Jeffrey Duda
I am a Research Ecologist with the U.S. Geological Survey's Western Fisheries Research Center, stationed in Seattle, Washington.
Research Interests:
My research assignment is to develop and execute a research program focused upon priorities of the USGS Ecosystems mission area, in particular those projects that address complex natural resource issues related to land use, habitat restoration, and species recovery. I have had the pleasure to work in diverse ecosystems and ecoregions throughout the United States, on lands and waters contained in both National Parks and military installations. I have also worked across a range of biological scales, from single species to entire communities.
Over the past decade, I have focused much attention on studying the ecological outcomes of dam removal, especially the historic project on the Elwha River. This involved removal of two long-standing dams, with a major goal of restoring the ecosystem and the native anadromous fish populations that once thrived in the river. Working with a multidisciplinary team within the USGS, as well as strong collaborations with partners like NPS, NOAA, FWS, and the Lower Elwha Klallam Tribe, we have developed a portfolio of long-term data sets on physical and biological attributes of the Elwha River before and after dam removal.
Recently I was a member of a dam removal science working group at the USGS John Wesley Powell Center for Analysis and Synthesis. We worked to understand patterns of dam removal science, and to synthesize what is known scientifically about this emerging field. This led to development of the USGS Dam Removal Information Portal, an interactive online tool for visualizing and storing scientific studies associated with dam removals nationwide.
Professional Experience
2004 to Present – Research Ecologist, U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA
1998-2004 – Ecologist, U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA
1993-1995 – Biological Technician, U.S. Army Corps of Engineers, Construction Engineering Research Laboratory
Education and Certifications
Ecological Society of America, Certified Senior Ecologist, 2018-present
M.S. 1998. Biology, Wayne State University, Detroit, MI
B.S. 1993. Biology, Wayne State University, Detroit, MI
Affiliations and Memberships*
1998 to Present – Ecological Society of America
Honorary Lifetime Member – Northwest Scientific Association
2010 to Present – American Fisheries Society
2022 to Present – Sigma Xi
2015 to 2020 – Scientific Advisory Board, Mactaquac Aquatic Ecosystem Study
2012 to 2021 – Science Liaison, Board of Directors, Nature Bridge at Olympic National Park
Honors and Awards
2014 – NOAA Restoration Center, Excellence in Restoration Award
2013 – Northwest Scientific Association, Honorary Lifetime Membership Award
2011 – U.S. Department of the Interior, Superior Service Award
2018 – USGS Unit Award for Excellence of Service, Elwha River Science Team
Science and Products
Filter Total Items: 15
No Result Found
Filter Total Items: 92
Multiscale analysis of river networks using the R package linbin Multiscale analysis of river networks using the R package linbin
Analytical tools are needed in riverine science and management to bridge the gap between GIS and statistical packages that were not designed for the directional and dendritic structure of streams. We introduce linbin, an R package developed for the analysis of riverscapes at multiple scales. With this software, riverine data on aquatic habitat and species distribution can be scaled and...
Authors
Ethan Welty, Christian Torgersen, Samuel Brenkman, Jeffrey J. Duda, Jonathan B. Armstrong
Rapid water quality change in the Elwha River estuary complex during dam removal Rapid water quality change in the Elwha River estuary complex during dam removal
Dam removal in the United States is increasing as a result of structural concerns, sedimentation of reservoirs, and declining riverine ecosystem conditions. The removal of the 32 m Elwha and 64 m Glines Canyon dams from the Elwha River in Washington, U.S.A., was the largest dam removal project in North American history. During the 3 yr of dam removal—from September 2011 to August 2014...
Authors
Melissa Foley, Jeffrey Duda, Matthew M. Beirne, Rebecca Paradis, Andrew Ritchie, Jonathan A. Warrick
1000 dams down and counting 1000 dams down and counting
Forty years ago, the demolition of large dams was mostly fiction, notably plotted in Edward Abbey's novel The Monkey Wrench Gang. Its 1975 publication roughly coincided with the end of large-dam construction in the United States. Since then, dams have been taken down in increasing numbers as they have filled with sediment, become unsafe or inefficient, or otherwise outlived their...
Authors
James E. O'Connor, Jeff J. Duda, Gordon E. Grant
By
Ecosystems Mission Area, Geology, Energy, and Minerals Mission Area, Natural Hazards Mission Area, Energy Resources Program, Groundwater and Streamflow Information Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Volcano Hazards Program, Geology, Minerals, Energy, and Geophysics Science Center, John Wesley Powell Center for Analysis and Synthesis, Volcano Science Center, Western Fisheries Research Center
Large-scale dam removal on the Elwha River, Washington, USA: river channel and floodplain geomorphic change Large-scale dam removal on the Elwha River, Washington, USA: river channel and floodplain geomorphic change
A substantial increase in fluvial sediment supply relative to transport capacity causes complex, large-magnitude changes in river and floodplain morphology downstream. Although sedimentary and geomorphic responses to sediment pulses are a fundamental part of landscape evolution, few opportunities exist to quantify those processes over field scales. We investigated the downstream effects...
