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
M.S. 1998. Biology, Wayne State University, Detroit, MI
B.S. 1993. Biology, Wayne State University, Detroit, MI
Affiliations and Memberships*
2015 to Present – Scientific Advisory Board, Mactaquac Aquatic Ecosystem Study
2012 to Present – Science Liaison, Board of Directors, Nature Bridge at Olympic National Park
1998 to Present – Ecological Society of America
2008 to Present – Northwest Scientific Association
2010 to Present – American Fisheries Society
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
Science and Products
Elwha River dam removal: A major opportunity for salmon and steelhead recolonization
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
USGS River Ecosystem Modeling: Where Are We, How Did We Get Here, and Where Are We Going?
Species richness, equitability, and abundance of ants in disturbed landscapes
Linking habitat quality with trophic performance of steelhead along forest gradients in the South Fork Trinity River Watershed, California
Ant community composition across a gradient of disturbed military landscapes at Fort Benning, Georgia
Ecology in the information age: Patterns of use and attrition rates of internet-based citations in ESA journals, 1997–2005
Baseline studies in the Elwha River ecosystem prior to dam removal: Introduction to the special issue
Benthic invertebrates and periphyton in the Elwha river basin: Current conditions and predicted response to dam removal
Predicting recolonization patterns and interactions between potamodromous and anadromous salmonids in response to dam removal in the Elwha River, Washington State, USA
Influence of dams on river-floodplain dynamics in the Elwha River, Washington
Salmon, forests, and pre-restoration assessment using stable isotope analysis on riparian vegetation
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.
Science and Products
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Filter Total Items: 86
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 historical oAuthorsGeorge R. Pess, Samuel J. Brenkman, Gary A. Winans, Michael L. McHenry, Jeffrey J. Duda, Timothy J. BeechieFaunal 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 in northwAuthorsH.H. Welsh, G.R. Hodgson, J.J. Duda, J.M. EmlenUSGS 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 Federal landAuthorsLeanne Hanson, Robin Schrock, Terry Waddle, Jeffrey J. Duda, Bill LellisSpecies 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 (military trainiAuthorsJ.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. BalbachLinking 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 relative effectAuthorsSarah G. McCarthy, Jeffrey J. Duda, John M. Emlen, Garth R. Hodgson, David A. BeauchampAnt community composition across a gradient of disturbed military landscapes at Fort Benning, Georgia
Military training, soil texture, and ground cover influence ant communities at Fort Benning, a military installation in west-central Georgia. We sampled 81,237 ground-dwelling ants (47 species in 20 genera) with pitfall traps at 40 sites on a continuum from nearly pristine forest to highly disturbed training areas. We also measured 15 environmental variables related to vegetation and soil. Sites dAuthorsJ.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. BalbachEcology 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 paper was sAuthorsJeffrey J. Duda, Richard J. CampBaseline studies in the Elwha River ecosystem prior to dam removal: Introduction to the special issue
The planned removal of two dams that have been in place for over 95 years on the Elwha River provides a unique opportunity to study dam removal effects. Among the largest dams ever considered for removal, this project is compelling because 83% of the watershed lies undisturbed in Olympic National Park. Eighteen million cubic meters of sediment have accumulated in and will be released from the reseAuthorsJeffrey J. Duda, Jerry Freilich, Edward G. SchreinerBenthic invertebrates and periphyton in the Elwha river basin: Current conditions and predicted response to dam removal
The impending removal of two dams on the Elwha River in Washington State offers a unique opportunity to study ecosystem restoration at a watershed scale. We examine how periphyton and benthic invertebrate assemblages vary across regulated and unregulated sections of the Elwha River and across different habitat types, and establish baseline data for tracking future changes following dam removal. WeAuthorsS.A. Morley, J.J. Duda, H.J. Coe, K.K. Kloehn, M.L. McHenryPredicting recolonization patterns and interactions between potamodromous and anadromous salmonids in response to dam removal in the Elwha River, Washington State, USA
The restoration of salmonids in the Elwha River following dam removal will cause interactions between anadromous and potamodromous forms as recolonization occurs in upstream and downstream directions. Anadromous salmonids are expected to recolonize historic habitats, and rainbow trout (Oncorhynchus mykiss) and bull trout (Salvelinus confluentus) isolated above the dams for 90 years are expected toAuthorsS.J. Brenkman, G.R. Pess, C.E. Torgersen, K.K. Kloehn, J.J. Duda, S.C. CorbettInfluence of dams on river-floodplain dynamics in the Elwha River, Washington
The Elwha dam removal project presents an ideal opportunity to study how historic reduction and subsequent restoration of sediment supply alter river-floodplain dynamics in a large, forested river floodplain. We used remote sensing and onsite data collection to establish a historical record of floodplain dynamics and a baseline of current conditions. Analysis was based on four river reaches, threeAuthorsK.K. Kloehn, T.J. Beechie, S.A. Morley, H.J. Coe, J.J. DudaSalmon, forests, and pre-restoration assessment using stable isotope analysis on riparian vegetation
No abstract available.AuthorsJ. M. Minion, D. Barry, L. Urbanec, A. Gray, J.J. DudaNon-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.
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*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