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Experimental Fox Snaring/Trapping Program at Tewaukon
National Wildlife Refuge

FRED G. GIESE, JOHN LALOR, AND HARRIS HOISTAD

U.S. Fish and Wildlife Service, Tewaukon National Wildlife Refuge,
Cayuga, ND 58013

Experimental spring trapping was conducted for 2 weeks on the 3,753-ha Tewaukon National Wildlife Refuge (TNWR) to determine the number of male and female red fox (Vulpes vulpes) that could be removed by intense trapping using 210 snares and 100 leghold traps and if duck nesting success was significantly increased as a result of snaring. A total of 87 red fox were caught from 27 April to 11 May 1990 (26 adult males, 37 adult females, and 26 pups). The experimental program was closely monitored to observe if accidental deer catches would be a problem; no deer were caught and there were no unusual occurrences. Drought conditions resulted in few nesting attempts and reduced waterfowl nesting populations so we could not determine if the removal of fox significantly increased the nesting success.
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