Are Polar Bears Endangered? Population Status
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The polar bear population was estimated between 25,000-35,000 in recent decades, with the minimum population occurring in the 1950s. While the current population is not declining, climate change is expected to reduce sea ice habitat and threaten polar bears, making them a likely candidate for the threatened species list.
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Are Polar Bears Endangered? Population Status
- 1. Are Polar Bears Endangered? Sangjin Han
- 6. 35,000 Maximum 30,000 Minimum Estimated Population 25,000 20,000 15,000 10,000 5,000 0 1950 1960 1970 1980 1990 2000 2010 Year
- 9. Conclusion • The polar bear population… – has declined? Unlikely – is declining? Not sure – will decline? Likely • Deserve to be listed as a threatened species?
Editor's Notes
- http://www.metro.co.uk/news/147937-struggling-polar-bears-put-on-endangered-list
- Time magazineApr. 3, 2006
- The Christian Science Monitor - http://www.csmonitor.com/2007/0503/p13s01-wogi.html
- news.discovery.com
- Knut – Zoo Berlin
- 17,000 - 19,000 Scott et al. 195920,000 Larsen 197220,000 Uspenskii 1979 (originally 5000-10000 in 1961, corrected in 1979)20,000 Nowak & Paradiso 198320,000 - 30,000 Watson 199622,000 - 27,000 Garner 19971998: 22,130 - 27,030 (Truett & Johnson 2002) 2001: At least 22,000 (Schliebe 2001) 2002: 21,500 - 25,000 (Lunn et al. 2002) 2005: 20,000 - 25,000 (Polar Bear Spec. Gr. 2005) 2006: 20,000 - 25,000 (IUCN 2006)http://www.lomborg-errors.dk/coolitAchap1.htmhttp://www.animalinfo.org/species/carnivor/ursumari.htm