Sex-selective harvesting of polar bears Ursus maritimus

Wildlife Biology

Volumn 14, Issue 1, 2008, Pages 52-60

  Taylor, Mitchell K ^a   McLoughlin, Philip D ^b   Messier, François ^b  

^a Government of Nunavut   (Canada)

^b UNIVERSITY OF SASKATCHEWAN   (Canada)

Author keywords

Polar bear; Population modelling; Sex selective harvesting; Ursus maritimus

Indexed keywords

URSUS MARITIMUS;

EID: 43049102388     PISSN: 09096396     EISSN: None     Source Type: Journal    
DOI: 10.2981/0909-6396(2008)14[52:SHOPBU]2.0.CO;2     Document Type: Article

References (42)

1. Amstrup, S.C. 2003: Polar bear. - In: Feldhamer, G.A., Thompson, B.C. & Chapman, J.A. (Eds.); Wild mammals of North America: biology, management, and conservation. 2nd edition. John Hopkins University Press, Baltimore, MD, pp. 587-610.
2. Amstrup, S.C. & DeMaster, D.P. 1988: Polar Bear (Ursus maritimus). - In: Lentfer, J. (Ed.); Selected marine mammals of Alaska: species accounts with research and management recommendations. Marine Mammal Committee, Washington, DC, pp. 39-56.
3. Amstrup, S.C., Stirling, I. & Lentfer, J.W. 1986: Past and present status of polar bears in Alaska. - Wildlife Society Bulletin 14: 241-254.
4. Caughley, G. 1977: Analysis of vertebrate populations. - John Wiley & Sons, New York, NY, 234 pp.
5. Caughley, G. & Sinclair, A.R.E. 1994: Wildlife ecology and management. - Blackwell Scientific Publications, London, 334 pp.
6. Chapman, D.G. 1955: Population estimation based on change of composition caused by selective removal. - Biometrika 42: 279-290.
7. Clark, C.W. & Tait, D.E.N. 1982: Sex-selective harvesting of wildlife populations. - Ecological Modelling 14: 251-260.
8. DeMaster, D.P. & Stirling, I. 1981: Ursus maritimus. - Mammalian Species 145: 1-8.
9. DeMaster, D.P. & Stirling, I. 1983: The estimation of survival and litter size of polar bear cubs. - International Conference on Bear Research and Management 5: 260-263.
10. Derocher, A.E. 1991: Population dynamics and ecology of polar bears in western Hudson Bay. - Doctoral thesis, University of Alberta, Edmonton, AB, 189 pp.
11. Derocher, A.E. & Stirling, I. 1994: Age-specific reproductive performance of female polar bears (Ursus maritimus). - Journal of Zoology (London) 234: 527-536.
12. Derocher, A.E., Stirling, I. & Calvert, W. 1997: Male-biased harvesting of polar bears in Western Hudson Bay. - Journal of Wildlife Management 61: 1075-1082.
13. Derocher, A.E. & Taylor, M.K. 1994: Density dependent population regulation of polar bears. - International Conference on Bear Research and Management Monograph Series 3: 25-38.
14. Fowler, C.W. 1987: A review of density dependence in populations of large mammals. - In: Genoways, H.H. (Ed.); Current mammalogy. Vol. 1. Plenum Publishing, New York, NY, pp. 401-441.
15. Fraser, D., Gardner, J.F., Kolenosky, G.B. & Strathearn, S. 1982: Estimation of harvest rate of black bears from age and sex data. - Wildlife Society Bulletin 10: 53-57.
16. Harris, R.B. 1984: Harvest age structure as an indicator of grizzly bear population status. - M.Sc. thesis, University of Montana, Missoula, MT, 204 pp.
17. Harris, R.B. & Metzgar, L.H. 1987: Harvest age structures as indicators of decline in small populations of grizzly bears. - International Conference on Bear Research and Management 7: 109-116.
18. Harwood, L.A., Norton, P.A., Day, B. & Hall, P.A. 2002: The harvest of beluga whales in Canada's western arctic: hunter-based monitoring of the size and composition of the catch. - Arctic 55: 10-20.
19. IUCN 2006: Polar bears. - In: Aars, J., Derocher, A. & Lunn, N.J. (Eds.); Proceedings of the 14th Working Meeting of the IUCN/SSC Polar Bear Specialist Group, 20-24 June 2005, Seattle, Washington, USA. IUCN, Gland, Switzerland and Cambridge, U.K. Available at: http://pbsg.npolar.no/docs/ Proc_Seattle05.pdf.
