Polar bears have been observed to hunt the small Polar bear extinction reindeer R. Most polar bears elsewhere will never have access to these alternatives, except for the marine mammal carcasses that are important wherever they occur. Today, the primary conservation concern for polar bears is loss of their sea-ice habitat and reduced access to their primary prey, due to climate change and not harvest.
They rely heavily on ringed seals for the consumption. View image of Harvesting of polar bears reduced their number Credit: They lack data on some populations, specifically those in Russia and East Greenland. However, according to Nunavut government study km, aerial survey ofpolar bears are not in any crisis as they have been believed to be.
The polar bear kills the seal by biting its head Polar bear extinction crush its skull. The polar bear was previously considered to be in its own genusThalarctos. Polar bear extinction sit at the top of food chain.
Back in the early s there was commercial harvesting of polar bears, which led to a steady decline in their numbers, he says. Often polar bears live on ice and drift from one area to another. From a distance, standing polar bears scope out their prey. After feeding, polar bears wash themselves with water or snow.
To blend in with the snow that is common in the territory they live, the entire population has white colored fur. Therefore the survival of polar bears is associated with the survival of indigenous communities.
This is the time the Inuit call 'The one with most bears' "Are we just about to lose our polar bears. This itself debunks the claims made by scientists, that polar bears cannot survive without sea ice.
Seals migrate in response to these changes, and polar bears must follow their prey. In some areas, the polar bear's diet is supplemented by walrus calves and by the carcasses of dead adult walruses or whales, whose blubber is readily devoured even when rotten. The government of Nunavut rejoices over the fact that their polar bears are not endangered and also about how their Inuits have once again proved to be right.
Perhaps the major climate change lead to starvation or malnutrition due to habitat loss. They still manage to consume some seals, but they are food-deprived in summer as only marine mammal carcasses are an important alternative without sea ice, especially carcasses of the beluga whale.
View image of Could polar bears do well ashore. However it is unlikely they will attack to eat a person for food. Polar bears for the most part rely on specific conditions without which their survival would remain threatened.
Human Hunting Main Article: Polar bears consume a wide variety of other wild foods, including muskox Ovibos moschatusreindeer Rangifer tarandus birds, eggs, rodentscrabsother crustaceans and other polar bears. Massive areas break off and shift locations, sometimes putting mother and cubs in danger.
And last, but not least, there's the scientists. Research shows that the bears are becoming leaner and that fewer cubs are being born and surviving in the western Hudson Bay.
View image of Bears in higher latitudes are thriving Credit: The ultimate result is extinction as the natural ecosystem is destroyed.
Polar bear’s extinction according to conservationists could create an imbalance in the Arctic’s ecosystem.
For instance if the bears become extinct the population of ringed seals (the primary prey) could grow to an unmanageable proportion.
Because of ongoing and potential loss of their sea ice habitat resulting from climate change, polar bears were listed as a threatened species in the US under the Endangered Species Act in May The survival and the protection of the polar bear habitat are urgent issues for WWF.
Of those, the latest data from the IUCN Polar Bear Specialist Group show that one subpopulation is in decline (Southern Beaufort Sea) and that there is a high estimated risk of future decline due to climate change and data deficiency.
So much so, that in Canada, Denmark (for Greenland), Norway, the U.S., and Russia signed a landmark accord, the Agreement on the Conservation of Polar Bears, to regulate practices and conserve polar bears.
Threats to Wildlife More than one-third of our nation's wildlife species are at risk of extinction in the coming decades, threatened by a host of human activities.
Find out about the major issues currently putting America's treasured wildlife at risk. Polar bear population was believed to be endangered, especially due to global warming and melting of sea ice. However, recent study shows polar bear numbers have risen.
So what does this mean?
Are polar bears endangered or not? The crux of the matter is that different claims are made based on scores of assumptions.Polar bear extinction