Authors
Amy E. East, George Pess, Jennifer Bountry, Christopher Magirl, Andrew C. Ritchie, Joshua Logan, Timothy Randle, Mark Mastin, Justin Minear, Jeffrey J. Duda, Martin Liermann, Michael McHenry, Timothy Beechie, Patrick Shafroth
Large-scale dam removal on the Elwha River, Washington, USA: fluvial sediment load Large-scale dam removal on the Elwha River, Washington, USA: fluvial sediment load
The Elwha River restoration project, in Washington State, includes the largest dam-removal project in United States history to date. Starting September 2011, two nearly century-old dams that collectively contained 21 ± 3 million m3 of sediment were removed over the course of three years with a top-down deconstruction strategy designed to meter the release of a portion of the dam-trapped...
Authors
Christopher Magirl, Robert Hilldale, Christopher Curran, Jeffrey J. Duda, Timothy D. Straub, Marian Domanski, James R. Foreman
Large-scale dam removal on the Elwha River, Washington, USA: source-to-sink sediment budget and synthesis Large-scale dam removal on the Elwha River, Washington, USA: source-to-sink sediment budget and synthesis
Understanding landscape responses to sediment supply changes constitutes a fundamental part of many problems in geomorphology, but opportunities to study such processes at field scales are rare. The phased removal of two large dams on the Elwha River, Washington, exposed 21 ± 3 million m3, or ~ 30 million tonnes (t), of sediment that had been deposited in the two former reservoirs...
Authors
Jonathan A. Warrick, Jennifer Bountry, Amy E. East, Christopher Magirl, Timothy Randle, Guy Gelfenbaum, Andrew Ritchie, George Pess, Vivian Leung, Jeff J. Duda
A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington
As a means to increase visitation, early fisheries management in the National Park Service (NPS) promoted sport harvest and hatchery supplementation. Today, NPS management objectives focus on the preservation of native fish. We summarized management regimes of Olympic National Park's Lake Crescent, which included decades of liberal sport harvest and hatchery releases of 14.3 million...
Authors
Samuel Brenkman, Jeffrey J. Duda, Philip Kennedy, Bruce Baker
Guidelines for monitoring and adaptively managing restoration of Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) on the Elwha River Guidelines for monitoring and adaptively managing restoration of Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) on the Elwha River
As of January, 2014, the removal of the Elwha and Glines Canyon dams on the Elwha River, Washington, represents the largest dam decommissioning to date in the United States. Dam removal is the single largest step in meeting the goals of the Elwha River Ecosystem and Fisheries Restoration Act of 1992 (The Elwha Act) — full restoration of the Elwha River ecosystem and its native anadromous...
Authors
R.J. Peters, J.J. Duda, G.R. Pess, M. Zimmerman, P. Crain, Z. Hughes, A. Wilson, M.C. Liermann, S.A. Morley, J. McMillan, K. Denton, K. Warheit
Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world
Rapid environmental change in freshwater ecosystems has created a need to understand the interactive effects of multiple stressors, with temperature and invasive predators identified as key threats to imperiled fish species. We tested the separate and interactive effects of water temperature and predation by non-native smallmouth bass (Micropterus dolomieu) on the lethal (mortality) and...
Authors
Lauren Kuehne, Julian D. Olden, Jeffrey J. Duda
River turbidity and sediment loads during dam removal River turbidity and sediment loads during dam removal
Dam decommissioning has become an important means for removing unsafe or obsolete dams and for restoring natural fluvial processes, including discharge regimes, sediment transport, and ecosystem connectivity [Doyle et al., 2003]. The largest dam-removal project in history began in September 2011 on the Elwha River of Washington State (Figure 1a). The project, which aims to restore the...
Authors
Jonathan A. Warrick, Jeffrey J. Duda, Christopher Magirl, Chris Curran
The effects of drought and disturbance on the growth and developmental instability of loblolly pine (Pinus taeda L.) The effects of drought and disturbance on the growth and developmental instability of loblolly pine (Pinus taeda L.)
Ecological indicators provide early warning of adverse environmental change, helping land managers adaptively manage their resources while minimizing costly remediation. In 1999 and 2000, we studied two such indicators, growth and developmental instability, of loblolly pine (Pinus taeda L.) influenced by mechanized infantry training at Fort Benning, Georgia. Disturbed areas were used for...
