Few would believe the importance of freshwater mussels to scientists here in the Pacific Northwest. These little-known and often-ignored organisms may live for over a century on the bottoms of lakes, rivers, and streams. Freshwater mussels have a story to tell, and researchers have developed a way of ‘reading’ this story.
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
Aquatic & Landscape Ecology Research Team (FRESC)
Integrating stream gage records, water presence observations, and models to improve hydrologic prediction in stream networks
Updated classifications of flow permanence on streams in the Colville National Forest
USGS science supporting the Elwha River Restoration Project
Controls on Habitat for Native Lampreys in the Umpqua River Basin
Controls on Salmon and Lamprey Habitat along the Siletz River
Probability of Streamflow Permanence (PROSPER)
Aquatic & Landscape Ecology Research Team (FRESC)
Threat of Invasives to Native Species and Ecosystems
Restoration and Management of Aquatic Ecosystems
Climate and Aquatic Ecosystems
Life Histories of Aquatic Species
Landscape Ecology of Aquatic Ecosystems
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.
FLOwPER Database: StreamFLOw PERmanence field observations, Jan 2021 - Dec 2021
Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020
Simulated growth potential of redband trout in the Donner und Blitzen River Basin, southeastern Oregon, using a bioenergetics model
Simulated streamflow and stream temperature in the Donner und Blitzen River Basin, southeastern Oregon, using the Precipitation-Runoff Modeling System (PRMS)
Fishes of the Harney Basin revisited: A contemporary assessment of the distribution of fish fauna throughout the Harney Basin from 1990 to 2019 (ver. 2.0, April 2022)
Air and stream temperature and pressure for HJ Andrews Experimental Forest, Western Oregon, 2020
Stream Temperature in the Donner und Blitzen basin, Southeastern Oregon, 2018-2021
Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2021
FLOwPER Database: StreamFLOw PERmanence field observations, April 2020 - Nov 2020
Stream Temperature in the Lahontan Basin of Nevada and California, 2017-2019
Stream Temperature and Water Presence Models of Willow/Whitehorse and Willow/Rock Watersheds, Oregon and Nevada
FLOwPER Database: StreamFLOw PERmanence field observations, August 2019 - October 2019
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.
Few would believe the importance of freshwater mussels to scientists here in the Pacific Northwest. These little-known and often-ignored organisms may live for over a century on the bottoms of lakes, rivers, and streams. Freshwater mussels have a story to tell, and researchers have developed a way of ‘reading’ this story.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
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.
Assisted migration of coho salmon: Influences of passage and habitat availability on population dynamics
Restoring Pacific Lamprey in the Umpqua River Basin of Oregon: A workshop summary
The past, present, and a future for native charr in Japan
Working with people to create and apply science in bull trout conservation
Effects of culverts on habitat connectivity in streams—A science synthesis to inform National Environmental Policy Act analyses
Co-production of models to evaluate conservation alternatives for a threatened fish in a rapidly changing landscape
Reintroductions are one means of managing species distributions, but the feasibility of such efforts is uncertain. Here we consider reintroduction for threatened bull trout (Salvelinus confluentus) that currently occupy a small fraction of historically occupied habitats in the upper Klamath River basin owing to climate warming and human modifications of ecosystems. We engaged stakeholders across m
Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability
The patchwork governance of ecologically available water: A case study in the Upper Missouri Headwaters, Montana, United States
Climate vulnerability for a desert fish: Integrating hydrologic exposures, adaptive capacity, and growth potential
Fishes of Harney Basin revisited: An assessment of the distribution of native and nonnative fishes over a half century
Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection
Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends
Non-USGS Publications**
**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.
Science and Products
Aquatic & Landscape Ecology Research Team (FRESC)
Integrating stream gage records, water presence observations, and models to improve hydrologic prediction in stream networks
Updated classifications of flow permanence on streams in the Colville National Forest
USGS science supporting the Elwha River Restoration Project
Controls on Habitat for Native Lampreys in the Umpqua River Basin
Controls on Salmon and Lamprey Habitat along the Siletz River
Probability of Streamflow Permanence (PROSPER)
Aquatic & Landscape Ecology Research Team (FRESC)
Threat of Invasives to Native Species and Ecosystems
Restoration and Management of Aquatic Ecosystems
Climate and Aquatic Ecosystems
Life Histories of Aquatic Species
Landscape Ecology of Aquatic Ecosystems
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.
FLOwPER Database: StreamFLOw PERmanence field observations, Jan 2021 - Dec 2021
Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020
Simulated growth potential of redband trout in the Donner und Blitzen River Basin, southeastern Oregon, using a bioenergetics model
Simulated streamflow and stream temperature in the Donner und Blitzen River Basin, southeastern Oregon, using the Precipitation-Runoff Modeling System (PRMS)
Fishes of the Harney Basin revisited: A contemporary assessment of the distribution of fish fauna throughout the Harney Basin from 1990 to 2019 (ver. 2.0, April 2022)
Air and stream temperature and pressure for HJ Andrews Experimental Forest, Western Oregon, 2020
Stream Temperature in the Donner und Blitzen basin, Southeastern Oregon, 2018-2021
Stream Temperature in the Northern Great Basin region of Southeastern Oregon, 2016-2021
FLOwPER Database: StreamFLOw PERmanence field observations, April 2020 - Nov 2020
Stream Temperature in the Lahontan Basin of Nevada and California, 2017-2019
Stream Temperature and Water Presence Models of Willow/Whitehorse and Willow/Rock Watersheds, Oregon and Nevada
FLOwPER Database: StreamFLOw PERmanence field observations, August 2019 - October 2019
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.
Few would believe the importance of freshwater mussels to scientists here in the Pacific Northwest. These little-known and often-ignored organisms may live for over a century on the bottoms of lakes, rivers, and streams. Freshwater mussels have a story to tell, and researchers have developed a way of ‘reading’ this story.
Few would believe the importance of freshwater mussels to scientists here in the Pacific Northwest. These little-known and often-ignored organisms may live for over a century on the bottoms of lakes, rivers, and streams. Freshwater mussels have a story to tell, and researchers have developed a way of ‘reading’ this story.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
A large cooperative project is taking place with Olympic National Park in the Elwha River in anticipation of removal of two dams. Restoration of the entire river to natural free flows will allow returning salmon access to historic spawning grounds.
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.
Assisted migration of coho salmon: Influences of passage and habitat availability on population dynamics
Restoring Pacific Lamprey in the Umpqua River Basin of Oregon: A workshop summary
The past, present, and a future for native charr in Japan
Working with people to create and apply science in bull trout conservation
Effects of culverts on habitat connectivity in streams—A science synthesis to inform National Environmental Policy Act analyses
Co-production of models to evaluate conservation alternatives for a threatened fish in a rapidly changing landscape
Reintroductions are one means of managing species distributions, but the feasibility of such efforts is uncertain. Here we consider reintroduction for threatened bull trout (Salvelinus confluentus) that currently occupy a small fraction of historically occupied habitats in the upper Klamath River basin owing to climate warming and human modifications of ecosystems. We engaged stakeholders across m
Acclimation capacity of critical thermal maximum varies among populations: Consequences for estimates of vulnerability
The patchwork governance of ecologically available water: A case study in the Upper Missouri Headwaters, Montana, United States
Climate vulnerability for a desert fish: Integrating hydrologic exposures, adaptive capacity, and growth potential
Fishes of Harney Basin revisited: An assessment of the distribution of native and nonnative fishes over a half century
Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection
Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends
Non-USGS Publications**
**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.