produces warmer and drier conditions. The loss of stream ecosystems has far reaching ecological, social, and economic implications. Species that depend on
Learn More
Native westslope cutthroat trout swim in the north fork of the Flathead River in northwestern Montana.

The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.

Salmonids (a family of fish that includes salmon, trout, and char) are a keystone species for both aquatic and terrestrial ecosystems, and can be an early warning indicator of ecosystem health. Salmonids also have strong societal values and contribute enormously to regional economies and Native American cultures. Today, many native salmonid populations are small, highly fragmented, and...
By
Climate Adaptation Science Centers
The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.

The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.

Salmonids (a family of fish that includes salmon, trout, and char) are a keystone species for both aquatic and terrestrial ecosystems, and can be an early warning indicator of ecosystem health. Salmonids also have strong societal values and contribute enormously to regional economies and Native American cultures. Today, many native salmonid populations are small, highly fragmented, and isolated
Learn More

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 26

Stream Temperature in the Lahontan Basin of Nevada and California, 2017-2019 Stream Temperature in the Lahontan Basin of Nevada and California, 2017-2019

This dataset includes hourly stream temperature data for 139 temperature logger sites throughout the Lahontan Basin Region of Northern Nevada and Eastern California. Data loggers were part a study beginning in 2017, with data available through 2019 for most locations. The spatial data layer contains site locations, geographic information, data summaries, mean August stream temperatures...
By
Forest and Rangeland Ecosystem Science Center

Stream Temperature and Water Presence Models of Willow/Whitehorse and Willow/Rock Watersheds, Oregon and Nevada Stream Temperature and Water Presence Models of Willow/Whitehorse and Willow/Rock Watersheds, Oregon and Nevada

This data release contains spatial stream network (SSN) objects and R scripts to run SSN models to predict mean monthly stream temperature between May and August and water presence on May 15, June 15, July 15, and August 15 in the Willow/Whitehorse watershed during 2015, 2016, and 2017 and the Willow/Rock watershed during 2016 and 2017. Functions referenced within the script may accessed...
By
Washington Water Science Center

FLOwPER Database: StreamFLOw PERmanence field observations, August 2019 - October 2019 FLOwPER Database: StreamFLOw PERmanence field observations, August 2019 - October 2019

IMPORTANT NOTE: More recent versions of these data release are available at this link. This dataset includes spatial locations where streamflow permanence observations (continuous flow, discontinuous flow, and dry) were recorded using the FLOwPER (FLOw PERmanence) field survey available in the Survey 123 and S1 mobile application. Additional information to describe the field conditions...
By
Washington Water Science Center

Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2019 Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2019

This data release is superseded by Thorson, J.M., Dunham, J.B., Heck, M.P., Hockman-Wert, D.P., and Mintz, J.M., 2022, Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9EDM6L6. Please contact fresc_outreach@usgs.gov for original data set. This dataset includes hourly stream and air...
By
Forest and Rangeland Ecosystem Science Center

Geomorphic and larval lamprey surveys in tributaries of the Umpqua River, Oregon Geomorphic and larval lamprey surveys in tributaries of the Umpqua River, Oregon

Interactions between geomorphic processes at multiple scales shape the distributions of habitats, species, and life stages that a river can support. Understanding these hierarchical processes may be helpful for proactive monitoring and restoration of native Western Brook Lamprey (Lampetra richardsoni) and Pacific Lamprey (Entosphenus tridentatus) in Pacific Northwest rivers. The...
By
Oregon Water Science Center

Stream temperature and drying data from Willow/Whitehorse watersheds, southeast Oregon, 2014-16, and Willow/Rock/Frazer watersheds, northern Nevada, 2015-2016 Stream temperature and drying data from Willow/Whitehorse watersheds, southeast Oregon, 2014-16, and Willow/Rock/Frazer watersheds, northern Nevada, 2015-2016

These tabular, spatial, and code data sets were created in support of a stream temperature and drying study that took place in the Willow and Whitehorse watersheds of southeastern Oregon from 2014-2016 and the Willow, Rock, and Frazer watersheds of northern Nevada from 2015-2016. A prior data release of stream temperature data and associated spatial data from the Willow and Whitehorse...
By
Forest and Rangeland Ecosystem Science Center

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

No results found.

