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  Home > Research > Long-Term Research Categories > Research Areas

  Research Areas

Stream Ecology

The research has been designed to explore long-term processes that shape aquatic ecosystems, identify critical links between forests and streams, and examine the influences of natural and anthropogenic disturbances on stream communities and processes. Through LTER, we have developed a conceptual framework (Gregory et al. 1991) and experimental matrix of long-term measurements, short-term manipulative experiments, and opportunistic studies of episodic disturbances. Research includes long term population dynamics and community interactions for vertebrates and invertebrates, geomorphic and hydrologic processes, riparian dynamics, nutrient retention and fluxes, and drivers of stream temperature from reach to landscapes. Close up of a typical stream at the H.J Andrews Experimental Forest by Al Levno (July 1981)

Research Details

Key Databases

List of all Stream Ecology databases


Other Links

Key Citations

Arismendi, Ivan; Sherri L. Johnson; Jason B. Dunham; Roy Haggerty. 2013. Descriptors of natural thermal regimes in streams and their responsiveness to change in the Pacific Northwest of North America. Freshwater Biology 58:880-894. doi:10.1111/fwb.12094 (Pub No: 4791)

Gonzalez-Pinzon, R., R. Haggerty, and M. Dentz. 2013. Scaling and predicting solute transport processes in streams. Water Resour. Res. 49:1-18. doi:10.1002/wrcr.20280. (Pub No: 4793)

Argerich, A.; Johnson, S.L.; Sebestyen, S.D.; Rhoades, C.C.; Greathouse, E.; Knoepp, J.D.; Adams, M.B.; Likens, G.E.; Campbell, J.L.; McDowell, W.H.; Scatena, F.N.; Ice, G.G. 2013. Trends in stream nitrogen concentrations for forested reference catchments across the USA. Environmental Research Letters. 8: 8pp. (Pub No: 4805)

Warren, D.R., Keeton, W.S., Bechtold, H.A., Rosi-Marshall, E.J. 2013. Comparing streambed light availability and canopy cover in streams with old-growth versus early-mature riparian forests in western Oregon. Aquatic Sciences. 12p. DOI 10.1007/s00027-013-0299-2 (Pub No: 4817)

González Pinzón, Ricardo A. 2013. Integrating solute transport, metabolism and processing in stream ecosystems. Corvallis, OR: Oregon State University. 144 p. Ph.D. dissertation. (Pub No: 4822)

Dodds, Walter K.; Robinson, Christopher T.; Gaiser, Evelyn E.; Hansen, Gretchen J.A.; Powell, Heather; Smith, Joseph M.; Morse, Nathaniel B.; Johnson, Sherri L.; Gregory,Stanley V.; Bell, Tisza; Kratz, Timothy K.; McDowell, William H. 2012. Surprises and Insights from Long-Term Aquatic Data Sets and Experiments. BioScience 62: 709–721. (Pub No: 4769)

González-Pinzón, R.; Haggerty, R.; Myrold, D. D. . 2012. Measuring aerobic respiration in stream ecosystems using the resazurin-resorufin system. J. Geophys. Res 117: 10 p. (Pub No: 4770)

Arismendi, Ivan; Safeeq, Mohammad; Johnson, Sherri L.; Dunham, Jason B.; Haggerty, Roy. 2012. Increasing synchrony of high temperature and low flow in western North American streams: double trouble for coldwater biota? Hydrobiologia. 712(1): 61-70. (Pub No: 4808)

Arismendi, Ivan; Johnson, Sherri L.; Dunham, Jason B.; Haggerty, Roy; Hockman-Wert, David. 2012. The paradox of cooling streams in a warming world: Regional climate trends do not parallel variable local trends in stream temperature in the Pacific continental United States. Geophysical Research Letters. 39(L10401). 7p. doi:10.1029/2012GL051448 (Pub No: 4644)

