1. Department of Biological Sciences, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, AK 99508, USA.
2. Alaska Department of Fish and Game, Division of Wildlife Conservation, 1800 Glenn Highway, Suite 4, Palmer, AK 99645, USA.
3. Pacific Northwest Research Station, US Forest Service, 11305 Glacier Highway, Suite 1-A, Juneau, AK 99801, USA.