Authors
John Graham, Jeffrey Duda, Michelle Brown, Stanley Kitchen, John Emlen, Jagadish Malol, Elizabeth Bankstahl, Anthony Krzysik, Harold Balbach, D. Freeman
A riverscape perspective of Pacific salmonids and aquatic habitats prior to large-scale dam removal in the Elwha River, Washington, USA A riverscape perspective of Pacific salmonids and aquatic habitats prior to large-scale dam removal in the Elwha River, Washington, USA
Dam removal has been increasingly proposed as a river restoration technique. In 2011, two large hydroelectric dams will be removed from Washington State’s Elwha River. Ten anadromous fish populations are expected to recolonise historical habitats after dam removal. A key to understanding watershed recolonisation is the collection of spatially continuous information on fish and aquatic...
Authors
S.J. Brenkman, J.J. Duda, C.E. Torgersen, E. Welty, G.R. Pess, R. Peters, M.L. McHenry
Non-USGS Publications**
Duda, J.J., and A.J. Krzysik. 1998. Radiotelemetry study of a desert tortoise population: Sand Hill Training Area, Marine Corps Air Ground Combat Center, Twentynine Palms, California. U.S. Army Construction Engineering Research Laboratories Technical Report 98/39. 75 p.
Duda, J.J. 1998. Home range, burrow use, and activity patterns of the desert tortoise (Gopherus agassizii) in the south-central Mojave Desert. M.S. Thesis. Wayne State University, Detroit, MI, 60 p.
**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.
Science and Products
Filter Total Items: 15
No Result Found
Filter Total Items: 92
Multiscale analysis of river networks using the R package linbin Multiscale analysis of river networks using the R package linbin
Analytical tools are needed in riverine science and management to bridge the gap between GIS and statistical packages that were not designed for the directional and dendritic structure of streams. We introduce linbin, an R package developed for the analysis of riverscapes at multiple scales. With this software, riverine data on aquatic habitat and species distribution can be scaled and...
Authors
Ethan Welty, Christian Torgersen, Samuel Brenkman, Jeffrey J. Duda, Jonathan B. Armstrong
Rapid water quality change in the Elwha River estuary complex during dam removal Rapid water quality change in the Elwha River estuary complex during dam removal
Dam removal in the United States is increasing as a result of structural concerns, sedimentation of reservoirs, and declining riverine ecosystem conditions. The removal of the 32 m Elwha and 64 m Glines Canyon dams from the Elwha River in Washington, U.S.A., was the largest dam removal project in North American history. During the 3 yr of dam removal—from September 2011 to August 2014...
Authors
Melissa Foley, Jeffrey Duda, Matthew M. Beirne, Rebecca Paradis, Andrew Ritchie, Jonathan A. Warrick
1000 dams down and counting 1000 dams down and counting
Forty years ago, the demolition of large dams was mostly fiction, notably plotted in Edward Abbey's novel The Monkey Wrench Gang. Its 1975 publication roughly coincided with the end of large-dam construction in the United States. Since then, dams have been taken down in increasing numbers as they have filled with sediment, become unsafe or inefficient, or otherwise outlived their...
Authors
James E. O'Connor, Jeff J. Duda, Gordon E. Grant
By
Ecosystems Mission Area, Geology, Energy, and Minerals Mission Area, Natural Hazards Mission Area, Energy Resources Program, Groundwater and Streamflow Information Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Volcano Hazards Program, Geology, Minerals, Energy, and Geophysics Science Center, John Wesley Powell Center for Analysis and Synthesis, Volcano Science Center, Western Fisheries Research Center
Large-scale dam removal on the Elwha River, Washington, USA: river channel and floodplain geomorphic change Large-scale dam removal on the Elwha River, Washington, USA: river channel and floodplain geomorphic change
A substantial increase in fluvial sediment supply relative to transport capacity causes complex, large-magnitude changes in river and floodplain morphology downstream. Although sedimentary and geomorphic responses to sediment pulses are a fundamental part of landscape evolution, few opportunities exist to quantify those processes over field scales. We investigated the downstream effects...
Authors
Amy E. East, George Pess, Jennifer Bountry, Christopher Magirl, Andrew C. Ritchie, Joshua Logan, Timothy Randle, Mark Mastin, Justin Minear, Jeffrey J. Duda, Martin Liermann, Michael McHenry, Timothy Beechie, Patrick Shafroth
Large-scale dam removal on the Elwha River, Washington, USA: fluvial sediment load Large-scale dam removal on the Elwha River, Washington, USA: fluvial sediment load
The Elwha River restoration project, in Washington State, includes the largest dam-removal project in United States history to date. Starting September 2011, two nearly century-old dams that collectively contained 21 ± 3 million m3 of sediment were removed over the course of three years with a top-down deconstruction strategy designed to meter the release of a portion of the dam-trapped...
