Polar Bear Population Analysis

The trophy hunting of at-risk grizzly bears is a controversial topic in Canada. It is part of the Canadian cultural inheritance. Hunting grizzly bears are considered to be a legitimate recreational activity in some parts of Canada. They inhabit in the forest and near the costal line. The numbers of bear reached tens of thousands before, but because they are fierce and threatening human beings, they are being hunted and killed. Also, the low mortality rate of grizzly means low population, but they play a critical role as a predator in the ecosystem. The problem is over-hunting and industrialization will cause extinction of this rare species, and lead to disharmony between the government and First Nations. I mainly support the ban of grizzly

There are about 100 different species of animals there, all of which are affected by climate change, but polar bears the worst. Polar bears are the most sensitive to the rapid change in climate because most of their life is spent on sea ice. With the temperatures rising in the Beringia Upland Tundra, the sea ice they thrive on is melting at a very high rate (Powell). Without this ice, the polar bears will not be able to easily move around to mate with other polar bears. They will also not be able to successful hunts on seals because the seals will see them swimming and swim away before anything bad can happen to them. If there was not a shortage of ice, the seals would not see the polar bears on the ice and they would swim closer to the surface. Another challenge the polar bears will face is that they will be eventually forced to go on to the seashore. This would be catastrophic because there would be and increase of competition for food. This could start massive stampedes that could kill polar bear cubs due to adult polar bears trampling them. As of now, there are only 26,000 wild polar bears alive. By 2050, it is predicted that two thirds of all wild polar bears will be gone. By 2100, it is predicted that polar bears will become extinct if nothing is done about global warming and climate change (Kliskey). Another animal in the Beringia Upland Tundra that is affected by climate change in

"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,

Glacier retreat will greatly affect polar and aquatic ecosystems and animals. Most arctic life revolves around the sea and presence of sea ice. Without the presence of ice, most ecosystems will be recreated. Polar bears are one species in great danger. Polar bears use sea ice as a birthing and hunting ground, and also use it to travel from one place to another. As glaciers start to disappear, the mother polar bear has less access to food; therefore, the chance of survival for her and her young is very slim. The polar bears chance of reproduction becomes less as the glaciers retreat. As the top of the food chain, their decline will cause negative effects for each level below them (Review Diagram G). The only way for polar bears to survive, is by

In the scientific article, “Love in the Time of Climate Change: Grizzlies and Polar Bears Now Mating,” by Adam Popescu, believes that climate change is helping to cause grizzlies and polar bears to mate. He points out that glacier sheets are retreating, this forces the polar bears to move into grizzly’s territory. Moreover, that the permafrost is also starting to melt, which is causing grizzlies to wander into the polar bears territory. Consequently, he goes on to put that because of this mating, the grizzlies are eating up the polar bears genetically. He concludes that if this trend keeps up, in a few decades any kind of the bear population in this area will be no more. Lastly, the author’s purpose is to make readers aware of the hidden effects

With their habitat being wiped away, their own food sources being toxic, to the very environment harboring chemicals; they are truly struggling to survive. Furthermore, hunting, although not a threat on its own, poses a great deal of risk to this species because of the threats outlined previously. If it were not for the disadvantageous situation the species currently face, it would likely not pose a threat at all. The aim of this paper is to provide an overview of the threats faced by polar bears in Canada such as global warming, bioaccumulation of mercury, biomagnification of polychlorinated biphenyls and hunting. Furthermore, hunting quotas placed on northern Indigenous populations will be analyzed as a conservation method that is helping to reduce further strain on the existing populations of this Canadian

Many people may not know that Canada is home to one of the largest subspecies of polar bears called Ursus maritimus. These polar bears are notorious for being a nuisance for the people of Churchill, Man. Every year, hundreds of polar bears gather on the western shore of Hudson Bay to hunt for seals once the ice freezes. There is one very large issue about this; the polar bears have not eaten in months due to hibernation. This makes the polar bears very desperate for food. The polar bears often invade towns and become aggressive to the townspeople. An important question arises: what is the government doing about it?

A research scientist stands on a sheet of ice. He looks right, then left, more ice. Off in the distance are mountains of ice. There are open patches of water in the middle of this great land of ice reflecting the vibrant and glowing sun. Waiting with patience around one patch is a polar bear, white and skinny. Skinny, as the polar bear has not eaten in days. It stands watch with hopeful eyes that a big, juicy seal will pop its head out just enough to get a bite and haul the seal on shore to feed itself and the bear’s two cubs. This area is known as the arctic, and it is home to many animals, such as the polar bear, but they are in danger of losing their home due to the melting ice caps. At the beginning of the article “The geopolitics of Arctic melt”, Charles K. Ebinger, the director of the Energy Security and Climate Initiative at Brookings Institution, as well as Evie Zambetakis, a Senior Research Assistant at Brookings Institute in 2009, asserts their credence of how the thawing Arctic, due to Global warming, increased the interest of the area worldwide.

For the past few weeks, we have been reading the informational text, Where Do Polar Bears Live? Today, you are going to take an assessment where you will have the opportunity to show what you have learned. There are two parts to the assessment. The first part is a 1 short response question, and the second part is 5 multiple choice questions.

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).

The first thing we can do to prevent, Polar bears from being endangered is by lessening pollution. The CO2 that are released from cars and factories are usually the reason why Global

Polar bears need humans to build there habitats in order to live. Animals can’t keep there homes safe and can’t always live just anywhere. Polar bears need humans need to be nice and not so harmful. One’s opinion is that humans need to stop harming/hurting these polar bears. These polar

A primary response to change is the ability of individuals to modify their behavior patterns relation to spatial distribution and phenological shifts. However, for species living in environmental extremes, they have little opportunity to regulate the climate-warming changes to their physical environment and must display plasticity in their key behaviors to cope with the changes. Polar bears face the dilemma of remaining with ice that has retreated past biologically-productive shallow waters or to move away from the retreating sea ice to the shore which can lead to inadequate resources and exposure to risk factors. There was an investigation on polar bears from Alaska’s southern Beaufort Sea (SB) subpopulation to see if the rapid environmental

In recent decades, the global warming threat has captured the attention of the nation and the world. While the main focus began with concentrating on the effects this long-term natural crisis would have on the human population, select groups have worked to approach the topic in a manner that entails prevention in order to help other animal and plant species around the globe. One such organization is the National Oceanic and Atmospheric Administration, which has played a major role in the conservation of the polar bear species, one of the mammals most adversely affected by the recent climate changes. As more research has been conducted regarding the polar bears, scientific name Ursus Maritimus, the conclusions have been shocking. In