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
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Filter Total Items: 92
Nearshore biological communities prior to the removal of the Elwha River dams: Chapter 6 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Nearshore biological communities prior to the removal of the Elwha River dams: Chapter 6 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
Increases in sediment delivery to coastal waters are expected following removal of dams on the Elwha River, Washington, potentially increasing sediment deposition on the seafloor and suspended sediment in the water column. Biological communities inhabiting shallow, subtidal depths (3–18 m) near the mouth of the Elwha River, between the west end of Freshwater Bay and the base of Ediz Hook...
Authors
Stephen P. Rubin, Ian M. Miller, Nancy Elder, Reginald R. Reisenbichler, Jeffrey J. Duda
Geomorphology of the Elwha River and its Delta: Chapter 3 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Geomorphology of the Elwha River and its Delta: Chapter 3 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
The removal of two dams on the Elwha River will introduce massive volumes of sediment to the river, and this increase in sediment supply in the river will likely modify the shapes and forms of the river and coastal landscape downstream of the dams. This chapter provides the geologic and geomorphologic background of the Olympic Peninsula and the Elwha River with emphasis on the present...
Authors
Jonathan A. Warrick, Amy E. Draut, Michael L. McHenry, Ian M. Miller, Christopher S. Magirl, Matthew M. Beirne, Andrew W. Stevens, Joshua B. Logan
Establishing spatial trends in water chemistry and stable isotopes (δ15N and δ13C) in the Elwha River prior to dam removal and salmon recolonization Establishing spatial trends in water chemistry and stable isotopes (δ15N and δ13C) in the Elwha River prior to dam removal and salmon recolonization
Two high-head dams on the Elwha River in Washington State (USA) have changed the migratory patterns of resident and anadromous fish, limiting Pacific salmon to the lower 7.9 km of a river that historically supported large Pacific salmon runs. To document the effects of the dams prior to their removal, we measured carbon and nitrogen stable isotope ratios of primary producers, benthic
Authors
J.J. Duda, H.J. Coe, S.A. Morley, K.K. Kloehn
Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
During and after the planned incremental removal of two large, century-old concrete dams between 2011 and 2014, the sediment-transport regime in the lower Elwha River of western Washington will initially spike above background levels and then return to pre-dam conditions some years after complete dam removal. Measurements indicate the upper reaches of the steep-gradient Elwha River...
Authors
Christiana R. Czuba, Timothy J. Randle, Jennifer A. Bountry, Christopher S. Magirl, Jonathan A. Czuba, Christopher A. Curran, Christopher P. Konrad
Sediment management strategies associated with dam removal in the State of Washington Sediment management strategies associated with dam removal in the State of Washington
Different removal strategies are described for dams in three diverse drainage basins (Wind River, White Salmon River, and Elwha River basins) in the State of Washington (USA). The comparisons between the strategies offer the opportunity to track the effects of sediment resulting from dam decommissioning in the Pacific Northwest and to determine possible effects on socio-economically...
Authors
C. S. Magirl, P.J. Connolly, B. Coffin, J.J. Duda, A.E. Draut
Extended abstracts from the Coastal Habitats in Puget Sound (CHIPS) 2006 Workshop Extended abstracts from the Coastal Habitats in Puget Sound (CHIPS) 2006 Workshop
Puget Sound is the second largest estuary in the United States. Its unique geology, climate, and nutrient-rich waters produce and sustain biologically productive coastal habitats. These same natural characteristics also contribute to a high quality of life that has led to a significant growth in human population and associated development. This population growth, and the accompanying...
Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape
Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ecological services. We sampled 60 headwater tributaries in the South Fork Trinity River, a 2,430 km2, mostly forested, multiple-use watershed...
Authors
H.H. Welsh, G.R. Hodgson, J.J. Duda, J.M. Emlen
Elwha River dam removal: A major opportunity for salmon and steelhead recolonization Elwha River dam removal: A major opportunity for salmon and steelhead recolonization
In this in-depth paper, authors George R. Pess, Gary A. Winans and Timothy J. Beechie of the NOAA Fisheries, Northwest Fisheries Science Center in Seattle, Samuel J. Brenkman of the National Park Service, Olympic National Park, Michael L. McHenry of the Lower Elwha Klallam Tribe and Jeffrey J. Duda of the U.S. Geological Survey, Western Fisheries Research Center in Seattle, provide an...
Authors
George R. Pess, Samuel J. Brenkman, Gary A. Winans, Michael L. McHenry, Jeffrey J. Duda, Timothy J. Beechie
USGS River Ecosystem Modeling: Where Are We, How Did We Get Here, and Where Are We Going? USGS River Ecosystem Modeling: Where Are We, How Did We Get Here, and Where Are We Going?