20. Kelker, G.H. 1943: Sex-ratio equations and formulas for determining wildlife populations. - Proceedings of the Utah Academy of Science, Arts & Letters 20: 189-198.
21. Kostyan, E.Y. 1954: New data on the reproduction of the polar bear. - Zoologicheskii Zhurnal 33: 207-215. (In Russian).
22. Langvatn, R. & Loison, A. 1999: Consequences of harvesting on age structure, sex ratio and population dynamics of red deer Cervus elaphus in central Norway. - Wildlife Biology 5: 213-223.
23. Lee, L.J. & Taylor, M.K. 1994: Aspects of the polar bear harvest in the Northwest Territories. - International Conference on Bear Research and Management 9: 237-243.
24. Lentfer, J.W. 1976: Polar bear reproductive biology and denning. - Alaska Department of Fish and Game, Juneau, AK, Final Report 5.4R, 22 pp.
25. Lentfer, J.W., Hensel, R.J., Gilbert, J.R. & Sorenson, F.E. 1980: Population characteristics of Alaskan Polar Bears. - International Conference on Bear Research and Management 4: 109-115.
26. Lønø, O. 1970: The polar bear in the Svalbard area. - Norsk Polarinstitutt Skrifter 149: 1-103.
27. McCullough, D.R. 2001: Population manipulations of North American deer Odocoileus spp.: balancing high yield with sustainability. - Wildlife Biology 7: 161-170.
28. Miller, S.D. 1990: Population management of bears in North America. - International Conference on Bear Research and Management 8: 357-374.
29. Paloheimo, J.E. & Fraser, D. 1981 : Estimation of harvest rate and vulnerability from age and sex data. - Journal of Wildlife Management 45: 948-958.
30. Paulraj, S. & Subramanian, C. 2000: Skewed sex ratio in an elephant population: how it may affect demography and population growth. - Indian Forester 126: 1046-1053.
31. Ramsay, M.A. & Stirling, I. 1988: Reproductive biology of female polar bears (Ursus maritimus). - Journal of Zoology (London) 214: 601-634.
32. Rupp, R.S. 1966: Generalized equation for the ratio method of estimating population abundance. - Journal of Wildlife Managment 30: 523-526.
33. Sæther, B-E., Solberg, E.J. & Heim, M. 2003: Effects of altering sex ratio, structure on the demography of an isolated moose population. - Journal of Wildlife Management 67: 455-466.
34. Stearns, S.C. 1977: The evolution of life history traits. - Annual Review of Ecology and Systematics 8:145-171.
35. Stirling, I. 1988: Polar Bears. - University of Michigan Press, Ann Arbor, Michigan, USA, 220 pp.
36. Stirling I., Andriashak, D., Latour, P. & Calvert, W. 1975: Distribution and abundance of polar bears in the eastern Beaufort Sea. - Beaufort Sea Technical Report 2: 1-59.
37. Taylor, M.K., Bunnell, F., DeMaster, D. & Schweinsburg, R. 1987a: Modeling the sustainable harvest of female polar bears. - Journal of Wildlife Management 51: 811-820.
38. Taylor, M.K., Bunnell, F., DeMaster, D., Schweinsburg, R. & Smith, J. 1987b: ANURSUS: a population analysis system for polar bears (Ursus maritimus). - International Conference on Bear Research and Management 7: 117-125.
39. Taylor, M.K., Carley, J.S. & Bunnell, F.L. 1987c: Correct and incorrect use of recruitment rates for marine mammals. - Marine Mammal Science 3: 171-178.
40. Taylor, M.K. & Carley, J.S. 1988: Life table analysis of age-structured populations in seasonal environments. - Journal of Wildlife Management 52: 366-373.
41. Taylor, M.K., Laake, J., Cuff, H.D., Ramsay, M.A. & Messier, F. 2002: Managing the risk from hunting for the Viscount-Melville Sound polar bear population. - Ursus 13: 185-202.
42. White, G.C., Freddy, D.J., Gill, R.B. & Ellenberger, J.H. 2001: Effect of adult sex ratio on mule deer and elk productivity in Colorado. - Journal of Wildlife Management 65: 543-551.