Abstract
Feeding habits of wolves (Canis lupus) in central Ontario compared with results from the early 1960's indicated variation in use of prey species between nearby areas. A total of 1,943 scats was collected between May and September, 1963 to 1972, in 3 study areas in central Ontario. The occurrence of beaver (Castor canadensis) hair in scats increased and of deer (Odocoileus virginianus) hair in scats decreased as follows: Algonquin Park, beaver 7 to 55 percent, deer 76 to 33 percent; Pakesley, beaver 59 to 75 percent, deer 27 to 11 percent; Marten River, beaver 37 to 74 percent, deer 42 to 1 percent. Moose (Alces alces) hair in scats collected from all three areas occurred infrequently. Juvenile deer and moose generally were selected over adults. The change in foods of wolves apparently resulted from a decrease in availability of deer in all areas. A concurrent increase in beaver occurred on only one
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