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Picture of Researcher

Sherri Johnson

Phone: (541) 758-7771
Fax: (541) 758-7760
Primary Email:
Alternative Email:

US Forest Service
Pacific NW Research Station
3200 SW Jefferson Way
Corvallis, OR 97331

Link to Personal Web Page

Official position at address above: Research Ecologist
Educational Institutions attended: Ph.D., 1995, Dept. of Zoology, University of Oklahoma
MS, 1991, University of Oklahoma
BA, 1989, Environmental Biology, University of Montana
Roles/Affiliations: Designated lead scientist for Andrews Experimental Forest for US Forest Service, Pacific Northwest Research Station

Courtesy Faculty, Dept of Fisheries and Wildlife, Oregon State University
Principal Collaborators: Judy Li, Stanley V. Gregory, Frederick J. Swanson, Julia A. Jones, Tom Spies, Barbara Bond
General Interests: Aquatic ecology
Current Research Projects/Activities: Nutrient dynamics and water quality
Forest-stream interactions
Aquatic food webs

Intersite LTER/International Activities: LINX II, N-15 additions
Landscape scale nutrient dynamics
Stream food webs


Amatya, D.M.; Campbell, J.; Wohlgemuth, P.; Elder, K.; Sebestyen, S.; Johnson, S.; Keppeler, E.; Adams, M.B.; Caldwell, P.; Misra, D. 2016. Hydrological processes of reference watersheds in Experimental Forests, USA. In: Amatya; Williams; Bren; de JongForest eds. Hydrology: Processes, Management, and Applications. CABI Publishers, UK: 219-239. (Pub No: 4948)
Argerich, Alba; Haggerty, Roy; Johnson, Sherri L.; Wondzell, Steve M.; Dosch, Nicholas; Corson-Rikert, Hayley; Ashkenas, Linda; Robert, Pennington; Thomas, Christoph K. 2016. Comprehensive multiyear carbon budget of a temperate headwater stream. Journal of Geophysical Research: Biogeosciences. 121: 1-10. doi: 10.1002/2015JG003050 (Pub No: 4929)
Frey, Sarah J. K.; Hadley, Adam S.; Johnson, Sherri L.; Schulze, Mark; Jones, Julia A.; Betts, Matthew G. 2016. Spatial models reveal the microclimatic buffering capacity of old-growth forests. Science Advances. 2(4): 9p. doi: 10.1126/sciadv.1501392 (Pub No: 4925)
Arismendi, I.; Johnson, S. L.; Dunham, J. B. 2015. Technical Note: Higher-order statistical moments and a procedure that detects potentially anomalous years as two alternative methods describing alterations in continuous environmental data. Hydrol. Earth Syst. Sci. 19: 1169-1180. doi:10.5194/hess-19-1169-2015 (Pub No: 4895)
Arismendi, Ivan; Safeeq, Mohammad; Dunham, Jason B.; Johnson, Sherri L. 2014. Can air temperature be used to project influences of climate change on stream temperature? Environmental Research Letters. 9. 12 p. http://doi.org/10.1088/1748-9326/9/8/084015 (Pub No: 4869)
Dodds, W.K.; Collins, S.M.; Hamilton, S.K.; Tank, J.L.; Johnson, S.; Webster, J.R.; Simon, K.S.; Whiles, M.R.; Rantala, H.M.; McDowell, W.H.; Peterson, S.D.; Riis, T.; Crenshaw, C.L.; Thomas, S.A.; Kristensen, P.B.; Cheever, B.M.; Flecker, A.S.; Griffiths, N.A.; Crowl, T.; Rosi-Marshall, E.J.; El-Sabaawi, R.; Martí, E. 2014. You are not always what we think you eat: selective assimilation across multiple whole-stream isotopic tracer studies. Ecology 95(10):2757–2767. http://dx.doi.org/10.1890/13-2276.1 (Pub No: 4872)
Vose, James M.; Swank, Wayne T.; Adams, Mary Beth; Amatya, Devendra; Campbell, John; Johnson, Sherri; Swanson, Frederick J.; Kolka, Randy; Lugo, Ariel E.; Musselman, Robert; Rhoades, Charles. 2014.The Role of Experimental Forests and Ranges in the Development of Ecosystem Science and Biogeochemical Cycling Research. In: Hayes, Deborah C.; Stout, Susan L.; Crawford, Ralph F.; Hoover, Anne P. eds. 2014. USDA Forest Service Experimental Forests and Ranges: Research for the Long-Term. New York: Springer. Chapter 17: 387-403. DOI 10.1007/978-1-4614-1818-4_17 (Pub No: 4900)
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)
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)
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)
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)
Sobota, Daniel J.; Johnson, Sherri L.; Gregory, Stan V.; Ashkenas, Linda R. 2012. A stable isotope tracer study of the influences of adjacent land use and riparian condition on fates of nitrate in streams. Ecosystems. 15: 1-17, doi:10.1007/s10021-011-9489-8. (Pub No: 4468)
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)
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)
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)
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)
Johnson, Sherri L. 2004. Factors influencing stream temperatures in small streams: substrate effects and a shading experiment. Canadian Journal of Fisheries and Aquatic Sciences. 61: 913-923. (Pub No: 3601)
Johnson, Sherri L. 2003. Stream temperature: scaling of observations and issues for modelling. Hydrological Processes. 17: 497-499. (Pub No: 3210)
Johnson, Sherri L.; Jones, Julia A. 2000. Stream temperature responses to forest harvest and debris flows in western Cascades, Oregon. Canadian Journal of Fisheries and Aquatic Sciences. 57(Suppl. 2): 30-39. (Pub No: 2640)
Johnson, Sherri L.; Swanson, Frederick J.; Grant, Gordon E.; Wondzell, Steven M. 2000. Riparian forest disturbances by a mountain flood -- the influence of floated wood. Hydrological Processes. 14: 3031-3050. (Pub No: 2639)
Johnson, Sherri L.; Grant, Gordon E.; Swanson, Frederick J.; Wemple, Beverley C. 1997. Lessons from a flood: an integrated view of the February 1996 flood in the McKenzie River basin. In: Laenen, A., ed. The Pacific Northwest floods of February 6-11, 1996: Proceedings of the Pacific Northwest water issues conference; 1997 October 7-8; Portland, OR. St. Paul, MN: American Institute of Hydrology: 159-167. (Pub No: 2330)