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.
Jeffrey Duda
Biography
Education:
M.S. 1998. Biology, Wayne State University, Detroit, MI
B.S. 1993. Biology, Wayne State University, Detroit, MI
Research Interests:
I am a Research Ecologist with the U.S. Geological Survey's Western Fisheries Research Center, stationed in Seattle, Washington. 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.
Publications:
Bellmore, J.R., G.R. Pess, J.J. Duda, J.E. O’Connor, A.E. East, M.M. Foley, A.C. Wilcox, J.J. Major, P.B. Shafroth, S.A. Morley, C.S. Magirl, C.W. Anderson, J.E. Evans, C.E. Torgersen, and L.S. Craig. 2019. Conceptualizing ecological responses to dam removal: if you remove it, what’s to come? BioScience 69(1): 26-39. DOI: 10.1093/biosci/biy152.
Duda, J., R. Bellmore, and G. Pess. 2019. When a river is dammed, is it damned forever? OUPblog, Oxford University Press, BioScience, March 16, 2019.
Duda, J.J., J.H. Anderson, M. Beirne, S. Brenkman, P. Crain, J. Mahan, M. McHenry, G. Pess, R. Peters, and B. Winter. 2019. Complexities, context, and new information about the Elwha River. Frontiers in Ecology and the Environment 17(1): 10-11. DOI: 10.1002/fee.1989.
Duda, J.J., J.H. Anderson, M. Beirne, S. Brenkman, P. Crain, J. Mahan, M. McHenry, G. Pess, R. Peters, and B. Winter. 2019. Complexities, context, and new information about the Elwha River. Frontiers in Ecology and the Environment 17(1): 10-11.
Duda, J.J. 2019. Replacing hydropower with solar. Nature Sustainability, News and Views. DOI: 10.1038/s41893-019-0372-5.
Ohlberger, J., S.J. Brenkman, P. Crain, G.R. Pess, J.J. Duda, T.W. Behrens, T.P. Quinn, and R. Hilborn. 2019. A Bayesian life-cycle model to estimate escapement at maximum sustained yield in salmon based on limited information. Canadian Journal of Fisheries and Aquatic Sciences 76(2): 299-307. DOI: 10.1139/cjfas-2017-0382.
Duda, J.J., M.M. Beirne, J.A. Warrick, and C.S. Magirl. 2018. Science partnership between U.S. Geologcial Survey and the Lower Elwha Klallam Tribe – Understanding the Elwha River Dam Removal Project: U.S. Geological Survey Fact Sheet 2018-3025, 4 p. DOI: 10.3133/fs20183025.
Duda, J.J., S.J. Brenkman, and P. Crain. 2018. 4.2.1 Pacific Salmonids. Pages 124-167 in R. McCaffery, and K. Jenkins, (eds.), Natural Resource Condition Assessment, Olympic National Park. Natural resource condition assessment: Olympic National Park. Natural Resource Report NPS/OLYM/NRR2018/1826. National Park Service, Fort Collins, Colorado.
Ostberg, C.O., D.M. Chase, M.C. Hayes, and J.J. Duda. 2018. Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds. Peer J 6:e4496. DOI: https://peerj.com/articles/4496/.
Ritchie, A.C., J.A. Warrick, A.E. East, C.S. Magirl, A.W. Stevens, J.A. Bountry, T.J. Randle, C.A. Curran, R.C. Hilldale, J.J. Duda, G.R. Gelfenbaum, I.A. Miller, G.R. Pess, M.M. Foley, R. McCoy, and A.S. Ogston. 2018. Morphodynamic evolution following sediment release from the worlds largest dam removal. Scientific Reports 8:13279 DOI:10.1038/s41598-018-30817-8.
Tillotson, M.D., R.P. Kelly, J.J. Duda, M. Hoy, J. Kralj, and T.P. Quinn. 2018. Concentrations of environmental DNA (eDNA) reflect spawning salmon abundance at fine spatial and temporal scales. Biological Conservation 220:1-11. DOI: 10.1016/j.biocon.2018.01.030.
Bellmore, J.R., J.J. Duda, L.S. Craig, S.L. Greene, C.E. Torgersen, M.J. Collins, and K. Vittum. 2017. Status and trends of dam removal research in the United States. WIREs Water 4:e1164. DOI:10.1002/wat2.1164.
Foley, M.M., J. A. Warrick, A. Ritchie, A.W. Stevens, P.B. Shafroth, M.M. Beirne, R. Paradis, J.J. Duda, G. Gelfenbaum, R. McCoy, and E.S. Cubley. 2017. Coastal habitat and biological community response to dam removal on the Elwha River. Ecological Monographs, 87(4):552-577. DOI: 10.1002/ecm.1268.
Foley, M.M., J.R. Bellmore, J.E. O’Connor, J.J. Duda, A.E. East, G.E. Grant, C.W. Anderson, J.A. Bountry, M.J. Collins, P.J. Connolly, L.S. Craig, J.E. Evans, S.L. Greene, F.J. Magilligan, C.S. Magirl, J.J. Major, G.R. Pess, T.J. Randle, P.B. Shafroth, C.E. Torgersen, D. Tullos, and A.C. Wilcox. Dam removal: Listening in. 2017. Water Resources Research 53(7): 5229-5246. DOI: 10.1002/2017WR020457.
