Sentences with phrase «of polar bear habitat»

DOI: 10.5194 / tc -10-2027-2016 Sea - ice indicators of polar bear habitat

The best known consequence of disappearing sea ice in the Arctic is the loss of the polar bear habitat.

Stern, H., & Laidre, K. (2016) Sea - ice indicators of polar bear habitat.

Detrimental effects include loss of polar bear habitat and increased mobile ice hazards to shipping.

Here's where the rubber hits the road: even while the Interior Department was slowly taking steps to give these bears ESA protection, the Bush Administration opened almost 30 million acres of polar bear habitat to oil and gas exploration, a move that by their own admission threaten polar bears.

Not exact matches

That corresponds to a roughly 3 1/2 week shift at either end — and seven weeks of total loss of good sea ice habitat for polar bears — over the 35 years of Arctic sea ice data.

The Interior Department lists the polar bear as a «threatened» species — one at risk of becoming endangered — due to dangerous declines in their sea ice habitat

While keeping the rule — which limits use of the Endangered Species Act to curb emissions of greenhouse gases — Salazar held open the possibility of adding habitat protections for the polar bear later.

An international «Red List» of threatened species says that the polar bear is vulnerable to extinction because of a projected decline in its habitat linked to climate change that is melting sea ice in the Arctic.

«To see the polar bear's habitat melting and an iconic species threatened is an environmental tragedy of the modern age,» Salazar said.

The rule in question was finalized by the Bush administration in December, six months after the polar bear was declared a threatened species due to the melting of its sea - ice habitat.

The U.S. Department of the Interior Wednesday listed the polar bear as a threatened species under the Endangered Species Act (ESA) of 1973 based on evidence that the animal's sea ice habitat is shrinking and is likely to continue to do so over the next several decades.

The habitat overlap of polar bears and their main prey, ringed seals, is disappearing and the bears are instead getting closer to nesting birds

Sea ice is a crucial part of the ecosystems at both poles, providing habitat and influencing food availability for penguins, polar bears and other native species.

By shedding light on potential mechanisms that facilitated that bear's survival during her long swim, as well as the overall metabolism and activity of bears, the current study «profoundly contributes to understanding the value of summer habitats used by polar bears in terms of their energetics,» Harlow says.

Amstrup adds, «It fills a gap in our otherwise extensive knowledge of polar bear ecology and corroborates previous findings that the key to polar bear conservation is arresting the decline of their sea ice habitat.»

The scientists said drilling on the coastal plain would be particularly harmful because it contains a «unique compression» of habitats supporting animals like polar bears, grizzly bears, wolverines, representing «the greatest wildlife diversity of any protected area above the Arctic Circle.»

The population looks set to fall again as melting pack ice forces polar bears back to the land - based habitats of brown bears, where interbreeding has recently been observed.

Polar species, including the polar bear, ice - dependent seals, and emperor penguins are especially vulnerable to the effects of climate change as their unique sea ice habitats shrink due to warming.

The Arctic Ocean's sea ice and waters are habitat for many imperiled species, from polar bears to bowhead whales — and they all face the threat of dirty fossil - fuel development.

Often photographed clinging to Arctic ice floes as its habitat melts away into warming waters, the polar bear is the poster child for U.S. efforts to save wildlife on the brink of extinction using the Endangered Species Act.

It had been a dream of mine to see polar bears in their natural habitat.

It is pushing for new oil and gas drilling in polar bear habitat while biologists for Interior Department, prodded by legal action, recommended the bear be given threatened status under the species act because of the warming of the Arctic and summer retreat of sea ice.

Also, I'm not sure I see strong support for this concluding sentence: «Although polar bears have persisted through previous warm phases, multiple human - mediated stressors (e.g., habitat conversion, persecution, and accumulation of toxic substances in the food chain) could magnify the impact of current climate change, posing a novel and likely profound threat to polar bear survival.»

Extent, for once, is crucial in determining the amount of absorbed solar radiation, the area of polar bear (and other animals») habitat, the amount of snow that falls onto sea ice, etc..

The key danger to polar bears is malnutrition or starvation due to habitat loss: Polar bears hunt seals from a platform of sea ice.

