Cooperative Fish and Wildlife Research Units Program: Oregon
Education, Research and Technical Assistance for Managing Our Natural Resources

Oregon Project

Evaluation of Caspian tern management to reduce predation on ESA-listed salmonids in the Columbia Plateau region

February 2013 - March 2019


Participating Agencies

  • Public Utility District No. 2 of Grant County, Washington

This study is designed to evaluate the foraging behavior and colony connectivity of Caspian terns (Hydroprogne caspia) nesting on Goose Island in Potholes Reservoir, with particular emphasis on predation by terns from this colony on ESA-listed juvenile salmonids (Oncorhynchus spp.) from the upper Columbia River.

Research Publications Publication Date
Hostetter, N.J., B. Gardner, A.F. Evans, B.M. Cramer, Q. Payton, K. Collis, and D.D. Roby. Wanted dead or alive: A state-space mark-recapture-recovery model incorporating multiple recovery types and state uncertainty. July 2018
Connon, R.E., L.S. D’Abronzo, N.J. Hostetter, A Javidmehr, D.D. Roby, A.F. Evans, F.J. Loge, and I. Werner. 2012. Transcription profiling in environmental diagnostics: Health assessments in Columbia River basin steelhead (Oncorhynchus mykiss). Environmental Science and Technology 46:6081-6087. | Abstract October 2012
Theses and Dissertations Publication Date
Schniedermeyer, E. 2018. The response of Caspian Terns to managed reductions in nesting habitat in the Columbia Plateau region, Washington State, USA. M.S. thesis, Oregon State University, Corvallis, Oregon. 87 pp. June 2018
Hostetter, N.J. 2010. Susceptibility of juvenile salmonids to avian predation: Are Caspian terns and double-crested cormorants only taking the sick and injured? M.S. Thesis, Oregon State University, Corvallis OR. 123 pp. December 2009