1. Applied Physics Laboratory, Polar Science Center, University of Washington, Seattle, WA 98105, USA
2. Greenland Institute of Natural Resources, PO Box 570, 3900 Nuuk, Greenland
3. Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, St. Paul, MN 55108, USA
4. Wildlife Research Section, Department of Environment, Government of Nunavut, Igloolik, NU X0A 0L0, Canada
5. Natural History Museum, PO Box 1172 Blindern, 0318 Oslo, Norway
6. Environment and Climate Change Canada, CW-422 Biological Sciences Building, University of Alberta, Edmonton, AB T6G 2E9, Canada
7. Wildlife Genetics International, Nelson, BC V1L 5P9, Canada