Fig. 3.a.Winter severity index values for the Minnesota wolf
range. Data from 1987-89 are discussed in the Epilogue. b.
Indices to recent wolf depredations on livestock in Minnesota. Depredation
data are based on reports received by the U.S. Fish and Wildlife Service
(FWS) from 1975 through 1985 and subsequently by the U.S. Department
of Agriculture Animal and Plant Health Inspection Service (APHIS).
Minnesota Department of Agriculture data are not included. Total number
of complaints received represent all complaints received involving
wolves and livestock, regardless of whether wolves killed an individual.
Number of complaints verified are the number of instances in which
the FWS or APHIS investigation of a complaint produced evidence that
wolves had killed or wounded one or more livestock. Each year after
1975 more than one complaint was verified at some farms. Data from
1987-89 are discussed in the Epilogue.
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U.S. Department of the Interior | U.S. Geological Survey