Authors
Christopher Magirl, Robert Hilldale, Christopher Curran, Jeffrey J. Duda, Timothy D. Straub, Marian Domanski, James R. Foreman
Large-scale dam removal on the Elwha River, Washington, USA: source-to-sink sediment budget and synthesis Large-scale dam removal on the Elwha River, Washington, USA: source-to-sink sediment budget and synthesis
Understanding landscape responses to sediment supply changes constitutes a fundamental part of many problems in geomorphology, but opportunities to study such processes at field scales are rare. The phased removal of two large dams on the Elwha River, Washington, exposed 21 ± 3 million m3, or ~ 30 million tonnes (t), of sediment that had been deposited in the two former reservoirs...
Authors
Jonathan A. Warrick, Jennifer Bountry, Amy E. East, Christopher Magirl, Timothy Randle, Guy Gelfenbaum, Andrew Ritchie, George Pess, Vivian Leung, Jeff J. Duda
A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington
As a means to increase visitation, early fisheries management in the National Park Service (NPS) promoted sport harvest and hatchery supplementation. Today, NPS management objectives focus on the preservation of native fish. We summarized management regimes of Olympic National Park's Lake Crescent, which included decades of liberal sport harvest and hatchery releases of 14.3 million...
Authors
Samuel Brenkman, Jeffrey J. Duda, Philip Kennedy, Bruce Baker
Guidelines for monitoring and adaptively managing restoration of Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) on the Elwha River Guidelines for monitoring and adaptively managing restoration of Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss) on the Elwha River
As of January, 2014, the removal of the Elwha and Glines Canyon dams on the Elwha River, Washington, represents the largest dam decommissioning to date in the United States. Dam removal is the single largest step in meeting the goals of the Elwha River Ecosystem and Fisheries Restoration Act of 1992 (The Elwha Act) — full restoration of the Elwha River ecosystem and its native anadromous...
Authors
R.J. Peters, J.J. Duda, G.R. Pess, M. Zimmerman, P. Crain, Z. Hughes, A. Wilson, M.C. Liermann, S.A. Morley, J. McMillan, K. Denton, K. Warheit
Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world
Rapid environmental change in freshwater ecosystems has created a need to understand the interactive effects of multiple stressors, with temperature and invasive predators identified as key threats to imperiled fish species. We tested the separate and interactive effects of water temperature and predation by non-native smallmouth bass (Micropterus dolomieu) on the lethal (mortality) and...
Authors
Lauren Kuehne, Julian D. Olden, Jeffrey J. Duda
River turbidity and sediment loads during dam removal River turbidity and sediment loads during dam removal
Dam decommissioning has become an important means for removing unsafe or obsolete dams and for restoring natural fluvial processes, including discharge regimes, sediment transport, and ecosystem connectivity [Doyle et al., 2003]. The largest dam-removal project in history began in September 2011 on the Elwha River of Washington State (Figure 1a). The project, which aims to restore the...
Authors
Jonathan A. Warrick, Jeffrey J. Duda, Christopher Magirl, Chris Curran
The effects of drought and disturbance on the growth and developmental instability of loblolly pine (Pinus taeda L.) The effects of drought and disturbance on the growth and developmental instability of loblolly pine (Pinus taeda L.)
Ecological indicators provide early warning of adverse environmental change, helping land managers adaptively manage their resources while minimizing costly remediation. In 1999 and 2000, we studied two such indicators, growth and developmental instability, of loblolly pine (Pinus taeda L.) influenced by mechanized infantry training at Fort Benning, Georgia. Disturbed areas were used for...
Authors
John Graham, Jeffrey Duda, Michelle Brown, Stanley Kitchen, John Emlen, Jagadish Malol, Elizabeth Bankstahl, Anthony Krzysik, Harold Balbach, D. Freeman
A riverscape perspective of Pacific salmonids and aquatic habitats prior to large-scale dam removal in the Elwha River, Washington, USA A riverscape perspective of Pacific salmonids and aquatic habitats prior to large-scale dam removal in the Elwha River, Washington, USA
Dam removal has been increasingly proposed as a river restoration technique. In 2011, two large hydroelectric dams will be removed from Washington State’s Elwha River. Ten anadromous fish populations are expected to recolonise historical habitats after dam removal. A key to understanding watershed recolonisation is the collection of spatially continuous information on fish and aquatic...
Authors
S.J. Brenkman, J.J. Duda, C.E. Torgersen, E. Welty, G.R. Pess, R. Peters, M.L. McHenry
Non-USGS Publications**
Duda, J.J., and A.J. Krzysik. 1998. Radiotelemetry study of a desert tortoise population: Sand Hill Training Area, Marine Corps Air Ground Combat Center, Twentynine Palms, California. U.S. Army Construction Engineering Research Laboratories Technical Report 98/39. 75 p.
Duda, J.J. 1998. Home range, burrow use, and activity patterns of the desert tortoise (Gopherus agassizii) in the south-central Mojave Desert. M.S. Thesis. Wayne State University, Detroit, MI, 60 p.
**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.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government