This report developed as an outcome of the USGS River Ecosystem Modeling Work Group, convened on February 11, 2008 as a preconference session to the second USGS Modeling Conference in Orange Beach, Ala. Work Group participants gained an understanding of the types of models currently being applied to river ecosystem studies within the USGS, learned how model outputs are being used by a...
Authors
Leanne Hanson, Robin Schrock, Terry Waddle, Jeffrey J. Duda, Bill Lellis
Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River Watershed, California Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River Watershed, California
We examined invertebrate prey, fish diet, and energy assimilation in relation to habitat variation for steelhead Oncorhynchus mykiss (anadromous rainbow trout) and rainbow trout in nine low-order tributaries of the South Fork Trinity River, northern California. These streams spanned a range of environmental conditions, which allowed us to use bioenergetics modeling to determine the...
Authors
Sarah G. McCarthy, Jeffrey J. Duda, John M. Emlen, Garth R. Hodgson, David A. Beauchamp
Species richness, equitability, and abundance of ants in disturbed landscapes Species richness, equitability, and abundance of ants in disturbed landscapes
Ants are used as indicators of environmental change in disturbed landscapes, often without adequate understanding of their response to disturbance. Ant communities in the southeastern United States displayed a hump-backed species richness curve against an index of landscape disturbance. Forty sites at Fort Benning, in west-central Georgia, covered a spectrum of habitat disturbance...
Authors
J.H. Graham, A.J. Krzysik, D.A. Kovacic, J.J. Duda, D.C. Freeman, J.M. Emlen, J.C. Zak, W.R. Long, M.P. Wallace, C. Chamberlin-Graham, J.P. Nutter, H.E. Balbach
Ecology in the information age: Patterns of use and attrition rates of internet-based citations in ESA journals, 1997–2005 Ecology in the information age: Patterns of use and attrition rates of internet-based citations in ESA journals, 1997–2005
As the amount of information available on the internet has increased, so too has the number of citations to network-accessible information in scholarly research. We searched all papers in four Ecological Society of America journals from 1997 to 2005 for articles containing a citation to material on the internet. We then tested the links to determine whether the information cited in the...
Authors
Jeffrey J. Duda, Richard J. Camp
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
Nearshore biological communities prior to the removal of the Elwha River dams: Chapter 6 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Nearshore biological communities prior to the removal of the Elwha River dams: Chapter 6 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
Increases in sediment delivery to coastal waters are expected following removal of dams on the Elwha River, Washington, potentially increasing sediment deposition on the seafloor and suspended sediment in the water column. Biological communities inhabiting shallow, subtidal depths (3–18 m) near the mouth of the Elwha River, between the west end of Freshwater Bay and the base of Ediz Hook...
Authors
Stephen P. Rubin, Ian M. Miller, Nancy Elder, Reginald R. Reisenbichler, Jeffrey J. Duda
Geomorphology of the Elwha River and its Delta: Chapter 3 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Geomorphology of the Elwha River and its Delta: Chapter 3 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
The removal of two dams on the Elwha River will introduce massive volumes of sediment to the river, and this increase in sediment supply in the river will likely modify the shapes and forms of the river and coastal landscape downstream of the dams. This chapter provides the geologic and geomorphologic background of the Olympic Peninsula and the Elwha River with emphasis on the present...
Authors
Jonathan A. Warrick, Amy E. Draut, Michael L. McHenry, Ian M. Miller, Christopher S. Magirl, Matthew M. Beirne, Andrew W. Stevens, Joshua B. Logan
Establishing spatial trends in water chemistry and stable isotopes (δ15N and δ13C) in the Elwha River prior to dam removal and salmon recolonization Establishing spatial trends in water chemistry and stable isotopes (δ15N and δ13C) in the Elwha River prior to dam removal and salmon recolonization
Two high-head dams on the Elwha River in Washington State (USA) have changed the migratory patterns of resident and anadromous fish, limiting Pacific salmon to the lower 7.9 km of a river that historically supported large Pacific salmon runs. To document the effects of the dams prior to their removal, we measured carbon and nitrogen stable isotope ratios of primary producers, benthic
Authors
J.J. Duda, H.J. Coe, S.A. Morley, K.K. Kloehn
Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
During and after the planned incremental removal of two large, century-old concrete dams between 2011 and 2014, the sediment-transport regime in the lower Elwha River of western Washington will initially spike above background levels and then return to pre-dam conditions some years after complete dam removal. Measurements indicate the upper reaches of the steep-gradient Elwha River...