Argerich, A.; Haggerty, R.; Martí, E.; Sabater, F.; Zarnetske, J. 2011. Quantification of metabolically active transient storage (MATS) in two reaches with contrasting transient storage and ecosystem respiration. Journal of Geophysical Research . 116, G03034, doi:10.1029/2010JG001379. (Pub No: 4705)

Li, Judith L.; Johnson, Sherri L.; Sobota, Janel Banks. 2011. Three responses to small changes in stream temperature by autumn-emerging aquatic insects. Journal of the North American Benthological Society. 30(2): 474-484. (Pub No: 4582)

Helton, Ashley M.; Poole, Geoffrey C.; Meyer, Judy L.; Wollheim, Wilfred M.; Peterson, Bruce J.; Mulholland, Patrick J.; Bernhardt, Emily S.; Stanford, Jack A.; Arango, Clay; Ashkenas, Linda R.; Cooper, Lee W.; Dodds, Walter K.; Gregory, Stanley V.; Hall, Robert O. Jr.; Hamilton, Stephen K.; Johnson, Sherri L.; McDowell, William H.; Potter, Jody D.; Tank, Jennifer L.; Thomas, Suzanne M.; Valett, H. Maurice; Webster, Jackson R.; Zeglin, Lydia. 2011. Thinking outside the channel: modeling nitrogen cycling in networked river ecosystems. Frontiers in Ecology and the Environment. 9(4): 229-238, doi:10.1890/089211. (Pub No: 4444)

Beaulieu, Jake J.; Tank, Jennifer L.; Hamilton, Stephen K.; [and others] [including Sherri L. Johnson]. 2011. Nitrous oxide emission from denitrification in stream and river networks. Proceeding of the National Academy of Sciences. 108(1): 214-219 . (Pub No: 4618)

Hill, Brian H.; McCormick, Frank H.; Harvey, Bret C.; Johnson, Sherri L.; Warren, Melvin L.; Elonen, Colleen M. 2010. Microbial enzyme activity, nutrient uptake and nutrient limitation in forested streams. Freshwater Biology. 55: 1005-1019. (Pub No: 4435)

Bernot, Melody J.; Sobota, Daniel J.; Hall, Robert O. Jr.; Mulholland, Patrick J.; Dodds, Walter K.; Webster, Jackson R.; Tank, Jennifer L.; Ashkenas, Linda R.; Cooper, Lee W.; Dahm, Clifford N.; Gregory, Stanley V.; Grimm, Nancy B.; Hamilton, Stephen K.; Johnson, Sherri L.; McDowell, William H.; Meyer, Judith L.; Peterson, Bruce; Poole, Geoffrey C.; Valett, H. Maurice; Arango, Clay; Beaulieu, Jake J.; Burgin, Amy J.; Crenshaw, Chelsea; Helton, Ashley M.; Johnson, Laura; Merriam, Jeff; Niederlehner, B. R.; O'Brien, Jonathan M.; Potter, Jody D.; Sheibley, Richard W.; Thomas, Suzanne M.; Wilson, Kym. 2010. Inter-regional comparison of land-use effects on stream metabolism. Freshwater Biology. 55: 1874-1890. (Pub No: 4587)

Mazza, Rhonda with Sherri Johnson. 2009. Undercover isotopes: tracking the fate of nitrogen in streams. Science Findings 115. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 p. (Pub No: 4554)

Mulholland, Patrick J.; Helton, Ashley M.; Poole, Geoffrey C.; Hall, Robert O. Jr.; Hamilton, Stephen K.; Peterson, Bruce J.; Tank, Jennifer L.; Ashkenas, Linda R.; Cooper, Lee W.; Dahm, Clifford N.; Dodds, Walter K.; Findlay, Stuart E. G.; Gregory, Stanley V.; Grimm, Nancy B.; Johnson, Sherri L.; McDowell, William H.; Meyer, Judy L.; Valett, H. Maurice; Webster, Jackson R.; Arango, Clay P.; Beaulieu, Jake J.; Bernot, Melody J.; Burgin, Amy J.; Crenshaw, Chelsea L.; Johnson, Laura T.; Niederlehner, B. R.; O'Brien, Jonathan M.; Potter, Jody D.; Sheibley, Richard W.; Sobota, Daniel J.; Thomas, Suzanne M. 2008. Stream denitrification across biomes and its response to anthropogenic nitrate loading. Nature. 452: 202-205 [plus methods page]. (Pub No: 4382)