Rubin, S.P., I.M. Miller, M.M. Foley, H.D. Berry, J.J. Duda, B. Hudson, N.E. Elder, M.M. Beirne, J.A. Warrick, M.L. McHenry, A.W. Stevens, E.F. Eidam, A.S. Ogston, G. Gelfenbaum, and R. Pedersen. 2017. Increased sediment load during a large-scale dam removal changes nearshore subtidal communities. PloS ONE 12(12): e0187742. DOI: 10.1371/journal.pone.0187742.
Duda, J.J., D.J. Wieferich, R.S. Bristol, J.R. Bellmore, V.B. Hutchinson, K.M. Vittum, Laura Craig, and J.A. Warrick. 2016. Dam Removal Information Portal (DRIP) – A map-based resouce linking scientific studies and associated geospatial information about dam removals: U.S. Geological Survey Open-File Report 2016-1132, 14 p. DOI: 10.3133/ofr20161132.
Morley, S.A., H.J. Coe, J.J. Duda, L.S. Dunphy, M.L. McHenry, B.R. Beckman, M. Elofson, E.M. Sampson, and L. Ward. 2016. Seasonal variation exceeds effects of salmon carcass additions on benthic food webs in the Elwha River. Ecosphere 7(8): e01422, 19 p. DOI: 10.1002/ecs2.1422.
Thorton, E.J., J.J. Duda, and T.P. Quinn. 2016. Influence of species, size, and relative abundance on the outcomes of competitive interactions between brook trout and juvenile coho salmon. Ethology Ecology & Evolution 2:157-169. DOI: 10.1080/03949370.2015.1125393.
East, A.E., G.R. Pess, J.A. Bountry, C.S. Magirl, A.C. Ritchie, J.B. Logan, T.J. Randle, M.C. Mastin, J.T. Minear, J.J. Duda, M.C. Liermann, M.L. McHenry, T.J. Beechie, and P.B. Shafroth. 2015. Large-scale dam removal on the Elwha River, Washington, USA: River channel and floodplain geomorphic change. Geomorphology 228: 765-786. DOI: 10.1016/j.geomorph.2014.08.028
Foley, M.M., J.J. Duda, M.M. Beirne, R. Paradis, A. Ritchie, and J.A. Warrick. 2015. Rapid water quality change in the Elwha River estuary complex during dam removal. Limnology and Oceanography 60(5): 1719-1732. DOI: 10.1002/lno.10129.
Magirl, C.S., R.C. Hilldale, C.A. Curran, J.J. Duda, T.D. Straub, M. Domanski, J.R. Forman. 2015. Large-scale dam removal on the Elwha River, Washington, USA: Fluvial sediment load. Geomorphology 246: 669-686. DOI: 10.1016/j.geomorph.2014.12.032.
O’Connor, J.E., J.J. Duda, G.E. Grant. 2015. 1000 dams down and counting. Science 348(6234): 496-497. DOI: 10.1126/science.aaa9204
Tonra, C.M., K. Sager-Fradkin, S.A. Morley, J.J. Duda, and P.P. Marra. 2015. The rapid return of marine-derived nutrients to a freshwater food web following dam removal. Biological Conservation 192 (2015): 130-134. DOI: 10.1016/j.biocon.2015.09.009.
Warrick, J.A., J.A. Bountry, A.E. East, C.S. Magirl, T.J. Randle, G. Gelfenbaum, A.C. Ritchie, G.R. Pess, V. Leung, and J.J. Duda. 2015. Large-scale dam removal on the Elwha River, Washington, USA: Source-to-sink sediment budget and synthesis. Geomorphology, 246(2015): 729-750. DOI: 10.1016/j.geomorph.2015.01.010.
Welty, E.Z., C.E. Torgersen, S.J. Brenkman, J.J. Duda, and J.B. Armstrong. 2015. Multiscale analysis of river networks using the R package linbin. North American Journal of Fisheries Management 35(4): 802-809. DOI: 10.1080/02755947.2015.1044764.
Brenkman, S., J.J. Duda, P.R. Kennedy, and B.M. Baker. 2014. A legacy of divergent fishery management regimes and the resilience of rainbow and cutthroat trout populations in Lake Crescent, Olympic National Park, Washington. Northwest Science 88(4): 280-304. DOI: 10.3955/046.088.0404.
Curran, C.A., C.S. Magirl, and J. Duda. 2014. Suspended-sediment concentration during dam decommissioning in the Elwha River, Washington. USGS Data Set. DOI: 10.5066/F7T43R31.
Curran, C.A., C.S. Magirl, and J. Duda. 2013. Suspended-sediment concentration during dam decommissioning in the Elwha River, Washington. USGS Data Set. DOI: 10.5066/F7G73BQ2.
Graham, J.H., J.J. Duda, M.L. Brown, S. Kitchen, J.M. Emlen, J. Malol, E. Bankstahl, A.J. Krzysik, H. Balbach, and D.C. Freeman. 2012. The effects of drought and disturbance on the growth and developmental instability of loblolly pine (Pinus taeda L.). Ecological Indicators 20: 143-150. DOI: 10.1016/j.ecolind.2012.03.007.
Kuehne, L.M., J.D. Olden, and J.J. Duda. 2012. Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world. Canadian Journal of Fisheries and Aquatic Sciences 69(10): 1621-1630. DOI: 10.1139/f2012-094.
Rice, C.A., J.J. Duda, C.M. Greene, and J.R. Karr. 2012. Geographic patterns of fishes and jellyfish in Puget Sound surface waters. Marine and Coastal Fisheries Dynamics Management and Ecosystem Science 4(1): 117-128. DOI:10.1080/19425120.2012.680403.