Authors
Christiana R. Czuba, Timothy J. Randle, Jennifer A. Bountry, Christopher S. Magirl, Jonathan A. Czuba, Christopher A. Curran, Christopher P. Konrad
Sediment management strategies associated with dam removal in the State of Washington Sediment management strategies associated with dam removal in the State of Washington
Different removal strategies are described for dams in three diverse drainage basins (Wind River, White Salmon River, and Elwha River basins) in the State of Washington (USA). The comparisons between the strategies offer the opportunity to track the effects of sediment resulting from dam decommissioning in the Pacific Northwest and to determine possible effects on socio-economically...
Authors
C. S. Magirl, P.J. Connolly, B. Coffin, J.J. Duda, A.E. Draut
Extended abstracts from the Coastal Habitats in Puget Sound (CHIPS) 2006 Workshop Extended abstracts from the Coastal Habitats in Puget Sound (CHIPS) 2006 Workshop
Puget Sound is the second largest estuary in the United States. Its unique geology, climate, and nutrient-rich waters produce and sustain biologically productive coastal habitats. These same natural characteristics also contribute to a high quality of life that has led to a significant growth in human population and associated development. This population growth, and the accompanying...
Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape
Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ecological services. We sampled 60 headwater tributaries in the South Fork Trinity River, a 2,430 km2, mostly forested, multiple-use watershed...
Authors
H.H. Welsh, G.R. Hodgson, J.J. Duda, J.M. Emlen
Elwha River dam removal: A major opportunity for salmon and steelhead recolonization Elwha River dam removal: A major opportunity for salmon and steelhead recolonization
In this in-depth paper, authors George R. Pess, Gary A. Winans and Timothy J. Beechie of the NOAA Fisheries, Northwest Fisheries Science Center in Seattle, Samuel J. Brenkman of the National Park Service, Olympic National Park, Michael L. McHenry of the Lower Elwha Klallam Tribe and Jeffrey J. Duda of the U.S. Geological Survey, Western Fisheries Research Center in Seattle, provide an...
Authors
George R. Pess, Samuel J. Brenkman, Gary A. Winans, Michael L. McHenry, Jeffrey J. Duda, Timothy J. Beechie
USGS River Ecosystem Modeling: Where Are We, How Did We Get Here, and Where Are We Going? USGS River Ecosystem Modeling: Where Are We, How Did We Get Here, and Where Are We Going?
This report developed as an outcome of the USGS River Ecosystem Modeling Work Group, convened on February 11, 2008 as a preconference session to the second USGS Modeling Conference in Orange Beach, Ala. Work Group participants gained an understanding of the types of models currently being applied to river ecosystem studies within the USGS, learned how model outputs are being used by a...
Authors
Leanne Hanson, Robin Schrock, Terry Waddle, Jeffrey J. Duda, Bill Lellis
Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River Watershed, California Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River Watershed, California
We examined invertebrate prey, fish diet, and energy assimilation in relation to habitat variation for steelhead Oncorhynchus mykiss (anadromous rainbow trout) and rainbow trout in nine low-order tributaries of the South Fork Trinity River, northern California. These streams spanned a range of environmental conditions, which allowed us to use bioenergetics modeling to determine the...
Authors
Sarah G. McCarthy, Jeffrey J. Duda, John M. Emlen, Garth R. Hodgson, David A. Beauchamp
Species richness, equitability, and abundance of ants in disturbed landscapes Species richness, equitability, and abundance of ants in disturbed landscapes
Ants are used as indicators of environmental change in disturbed landscapes, often without adequate understanding of their response to disturbance. Ant communities in the southeastern United States displayed a hump-backed species richness curve against an index of landscape disturbance. Forty sites at Fort Benning, in west-central Georgia, covered a spectrum of habitat disturbance...
Authors
J.H. Graham, A.J. Krzysik, D.A. Kovacic, J.J. Duda, D.C. Freeman, J.M. Emlen, J.C. Zak, W.R. Long, M.P. Wallace, C. Chamberlin-Graham, J.P. Nutter, H.E. Balbach
Ecology in the information age: Patterns of use and attrition rates of internet-based citations in ESA journals, 1997–2005 Ecology in the information age: Patterns of use and attrition rates of internet-based citations in ESA journals, 1997–2005
As the amount of information available on the internet has increased, so too has the number of citations to network-accessible information in scholarly research. We searched all papers in four Ecological Society of America journals from 1997 to 2005 for articles containing a citation to material on the internet. We then tested the links to determine whether the information cited in the...
Authors
Jeffrey J. Duda, Richard J. Camp
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