Czarnomski, Nicole M.; Dreher, David M.; Snyder, Kai U.; Jones, Julia A.; Swanson, Frederick J. 2008. Dynamics of wood in stream networks of the western Cascades Range, Oregon. Canadian Journal of Forest Research. 38: 2236-2248. (Pub No: 4014)

Frady, Charles; Johnson, Sherri; Li, Judy. 2007. Stream macroinvertebrate community responses as legacies of forest harvest at the H.J. Andrews Experimental Forest, Oregon. Forest Science. 53(2): 281-293. (Pub No: 4053)

Sobota, Daniel J. 2007. Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems. Corvallis, OR: Oregon State University. 151 p. Ph.D. dissertation. (Pub No: 4337)

Hood, Eran; Gooseff, Michael N.; Johnson, Sherri L. 2006. Changes in the character of stream water dissolved organic carbon during flushing in three small watersheds, Oregon. Journal of Geophysical Research. 111(G01007): doi:10.1029/2005JG000082. (Pub No: 4000)

Thompson, Jonathan with Sherri Johnson and Steve Wondzell. 2005. Keeping it cool: unraveling the influences on stream temperature. Science Findings 73. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p. (Pub No: 3952)

Ashkenas, Linda R.; Johnson, Sherri L.; Gregory, Stan V.; Tank, Jennifer L.; Wollheim, Wilfred M. 2004. A stable isotope tracer study of nitrogen uptake and transformation in an old-growth forest stream. Ecology. 85(6): 1725-1739. (Pub No: 3605)

Farrand, Alexander Mark. 2004. Effect of adult aquatic insect life history on return to Lookout Creek, H.J. Andrews Experimental Forest, Oregon. Corvallis, OR: Oregon State University. 69 p. M.S. thesis. (Pub No: 3813)

Czarnomski, Nicole Marie. 2003. Effects of harvest and roads on in-stream wood abundance in the Blue River Basin, western Cascades, Oregon. Corvallis, OR: Oregon State University. 144 p. M.S. thesis. (Pub No: 3747)

Faustini, John M.; Jones, Julia A. 2003. Influence of large woody debris on channel morphology and dynamics in steep, boulder-rich mountain streams, western Cascades, Oregon. Geomorphology. 51: 187-205 . (Pub No: 3013)

Vanderbilt, Kristin L.; Lajtha, Kate; Swanson, Frederick J. 2002. Biogeochemistry of unpolluted forested watersheds in the Oregon Cascades: temporal patterns of precipitation and stream nitrogen fluxes. Biogeochemistry. 62: 87-117. (Pub No: 3091)

Meleason, Mark A.; Gregory, Stanley V.; Bolte, John. 2002. Simulation of stream wood source distance for small streams in the western Cascades, Oregon. In: Laundenslayer, William F. Jr.; Shea, Patrick J.; Valentine, Bradley E.; Weatherspoon, C. Phillip; Lisle, Thomas E., tech. coords. Proceedings of the symposium on the ecology and management of dead wood in western forests; Reno, NV. Gen. Tech. Rep. PSW-GTR-181. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 457-466. (Pub No: 2734)

Wondzell, Steven M.; Swanson, Frederick J. 1996. Seasonal and storm dynamics of the hyporheic zone of a 4th-order mountain stream. II: Nitrogen cycling. Journal of the North American Benthological Society. 15(1): 20-34. (Pub No: 2122)

Bisson, Peter A.; Quinn, Thomas P.; Reeves, Gordon H.; Gregory, Stanley V. 1992. Best management practices, cumulative effects, and long-term trends in fish abundance in Pacific Northwest river systems. In: Naiman, Robert J., ed. Watershed management--balancing sustainability and environmental change. New York: Springer-Verlag: 189-232. (Pub No: 1357)

