The Effects of Climate Change on Canadian Polar Bears Although climate change has had severe impact on the Canadian population, the melting of the Canadian Arctic ice caps has proved to be detrimental to the five subpopulations of polar bears in Canada, which are found in the Arctic Archipelago, Beaufort Sea, Hudson Bay and James Bay region. (Clark). Polar bears are dependent upon sea ice coverage to be consistent, and because of the recent change in climate, they are becoming a more at risk species (Stirling and Parkinson). In The Fourth Assessment Report of the Intergovernmental Panel on Climate Change of the United Nations, they reported that the world climate change will continue to warm, it will only get worse and the primary cause of …show more content…
This is a cause for concern because it means that not only are polar bears spending longer amounts of time on land, but they are also having more human interaction. A polar bear is not used to seeing humans on a regular basis, unless they are in captivity, and may perceive them as a threat (Freeman and Lee). Although there are not many reports of polar bear- human interaction that have been fatal, the reports from the Inuit communities have stated that the bears are increasingly becoming more aggressive. (Freeman and Lee). The reason for this is because a hungry polar bear is willing to prey on humans more so than any other bear (Stirling 55) they could even result to cannibalism because they are so famished. If polar bears continue to move and stay inland for a longer period of time, the shift in the dynamics of an ecosystem will be dramatic …show more content…
As polar bear population decline so does the population of seals which is a fatal cycle for polar bears, because without ringed or bearded seals, polar bears cannot survive and will be pushed inland. The fallout from the bears being pushed onto the mainland could be detrimental to the Inuit population that are in coastal regions of the ice caps, as bears have been reported to be increasingly more aggressive with humans, it is only a matter of time before the interactions become fatal. Now, not only do they have to adapt to warmer weather, but they also have to deal with the diminishing of the land that they inhabit. Polar bears run the risk of becoming extinct, because without the large ice surfaces, they will have no place to live. It is largely believed that polar bears have adapted to new conditions once, and would have no problem doing so again, however this is utterly incorrect. The process of evolution takes years to occur and cannot happen overnight, therefore, polar bears cannot simply just adjust back to the warmer weather. Not only will the polar bears lose their land but they will also lose their hunting ground and will not be able to sustain the same diet. The detrimental effect to polar bears living on the
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The larger the wolf population gets, the larger their appetite will get. This will cause more deaths in a animals such as deer, elk and moose. (Chadwick) The environment will not have sufficient resources to keep the wolves alive and thriving so the rest of the populations will start to decrease as well. Their competition levels will rise and the other animals such as bears, cougars and coyotes will have trouble competing and finding resources.
Have you ever wondered why particularly in Alaska, bears need to stock up on food before winter comes? all the bears particularly in Alaska, need to stock up on food before winter comes because when winter hits food goes away. In the text it states " When the cold Alaskan winter hits, the bears’ food supply disappears. Temperatures drop, freezing the streams where tasty salmon swim. The berries that the bears snack on vanishes".
Being Arctic Tundra The Arctic Foxone of the world’s driest and coldest biomes, the Arctic tundra By Aanirudh Kheterpal is categorised as an extreme environment. The average temperature of this region, -12˚C to -6˚C, requires special adaptations in terms of thermal insulation. While the nonstop 50-60 days of summer sunlight is counterintuitive, this region also experiences 60-70 days of lightless winter, adding to the extremeness of this region.
Climate shows that the future of the parks berries in the ecosystem is dropping. Elk is another which is are also expected to further decline due to climate-driven deterioration in forage conditions. Life for grizzly bears will get worse threw out time with more conflicts that will end up with dead bears. In the article it stated “Even the Fish and Wildlife Service has admitted that the primary post-delisting management plan, the Conservation Strategy, cannot actually regulate anything. And this agency has fiercely resisted any mechanism to relist bears if the population crashes in the face of excessive
Global warming was significant to the Inuit people since it was easier to receive fresh water. Fresh water was difficult to collect because most of the snow was polluted and unsafe to drink. Also, the purest water was difficult to receive. First, at 14:47, it shows how the Inuit people were breaking the ground to find fresh water that was hidden inside. This is an example how the Inuit people were searching for fresh water.
Many people know what wolves are and often assume they are fierce, carnivorous, beasts. Yes, they are carnivorous, but generally speaking, they are not savage beasts that kill everything in sight. They kill what they need for food to survive and often times are under fed, attacking when they feel threatened or their family is in danger. What most people do not know is that not all wolves are the same, and some are very unique and different from the rest. One of these unique species is found in British Columbia 's Great Bear Rainforest.
The effects on these resources are changes in the temporal and spatial extent of permafrost, snow cover, glaciers, and lake ice cover. For example, glaciers in Glacier Bay National Park, West of Juneau, have retreated 60 miles and lost nearly 1 mile in thickness. “As a result, less than 30% of Glacier Bay National Park is now covered by glaciers.” Another place experiencing the effects of climate change in Juneau is the Juneau Icefield, which is the 5th largest icefield in the Western Hemisphere and the source of the Mendenhall glacier and 140 other glaciers. Due to warming temperatures, the Juneau Icefield, which covers 1,500 square miles, is in danger of disappearing.
Why was it an important field of study? It was an important field of study because people in the region was really concerned about the bear problem. The author’s hypothesis was that anthropogenic food would be a major component of the bear’s diet; the anthropogenic food would be lower in seasons with higher natural
However, subsistence hunting on the frozen ocean is becoming harder and more dangerous due to the increase in global temperature. The sea ice is melting and there is now open ocean where there should be ice at a certain time of year. Loss of sea ice also changes marine animals’ migration patters, and hunters may have to hunt for many species in one season. With no ice, the sea picks up
Polar Bears are the most dominant animal of the Arctic area. Polar Bears are the largest land carnivore in the world. Male and female Polar Bear differ a lot in size. Female polar bears are much smaller but can still grow up to seven feet and weigh up to 700 pounds. Males, on the other hand, can get up to nine feet long and weigh up to 1800 pounds.
Projects based on bears also focus on the asiatic black bear, the sun bear, and the sloth bear. Bears are carnivores, meaning they eat both meat and vegetation. The bear’s diet consists of things like berries, nuts, grass, fruit, insects, roots, and bulbs. They will hunt small animals and brown bears specifically, when near a coast, will feed on fish, particularly salmon. Other bears, like the polar bear scavenge for carcasses of the beluga whale, walruses, narwhals, and bowhead whales.
A common misconception with polar bears is that the fur is white, however it is actually transparent and reflects any visible light making it perfect for keeping camouflaged in the snow. It consists of a dense insulating underfur topped by a protecting top coat of fur that varies in length but ranges from 1cm to as long as 15cm. They are completely covered In fur with the exception of there nose, and pads of there paws. It is water repellent and oily and doesn’t knot when wet letting them shake free of any water or ice. They have very long necks, which is useful for when they swim and when they drive their heads into holes to catch prey.
The adaptations of bears have changed drastically due to hunting or habitat loss and sometimes captured for performances because of aggressive behavior and destruction of personal crops. The adaptions alter the way these eight species of bears grow and prosper. The development of their physical, dietary, and population has opposed how bears should really advance as group. Like all animals, black bears exhibit specific adaptations that help them survive in their habitats.