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Providing evidence to improve practice

Individual study: Homing of transplanted Alaskan brown bears

Published source details

Miller S. & Ballard W. (1982) Homing of transplanted Alaskan brown bears. The Journal of Wildlife Management, 46, 869-876

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Translocate problem mammals away from residential areas (e.g. habituated bears) to reduce human-wildlife conflict Terrestrial Mammal Conservation

A study in 1979–1981 of a large boreal and subarctic forest area in Alaska, USA (Miller & Ballard 1982) found that translocated Alaskan brown bears Ursus arctos did not settle at their release site and most returned to their capture area. Twelve of 20 translocated adult bears returned to their capture area in 13–133 days. Returning bears had been released, on average, closer to their capture site (145–255 km) than had non-returning bears (168–286 km). No translocated female bears were known to have produced young in the following year. Forty-seven bears were caught between 22 May and 22 June 1979, marked and transported by vehicle or aircraft. Adults were radio-collared and relocation data were adequate for monitoring movements and survival of 20 of these. Bears were monitored by radio-tracking from an airplane in May–October 1979 and from other radio-tracking data and hunter kills in 1979–1981.

(Summarised by Aedan Hannon; Jack Gavigan)