The Polar Bear : A Description Of The Polar Bear

"Polar Bears, Ringed Seals, and the Complex Consequences of Climate Change" is an article written by Mary Bates who earned her PhD studying Bat echolocation. She works for an American Association for the Advancement of Science. In this article Mary talks about how Climate change is impacting different species at different rates. Here, she focuses on sea-ice dependent animals such as Polar Bears and Ringed Seals at Arctic. She explains on how these animals are dependent upon the sea-ice for living. The Arctic is warming at a rate three times greater than the global average, and that the sea ice coverage is declining rapidly. She also talks about Hamilton's study on sea-ice dependent animals. Before the melting of sea ice the Polar bears used

Polar bears are one of the countless species who are endangered. They were one of the first animals affected by global warming and their population is heavily decreasing. Around 1980, the Arctic was as large as 8 million square kilometres. In 2011, studies show that the Arctic has reduced its size to 4.5 million square kilometers. In the future, will there be anything such as the Arctic? Scientist predict by 2040, only a fringe of ice will remain in Northeast Canada and Northern Greenland. This is known as the Last Ice Area. This matter is mostly taking part in Canada, since; Canada holds more than half the world’s polar bear population. Other affected countries include the U.S. (Alaska), Greenland,

With the ever rising global temperatures, melting ice caps, and constant warnings about global warming, it is no wonder that the animals inhabiting the artic regions around the world are now suffering a decline in their habitat as well as their livelihood. Such is the case with the Polar Bears who may soon be gone in a scant few years.

Canada is home to many species of rich heritage, cultural significance and meaning to the Canadian people. Of the many species, one holds a strong iconic significance that plays a vital role in the very ecosystem it resides in. The polar bear species are undoubtedly the apex predator of its food chain and a culturally significant species to the indigenous people. With both these traits, it makes the polar bear a true Canadian symbol which is further emphasized by its very place on the Canadian two-dollar coin to the strength and endurance represented by this majestic species. However, no matter how strong and enduring the polar bears are to the arctic, such resilience is not as effective against the harsh changes their environment has gone through.

The Polar Bear are found on the icy coasts that surrounds the North Poles and as far south as Hudson Bay. Around 60%of Polar Bears can be found in Canada with the remainings throughout Greenland, Alaska, Svalbard, and Russia where tend to be close to the ocean across the icy fields. The habitats are affected by human encroachment by hunting , and releasing chemical pollutants into the water.The Polar Bear eats Seals, Walrus, and Seabirds. Polar Bears can live up to 20-30 year. Polar Bears have a lot of fur and their fur is clear, white, or yellow. The Polar Bear is 6.5 ft-8.3ft. they can weigh up to 330lbs -1,322lbs and they can swim up to 25mph.

Regardless of the studies continuously being done on the polar bear and brown grizzly bear lineage, the polar bear is listed as “vulnerable” which is one level below “endangered” on the International Union for Conservation of Nature List. This is due to the warming climate, loss of sea ice, threats of hunting, shipping, and pollution (Hailer, Verena, and Bjorn, 2012).

Polar bears, whose scientific name is Ursus maritimus, is most commonly referred to as “sea bear” or “ice bear”. These bears are very interesting species that belong to the arctic region. In this essay, I will be discussing the polar bear’s behavior and the type of species interactions they have: The species interaction refers to symbiotic relationships. I will also be discussing a new research that may

The polar bear lives up in the Arctic region where global warming and climate change are melting the ice caps that the bears thrive on. They use the ice as a platform from hunting and rest. The random pocket holes in the ice, where the seals pop up at, is where the polar bear catches its prey. With this reduction of ice, “the abundance of seals, and increases the amount of energy and time needed for hunting, leaving less energy for reproduction” (Endangered Species and Habitats).

Due to the effects of greenhouse gases, the sea ice that polar bears rely on for foraging and shelter is declining rapidly. Some populations of polar bears are forced to depend on their stored fat for energy during summer due to melting of the sea ice, which prevents them from hunting more efficiently. Being forced to rely on stored fat leads to a decline in energy intake, which leads to a decline in body mass. A decline in body mass correlates with slower reproductive rates and decreasing survival rates, which effects the growth and genetic diversity of the population. The increased amount of open water in between sea ice causes the polar bears to swim for greater lengths and therefore makes it more difficult for female polar bears to find proper dens for reproducing and protecting their offspring (Derocher and Stirling, 2012). The rate at which the sea ice declines is projected to accelerate over time (Derocher and Stirling, 2012), which means we will soon reach a year when severe malnutrition will lead to an irreversible decrease of polar bear populations (Aars et

As polar bears inhabit the Arctic regions of five separate nations, it is important to examine the different nation specific management plans in place for conservation of the species. By examining the various management plans in place, a comprehensive look into polar bear management of the species on a global level may be achieved. Of the five nations with polar bear populations, the three largest have some form of a national management plan in place. However, in all five nations, all have specific polar bear hunting regulations and restrictions that also assist in polar bear preservation.

Climate change has recently become a very large issue and at the forefront of it all are the Artic Polar Bears. These Artic Polar Bears have been labeled as vulnerable by National Geographic. This vulnerable label comes from a multitude of issues with the most significant being climate change. Artic Polar Bears are dying rapidly because these large carnivores are victims of the climate change, oil exploration, toxic pollution, and overhunting, all these and many more reasons are leading them to extinction and something needs to be done about it.

Rising temperatures and melting polar ice has led to a rapid decline in the populations of polar bears in the last 100 years. The ice is melting faster and taking longer to refreeze making it hard for polar bears to hunt for food and to den and increase their population. Polar bears are often seen as a flagship species, and are generally used as the “cover child” so to say, of global warming campaigns. Factors such as climate change and thinning of the ozone over the poles are having a major impact on their survival. However, in the past century, their populations overall have been declining, and they are in fact considered endangered. Between over hunting, loss of habitat, and loss of hunting and breeding grounds, the polar bear populations

The polar bear (Ursus maritimus) is the biggest terrestrial mammal in the Arctic. He is also considered as an animal with a circumpolar or broad distribution in polar regions. The conservation status of bear remains problematic, according to the global warming that is happening now. If further managements are not implanted, polar bear population`s will disappear in the future. The polar bears live in the Arctic, an ocean surrounded by land. The Arctic has a very low species diversity and polar bears the first animal into the food chain. Also, the Arctic has cold winters which are not suitable for some aquatic species. With global warming and interglacial period, the ice and snow began to recede about 20.000 years ago. The rate of ice loss has

the last thirty years three quarters of floating ice cover has been lost, which has greatly affected the Polar Bears. This has been due to our use of fossil fuels. This photograph was captured in order to send the message that Polar Bears are losing their homes on the rapidly melting ice caps due to global warming and change has to be done.

Polar bears are found across the Arctic. They are most abundant in areas with annual sea ice and productive ringed seal populations. There are five nations with polar bears: U.S. Alaska Canada, Russia, Greenland Kingdom of Denmark and Norway Svalbard. Polar bears do not live in Antarctica.