1. Department of Forestry and Environmental Conservation, Clemson University, 261 Lehotsky Hall, Clemson, SC 29634, USA.
2. U.S. Fish and Wildlife Service, National Wildlife Refuge System, Anchorage, AK 99503, USA.
3. Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada.
4. Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA.
5. U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, PA 16802, USA.
6. U.S. Department of Agriculture, Wildlife Services, National Wildlife Research Center, Department of Wildland Resources, Utah State University, Logan, UT 84322, USA.
7. Colorado Parks and Wildlife, Fort Collins, CO 80526, USA.
8. Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.
9. Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
10. Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA.
11. Office of the Vice President for Research and Creative Scholarship, University of Montana, Missoula, MT 59812, USA.
12. Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, USA.
13. U.S. Geological Survey, Patuxent Wildlife Research Center, Tunison Laboratory of Aquatic Science, Cortland, NY 13043, USA.
14. Biology Department, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USA.