Polar Bears Research Paper

This first study helps me answer my question regarding climate changes affect on polar bear reproductive success because it directly addresses the reduction of body size and cub recruitments as a result of sea ice decline, due to climate change. This information provides a correlation between climate change and sea ice decline. By completing the study, a direct correlation between decline in optimal ice habitats and reduction in maternal condition was found based on body weight and size. In addition, they found that maternal condition directly impacts the number and survival of offspring. By combining all the results it is adequate to conclude, according to this study, that climate change is lowering the reproductive success of polar bears by decreasing sea ice; therefore, decreasing maternal condition and leading to reduced reproductive output and juvenile success.

Polar bears are the top predator in the tundra biome. The polar bear mainly eats seals. Polar bears are the largest land carnivore on earth, their average weight is 990 for males, and 500 for females. Polar bears have white fur, but black skin. The black skin is used to absorb sunlight for warmth, while the white fur is used for camouflage.

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).

Polar bears are one of the most endangered species in the IUCN states this is due to Global warming which most of us are still ignorant about, It has a climatic impact on the Arctic by the rising temperature which results in melting the ice glacier and these glaciers are the homes of polar bears that have been disappearing and shrinking making it

Polar bears are one of so many animals that are going extinct . The polar bear is a bear who is a carnivorous whose native range lives in the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. The polar bear is going extinct for many reasons but the main reasons is that there is ongoing and potential loss of their sea ice habitat because of climate change.According to WWF “Polar bears were listed as a threatened species in the US under the Endangered Species act in May 2008. The survival and the protection of the polar bear habitat are urgent issues.”

One of these reasons is the climate change. Because of the increase in temperature, the arctic ice is shrinking. Greenhouse gases are the main cause for the melting ice which is getting smaller about ten percent every decade. The lack of ice is causing many animals to lose valuable land. Polar bears mainly live in Canada, but also live in Russia, Maritola, and Alaska. This land is melting and they are losing their habitats. While their name, Ursus Maritimus, means sea bear, and they can swim about six miles per hour for up to sixty miles, they do need to rest. Polar bears rely on ice caps to rest and to hunt on. Ice loss means longer distance they need to travel before resting and hunting. Ice is the primary way polar bears hunt, using openings in the ice to hunt seal. They wait for seals to come up for breath, and then dinner is served. However, without ice their method is useless. This causes

Polar bears are mammals that are found in the ice lands of the Arctic Ocean. Polar bears are the biggest species of bears in the world. The polar bears name Is actually meant to be “Sea Bear”, because they are known not to just spend a great deal time to the coast, but they are also strong and capable swimmers. Polar Bears population have went lower because of hunting, pollution, and drilling for oil and gas leading to them being as listed as a threatened species. Polar bears skin type is that they have fur all over them.

Polar bears are evolved one to three million years ago from the brown or grizzly bears but polar bears are unlike with brown and grizzly bears. Polar bears are only bear species to be considered marine mammals. This is a big different with other bear species. Polar bears are also called by Ursus maritimus.Ursus maritimus is a scientific name of the polar bear. Polar bear means ‘sea bear’ in Latin language. They are biggest carnivores among land animals and they are largest species of bear. There is 25000, to 40,000 polar bears in the world. They are divided into 6 core population. Usually, they are live Greenland, Barent, Canadian Arctic, Alaska, North Slope, and Soviet Union (Russia). They are eat ringed seal, bearded seal, walrus, and whale

The polar bear is the largest species of bear in the world. Adult males can grow over 8 feet in length and weigh about half a ton. Females grow up to 7 feet and can weigh over 600 pounds. The distinctive polar bear is well-known for its white or creamish-yellow fur. Their fur is very thick. Their toe pads and nose reveal their

Polar bears may appear white, but their fur is clear. That's why sometimes Polar bears are blue or purple. This means the water is unhealthy. Polar bears are huge, they are even at the top of the food chain. Polar bears like to eat seals as a meal to survive in places way up north.

The current estimates of polar bear populations are even uncertain as the species is not very easily observable due to the Arctic wilderness and their very large home ranges. Of the 19 subpopulations, scientific estimates are only available for 14 of them, which leaves estimates uncertain for the remaining 5 subpopulations (PBSG, 2014). Determining population size is a vital component of conservation management of a species. Such things as hunting quotas are based on this vital information. To put the issue into perspective, for the 14 subpopulations with scientific estimates, the estimated population count is 18,349 polar bears compared to the 20,000 to 25,000 total population estimate (PBSG, 2014). This leaves a difference of several thousand polar bears with no scientific estimation of an actual population count. With the uncertainties in how populations will respond to environmental changes, flexible and adaptive management will be crucial and requires a clear articulation of population targets (Laidre, et al.,

If the polar bear had to swim after their prey this would tire them out and they would most likely fail to catch their prey in order to consume it anyway. So the Ice caps are a polar bears hunting technique (BBC, 2014). Over the years scientists have found that there are around 19 populations of polar bear I four different ice regions throughout the artic. Polar bears have evolved over time and have adapted well to the extreme temperatures in the Artic unlike their land based ancestors (National geographic, 2014).Polar bears have particularly small ears to minimise heat loss, the smaller their ears are the less surface area there is (Endangered polar bear, 2013). Polar bears have also adapted to having a massive and extremely padded paws in order to protect them from the icy floors and a full, thick, fur coat; to protect them from the harsh weathers that living in the artic brings (polar bears international,

polar bears live in artic no wear else. the polar bear is the biggest carnivore who which lives on land. the animal’s seals make up most of polar bears diet. polar bears actually have 42 teeth unlike us humans a polar bear was once a mascot for the Olympics in Canada. polar bears can live up to 15 years 18 at the most. actually the longest a polar bear that lived was 45years. a polar bear female

In the scientific article Feeding and reproductive ecology of two polar bear populations the researchers focused on the study of two polar bear populations that being the Chukchi Sea and the Beaufort Sea. Primarily researchers investigated the effects of ice loss in these areas with a focus finding out whether size, condition, and reproductive indices are being affected by climate changes leading to sea ice loss. This study is an important area of research because of the vast decline in sea ice, leading to Polar bear deaths. Polar bears depend on sea ice because it’s a way for them to hunt for prey, that being seals. In order to examine polar bear conditions, polar bears were located from a helicopter and immobilized with a dart containing

Polar bears are known for to studied to gain an understanding of what is happening throughout the Arctic. A polar bear at risk is often a