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Polar bears reason for endangerment of global warming
Polar bear and climate change research paper
Polar bears climate change paragraph summary
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In 2008 the Polar bear was put on the endangered species list, they were the first to be placed on this list primarily due to global warming. Many will argue with this fact, but as we will discover through this document, global warming is real and is in fact affecting the lives of the polar bears. Polar Bears depend on the sea to freeze over which enables them to hunt seals. The bears have a short season to hunt in order to gain enough fat to survive the entire year. With the decline in the ice the bears have a shorter window to hunt and to gain the fat necessary to survive and to feed their offspring. The Bears are very strong swimmers, so they swim from ice landing to ice landing to hunt the seals. With Global Warming these ice landings are further and further apart. The Mother Bear may be able to swim these long distances, however her cubs are not. Many have been found dead, due to drowning. …show more content…
With the exception of Greenland who does not limit the number of bears killed each year. In addition to the hunting the rising temperatures in the world’s oceans are causing sea ice to disappear for longer and longer periods during the late summer, leaving polar bears insufficient time to hunt. This is a worldwide problem, and the Endangered Species Act has listed polar bears as threatened everywhere in the world. Polar bears can only survive in areas where the oceans freeze, allowing them to hunt seals living under, on, or in the frozen polar ice
Good literary text can communicate messages more powerfully than good informative text. 2 different texts, Moon Bear Rescue by Kim Dale, and the brochure Southern Asian Moon Bears, are chosen to represent in the argument between literary and informative. Both books are similarly capable of delivering a message, but which is more powerful? Informative clearly states the facts and provide consecutive information; raises awareness for the objective, i.e. Moon Bears, whereas the literary tends to tell more of a story, perhaps information, adapted to entertain the reader, and sometimes, to educate. Because of this, I feel that the literary is much more capable of providing a powerful message, mostly informative text lacks the friendly and heart-warming story that the literary text provides.
The Arctic region is home to a variety of valuable animals and plants, including polar bear, seal, and so on. The ecosystem of the Arctic region is fragile because these animals are evolved to live in extreme conditions. With the climate change, many animals are endangered. Ice is the habitat of polar animals because they have to rely on sea ices for resting, food, and reproduction. With the climate change and the decrease of sea ice, the number of polar animals is decreasing and their health is threatened. For example, the average weight of female polar bears in 1980 was about 650 pounds, but the number reduced to about 500 pounds in 2004 (Djoghlaf 15). The earlier breakup and later condensation of sea ice shortens the hunting season of polar bears. Polar bears mainly feed on seals that indwell icy land. The melting ice reduces the number of seals and food intake of polar bears. In addition, polar bears are used to living in ice caves. The rising temperature causes the collapse of ice caves, which can kill baby bears. The climate change is negatively affecting the biodiversity in the region and will definitely harm the ecosystem
The grizzly bear trophy hunt is an issue regarding the citizens of Canada who immorally hunt and kill grizzly bears for pride, thrill, and trophy. Many people question whether this is morally acceptable as hunters kill without a conscience. Grizzly bears are vital to Canada’s environment as they are essential to maintaining a healthy ecosystem. As keystone species, they regulate prey, disperse seeds of plants,and aerate soil to maintaining forest health. Due to the vulnerability and over-hunting of grizzly bears, Pacific Wild and many other non-profit organizations, are working to protect wildlife in British Columbia, especially the grizzly bear habitat.
grizzly bears prefered habitat is deserted rivers, wild mountains, and thick and dense forest. Grizzly bears are majestic symbols of the wild. Bears live in and use a variety of habitat types, playing important roles in each one. This makes them an “umbrella species,” meaning that when we protect them and their habitat we also protect many species. Grizzly bears can also help ecosystems by distributing seeds and nutrients through their scat, and occasionally regulating ungulate populations.
- Pagano, A. M., G. M. Durner, S. C. Amstrup, K. S. Simac, and G. S. York. 2012. Long-distance swimming by polar bears (Ursus maritimus) of the southern Beaufort Sea during years of extensive open water: Canadian Journal of Zoology 90:663-676. doi: 10.1139/z2012-033http://www.nrcresearchpress.com/doi/abs/10.1139/z2012-033#.UxOE1ZWPLoo
Out of an Ice Age emerged one of our most majestic creatures in the world the polar bear. From its brown bear ancestry, the predator evolved to be a master of a harsh and unwelcoming ice kingdom. Intelligent, adaptable and fierce, the polar bear learned how to survive in a place that offers few comforts to any creature. But now that very environment is in flux. And so is the polar bear’s fate (Nature). Polar Bears are very different from other bears. Polar bears are very large bears compared to Black bears. Polar bears weigh anywhere between 330-1700lbs and Black bears weigh anywhere between 150-600lbs. They have strong legs with large, flattened feet with some webbing between their toes that help with walking on ice and swimming. The wide paws prevent sea ice from breaking by distributing weight while walking. Their paws allow them to pull a 600 pound seal out of its breathing hole (Rosing, 20). The webbed feet results in making polar bears, unlike other bear species to be considered as marine mammals along with seals, sea lions, walruses, whales and dolphins (Polar Bear). According to Rosing Polar bears are excellent swimmers and have been known to swim up to six miles an hour and as far as 60 miles at a stretch. The bears paddle with their front feet and steer with their back feet. They often overheat. Sometimes they venture into the waters just to cool off. When a bear climbs on an ice floe, it shakes itself off because it is trying to prevent ice from forming on its fur (22-23). Because of climate change and hunting of polar bears are now becoming an endangered species which is affecting the food chain. We can fix this by going green, banning polar bear hunting and keep creating these new hybrid bears that are mixed with griz...