Warrick, J.A., J.J. Duda, C.S. Magirl, and C.A. Curran. 2012. River turbidity and sediment loads during dam removal. EOS, Transactions of the American Geophysical Union 93(43): 425. DOI: 10.1029/2012EO430002.
Brenkman, S.J., J.J. Duda, C.E. Torgersen, E. Welty, G.R. Pess, R. Peters, and M.L. McHenry. 2011. A riverscape perspective of Pacific salmonids and aquatic habitats prior to large-scale dam removal in the Elwha River, Washington, USA. Fisheries Management and Ecology 19(1): 36-53. DOI: 10.1111/j.1365-2400.2011.00815.x.
Duda, J. J., H.J. Coe, S.A. Morley, and K.K. Kloehn. 2011. Establishing spatial trends in water chemistry and stable isotopes (δ15N and δ13C) in the Elwha River prior to dam removal and salmon recolonization. River Research and Applications 27(10): 1169-1181. DOI: 10.1002/rra.1413.
Duda, J.J., Warrick, J.A., and Magirl, C.S., eds. 2011. Elwha River dam removal-Rebirth of a river. U.S. Geological Survey Fact Sheet 2011-3097, 4 p.
Duda, J.J., Warrick, J.A., and Magirl, C.S., eds. 2011. Coastal habitats of the Elwha River, Washington— Biological and physical patterns and processes prior to dam removal: U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.
Duda, J.J., J.A. Warrick, and C.S. Magirl. 2011. Chapter 1: Coastal and lower Elwha River, Washington, prior to dam removal—history, status, and defining characteristics. Pages1-26 in Coastal habitats of the Elwha River, Washington—biological and physical patterns and processes prior to dam removal. U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.
Duda, J.J., M.M. Beirne, K. Larsen, D. Barry, K. Stenberg, and M.L. McHenry. 2011. Chapter 7: Aquatic ecology of the Elwha River Estuary Prior to Dam Removal. Pages 175-224 in Coastal habitats of the Elwha River, Washington—biological and physical patterns and processes prior to dam removal. U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.
Gelfenbaum, G., J.J. Duda, and J.A. Warrick. 2011. Chapter 9: Summary and anticipated responses to Elwha River Dam Removal. Pages 249-266 in Coastal habitats of the Elwha River, Washington—biological and physical patterns and processes prior to dam removal. U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.
Graham, J.H., and J.J. Duda. 2011. The humpbacked species richness-curve: A contingent rule for community ecology. International Journal of Ecology Vol. 2011, Article ID 868426, 15 p. DOI: 10.1155/2011/868426.
Magirl, C.S., C.A. Curran, R.W. Shelbley, J.A. Warrick, J.A. Czuba, C.R. Czuba, A.S. Gendaszek, P.B. Shafroth, J.J. Duda, and J.R. Foreman. 2011. Chapter 4: Baseline hydrologic studies in the Lower Elwha River prior to dam removal. Pages75-110 in Coastal habitats of the Elwha River, Washington—biological and physical patterns and processes prior to dam removal. U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.
Ostberg, C.O., J.J. Duda, J.H. Grahamb, S. Zhang, K.P. Haywood III, B. Miller, and T.L. Lerud. 2011. Growth, morphology, and developmental instability of rainbow trout, Yellowstone cutthroat trout, and four hybrid generations. Transactions of the American Fisheries Society 140(2): 334-344. DOI: 10.1080/00028487.2011.567866.
Rubin, S.P., I.M. Miller, N. Elder, R.R. Reisenbichler, and J.J. Duda. 2011. Chapter 6: Nearshore biological communities prior to removal of the Elwha River dams. Pages 131-174 in Duda, J.J., J.A.Warrick, and C.S. Magirl eds. Coastal habitats of the Elwha River, Washington— Biological and physical patterns and processes prior to dam removal. U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.
Magirl, C.S., P.J. Connolly, B. Coffin, J.J. Duda, C.A. Curran, and A.E. Draut. 2010. Sediment management strategies associated with dam removal in the State of Washington. Bernard, J.M., and J.W. Webb (eds.). In Proceedings of the Joint Federal Interagency Conference, Las Vegas, NV, June 28 - July 1, 2010, 10 p. (CD-ROM ISBN 978-0-9779007-3-2). http://acwi.gov/sos/pubs/2ndJFIC/HOME.pdf
Pess, G.R., S.J. Brenkman, G.A. Winans, M.L. McHenry, J.J. Duda, and T.J. Beechie. 2010. Elwha River dam removal: A major opportunity for salmon and steelhead recolonization. The Osprey 65: 1-8.
Welsh, H.H., Jr., G.R. Hodgson, J.J. Duda, and J.M. Emlen. 2010. 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. Animal Biodiversity and Conservation 33.1: 63-87.
Graham, J.H., 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, and H. Balbach. 2009. Species richness, equitability, and abundance of ants in disturbed landscapes. Ecological Indicators 9(5): 866-877. DOI: 10.1016/j.ecolind.2008.10.003.
Hanson, L., R. Schrock, T.J. Waddle, J.J. Duda, and W.A. Lellis. 2009. USGS river ecosystem modeling – Where are we, how did we get here, and where are we going? A report from the USGS River Ecosystem Modeling Work Group: U.S. Geological Survey Scientific Investigations Report 2009-5018, 81 p.
