Calving distribution of Alaska's Steese-Fortymile caribou herd: A case of infidelity?

摘要: The Steese-Fortymile caribou (Rangifer tarandus granti) herd has changed its calving distribution frequently during the past 30 years. A «traditional» area, used for decades, west of Steese Highway (Preacher Creek) was abandoned after 1963. By early 1970's, a new area had been established 74 km to southeast in Birch Creek drainage. This 1976. From 1977 through 1983, occurred annually variable locations approximately 136 area. In 1984, however, again calved general vicinity General characteristics various areas are described, and is discussed relation size, development disturbance, predator abundance, other factors. Location recent years unpredictable, which warrants reconsidering merit protecting only previously important grounds.