The information in this document is based on data collected by the Ministry of Natural Resources’ polar bear program and on information from scientific reports.
Amstrup, S. C. 2003. Polar bear Ursus maritimus. Pp. 587-610 in Wild Mammals of North America: Biology, Management, and Conservation (2nd Ed.), John Hopkins University Press, Baltimore, MD. G. A. Feldhamer, B. C. Thompson, and J. A. Chapman, eds.
Atkinson, S. N. and M. A. Ramsay. 1995. The effects of prolonged fasting of the body composition and reproductive success of female polar bears (Ursus maritimus). Functional Ecology 9: 559-567.
Gagnon, A. S. and W. A. Gough. 2005. Trends in the dates of ice freeze-up and breakup over Hudson Bay, Canada. Arctic 58: 370-382.
Kolenosky, G. B. and J. P. Prevett. 1983. Productivity and maternity denning of polar bears in Ontario. International Conference on Bear Research and Management 5: 238-245.
Kolenosky, G. B., K. F. Abraham and C. J. Greenwood. 1992. Polar bears of southern Hudson Bay. Polar bear project, 1984-88, final report. Ontario Ministry of Natural Resources, Maple, ON.
Obbard, M.E. and L.R. Walton. 2004. The importance of Polar Bear Provincial Park to the Southern Hudson Bay polar bear population in the context of future climate change. Pp. 105-116 in Parks and protected areas research in Ontario, 2004: planning northern parks and protected areas: proceedings of the Parks Research Forum of Ontario annual general meeting, May 4-6, 2004, Thunder Bay, ON. C.K. Rehbein, J.G. Nelson, T.J. Beechey and R.J. Payne, eds.
Obbard, M. E., M. R. L. Cattet, T. Moody, L. R. Walton, D. Potter, J. Inglis and C. Chenier. 2006. Temporal trends in the body condition of southern Hudson Bay polar bears. Climate Change Research Information Note 3: 1-8.
Obbard, M. E., T. L. McDonald, E. J. Howe, E. V. Regehr and E. S. Richardson. 2007. Polar bear population status in Southern Hudson Bay, Canada. United States Geological Survey Administrative Report.
Polischuk, S. C., R. J. Norstrom and M. A. Ramsay. 2002. Body burdens and tissue concentrations of organochlorines in polar bears (Ursus maritimus) vary during seasonal fasts. Environmental Pollution 118: 29-39.
Regehr, E. V., N. J. Lunn, S. C. Amstrup and I. Stirling. 2007. Effects of earlier sea ice breakup on survival and population size of polar bears in western Hudson Bay. Journal of Wildlife Management 71: 2673-2683.
Stirling, I. and A. E. Derocher. 1993. Possible impacts of climatic warming on polar bears. Arctic 46: 240-245.
Stirling, I., N. J. Lunn, J. Iacozza, C. Elliott and M. Obbard. 2004. Polar bear distribution and abundance on southwestern Hudson Bay coast during open water season, in relation to population trends and annual ice patterns. Arctic 57:15-26.
For more information on the status of polar bears in Ontario, please contact:
State of Resources Reporting
Ontario Ministry of Natural Resources
Inventory, Monitoring and Assessment Section
300 Water Street,
Peterborough, ON K9J 8M5
Email:
SORR@ontario.ca
Web:
www.mnr.gov.on.ca/en/Business/SORR/index.html
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