McCarthy, S.G., J.J. Duda, J.M. Emlen, G.R. Hodgson, D.A. Beauchamp. 2009. Linking habitat quality with trophic performance of steelhead along forest gradients in the south fork Trinity River watershed, California. Transactions of the American Fisheries Society 138(3): 506-521. DOI:10.1577/T08-053.1.
Brenkman, S.J., G.R. Pess, C.E. Torgersen, K.K. Kloehn, J.J. Duda, and S.C. Corbett. 2008. Predicting recolonization patterns and interactions between potamodromous and anadromous salmonids in response to dam removal in the Elwha River, Washington State, USA. Northwest Science 82(sp1): 91-106. DOI: 10.3955/0029-344X-82.S.I.91.
Duda, J.J., and R.J. Camp. 2008. Ecology in the information age: Patterns of use and attrition rates of internet-based citations in ESA journals, 1997-2005. Frontiers in Ecology and the Environment 6(3): 145-151. DOI: 10.1890/070022.
Duda, J.J., J.E. Freilich, and E.G. Schreiner. 2008. Baseline studies in the Elwha River ecosystem prior to dam removal: Introduction to the Special Issue. Northwest Science 82(sp1): 1-12. DOI: 10.3955/0029-344X-82.S.I.1.
Graham, J.H., 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, and H. Balbach. 2008. Ant community composition across a gradient of disturbed military landscapes at Fort Benning, Georgia. Southwestern Naturalist 7(3): 429-448.
Kloehn, K.K., T.J. Beechie, S.A. Moreley, H.J. Coe, and J.J. Duda. 2008. Influence of dams on river-floodplain dynamics in the Elwha River, Washington. Northwest Science 82(sp1): 224-235. DOI: 10.3955/0029-344X-82.S.I.224.
Morley, S.A., J.J. Duda, H.J. Coe, K.K. Kloehon, and M.L. McHenry. 2008. Benthic invertebrates and periphyton in the Elwha river basin: Current conditions and predicted response to dam removal. Northwest Science 82(sp1): 179-196. DOI: 10.3955/0029-344X-82.S.I.179.
Minion, J.M., D. Barry, L. Urbanec, A. Gray, and J. Duda. 2007. Salmon, forests, and pre-restoration assessment using stable isotope analysis on riparian vegetation. Ecological Restoration 25(3): 211-231. DOI: 10.3368/er.25.3.211
Emlen, J.M., J.J. Duda, M.D. Kirchhoff, D. Carl Freeman. 2006. Interaction Assessment: A modeling tool for predicting population dynamics from field data. Ecological Modelling 192(3-4): 557-570. DOI: 10.1016/j.ecolmodel.2005.07.012.
Freeman, D.C., M.L. Brown, J.J. Duda, J.H. Graham, J.M. Emlen, A.J. Krzysik, H.E. Balbach, D.A. Kovacic, and J.C. Zak. 2005. Leaf fluctuating asymmetry, soil disturbance, and plant stress: A multiple year comparison using two herbs, Ipomoea pandurata and Cnidoscolus stimulosus. Ecological Indicators 5(2): 85-95. DOI: 10.1016/j.ecolind.2004.05.002.
Freilich, J.E., R.J. Camp, J.J. Duda, and A.E. Karl. 2005. Problems with sampling desert tortoises: a simulation analysis based upon field data. Journal of Wildlife Management 69(1): 45-56. DOI: 10.2193/0022-541X(2005)069<0045:PWSDTA>2.0.CO;2.
Duda, J.J., D.C. Freeman, M. Brown, J.M. Emlen, J.H. Graham, A.J. Krzysik, J.C. Zak, and D.A. Kovacic. 2004. Estimating disturbance effects from military training using developmental instability and physiological measures of plant stress. Ecological Indicators 3(4): 251-262. DOI: 10.1016/j.ecolind.2003.11.003.
Freeman, D.C., M.L. Brown, J.J. Duda, J.H. Graham, J.M. Emlen, A.J. Krzysik, J.C. Zak, and D.A. Kovacic. 2004. Developmental instability in Rhus copallinum L.: multiple stressors, years, and responses. International Journal of Plant Sciences 165(1): 53-63. DOI: doi.org/10.1086/380986.
Freeman, D.C., M.L. Brown, J.J. Duda, J.H. Graham, J.M. Emlen, A.J. Krzysik, H.E. Balbach, D.A. Kovacic, and J.C. Zak. 2004. Photosynthesis and fluctuating asymmetry as indicators of plant response to soil disturbance in the Fall-Line Sandhills of Georgia: A case study using Rhus copallinum and Ipomoea pandurata. International Journal of Plant Sciences 165(5): 805-816. DOI: 10.1086/421478.
Graham, J.H., H.H. Hughie, S. Jones, K. Wrinn, A.J. Krzysik, J.J. Duda, D.C. Freeman, J.M. Emlen, J.C. Zak, D.A. Kovacic, C.Chamberlin-Graham, and H. Balbach. 2004. Habitat disturbance and the diversity and abundance of ants (Formicidae) in the Southeastern Fall-Line Sandhills. Journal of Insect Science 4(1): 1-15. DOI: 10.1093/jis/4.1.30.
Duda, J.J., D.C. Freeman, J.M. Emlen, J. Belnap, S.G. Kitchen, J.C. Zak, E. Sobek, M. Tracy, and J. Montante. 2003. Differences in native soil ecology associated with invasion of the exotic annual chenopod, Halgeton glomeratus. Biology and Fertility of Soils 38(2): 72-77. DOI: 10.1007/s00374-003-0638-x.
