Environmental Impact - Wildlife/Vegetation Effects
Berwick, S. H. (1968). Observations
on the decline of the Rock Creek, Montana, population of bighorn sheep.
University of Montana, Missoula: 245pp.
Abstract
Among factors that may be responsible for an observed decline in a Montana
bighorn
sheep population are human disturbance and harassment of sheep. Snowmobile
use of
an important segment of sheep winter range is increasing. It is suggested
that
harassment may be debilitating to winter-stressed animals.
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