Anderson, N. H. 1992. Influence of disturbance on insect communities in Pacific Northwest streams. Hydrobiologia. 248: 79-92. (Pub No: 1411)

Gregory, Stanley V.; Swanson, Frederick J.; McKee, W. Arthur; Cummins, Kenneth W. 1991. An ecosystem perspective of riparian zones: focus on links between land and water. BioScience. 41(8): 540-551. (Pub No: 954)

Martin, C. Wayne; Harr, R. Dennis. 1989. Logging of mature Douglas-fir in western Oregon has little effect on nutrient output budgets. Canadian Journal of Forest Research. 19: 35-43. (Pub No: 974)

Lienkaemper, G. W.; Swanson, F. J. 1987. Dynamics of large woody debris in streams in old-growth Douglas-fir forests. Canadian Journal of Forest Research. 17: 150-156. (Pub No: 703)

Triska, Frank J.; Sedell, James R.; Cromack, Kermit Jr. 1984. Nitrogen budget for a small coniferous forest stream. Ecological Monographs. 54(1): 119-140. (Pub No: 1354)

Anderson, N. H.; Wisseman, R. W.; Courtney, G. W. 1984. Emergence trap collections of lotic Trichoptera in the Cascade Range of Oregon, U.S.A. In: Morse, J. C., ed. Proceedings, 4th international symposium on Trichoptera; Entomology Series, Vol. 30. The Hague: Dr. W. Junk, Publishers: 13-19. (Pub No: 1676)

Dahm, C. N. 1984. Uptake of dissolved organic carbon in mountain streams. Verhandlungen International Verein Limnologie. 22: 1842-1846. (Pub No: 1728)

Speaker, R. W.; Moore, K. M.; Gregory, S. V. 1984. Analysis of the process of retention of organic matter in stream ecosystems. Verhandlungen International Verein Limnologie. 22: 1837-1841. (Pub No: 2010)

Minshall, G. Wayne; Petersen, Robert C.; Cummins, Kenneth W.; Bott, Thomas L.; Sedell, James R.; Cushing, Colbert E.; Vannote, Robin L. 1983. Interbiome comparison of stream ecosystem dynamics. Ecological Monographs. 53(1): 1-25. (Pub No: 1928)

Murphy, M. L.; Hall, J. D. 1981. Varied effects of clear-cut logging on predators and their habitat in small streams of the Cascade mountains, Oregon. Canadian Journal of Fisheries and Aquatic Sciences. 38: 137-145. (Pub No: 1931)

Murphy, Michael L.; Hawkins, Charles P.; Anderson, N. H. 1981. Effects of canopy modification and accumulated sediment on stream communities. Transactions of the American Fisheries Society. 110: 469-478. (Pub No: 1932)

Naiman, Robert J.; Sedell, James R. 1980. Relationships between metabolic parameters and stream order in Oregon. Canadian Journal of Fisheries and Aquatic Sciences. 37(5): 834-847. (Pub No: 1936)

Keller, Edward A.; Swanson, Frederick J. 1979. Effects of large organic material on channel form and fluvial processes. Earth Surface Processes. 4: 361-380. (Pub No: 565)

Gregory, Stanley V. 1978. Primary production in Pacific Northwest streams. Corvallis, OR: Oregon State University. 152 p. M.S. thesis. (Pub No: 1843)

McIntire, C. David; Colby, Jonathon A. 1978. A hierarchical model of lotic ecosystems. Ecological Monographs. 48(1): 167-190. (Pub No: 1910)

Sedell, James R.; Naiman, Robert J.; Cummins, Kenneth W.; Minshall, C. Wayne; Vannote, Robin L. 1978. Transport of particulate organic material in streams as a function of physical processes. Verhandlungen International Verein Limnologie. 20: 1366-1375. (Pub No: 1993)