Emlen, J.M., D.C. Freeman, M.D. Kirchhoff, C.L. Alados, J. Escos, and J.J. Duda. 2003. Fitting population models from field data. Ecological Modelling 162(1-2): 119-143. DOI: 10.1016/S0304-3800(02)00390-3.
Freilich, J.E., J.M. Emlen, J.J. Duda, D. C. Freeman, and P.J. Cafaro. 2003. Ecological effects of ranching: A six-point critique. BioScience 53(8): 759-765. DOI: 10.1641/0006-3568(2003)053[0759:EEORAS]2.0.CO;2.
Tracy, M., D.C. Freeman, J.J. Duda, K.J. Miglia, J.H. Graham, and R.A. Hough. 2003. Developmental instability: an appropriate indicator of plant fitness? Pages 196-212 in M. Polak (ed.). Developmental Instability: Causes and Consequences. Oxford University Press, New York, NY.
Duda, J.J., A.J. Krzysik, and J.M. Meloche. 2002. Spatial organization of desert tortoises and their burrows at a landscape scale. Chelonian Conservation and Biology 4(2): 387-397.
Duda, J.J., A.J. Krzysik, and J.E. Frelich. 1999. Effects of drought on desert tortoise movement and activity. Journal of Wildlife Management 63: 1181-1192.
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.
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.
Data Releases:
Duda, J.J., R.C. Johnson, D.J. Wieferich, and J.R. Bellmore. 2018. USGS Dam Removal Science Database v2.0: U.S. Geological Survey data release, https://doi.org/10.5066/P9IGEC9G.
Hoy, M.S., M.D. Tillotson, J. Kralj, J.J. Duda, R.P. Kelly, and T.P. Quinn. 2018. Concentrations of environmental DNA (eDNA) during sockeye salmon spawning in 2016, Hansen Creek, Alaska, USA. U.S. Geological Survey data release, https://doi.org/10.5066/F7K073HH.
Ostberg, C.O., D.M. Chase, M.C. Hayes, and J.J. Duda. 2018. Distribution and seasonal differences in Pacific lamprey and Lampetra spp. eDNA across 18 Puget Sound watersheds, 2014 and 2015: U.S. Geological Survey data release, https://doi.org/10.5066/F7H994DT.
Ostberg, C.O., D.M. Chase, M.S. Hoy, J.J. Duda, M.C. Hayes, J.C. Jolley, G.S. Silver, J. Barkstedt, and C. Cook-Tabor. 2018. 2015 environmental DNA surveys for lampreys in Chehalis River tributaries, Washington: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZU4EU7.
Rubin, S.P., H.D. Berry, N.E. Elder, I.M. Miller, and J.J. Duda. 2017. Data collected in 2008-2014 to assess nearshore subtidal community responses to increased sediment load during removal of the Elwha River dams, Washington State, USA: U.S. Geological Survey data release, DOI: https://doi.org/10.5066/F7JS9PDK.
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
Honors, Awards, Recognition, Elected Memberships:
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
Academic and Professional Service:
2015 to Present – Scientific Advisory Board, Mactaquac Aquatic Ecosystem Study
2012 to Present – Science Liaison, Board of Directors, Nature Bridge at Olympic National Park
Professional Societies:
1998 to Present – Ecological Society of America
2008 to Present – Northwest Scientific Association
2010 to Present – American Fisheries Society
In the News:
CBC News story on Elwha Dam removal.
Rivers respond following dam removal.
Science News on Elwha Dam removal.
Science News video piece on the Elwha Dam removal.
New York Times, Elwha Dam removal.
Science and Products
Date published: July 15, 2019
Status: Active USGS science supporting the Elwha River Restoration Project
The Elwha River Restoration Project...
... has reconnected the water, salmon, and sediment of a pristine river and coast of the Olympic Peninsula of Washington. Coordinated by the National Park Service, restoration of the Elwha River included the removal of two large dams that had blocked salmon and sediment passage for almost 100 years. The largest dam removal in U.S. history began in...
Date published: April 7, 2015
Status: Active National Dam Removal Database: A living database for information on dying dams
The United States has over 2 million dams on rivers and streams (Graf, 1999), and more than 84,000 of the larger dams are documented in the congressionally mandated National Inventory of Dams (U.S. Army Corps of Engineers, 2015). The average age of these National Inventory of Dams is 52 years; by the year 2030, over 80 percent will be at least 50 years old (American Society of Civil Engineers...
Attribution: Community for Data Integration (CDI)
Date published: October 25, 2013
Status: Active Dam removal: synthesis of ecological and physical responses
Dam decommissioning is rapidly emerging as an important river restoration strategy in the U.S., with several major removals recently completed or in progress. But few studies have evaluated the far-reaching consequences of these significant environmental perturbations, especially those resulting from removals of large (>10-15 m tall) structures during the last decade. In particular,...
Attribution: John Wesley Powell Center for Analysis and Synthesis
Date published: January 1, 2018
USGS Dam Removal Science Database v2.0
This database is the result of an extensive literature search aimed at identifying documents relevant to the emerging field of dam removal science. In total the database contains 214 citations that contain empirical monitoring information associated with 181 different dam removals across the United States and abroad. Data includes publications through 2016 and supplemented with the U.S. Army...