Because polar bears are vulnerable to this loss of habitat, they are, in my judgment, likely to become endangered in the foreseeable future — in this case 45 years....

An oil spill could devastate endangered species like polar bears and bowhead whales, destroy habitat for millions of migratory birds, and jeopardize the subsistence - based Inupiat culture.

Regardless of whether hybridization rates may increase, at least for polar bears any effect they might have on population welfare pale by comparison to the loss of habitat and subsequent loss of foraging ability.

The next step is to secure the long - term survival of the species by ensuring that the polar bear habitat in the Beaufort and Chukchi Seas is protected from the threat of oil and gas drilling.

Polar bears are being driven from their usual habitats on the disappearing polar ice at the same time that grizzlies are moving farther north because of global warming, resulting in cross-breeding.

Lets see understanding the habitat and behavior of polar bears with the fact of there is local changes consistent with AGW and that mainstream scientists --

Climate warming is reducing the availability of their ice habitat, especially in the spring when polar bears gain most of their annual fat reserves by consuming seal pups before coming ashore for the summer.

«Variation in the response of an Arctic top predator experiencing habitat loss: feeding and reproductive ecology of two polar bear populations.»

The predominance of local vegetation in collected scat suggests little movement among habitat types between feeding sessions, indicating that the polar bears are keeping energy expenditure down.

A new paper that combines paleoclimatology data for the last 56 million years with molecular genetic evidence concludes there were no biological extinctions [of Arctic marine animals] over the last 1.5 M years despite profound Arctic sea ice changes that included ice - free summers: polar bears, seals, walrus and other species successfully adapted to habitat changes that exceeded those predicted by USGS and US Fish and Wildlife polar bear biologists over the next 100 years.

Globally, the ice is spitting - distance close to the 1981 - 2010 average calculated by the NSIDC for this date — which means lots of winter / spring hunting habitat for polar bears.»

Far from being endangered, vulnerable, or threatened, polar bears are thriving; their populations have exploded in virtually all of their habitats of the circumpolar nations.

The polar bear is perfectly suited to its frigid, icy habitat: They have two layers of fur — glossy, waterproof «guard» hairs and dense under - fur — and a thick layer of fat — 2 to 4 inches (5 to 10 centimeters)-- beneath their skin that helps keep them warm.

Today, I'll take a look at sea ice and ringed seal habitat in the Gulf of Boothia and M'Clintock Channel, as well as information from a study on polar bear diets, which together shine some light on why the Gulf of Boothia is such a great place for polar bears.

Tagged Barber and Iacozza, bearded seal, beluga whales, Gulf of Boothia, local Inuit knowledge, M'Clintock Channel, multiyear ice, narwhal, polar bear population density, ringed seal, sea ice habitat, Thiemann

Many, many people associated climate change with the notion that polar bears might become extinct as their Arctic habitat disappeared in the face of future climate changes.

Franz Josef Land provides the most stable sea ice habitat for Barents Sea polar bears because it is largely beyond the influence of warm water influxes from the North Atlantic.

Bottom line: Barents Sea polar bears are loyal to this region because the eastern portion has the habitat they require to thrive even when sea ice cover in the western portion essentially disappears for thousands of years at a time.

«Loss of habitat directly impacts polar bears, seals and walruses, which use the ice for foraging, reproduction and resting, and for also for people who use ice for hunting, travel and other activities.»

Abstract Increased land use by polar bears (Ursus maritimus) due to climate - change - induced reduction of their sea - ice habitat illustrates the impact of climate change on species distributions and the difficulty of conserving a large, highly specialized carnivore in the face of this global threat.

Climate warming is reducing availability of their ice habitat, especially in spring when polar bears gain most of their annual fat reserves by consuming seal pups before coming ashore in summer.

Polar Bears Have Big Feet has no gory images, no discussion of starving bears, climate change, or threatened species — just fabulous pictures of polar bears doing what they do in their natural Arctic habitat, accompanied by lighthearted descriptions.

Sea ice habitat for polar bears has not become progressively worse each year during their season of critical feeding and mating, as some scaremongers often imply.

I have some concerns about some few species near the margins of their suitable habitat range, such as polar bears.