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Response of Nontarget Species to Underground Strychnine Baiting for Pocket Gopher in Southwest Oregon

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Pocket gophers (Thomomys spp.) impede reforestation efforts in the Pacific Northwest and strychnine baiting is used to reduce their populations. We conducted a capture and release program in southern Oregon to determine whether strychnine baiting negatively impacted nontarget small mammal species. Two nontarget species dominated the program: golden mantled ground squirrels (Spermophilus lateralis) and yellow pine chipmunks (Tamias amoenus). There was a short-term decline in ground squirrel populations after baiting, but yellow pine chipmunk populations were not adversely affected. We conclude that underground baiting with 0.5% strychnine treated grain is unlikely to cause long-term adverse effects on nontarget wildlife species in southwest Oregon. West. J. Appl. For. 17(1):9–13.

Keywords: Hazards; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; nontarget species; pocket gopher; strychnine bait

Document Type: Miscellaneous

Affiliations: 1: Department of Fisheries and Wildlife, Utah State University, Logan, UT, 84322, Ministry of Agriculture (MAMVA), DPVCTRF, Rabat, Morocco 2: USDA/APHIS/WS/NWRC, BNR-163, Utah State University, Logan, UT, 84322 3: USDA Forest Service, Rogue River National Forest, 333 W. 8th Street, Box 520 Medford, Oregon, 87501

Publication date: January 1, 2002

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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