Date published: January 1, 2018
Concentrations of environmental DNA (eDNA) during sockeye salmon spawning in 2016, Hansen Creek, Alaska, USA
This dataset contains environmental DNA (eDNA) concentrations and spawning adult abundances for sockeye salmon (Oncorhynchus nerka) in Hansen Creek, a small tributary in the Wood River watershed, southeast Alaska, USA. We took temporally- and spatially-replicated eDNA samples during the spawning period (mid-July through August), along with fish counts (live, naturally dead, and killed),...
Date published: January 1, 2018
Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds, 2014 and 2015
These data contain all the raw results needed to support the conclusions for the final product. These data are water sampling locations (latitude and longitude), date of water sampling, quantitative PCR values for each water sample, and stream flow at USGS stream gauging stations on sampling day.
Date published: November 28, 2017
Data collected in 2008-2014 to assess nearshore subtidal community responses to increased sediment load during removal of the Elwha River dams, Washington State, USA
Data are time series of substrate grain size, remotely sensed water column turbidity, and measures of abundance (e.g., density, percent cover) of the nearshore subtidal (3-17 m depth) benthic community (vegetation, invertebrates, and fish) collected before (2008-2011) and during dam removal (2012-2014).
Date published: October 31, 2016
Dam Removal Information Portal (DRIP)
The Dam Removal Information Portal (DRIP) is a web application where partners, scientists, and practitioners can find information on dam removals and associated scientific studies. It is a visualization tool, including a map and interactive charts, of a dam-removal literature review designed and developed by a working group at the USGS John...
Year Published: 2019
Conceptualizing ecological responses to dam removal: If you remove it, what's to come?
One of the desired outcomes of dam decommissioning and removal is the recovery of aquatic and riparian ecosystems. To investigate this common objective, we synthesized information from empirical studies and ecological theory into conceptual models that depict key physical and biological links driving ecological responses to removing dams. We...
Bellmore, J. Ryan; Pess, George R.; Duda, Jeffrey J.; O'Connor, Jim E.; East, Amy E.; Foley, Melissa M.; Wilcox, Andrew C.; Major, Jon J.; Shafroth, Patrick B.; Morley, Sarah A.; Magirl, Christopher S.; Anderson, Chauncey W.; Evans, James E.; Torgersen, Christian E.; Craig, Laura S.Attribution: Biology and Ecosystems, Arizona Water Science Center, , Forest and Rangeland Ecosystem Science Center (FRESC), Fort Collins Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Oregon Water Science Center, Pacific Coastal and Marine Science Center, Western Fisheries Research Center, Ecosystems, Fisheries Program, Washington, United States of America
Year Published: 2019
A Bayesian life-cycle model to estimate escapement at maximum sustained yield in salmon based on limited information
Life-cycle models combine several strengths for estimating population parameters and biological reference points of harvested species and are particularly useful for those exhibiting distinct habitat shifts and experiencing contrasting environments. Unfortunately, time series data are often limited to counts of adult abundance and harvest. By...
Ohlberger, Jan; Brinkman, Samuel J.; Crain, Patrick; Pess, George R.; Duda, Jeffrey J.; Buehrens, Thomas W.; Quinn, Thomas P.; Hilborn , Ray
Year Published: 2018
Science partnership between U.S. Geological Survey and the Lower Elwha Klallam Tribe—Understanding the Elwha River Dam Removal Project
After nearly a century of producing power, two large hydroelectric dams on the Elwha River in Washington State were removed during 2011 to 2014 to restore the river ecosystem and recover imperiled salmon populations. Roughly two-thirds of the 21 million cubic meters of sediment—enough to fill nearly 2 million dump trucks—contained behind the dams...
Duda, Jeffrey J.; Beirne, Matt M.; Warrick, Jonathan A.; Magirl, Christopher S.Attribution: Western Fisheries Research Center, Ecosystems, Energy & Wildlife, Fisheries Program, United States of America, Tribal Relations
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Duda, J.J., Beirne, M.M., Warrick, J.A., and Magirl, C.S., 2018, Science partnership between U.S. Geological Survey and the Lower Elwha Klallam Tribe—Understanding the Elwha River Dam Removal Project: U.S. Geological Survey Fact Sheet 2018–3025, 4 p., https://doi.org/10.3133/fs20183025.
Year Published: 2018
Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds
Lampreys have a worldwide distribution, are functionally important to ecological communities and serve significant roles in many cultures. In Pacific coast drainages of North America, lamprey populations have suffered large declines. However, lamprey population status and trends within many areas of this region are unknown and such information is...
Ostberg, Carl O.; Chase, Dorothy M.; Hayes, Michael C.; Duda, Jeffrey J.Attribution: Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Washington, United States of America
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Ostberg, C.O., D.M. Chase, M.C. Hayes, and J.J. Duda. 2018. Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds. Peer J 6:e4496.
Year Published: 2018
Concentrations of environmental DNA (eDNA) reflect spawning salmon abundance at fine spatial and temporal scales
Developing fast, cost-effective assessments of wild animal abundance is an important goal for many researchers, and environmental DNA (eDNA) holds much promise for this purpose. However, the quantitative relationship between species abundance and the amount of DNA present in the environment is likely to vary substantially among taxa and with...