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 155

Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability

Adaptive plasticity in thermal tolerance traits may buffer organisms against changing temperatures, making such responses of particular interest in the face of global climate change. Although population variation is integral to the evolvability of this trait, many studies inferring proxies of physiological vulnerability from thermal tolerance traits extrapolate data from one or a few...
Authors
Amanda S. Cicchino, Alisha A. Shah, Brenna R. Forester, Jason B. Dunham, N. LeRoy Poff, Cameron K. Ghalambor, W. Chris Funk
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

The patchwork governance of ecologically available water: A case study in the Upper Missouri Headwaters, Montana, United States The patchwork governance of ecologically available water: A case study in the Upper Missouri Headwaters, Montana, United States

Institutional authority and responsibility for allocating water to ecosystems (“ecologically available water” [EAW]) is spread across local, state, and federal agencies, which operate under a range of statutes, mandates, and planning processes. We use a case study of the Upper Missouri Headwaters Basin in southwestern Montana, United States, to illustrate this fragmented institutional...
Authors
Amanda E. Cravens, Julia B. Goolsby, Theresa Jedd, Deborah J. Bathke, Shelley Crausbay, Ashley E Cooper, Jason B. Dunham, Tonya Haigh, Kimberly R. Hall, Michael J. Hayes, Jamie McEvoy, Rebecca L Nelson, Marketa Podebradska, Aaron R. Ramirez, Elliot Wickham, Dionne Zoanni
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center, Northern Rocky Mountain Science Center

Climate vulnerability for a desert fish: Integrating hydrologic exposures, adaptive capacity, and growth potential Climate vulnerability for a desert fish: Integrating hydrologic exposures, adaptive capacity, and growth potential

Climate vulnerability can be evaluated by multiple organismal responses. We developed a climate vulnerability framework focused on growth potential of redband trout (Oncorhynchus mykiss newberri). We employed a bioenergetics model to evaluate spatial variability in growth potential in relation to constraints on body size imposed by stream flow, physiological responses linked to variable...
Authors
Joseph R. Benjamin, Jason B. Dunham, Kara Anlauf-Dunn, Erika J. Eliason
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Fishes of Harney Basin revisited: An assessment of the distribution of native and nonnative fishes over a half century Fishes of Harney Basin revisited: An assessment of the distribution of native and nonnative fishes over a half century

The Harney Basin is Oregon's largest internally draining basin and contains a unique native fish assemblage. The first and only comprehensive study of the origin and distribution of Harney Basin fishes occurred in 1971. Here, we update this study and identify potential threats to the basin's native fishes a half century later. Our assessment documents that all species of native fishes...
Authors
Matthew Laramie, Jason B. Dunham, Francine H. Mejia, Emily Dawn Heaston, Peter A Bisson
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection

Objective To evaluate the vulnerability of Bull Trout Salvelinus confluentus to potential climate changes across its range in Oregon, we compiled disparate expert knowledge of the distribution of spawning and rearing and combined these probabilistic statements as data along with documented records of breeding and rearing in a joint occupancy model.Methods The joint expert knowledge...
Authors
Nathan Chelgren, Jason B. Dunham, Stephanie L Gunckel, David P Hockman-Wert, Chris S Allen
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center

Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends

This report describes status and trends in watershed condition across the Northwest Forest Plan (NWFP) area over the first 25 years since its inception in 1994. The program charged with this task is the Aquatic and Riparian Effectiveness Monitoring Program (AREMP), which has assembled information from field data collection, spatial datasets, and a host of landscape models to evaluate the...
Authors
Jason B. Dunham, Christine Hirsch, Sean Gordon, Rebecca L. Flitcroft, Nathan Chelgren, Marcia N. Snyder, David P Hockman-Wert, Gordon H. Reeves, Heidi V. Andersen, Scott K. Anderson, William A. Battaglin, Tom A. Black, Jason Brown, Shannon Claeson, Lauren Hay, Emily D. Heaston, Charles H. Luce, Nathan Nelson, Colin Penn, Mark Raggon
By
Ecosystems Mission Area, Water Resources Mission Area, Land Management Research Program, Colorado Water Science Center, Forest and Rangeland Ecosystem Science Center, Washington Water Science Center

