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Journal Publications
Gau, R.J., P.D. McLoughlin, R. Case, H.D.
Cluff, R. Mulders, and F. Messier. 2004. Movements of subadult male
Grizzly Bears, Ursus arctos, in the central Canadian Arctic. Canadian
Field-Naturalist 188: 239-242.
Abstract:
Between May 1995 and June 1999, we equipped eight subadult male (3-5 yrs
old) Grizzly Bears (Ursus arctos) with satellite radio-collars within a
study area of 235 000 km2, centered 400 km northeast of Yellowknife,
Northwest Territories, Canada. Subadult male annual home ranges were
extraordinarily large (average = 11 407 km2, SE = 3849) due, in-part, to
their movement’s occasional linear directionality. We believe their
long-range linear movements may reflect some individuals tracking the
migration of Caribou (Rangifer tarandus). Seasonal daily movement patterns
were similar to adult males that were previously reported. The areas used by
these bears are the largest ranges reported for any Grizzly Bears and the
scale of their movements may put individual bears in contact with humans
even when developments are hundreds of kilometres from the central home
range of an animal.
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