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. One of the main reasons polar bears are going extinct is because they aren’t getting the right amount of food they need to survive. Seals, the main food source for the polar bears, are animals that depend largely on the algae that grows on the ice of the Arctic. With the ice content slowly depleting, there isn’t enough seals to sustain the polar bear population. One of the …show more content…
The bold idea to establish grizzly surrogate mothers is one of the strategies proposed to counteract this problem and ensure a long lasting population. Grizzly bears are genetically similar to polar bears but are different because they have adapted to survive in warmer conditions. This is one of the main reasons they are still seen more often today. If the population of polar bears were to drop drastically, then we would be forced to look at the grizzly mothers as one of our only options. The transplant of polar bear embryos into grizzlies is all it would take to keep the declining population at a steady and safe
Sixty years after the extirpation of wolves in the Northern Rockies and Great Plains of America, biologist and ecologist in Yellowstone National Park reintroduced wolves into a declining ecosystem that once thrived during their presence. The reintroduction brought immense controversy into the West and continues to stir outrage among anti-wolf groups. These anti-wolf supporters argue wolves are ruthless predators that cause destruction to natural environments and livestock. Conversely wolf advocates and scientists suggest that wolves are a keystone species that are essential to the natural regulation of our Western ecosystems. Although pro and anti-wolf advocates can agree that wolves have an effect on livestock, ungulate populations and ecosystems,
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.
Polar bears are considered one of the cutest animals in the world and are adored by thousands of people. Not only are they adorable, but they are also going extinct because of the warming temperatures in the Arctic. But what mankind does not know is that warmer climate isn’t the only thing killing off these animals; it’s truly cannibalism. This surprising truth is revealed in a similar way in Rod Sterling's short story, “Monsters Are Due On Maple Street.” The story takes place in an ordinary neighborhood that is supposedly being attacked by aliens.
A: No because once the cubs mate with the Alaskan cub who will there cubs breed with. If they inbreed the gene pool would not be stable. The government would need to bring more grizzly so the species can survive. 6 would the cubs survive if Cloyd didn’t scare off the black bears?
The seals that get killed for their fur are all 2-3 weeks old. These animals are getting killed very often, and they get killed in a very painful way. Hunters don’t shoot the animal. Shooting the animal is much more effective and it will put it out of its misery faster, but hunters use clubs to beat them to death. Seals are being hunted, and it should be banned in Canada.
This prevents egg cells from reaching the uterus. This procedure is permanent and a less violent method; however, it is expensive ($1,200 per doe). Furthermore, the Cornell University study showed that while the birth rate did decline, the overall population remained steady for over five years (Landers, Jackson). The reason that the overall deer population was remaining steady turned out to be that does were attracting other bucks from different territories into the area.
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.
However, having being hunted to such small numbers poses the risk of small genetic diversity upon population increase, indeed, “All extant sea otter populations, remnant and translocated alike, show relatively low levels of genetic variation” (Larson, et al., 2002). Bibliography Bodkin, J. L., Ballachey, B. E., Cronin, M. A. & Scribner, K. T., 1999. Population demographics and genetic diversity in remnant and translocated populations of sea otters. Conservation Biology, 13(6), pp. 1378-1385.
The amount of arctic sea ice is declining more than ever. Polar bears are being greatly affected by the decreases in sea ice. (Doc A) This is affecting their diet because without enough sea ice it has been very difficult for them to catch seals to eat. Also, their population is decreasing due to the longer periods between hunts.
The Indigenous worldviews of Inuit’s people are problematic as the rituals of annual seal hunt, which occurs during March and April. Currently seal hunt is practiced in eight countries: Greenland, Iceland, Norway, Russia, Finland, Sweden, Namibia and Canada where the worlds most seal hunting takes place. In 2008, 217,800 seals had been killed just in Canada. It is extremely tragic in the sense that the populations of Harp seals in northwest Atlantic have declined approximately 2 million in the late 1960s as a result of Canada’s annual rate. Baby seals are the targets of this hunt because of their white fur.
The wilderness is a great home for many different species of animals to inhabit. Such animals include polar bears, caribou, dall sheeps and wolves. It would be such a tragic that such a great habitat would be demolished. The Arctic National Refuge is a magnificent, and quoted, the last great wilderness. It has been mentioned that the wilderness will be consumed by "a web of roads and pipelines, drilling rigs and industrial facilities".
Did you know that the first fully documented woolly mammoth skeleton was discovered in 1799.. Probably not right? Is it ethical for scientist to clone woolly mammoths? Well if they do clone a mammoth and bring them back where would they live? I think it is ethical i say that because they already have the DNA to clone the mammoth .
Polar bears have made some of the most extreme adaptions. Polar bears originated from brown bears. It is obvious that polar bears made massive evolutionary changes to be able to survive in the harsh artic conditions. To me, the most valuable changes polar bears have made is their furry coat. Just think about it, the artic can get to below 50 degrees.
Polar Bear Why is your world melting? , much like my idea, relies on fact and looks at how the habitat of the polar bear is disappearing. However in this book, the writing is impaired by its accuracy and the narrative does not read well. My focus is to find a balance between fact and description such as we can see in Ice Bear, though my diary is for an older audience. Ice Bear is also structured to follow the journey of a polar bear, leaving sensitive subjects such as hunting seals till the second half of the book so that the reader has time to understand why such things happen.
Polar Bears are endangered. Global Warming from carbon emissions and the greenhouse effect has contributed to a significant decrease in the polar bear population. Polar bears are struggling to survive. This website is intended to provide informative information about the effects of global warming, what is happening to the polar bears, informational videos, as well as a petition to sign to help these little (or should I say big), furry friends. Together.