Alaska Fish & Game conducts wildlife surveys annually. For the large moose and caribou populations, specific population estimates are conducted roughly every three years using the latest scientific techniques. Dall sheep, mountain goats, elk, bison, and muskoxen are periodically surveyed to measure population status, trends, and productivity. Black and brown bear populations are difficult to estimate because they often live in heavily vegetated areas in the summer and den during winter. For bears, we obtain population information from intensive research projects in selected areas, and we are developing methods to extrapolate this information to larger areas.

Information reprinted from Alaska Department Of Fish & Game