Acknowledgements

Financial and logistical support for this study was provided by Alberta Society of Professional Biologists, ArcticNet, Canadian Association of Zoos and Aquariums, Canadian Circumpolar Institute, Canadian Wildlife Federation, Care for the Wild International, the Churchill Northern Studies Centre, Earth Rangers Foundation, Environment and Climate Change Canada, EnviroNorth, Hauser Bears, the Isdell Family Foundation, Kansas City Zoo, Manitoba Sustainable Development, Natural Sciences and Engineering Research Council of Canada, Northern Science Training Program, Parks Canada Agency, Pittsburgh Zoo Conservation Fund, Polar Bears International, Quark Expeditions, Schad Foundation, the Takla Foundation, University of Alberta, W. Garfield Weston Foundation, Wildlife Media Inc., World Wildlife Fund (Canada), and World Wildlife Fund Arctic Programme.