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The use of spatial data from the IUCN Red List web site to produce species distribution maps is subject to the Attribution-Share Alike Creative Commons License.In short: you are free to distribute and modify the file as long as you attribute its authors and the IUCN Red List
The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed.The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb).
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The key danger for polar bears posed by the effects of climate change is malnutrition or starvation due to habitat loss.Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall.
Polar bear in Manitoba, Canada. November 2004. Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its ...
Polar bears are listed on the Federal Species at Risk Act (SARA) added in 2011. [18] Polar bears are also protected under The Convention on International trade in Endangered Species . [19] The assessment of the polar bears is in large part due to the increasing loss of sea ice that is a vital part of their habitat and hunting patterns. [17]
Projected change in polar bear habitat from 2001–2010 to 2041–2050. Arctic warming negatively affects the foraging and breeding ecology of native Arctic mammals, such as Arctic foxes or Arctic reindeer. [91] In July 2019, 200 Svalbard reindeer were found starved to death apparently due to low precipitation related to climate change. [92]