Tillotson, Michael D.; Kelly, Ryan P.; Duda, Jeffrey J.; Hoy, Marshal S.; Kralj, James; Quinn, Thomas P.Attribution: Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Energy & Wildlife, Fisheries Program, United States of America
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Tillotson, M.D., R.P. Kelly, J.J. Duda, M. Hoy, J. Kralj, and T.P. Quinn. 2018. Concentrations of environmental DNA (eDNA) reflect spawning salmon abundance at fine spatial and temporal scales. Biol. Conserv. 220:1-11.
Year Published: 2017
Increased sediment load during a large-scale dam removal changes nearshore subtidal communities
The coastal marine ecosystem near the Elwha River was altered by a massive sediment influx—over 10 million tonnes—during the staged three-year removal of two hydropower dams. We used time series of bathymetry, substrate grain size, remotely sensed turbidity, scuba dive surveys, and towed video observations collected before and during dam removal...
Rubin, Stephen P.; Miller, Ian M.; Foley, Melissa M.; Berry, Helen D.; Duda, Jeffrey J.; Hudson, Benjamin; Elder, Nancy E.; Beirne, Matthew M.; Warrick, Jonathan A.; McHenry, Michael L.; Stevens, Andrew W.; Eidam, Emily; Ogston, Andrea; Gelfenbaum, Guy R.; Pedersen, RobAttribution: Biology and Ecosystems, Pacific Coastal and Marine Science Center, Western Fisheries Research Center, Ecosystems, Coastal and Marine Hazards and Resources Program, Fisheries Program, United States of America
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Rubin, S.P., I.M. Miller, M.M. Foley, H.D. Berry, J.J. Duda, B. Hudson, N.E. Elder, M.M. Beirne, J.A. Warrick, M.L. McHenry, A.W. Stevens, E.F. Eidam, A.S. Ogston, G. Gelfenbaum, and R. Pedersen. 2017. Increased sediment load during a large-scale dam removal changes nearshore subtidal communities. PloS ONE 12(12): e0187742. DOI: 10.1371/journal.pone.0187742.
Year Published: 2017
Dam removal: Listening in
Dam removal is widely used as an approach for river restoration in the United States. The increase in dam removals—particularly large dams—and associated dam-removal studies over the last few decades motivated a working group at the USGS John Wesley Powell Center for Analysis and Synthesis to review and synthesize available studies of dam removals...
Foley, Melissa M.; Bellmore, James; O'Connor, James E.; Duda, Jeffrey J.; East, Amy E.; Grant, Gordon G.; Anderson, Chauncey W.; Bountry, Jennifer A.; Collins, Mathias J.; Connolly, Patrick J.; Craig, Laura S.; Evans, James E.; Greene, Samantha; Magilligan, Francis J.; Magirl, Christopher S.; Major, Jon J.; Pess, George R.; Randle, Timothy J.; Shafroth, Patrick B.; Torgersen, Christian E.; Tullos, Desiree D.; Wilcox, Andrew C.Attribution: Biology and Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Oregon Water Science Center, Pacific Coastal and Marine Science Center, Western Fisheries Research Center, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, Water Resources, Natural Hazards, Volcano Hazards, United States of America, John Wesley Powell Center for Analysis and Synthesis
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Foley, M.M., Bellmore, J.R., O'Connor, J.E., Duda, J.J., East, A.E., Grant, G.E., Anderson, C.W., Bountry, J.A., Collins, M.J., Connolly, P.J., Craig, L.S., Evans, J.E., Greene, S.L., Magilligan, F.J., Magirl, C.S., Major, J.J., Pess, G.R., Randle, T.J., Shafroth, P.B., Torgersen, C.E., Tullos, D., Wilcox, A.C. and Powell Center Dam Removal Working Group, available online 2017, Dam removal—listening in: Water Resources Research, doi:10.1002/2017WR020457
Year Published: 2017
Coastal habitat and biological community response to dam removal on the Elwha River
Habitat diversity and heterogeneity play a fundamental role in structuring ecological communities. Dam emplacement and removal can fundamentally alter habitat characteristics, which in turn can affect associated biological communities. Beginning in the early 1900s, the Elwha and Glines Canyon dams in Washington, USA, withheld an estimated 30...
Foley, Melissa M.; Warrick, Jonathan A.; Ritchie, Andrew C.; Stevens, Andrew W.; Shafroth, Patrick B.; Duda, Jeffrey J.; Beirne, Matthew M.; Paradis, Rebecca; Gelfenbaum, Guy R.; McCoy, Randall; Cubley, Erin S.Attribution: Biology and Ecosystems, Pacific Coastal and Marine Science Center, Western Fisheries Research Center, Ecosystems, Energy & Wildlife, United States of America
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Foley, M.M., Warrick, J.A., Ritchie, Andrew, Stevens, A.W., Shafroth, P.B., Duda, J.J., Beirne, M.M., Paradis, R., Gelfenbaum, Guy, McCoy, R., and Cubley, E.S., 2017, Coastal habitat and biological community response to dam removal on the Elwha River: Ecological Monographs, available online, doi:10.1002/ecm.1268
Year Published: 2017
Status and trends of dam removal research in the United States
Aging infrastructure coupled with growing interest in river restoration has driven a dramatic increase in the practice of dam removal. With this increase, there has been a proliferation of studies that assess the physical and ecological responses of rivers to these removals. As more dams are considered for removal, scientific information from...
