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Polar bears climate change effects
Polar bears climate change effects
Polar bear and climate change research paper
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Bears Are Us Paul and Pete have been life-long friends who attended college together studying wildlife biology. After they graduated from college, they both took salaried positions within the U.S. Forest Service. During this time, they decided to dedicate their spare time to understanding and appreciating the protection of grizzly bears. Paul and Pete have formed a recognized partnership, by doing business under the fictitious name of “Bears Are Us”. Although they lack written documentation, the joint management of the organization involves collecting donations, conducting presentations, selling books and prints, writing articles, and actively promoting other events related to the protection and benefit of the grizzly bear.
Humans consider polar bears as one of the cutest animals on the planet. Not only are they adorable, but they are also going extinct because of the warming temperatures in the Arctic. But what the public does not know is that the warmer weather is not the only thing killing off these animals; it is truly cannibalism. Rod Sterling's story, "Monsters Are Due on Maple street," reveals this surprising truth in a similar way. The story takes place in an ordinary neighborhood that is supposedly being attacked by aliens.
Jimmy Carter wrote this essay to persuade his audience that industry should not develop Arctic National Wildlife Refuge for its resources . Carter used evidence, such as facts and examples to support his claim. In Carter’s writing, he clearly shows the reader how the Arctic National Wildlife Refuge remains America’s last truly great wilderness. Many animals live there, for example, the polar bears, caribou, Dall sheep, and wolves.
In the editorial by Ron Judd titled “Why returning grizzlies to the North Cascades is the right thing to do” found on the Seattle Times’ website, Mr. Rudd states his case for the reintroduction of Grizzly bears into the North Cascade Mountains of Washington State. He makes the argument that fatal interactions between hikers and bears are not a valid argument against reintroduction because the rarity of these encounters and the rarity of aggressive bears. He also cites some of his personal experiences encountering these animals and both his own and their reaction. Mr. Rudd uses this information to paint a picture that the bears are not as dangerous as commonly believed, using as an example the presence of grizzly bears in Yellowstone National Park which sees many more visitors than the North Cascades. Another point that Rudd discusses is his belief that bears are an important part of the wilderness experience, he shares his feelings after one of those encounters: “With senses heightened off the charts, it was as if I had stopped observing the natural world, and for the first time, stepped all the way into it.
Bringing attention to the fact that if it's not bringing positive attention its deemed as unimportant. Although there are efforts being made he simply makes it out to be “not enough” he shows this by briefly stating things like “the predicament of actual polar bears, meanwhile, seemed only to be getting worse.” and “I noticed that the museum was scrapping its exhibit about disappearing glaciers and polar bears. It had proved unpopular and was mostly ignored,” statements such as these paint such a sad pitiful image for the polar bears. It causes readers attention to focus on themselves and hopefully push them to be more considerate and attentive to such pressing
The author states that the pollution hypothesis seemed the most likely cause of otters decline along the Alaskan coast and provides three reasons. In contrast, the professor states that the ongiong investigation show that the predation theory is mst likely the cause of the decline and sh.e opposes each of the author 's reasons First, the reading claims that there were known sources of pollution along the Alaskan coast. However, the professor refutes this pint by saying that the pollution theory is weakened by that no dead sea otters were washed up to the shore. She said thet if the infection is the cause of the decline, there should be a lot of killed otters washed up, so this fact is consistent with the predation theory because if the sear otters were killedby predetors, they would not wash up to the shore.
As a consequence, these animals are now forced to spend more time on shore scavenging for food, often going without while awaiting new ice to form in the fall. There is also growing concern for polar bear cubs that are thought to be incapable of swimming the increasingly greater distances in open water between shrinking ice floes. As evidence, they offer the growing number of very young polar bear carcasses that they notice being washed up on shore. Many mother bears also appear to be dangerously thin and less able to fend for themselves and their young. This situation is quite noticeable among polar bears along the western shore of Hudson Bay, especially around the town of Churchill Manitoba, a location where polar bears traditionally spend the late months of fall foraging on shore awaiting the freeze-up, a freeze-up that now comes later each year.
Because of this, many native species are dying out.
Polar Bears have adapted to their environment by many reasons. The main reason is by their fur because they have thick oily fur coat. They also have have a layer of fat under their skin that helps the not to get cold. The second reason is because they have very long claws, these claws are 12 inches and in centimeters that is 35. The third reason is because polar bears have a very good sense
This issue that I have chosen is the impact of global warming on polar bears. A polar bear major/main threat is due to global warming is the loss of sea ice habitant. These polar bears are marine mammals, which mean they spend most of their time in the sea than on land. The polar bears make their living on the arctic ice. Global warming also has an impact on the population of polar bears (population size decreasing), the sea ice platforms are moving farther apart; which is making swimming conditions more dangerous for the polar bears, it is impacting on their hunting opportunities (fewer), and increased scarcity of food.
Apart from the sea ice, the polar bears have very few alternatives left when the ice melts and when their access to the ringed seal prey disappears with their habitat. The charismatic arctic hunters cannot adjust and sustain themselves on another food source. If the devastating process of climate change continues, there wouldn’t be a thin sheet of ice left for these extraordinary animals to survive
Climate change, specifically warmer temperatures, has extensively altered these habitats by reducing sea ice extent, thus affecting polar bears since they use it as a platform to travel, hunt, and rest. Changes in the timing of sea ice formation and break up limits the amount of time bears can feed off of seals during late and early summer, hence limiting the amount of fat they are able to store for later seasons. Lower rates of food intake and storage correlates to low reproductive rates, and since females do not have sufficient fat and mass required for successful parturition, they abstain from
As the world we live in today continues to warm up, the problems surrounding the survival of the world’s beloved polar bear continues to grow. Over the past twenty years, we’ve seen a change in the number of polar bears in the Arctic and have witnessed a decrease of the amount of Arctic ice in the sea. Many scientist have come up with ideas to tackle the problem, but there hasn’t been a solution that has greatly influenced the predicament at hand. Ultimately, when discussing what to do about the endangered animals, it is valuable to consider what the species needs in order to remain; a healthy population and genetic diversity. Andrew Derocher, biologist at the University of Alberta, and the rest of his team have come up with a few ways to combat these needs.
Global warming is a big problem that we have to face nowadays. If you search Google for the word “global warming’, you will get over 70 million pages of results. The subject has certainly drawn a lot of attention. And now I will talk more about “what is global warming” , the cause and the effects it has on the earth and also some possible solutions for this problem.
Changes in weather patterns have developed holes in ecosystems that are filled rapidly by invasive exotic species. “This weather pattern of increased warmth,” notes Daniel Lashoff, “will be greater over the next century than ever see in the last ten thousand years.” It will continue to warm excessively in areas to the point that the tundra grounds will decompose. A recent Geographical journal article states, “The threat to the global climate posed by methane escaping from permafrost as it melts would be unimaginable” (Geographical 12). Melting can already be viewed in forests where trees have coined the name “drunk trees,” since they have moved in all sorts of directions due to the thawed soil.
