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Cannibalism and predation on black bears by grizzly bears in the Yellowstone ecosystem, 1975-1990

January 1, 1992

We documented one instance of an adult male grizzly bear preying upon a black bear and four instances where circumstantial evidence suggested that grizzly bears (two cubs-of-the-year, one yearling female that was injured, and one adult male) had been preyed upon by conspecifics. We also examined feces of grizzly bears for bear remains. Remains of bears tended to be more common in spring feces and did not differ in frequency between early and late years of the study. Our observations generally support existing hypotheses concerning cannibalism among bears.

Citation Information

Publication Year 1992
Title Cannibalism and predation on black bears by grizzly bears in the Yellowstone ecosystem, 1975-1990
DOI 10.2307/1382078
Authors D.J. Mattson, R.R. Knight, B.M. Blanchard
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Mammalogy
Series Number
Index ID 70127572
Record Source USGS Publications Warehouse
USGS Organization Northern Rocky Mountain Science Center