Bellmore, James; Duda, Jeffrey J.; Craig, Laura; Greene, Samantha L.; Torgersen, Christian E.; Collins, Mathias J.; Vittum, KatherineAttribution: Biology and Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Western Fisheries Research Center, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, Status and Trends Program, United States of America, John Wesley Powell Center for Analysis and Synthesis
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Bellmore, J., Duda, J.J., Craig, L., Greene, S.L., Torgersen, C.E., Collins, M.J., Vittum, K.M., 2016, Status and trends of dam removal research in the United States: WIREs Water, p. online, http://dx.doi.org/10.1002/wat2.1164.
Year Published: 2016
Community for Data Integration 2015 annual report
The Community for Data Integration (CDI) continued to experience success in fiscal year 2015. The CDI community members have been sharing, learning, and collaborating through monthly forums, workshops, working groups, and funded projects. In fiscal year 2015, CDI coordinated 10 monthly forums with 16 different speakers from the U.S. Geological...
Langseth, Madison L.; Chang, Michelle Y.; Carlino, Jennifer; Bellmore, J. Ryan; Birch, Daniella D.; Bradley, Joshua; Bristol, R. Sky; Buscombe, Daniel D.; Duda, Jeffrey J.; Everette, Anthony L.; Graves, Tabitha A.; Greenwood, Michelle M.; Govoni, David L.; Henkel, Heather S.; Hutchison, Vivian B.; Jones, Brenda K.; Kern, Tim; Lacey, Jennifer; Lamb, Rynn M.; Lightsom, Frances L.; Long, John L.; Saleh, Ra'ad A.; Smith, Stan W.; Soulard, Christopher E.; Viger, Roland J.; Warrick, Jonathan A.; Wesenberg, Katherine E.; Wieferich, Daniel J.; Winslow, Luke A.Attribution: Community for Data Integration (CDI), Earth Resources Observation and Science (EROS) Center, , Science Analytics and Synthesis (SAS), Earth Resources Observation and Science Center, United States of America
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Langseth, M.L., Chang, M.Y., Carlino, Jennifer, Bellmore, J.R., Birch, D.D., Bradley, Joshua, Bristol, R.S., Buscombe, D.D., Duda, J.J., Everette, A.L., Graves, T.A., Greenwood, M.M., Govoni, H.S., Henkel, H.S., Hutchison, V.B., Jones, B.K., Kern, Tim, Lacey, Jennifer, Lamb, R.M., Lightsom, F.L., Long, J.L., Saleh, R.A., Smith, S.W., Soulard, C.E., Viger, R.J., Warrick, J.A., Wesenberg, K.E., Wieferich, D.J., and Winslow, L.A., 2016, Community for Data Integration 2015 annual report: U.S. Geological Survey Open-File Report 2016–1165, 57 p., http://dx.doi.org/10.3133/ofr20161165.
Year Published: 2016
Seasonal variation exceeds effects of salmon carcass additions on benthic food webs in the Elwha River
Dam removal and other fish barrier removal projects in western North America are assumed to boost freshwater productivity via the transport of marine-derived nutrients from recolonizing Pacific salmon (Oncorhynchus spp.). In anticipation of the removal of two hydroelectric dams on the Elwha River in Washington State, we tested this hypothesis with...
Morley, S.A.; Coe, H.J.; Duda, J.J.; Dunphy, L.S.; McHenry, M.L.; Beckman, B.R.; Elofson, M.; Sampson, E. M.; Ward, L.Attribution: Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America
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Morley, S.A., H.J. Coe, J.J. Duda, L.S. Dunphy, M.L. McHenry, B.R. Beckman, M. Elofson, E.M. Sampson, and L. Ward. 2016. Seasonal variation exceeds effects of salmon carcass additions on benthic food webs in the Elwha River. Ecosphere 7(8): e01422, 19 p.
Year Published: 2016
Dam Removal Information Portal (DRIP)—A map-based resource linking scientific studies and associated geospatial information about dam removals
The removal of dams has recently increased over historical levels due to aging infrastructure, changing societal needs, and modern safety standards rendering some dams obsolete. Where possibilities for river restoration, or improved safety, exceed the benefits of retaining a dam, removal is more often being considered as a viable option. Yet, as...
Duda, Jeffrey J.; Wieferich, Daniel J.; Bristol, R. Sky; Bellmore, J. Ryan; Hutchison, Vivian B.; Vittum, Katherine M.; Craig, Laura; Warrick, Jonathan A.Attribution: Biology and Ecosystems, Community for Data Integration (CDI), Western Fisheries Research Center, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, Fisheries Program, Science Analytics and Synthesis (SAS), United States of America, John Wesley Powell Center for Analysis and Synthesis
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Duda, J.J., Wieferich, D.J., Bristol, R.S., Bellmore, J.R., Hutchison, V.B., Vittum, K.M., Craig, Laura, and Warrick, J.A., 2016, Dam Removal Information Portal (DRIP)—A map-based resource linking scientific studies and associated geospatial information about dam removals: U.S. Geological Survey Open-File Report 2016-1132, 14 p., http://dx.doi.org/10.3133/ofr20161132.
Pre-USGS Publications
Home range, burrow use, and activity patterns of the desert tortoise (Gopherus agassizii) in the south-central Mojave Desert
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.
Date published: September 13, 2016
International Recognition for Historic Elwha River Restoration
NEW DELHI, INDIA – The collaborative work of the U.S. Department of the Interior and the Lower Elwha Klallam Tribe to restore the Elwha River of Washington, USA was recognized as a world-renowned restoration project during the awarding of the 2016 Thiess International Riverprize.