Activity patterns of radio-collared black bears in Idaho

Publication Type:

Journal Article

Authors:

Amstrup, Steven C.; Beecham, John

Source:

Journal of Wildlife Management, The Wildlife Society, Volume 40, Issue 2, p.340-348 (1976)

Call Number:

A76AMS01IDUS

Keywords:

black bear, Ursus americanus

Abstract:

Activity patterns of 13 radio-collared black bears (Ursus americanus) in west-central Idaho were studied between June 1973 and December 1974. Bears did not react in a significant way to the disturbances of an investigator. Females were more active than males during the early spring and late fall. Bears were primarily diurnal and crepuscular; however, they were less active and more nocturnal in early spring and late fall than in summer. Phenological patterns of seven key food plants appeared to govern bear movements and habitat preferences. Bears occupied well-defined home ranges that remained stable from year to year. Home range areas of adults varied from 16.6 to 130.3 km2. Daily movements and home range areas of males were usually larger than those of females. Overlap of home ranges was extensive. Bears entered dens between 9 October and 27 November, and emerged in April.

Notes:

Reference Code: A76AMS01IDUS

Full Citation: Amstrup, S. C., and J. Beecham. 1976. Activity patterns of radio-collared black bears in Idaho. Journal of Wildlife Management 40(2): 340-348.

Location: ANIMAL EF: MAMMALS