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Beyond 2000 Symposium

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Conflicts Between Wolves and Humans - Thursday Session

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Beyond 2000:
Realities of Global Wolf Restoration

23-26 February 2000
Duluth, Minnesota USA

 

Assessing factors that may predispose Minnesota farms to wolf depredations on cattle

L. David Mech, U.S. Geological Survey, Biological Resources Division, Northern Prairie Wildlife Research Center, 8711 37th Street Southeast, Jamestown, ND 58401, USA; Elizabeth K. Harper, Thomas J. Meier, Department of Fisheries and Wildlife, University of Minnesota, 1980 Folwell Avenue, St. Paul, MN 55108, USA; William J. Paul, USDA/APHIS, Wildlife Services, 34912 U.S. Highway 2, Grand Rapids, MN 55744, USA

The objective of this study was to recommend practices to minimize wolf (Canis lupus) depredations on livestock in Minnesota. Our approach was to try to detect factors that predispose farms to wolf depredations and suggest how to overcome them. Thus we compared results of interviews with 41 of 43 cattle farmers experiencing chronic cattle losses to wolves with those of 41 at nearby "matched" farms with no wolf losses, in order to determine any farm characteristic or husbandry practice that differed between the two. We also used a Geographic Information System (GIS) to detect any habitat differences between the two types of farms.

We found no differences between the chronic and matched farms in the 11 farm characteristics and management practices for which we surveyed, except that chronic farms were larger, had more cattle, and had herds farther from the house. Habitat types were the same around farms with and without losses. The role of proper carcass disposal remains unclear as a possible factor predisposing farms to wolf depredations.

The only husbandry improvement this study lends any support to is that farmers with 240 acres or more or those raising at least 35 head of cattle should pay special attention to proper disposal of carcasses; however, the evidence for this recommendation remains questionable.