As spring comes closer its that season where people take their boats to icy cold waters off the east coast of Canada to go hunt seals. The seal hunt happens every year in spring off the East Coast of Canada. The hunters take their boats into icy cold waters with rapids and ice everywhere, just to try to kill as many seals as they can before the time runs out. Some ways that the hunters kill the seals is by either shooting them with a gun or using a hakapik, which is a spiked wooden club. As said in the article “The seal hunt is effectively a race between sealers to collect as many skins as possible before the quota is reached” (Why commercial sealing is cruel). The commercial seal hunt in Canada should not be abolished because
Colb, Sherry. "A Response to the Claim That Eating Animals Is Natural." Free From Harm. N.p., 25 July 2013. Web. 16 Sept. 2015.
To quote Jeremy Bentham in his book An Introduction to the Principles of Morals and Legislation, in regard to the consciousness of animals, "The question is not, 'Can they reason? ' nor, 'Can they talk? ' but rather, 'Can they suffer? '. It is far too common for us as humans – the top of the food chain - to forget that we are not the only beings on the planet capable of thought. It is very simple to lump together all the creatures deemed as unintelligent or insentient together and basically de-animalize them – stripping them of their own evolutionary accomplishments and cognitive or mental development. With no empathy or deeper understanding of these beasts, we are free of any moral weights on our consciousness that may come from forcing them to live in humiliating and revolting conditions and are fed a chemical concoction of hormones and chemicals. This unfair and unjust treatment of animals has touched the hearts of many individuals across the globe, influencing them to take up a new diet that with it brings about a new lifestyle. Vegetarianism (or veganism, for those who are serious about
To begin with, the melting of polar ice caps has caused polar bears to swim long distances. According to Bryan Walsh of TIME Magazine the melting of the ice caps have caused polar bears especially the young cubs to swim longer distances which has caused a “ forty-five percent mortality rate” (Walsh). In the article Walsh, writes about a study that showed that younger cubs because of low fat and strength were more likely to die due to the long di...
One way that the environment impacts the animals is that the animals such as bears adapt and store their energy in the winter. This is also known as hibernating. “Animals in the mountains have also adapted to save energy during the harsh winter months.” (Cassandra Maier, Adaptations of plants and animals to mountains) When animals hibernate, they are less active during the winter, and they just sleep for most of the day. Other animals such as the goat and deer do not hibernate during the winter,
Imagine wanting not a puppy, but a tiger for your birthday, imagine the expenses of that tiger and the dangers and hazards of owning that tiger. Do you really think it’s a good idea to get that tiger? No, it’s not. It’s a lot of work, and it’s also very dangerous. Exotic animals are not good to buy and have. If you buy that cute tiger, it will eventually grow up and not be so cute, it will be dangerous and strong, it’s also a wild animal and it’s very unpredictable, also there are many diseases you can catch from that tiger, and there are many dangers of having that tiger as well. (Long sentence)
Polar bears don't just live on ice, they use the ice as an advantage to catch prey such as seals. Polar bears have adapted to living on ice and being able to withstand the cold weather. Now that the climate is changing at a fast pace, polar bears are losing their land because its melting, leaving them with no place to walk, sleep and taking away their way of hunting prey. (polar bears international, 2015) This is all happening so fast that there is no way polar bears will be able to adapt to the new environments, causing extinction. The arctic is warming twice as fast as the rest of the world is due to the build up of greenhouse gases in the atmosphere, making it a problem happening very rapidly. (Bagley, 2015) Temperatures in the Arctic region have risen 7 degrees Fahrenheit over the last half century. (Bagley, 2015) Population among polar bears has decreased up to 40% in some areas. (Bagley, 2015) With the climate getting warmer, ice is melting earlier every spring, and takes longer to freeze every winter which is disrupting the feeding and breeding cycles of many different arctic species. (Bagley, 2015) Polar bears have adapted ways to survive in the cold harsh arctic environment including having the ability to cool down their outer skin to keep their vital organs warm when they are submerged in cold water. Though this may help the delay of hypothermia as they have to swim greater distances from ice shelf to ice shelf, that doesn't mean polar bears can swim forever. (Bagley, 2015) One bear that a scientist studied swam 500 miles over nine days, but lost 22% of her body weight, and lost her cub.(Bagley, 2015) Many different scientists have been studying the behaviour of the polar bear to see if it could adapt in any way to survive. Eight U.S scientists made a hypothesis consisting that polar bears could lower their metabolic rates enough to survive as food
The polar regions are most affected and vulnerable to the warming temperatures because the poles are covered in ice. The world’s ice sheets are melting faster than ever and temperatures in the Arctic region are rising twice as fast as anywhere else on Earth according to the NRDC. This will have a serious impact on people, wildlife and plants in that region. The National Climate Assessment has said that “By the year 2100, it 's estimated our oceans will be one to four feet higher, threatening coastal systems and low-lying areas, including entire island nations and the world 's largest cities, including New York, Los Angeles, and Miami as well as Mumbai, Sydney, and Rio de Janeiro”. Polar bears are in great threat as the ice sheets melt because they use the ice to travel across the land and hunt. As the sea-ice platforms move further apart, the swimming conditions become more dangerous. The U.S Geological Survey done by the National Wildlife Federation predicts that by the year 2050, two thirds of all polar bears will disappear. Researcher Bill Fraser has tracked the Adelie penguins in Antarctica and reported the numbers have fallen from 32,000 to only 11,000 over the last 30
They roam this frozen continent and feed on seals and walruses as they come up for air from holes they make in the ice. Polar bears are one of nature’s ultimate survivors, as they are able to live and thrive in one of the world’s harshest environments. However, their homes are melting, added to that fact that the Arctic now experiences longer periods of summer in which more ice is being melted; polar bears have insufficient time to hunt as they need the ice to capture seals and walruses.... ... middle of paper ... ...