Education:
- Ph.D. in Zoology - Colorado State University, Fort Collins. 1982.
Dissertation: Selection Pressures Affecting a Dorsal Color Polymorphism in Rana pipiens. (David Pettus, Major Professor)
- M.S. in Zoology - Colorado State University. 1977.
- B.S. with Distinction in Biology - University of Illinois, Urbana-Champaign. 1974.
Research Interests:
- Herpetology
- Distribution and status of amphibians in western North America
- Techniques for monitoring amphibian populations
- Techniques for estimating abundance of desert tortoises
- Translocation as a tool for managing declining amphibian and reptile populations
- Effects of timber harvest on amphibians, reptiles, and small mammals
Current Projects:
Professional Experience:
- 1996-present Research Zoologist. Aldo Leopold Wilderness Research Institute (Northern Rocky Mountain Science Center, USGS-BRD), Missoula, MT
- 1993-1996 Research Zoologist, Midcontinent Ecological Science Center, National Biological Service, Ft. Collins, CO
- 1991-1993 Zoologist. National Ecology Research Center, U.S. Fish and Wildlife Service, Ft. Collins, CO
- 1988-1989 Wildlife Biologist. Pacific Northwest Research Station, Forestry Sciences Laboratory, U.S. Forest Service, Olympia, Washington
- 1983-1991 Wildlife Biologist. Denver Wildlife Research Center/National Ecology Research Center, U. S. Fish and Wildlife Service, Ft. Collins, CO
Service:
- Participant on planning teams for the Department of the Interior Amphibian Research and Monitoring Initiative
- Editor, Herpetological Conservation (Society for the Study of Amphibians and Reptiles); Northwestern Naturalist (1993-1997; Society for Northwestern Vertebrate Biology)
- Symposium Organizer, Amphibian Monitoring in Western National Parks, 1993; Effects of Fisheries Management on the Amphibians and Other Biota of Wilderness Lakes, 1998
- Member, Wyoming toad and boreal toad recovery teams
- Faculty affiliate: University of Montana, Idaho State University
- Co-Chair, Rocky Mountain Working Group, Declining Amphibian Populations Task Force
- Scientific Analysis Team; Forest Ecosystem Management Assessment Team; Interior Columbia Basin Ecosystem Management Project: amphibian viability panels
Selected Publications:
To access other publications by Steve Corn, please click here.
Corn, P.S. and J.C. Fogleman. 1984. Extinction of montane populations of leopard frogs (Rana pipiens) in Colorado. J Herpetol 18: 147-152.
Corn PS, Bury RB. 1986. Morphological variation and zoogeography of racers (Coluber constrictor) in the central Rocky Mountain region. Herpetologica 42:254-260.
Bury, R.B. and P.S. Corn. 1987. Evaluation of pitfall trapping in northwestern forests: arrays of traps with drift fences. J Wildl Manage 51: 112-119.
Corn, P.S. and R.B. Bury. 1989. Logging in western Oregon: responses of headwater habitats and stream amphibians. For Ecol Manage 29: 39-57.
Corn, P.S. and R.B. Bury. 1991. Terrestrial amphibian communities in the Oregon Coast Range. In: Ruggiero L.F., K.B. Aubry, A.B. Carey, M.H. Huff, technical coordinators. Wildlife and vegetation of unmanaged Douglas-fir forests. Portland, OR: USDA For Serv Pacific Northwest Res Sta. Gen Tech Rep PNW-GTR-285. p 305-317.
Corn, P.S. and F.A. Vertucci. 1992. Descriptive risk assessment of the effects of acidic deposition on Rocky Mountain amphibians. J Herpetol 26: 361-369.
Corn, P.S. 1994. Straight-line drift fences and pitfall traps. In: Heyer W.R., Donnelly M.A., McDiarmid R.W., Hayek L.C., Foster M.S., editors. Measuring and monitoring biological diversity: standard methods for amphibians. Washington: Smithsonian Inst Pr. p 109-117.
Corn, P.S. 1994. What we know and don't know about amphibian declines in the West. In: Covington W.W., L.F. DeBano, technical coordinators. Sustainable ecological systems: implementing an ecological approach to land management. Proceedings of a symposium 12-15 July 1993; Flagstaff, AZ. Fort Collins, CO: USDA For Serv Rocky Mountain For Range Exp Sta. Gen Tech Rep RM-247. p. 59-67.
Corn, P.S. 1994. Recent trends in desert tortoise populations in the Mojave Desert. In: Bury R.B., Germano D.J., editors. Biology of North American tortoises. Washington: USDI Nat Biol Survey. Fish Wildl Res 13. p 85-93.
Bury, R.B. and P.S. Corn. 1995. Have desert tortoises undergone a long-term decline in abundance? Wildl Soc Bull 23: 41-47.
Corn, P.S. and C.R. Peterson. 1996. Prairie legacies-amphibians and reptiles. In: Samson F.B., F.L. Knopf, editors. Prairie Conservation: Preserving North America's Most Endangered Ecosystem. Covelo, CA: Island Press. p 125-134.
Vertucci, F.A. and P.S. Corn. 1996. Evaluation of episodic acidification and amphibian declines in the Rocky Mountains. Ecol Appl 6: 449-457.
Corn, P.S., M.L. Jennings, and E. Muths. 1997. Distribution and status of amphibians in Rocky Mountain National Park. Northwestern Naturalist. 78: 34-55.
Corn PS. 1998. Effects of ultraviolet radiation on boreal toads in Colorado. Ecological Applications 8:18-26.
Corn PS. 2000. Amphibian declines: review of some current hypotheses. In: Sparling DW, Bishop CA, Linder G, editors. Ecotoxicology of amphibians and reptiles. Pensacola FL: Society of Environmental Toxicology and Chemistry. p 639-672.
Knapp RA, Corn PS, Schindler DE. In press. The introduction of fish into wilderness lakes in the western United States: good intentions, conflicting mandates, and unintended consequences. Ecosystems.
Selected Presentations:
Amphibian Decline: STILL an Unexplained Phenomenon - From the Rain Forest to Rocky Mountain National Park (Powerpoint Slide Presentation- HTML)
Professional Affiliations:
Contact Information:
Missoula Field Station, USGS
Aldo Leopold Wilderness Research Institute
790 E. Beckwith Ave.
Missoula, MT 59801
Phone: 406-542-4191, 542-4190
Fax: 406-542-4196
E-mail: steve_corn@usgs.gov
ALSO: Stephen Corn - Northern Rocky Mountain Science Center - Staff Page
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