Non-USGS Publications**

Rosenberger, A.E., Dunham, J.B., 2005, Validation of abundance estimates from mark-recapture and removal techniques for rainbow trout captured by electrofishing in small streams: North American Journal of Fisheries Management, v. 25, p. 1395-1410.
Dunham, J.B., Pilliod, D.S., Young, M., 2004, Assessing the Consequences of Nonnative Trout in Headwater Ecosystems in Western North America: Fisheries, v. 29, no. 6, p. 18-26, https://doi.org/http://dx.doi.org/10.1577/1548-8446(2004)29[18:ATCONT]2.0.CO;2.
Meeuwig, M.H., Dunham, J.B., Hayes, J.P., Vinyard, G.L., 2004, Effects of constant and cyclical thermal regimes on growth and feeding of juvenile cutthroat trout of variable sizes: Ecology of Freshwater Fish, v. 13, p. 208-216.
Poole, G.C., Dunham, J.B., Keenan, D.M., Sauter, S.T., McCullough, D.A., Mebane, C., Lockwood, J.C., Essig, D.A., Hicks, M.P., Sturdevant, D.J., Materna, E.J., Spalding, M., Risley, J., Deppman, M., 2004, The case for regime-based water quality standards: BioScience, v. 54, no. 2, p. 155-161.
Peterson, J., Dunham, J.B., 2003, Combining inferences from models of capture efficiency, detectability, and suitable habitat to classify landscapes for conservation of threatened bull trout: Conservation Biology, v. 17, no. 4, p. 1070-1077.
Dunham, J.B., Schroeter, R., Rieman, B.E., 2003, Influence of maximum water temperature on occurence of Lahotan cutthroat trout within streams: North American Journal of Fisheries Management, v. 23, p. 1042-1049.
Dunham, J.B., Rieman, B.E., Chandler, G.L., 2003, Influences of temperature and environmental variable on the distribution of bull trout within streams at the southern margin of its range: North American Journal of Fisheries Management, v. 23, p. 894-904, https://doi.org/http://dx.doi.org/10.1577/M02-028.
Isaak, D.J., Thurow, R.F., Rieman, B.E., Dunham, J.B., 2003, Temporal variation in synchrony among Chinook salmon (Oncorhynchus tshawytscha) redd counts from a wilderness area in central Idaho: Canadian Journal of Fisheries and Aquatic Sciences, v. 60, p. 840-848.
Dunham, J.B., Adams, S.B., Schroeter, R., Novinger, D.C., 2002, Alien invasions in aquatic ecosystems - Toward an understanding of brook trout invasions and potential impacts on inland cutthroat trout in western North America: Reviews in Fish Biology and Fisheries, v. 12, p. 373-391.
Dunham, J.B., Cade, B.S., Terrell, J.W., 2002, Influences of spatial and temporal variation on fish-habitat relationships defined by regression quantiles: Transactions of the American Fisheries Society, v. 131, p. 86-98.
Sauter, S.T., McMillan, J.R., Dunham, J.B., 2001, Salmonid behavior and water temperature: US Environmental Protection Agency, Region 10 EPA-910-D-01-001, p. 36.
Dunham, J.B., Rieman, B.E., Davis, K., 2001, Sources and magnitude of sampling error in redd counts for bull trout: North American Journal of Fisheries Management, v. 21, p. 343-352.
Dunham, J.B., 2000, Book Review - Metapopulations and Ecology by I. Hanksi. Oxford University Press, New York: Ecology, v. 81, no. 6, p. 1757-1758, https://doi.org/10.1890/0012-9658(2000)081[1757:MAE]2.0.CO;2.
Dunham, J.B., Rahn, M.E., Schroeter, R., Breck, S.W., 2000, Diets of sympatric Lahontan cutthroat trout and nonnative brook trout- implications for species interactions: Western North American Naturalist, v. 60, no. 3, p. 304-310.
Dunham, J.B., Dickerson, B.G., Beever, E.A., Duncan, R.D., Vinyard, G.L., 2000, Effects of food limitation and emigration on self-thinning in experimental minnow cohorts: Journal of Animal Ecology, v. 69, p. 927-934.
Rieman, B.E., Dunham, J.B., 2000, Metapopulations and salmonids - A synthesis of life history patterns and empirical observations: Ecology of Freshwater Fish, v. 9, p. 51-64.
Dunham, J.B., Peacock, M., Rieman, B.E., Schroeter, R., Vinyard, G.L., 1999, Local and geographic variability in the distribution of stream-living Lahontan cutthroat trout: Transactions of the American Fisheries Society, v. 128, p. 875-889.
Dunham, J.B., Rieman, B.E., 1999, Metapopulation structure of bull trout - Influences of physical, biotic, and geometrical landscape characteristics: Ecological Applications, v. 9, no. 2, p. 642-655, https://doi.org/10.1890/1051-0761(1999)009[0642:MSOBTI]2.0.CO;2.
Dunham, J.B., Minckley, W.L., 1998, Allozymic variation in desert pupfish from natural and artificial habitats- Genetic conservation in fluctuating populations: Biological Conservation, v. 84, p. 7-15.
Dunham, J.B., Vinyard, G.L., Rieman, B.E., 1997, Habitat fragmentation and extinction risk of Lahontan cutthroat trout: North American Journal of Fisheries Management, v. 17, p. 1126-1133.
Dunham, J.B., Vinyard, G.L., 1997, Incorporating stream level variability into analysis of site level fish habitat relationships- some cautionary examples: Transactions of the American Fisheries Society, v. 126, p. 323-329.
Dunham, J.B., Vinyard, G.L., 1997, Relationships between body mass, population density, and the self thinning rule in stream-living salmonids: Canadian Journal of Fisheries and Aquatic Sciences, v. 54, no. 5, p. 1025-1030, https://doi.org/10.1139/f97-012.
Luce, C.H., Rieman, B.E., Dunham, J.B., Clayton, J., King, J.G., and Black, T.A., 2001, Incorporating aquatic ecology into decisions on prioritization of road decommissioning: Water Resources Impact, v. 3, no. 3, p. 8-14.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.

Filter Total Items: 33
FLOwPER User’s Guide—For Collection of FLOw PERmanence Field Observations

FLOwPER User’s Guide—For Collection of FLOw PERmanence Field Observations

USGS and USFS develop a mobile application field form for rapid collection of flow/no flow observations.

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Can Nutrient Additions Facilitate Recovery of Pacific Salmon?

Can Nutrient Additions Facilitate Recovery of Pacific Salmon?

Multiple restoration actions have been implemented in response to declining salmon populations, including adding salmon carcasses or artificial...

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Spawning Potential of Female Bull Trout in a River-Reservoir System

Spawning Potential of Female Bull Trout in a River-Reservoir System

For coldwater species such as bull trout, water temperatures can affect energy reserves for growth, reproduction, or survival. 

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Modeling Control of Common Carp in Malheur Lake

Modeling Control of Common Carp in Malheur Lake

The introduction of Common Carp into North American waters has led to widespread alteration of aquatic ecosystems. Researchers developed a population...

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Application of Multiple-Population Viability Analysis to Evaluate Species Recovery Alternatives

Application of Multiple-Population Viability Analysis to Evaluate Species Recovery Alternatives

A recently developed method of multiple population viability analysis (MPVA) addresses many limitations of traditional PVA.

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Decision Analysis for the Reintroduction of Bull Trout into the Lower Pend Oreille River, Washington

Decision Analysis for the Reintroduction of Bull Trout into the Lower Pend Oreille River, Washington

Structured decision making can help identify realistic objectives and management alternatives to species reintroduction using a quantitative modeling...

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