Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Dr. Chris Grue

Research Publications

  • Yahnke, A. A. Troiano, J.M. Grassley, C.E Grue, and M.P. Hayes. 2012. Effects of imazapyr tank mixes on juvenile Oregon spotted frogs. Environmental Toxicology and Chemistry 32:228-235.
  • Kertson, B.N., R.D. Spencer, and C.E. Grue. 2013. Demographic influences on cougar residential use and interactions with people in western Washington. Journal of Mammalogy 94:269-281.
  • Sternberg, M, C. Grue, J. Grassley, L. Conquest, and K. King. 2012. Efficacy, fate, and potential effects on salmonids of mosquito larvicides in catch basins in Seattle, Washington. Journal of the American Mosquito Association 28:206-218.
  • Frew, J.A. and C.E. Grue. 2012. Development of a new method for the determination of residues of the neonicotinoid insecticide imidacloprid in juvenile Chinook (Oncorhynchus tshawytscha) using ELISA detection. Journal of Environmental Monitoring 14:1024-1034.
  • Kertson, B.N., R.D. Spencer, and C.E. Grue. 2011. Cougar prey use in a wildland-urban environment in western Washington. Northwestern Naturalist 92: 175-185.
  • Kertson B.K., R.D. Spencer, J.M. Marzluff, J. Hepinstall-Cymerman, and C.E. Grue. 2011. Cougar space use and movements in the wildland-urban interface of western Washington. Ecological Applications 21: 2866-2881.
  • Kertson, B. N., C. E. Grue and D. J. Pierce. 2006. Status of citizen science in state natural resource management agencies: Opportunities and challenges. Transactions of the North American Wildlife Natural Resources Conference 70:88-109.
  • Major, W. W., III, C. E. Grue, S. C. Gardner and J. M. Grassley. 2003. Concentrations of glyphosate and AMPA in sediment following application of Rodeo(R) to control smooth cordgrass in Willapa Bay, Washington. Bulletin of Environmental Contamination and Toxicology 71:912-918.
  • Tamayo, M., C. E. Grue and K. Hamel. 2004. Densities of the milfoil weevil (Euhrychiopsis lecontei) on native and exotic watermilfoils. Journal of Freshwater Ecology 19:203-211.
  • Smith, B. C., C. A. Curran, K. W. Brown, J. L. Cabarrus, J. B. Gown, J. K. McIntyre, E. E. Moreland, V. L. Wong, J. M. Grassley and C. E. Grue. 2004. Toxicity of four surfactants to juvenile rainbow trout: Implications for over-water use. Bulletin of Environmental Contamination and Toxicology 72:647-654.
  • Curran, C. A., J. M. Grassley and C. E. Grue. 2004. Toxicity of R-11(R) surfactant to juvenile rainbow trout: Does size matter? Bulletin of Environmental Contamination and Toxicology 72:401-408.
  • Major, W. W., III, C. E. Grue, J. M. Grassley and L. L. Conquest. 2003. Efficacy of mechanical and chemical techniques to control smooth cordgrass (Spartina alterniflora) in Willapa Bay, Washington. Journal of Aquatic Plant Management 41:6-12.
  • Stabbins, H. C., C. E. Grue, D. A. Manuwal and S. L. Paulis. 2002. Time allocation by Aleutian Canada geese during the non-breeding season in California. California Fish and Game 88:186-195.
  • Burger, J., K. Kannan, J. P. Giesy, C. Grue and M. Gochfeld. 2002. Effectsof pollutants on avian behaviour. Chapter 9 (pages 335-375) in G. DellOmo(ed. ) Behavioural Ecotoxicology, John Wiley & Sons, Ltd., West Sussex, UK
  • Grue, C. E., S. C. Gardner and P. L. Gibert. 2002. On the significance ofpollutant-induced alterations in the behavior of fish and wildlife. Chapter 1 (pages 1-90) in G. DellOmo (ed. ) Behavioural Ecotoxicology, John Wiley & Sons, Ltd., West Sussex, UK
  • Gardner, S. C., C. E. Grue and W. W. Major III. 2001. Aquaticinvertebrates associated with purple loosestrife (Lythrum salicaria), cattail (Typha latifolia), and bulrush (Scirpus acutus) in centralWashington, USA. Wetlands 21:593-601
  • Tamayo, M., C. E. Grue and K. Hamel. 2000. Do water quality andwatermilfoil frequency of occurrence influence the distribution of theaquatic weevil Euhrychiopsis lecontei in Washington State? Journal ofAquatic Plant Management 38:112-116
  • Cassidy, K. M., and C. E. Grue. 2000. The role of private and public landsin conservation of at-risk vertebrates in Washington State. WildlifeSociety Bulletin 28:1060-1076
  • Grue, C., D. Pflugh, W. Turner, P. Iolavera, and F. Westerlund. 1999. Incorporating protection of biodiversity into county land use planning: A Gap Analysis pilot project in Pierce County, Washington. Gap Analysis Bulletin 8:43-47.

Current Staff

Federal Staff: 101

Masters Students: 234

Phd Students: 160

Post Docs: 60

University Staff: 268

5 Year Summary

Students graduated: 672

Scientific Publications: 1904

Presentations: 4324


Contact Us

Cooperative Research Units Program Headquarters Reston, VA 20192 Phone: (703) 648 - 4260 Fax: (703) 648 - 4269 Our University Web Site


John Organ
CRU Chief John Organ processing a Canada lynx kitten during a long term research collaboration between the Maine Department of Inland Fisheries and Wildlife and the Fish and Wildlife Service.

John F. Organ is the Chief of the U.S.G.S. Cooperative Fish and Wildlife Research Units. He was Chief of Wildlife and Sport Fish Restoration for the Northeast Region of the U.S. Fish and Wildlife Service from 2005 to 2014, and worked in the FWS’s Ecological Services and National Wildlife Refuge programs during his 35 year career. He is also an Adjunct Associate Professor of Wildlife Conservation at the University of Massachusetts, Amherst, Michigan State University, and Andres Bello University in Santiago, Chile. He is a certified Wildlife Biologist and Past President and Fellow of The Wildlife Society. He is also a Professional Member of the Boone and Crockett Club and a Senior Specialist in the Fulbright Scholar Program. He is a member of the IUCN Otter Specialist and Sustainable Use and Livelihoods Groups, and an instructor and Advisory Board member of the Conservation Leaders for Tomorrow Program. He is also a consultant to the Peru Forest Sector Initiative where he is assisting the Peruvian government in training biologists and developing wildlife regulations. He advises M.S. and Ph.D. students studying carnivores and human dimensions in Africa, Canada, Chile, and the U.S. and teaches graduate courses in Wildlife Management and Conservation and Human Dimensions of Wildlife Conservation.


  1. U.S. Geological Survey
  2. U.S. Geological Survey - Ecosystems
  3. U.S. Department of the Interior

Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey