Sentences with phrase «as ice seals»

Many human communities want answers about the current status and future of Arctic marine mammals, including scientists who dedicate their lives to study them and indigenous people whose traditional ways of subsistence are intertwined with the fate of species such as ice seals, narwhals, walruses and polar bears.

Not exact matches

As pack ice disappears, they can't hunt the seals that form the basis of their diet.

Make sure to leave about 1.5 inches at the top, because you will need to seal the bag as well allow room for the ice to expand.

Seal the pint - size bags, removing excess air as you do, and place it down inside the ice so that the ice cream bag is surrounded.

This granola is also great as a topping for fruit or ice cream or simply eaten by the handful like a trail mix and will keep for up to a month if stored in a sealed container in your pantry.

Gold award winners included: Brazil's Froneri for a cardboard ice cream cup featuring a PP in - mold label, closure with spoon inside and aluminum / PE sealing; and Insignia Technologies for its Freshtag shelf - life indicator tag designed to change color over a pre-set number of days at a prescribed temperature, while the color change is faster when the temperature increases; and PPi Technologies for MosquitoPaQ, which uses a frangible sealed pouch that allows consumers to mix and activate the dry and wet chemicals at the time of use, without having to pour out or touch the contents; after activation, consumers hang the pouch nearby and leave it alone as the repellent is released over the course of 15 days.

Other scientists have documented true seals using their pawlike forelimbs in stereotypically terrestrial ways, too, such as using the claws to dig out lairs in ice or uncovering buried fish from the seafloor.

These bears hunt the fat - rich seals that feed and breed around ice, and as seal habitat shrinks, so do the bears» prospects.

The bears» feeding strategy involves swimming from the mainland to and between offshore ice floes, poaching seals as they come up to breathe at holes in the ice.

Six groups of seals threatened by shrinking sea ice are gaining protections, as their habitats are forecast to shrink significantly due to global warming

This may well have been the case: the Norwegian sealing vessel Samson, which had no radio, was firing off rockets as it weaved its way through the ice.

Climate change models predict that the Arctic sea ice will continue to shrink in a warming world (as much as 40 % of the ice is expected to be gone by midcentury), and the resulting changes — including later formation of ice in the autumn, rain falling on the snow, and decreasing snow depths — will make it increasingly difficult for the seals to construct their snow caves, NOAA says.

AS POLAR bears roam the Arctic sea ice hunting seals, they are wasteful with their energy.

As Arctic sea ice melts earlier each year, polar bears in some parts of Norway and Greenland are abandoning ice floes for dry land and their favorite meal — seals — for seabird eggs.

With ice freezing later and thawing earlier, polar bears can't stock up on seal meat for as long, leading hungry animals to search for food in populated areas.

Gases captured and sealed in snow as it compresses into ice can provide researchers with snapshots of Earth's atmosphere going back hundreds of thousands of years.

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.

As if to seal the case, in early 2017, Cassini discovered silica grains and hydrogen gas in the ice plumes above Enceladus, indicating there must be hydrothermal vents on the floor of the subsurface ocean.

These magnificent animals are facing unprecedented threats as a warming climate and loss of their sea ice habitat make it more difficult for the bears to hunt prey like seals and find dens for their cubs.

Because they depend on sea ice to hunt seals, the polar bear is considered threatened as global warming melts and thins ice in this region.

To keep moisture and ice from forming on your outside mirrors, place large Ziploc bags over them and seal them up as much as possible.

Veteran naturalists such as author Stefan Lundgren lead hikes past penguin colonies, Zodiac land excursions, and kayak tours through ice floes, where you'll spot leopard seals and the occasional orca.

Whales would surface beside our kayaks, leopard seals would ignore us as we floated by their ice flows, penguins would peck at our legs when we explored the sea shore and the icebergs and glaciers were huge.

The orcas were able to successfully knock the seal off the ice, and just as they were closing in for the kill, a magnificent humpback whale suddenly rose up out of the water beneath the seal.

Her work showed that polar bears, while best known for their life at sea or on sea ice pursuing seals, have been able, at least in some circumstances, to gain significant nutrition on land as well, scarfing down geese and goose eggs, grasses and other fare when sea ice is in retreat.

Also, as warming temperatures limit seal hunting opportunities on the ice, adult male polar bears will likely fare the best, securing the best sites from smaller bears (females, subadults).

Some evidence of this may be the well - known behavioral (as well as genetic) similarities between the two species — such as grizzlies able to hunt seals on the ice and polar bears able to hunt and capture caribou on land.

What doesn't make sense is: gigantic mega-brained predators patterned like pirate flags who eat everything from sea otters to whales and spend hours batting thousand - pound sea lions into the air specifically to beat them up before drowning and shredding them; who wash seals off ice and crush porpoises and slurp swimming deer and moose — indeed, seemingly any mammal they come across in the water; yet who have never so much as upended a single kayak and who appear — maybe — to bring lost dogs home.

However, should these changes involve extinction of key species — such as polar bears, walruses, ice - dependent seals and more than 1,000 species of ice algae — the changes could represent a point of no return.»

In a very cold environment, the ice is too thick in most places for seals to penetrate and make breathing holes, and the bears suffer as a result.

(08/20/2013) As sea ice levels continue to decline in the northern hemisphere, scientists are observing an unsettling trend in harp seal young mortalities regardless of juvenile fitness.

Polar bears are dependent on sea ice as a platform for hunting seals, and as a pathway to coastal areas.

Polar bears like this one are excellent swimmers but use floating sea ice as pathways to coastal areas and as platforms from which to hunt seals.

As Arctic sea ice melts earlier and freezes later each year, polar bears have a limited amount of time to hunt their historically preferred prey — ringed seal pups — and must spend more time on land.

Sealing time of air bubbles at best about 70 years and mixing with ambient air through diffusion all that time, chemical changes thereafter, different diffusion rates for different gases thereafter... ice cores are a target - rich environment for casting of doubt about how well they perform as global temperature proxies.

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.

As the BRT stated, «Research suggests that, during the time of whelping and nursing, bearded seals prefer areas where the percent concentration of sea ice is > 25 %.

Melting ice during our recent interglacial, known as the Holocene, has been good for seals.

As the BRT reported, bearded seals prefer foraging in open ice cover where the sea floor is less tan 100 meters deep.

Due to the advantage of accessing the sea floor as soon as dwindling sea ice permits, bearded seals are frequently associated with 70 to 90 % sea ice concentrations.

Each winter bearded seals in the Pacific sector migrate southward as winter ice prevents access to their favored feeding grounds.

Bearded seals are in competition with other benthic (sea floor) feeders, walrus and gray whales, who likewise migrate into the Arctic as the ice melts.

Polar bears (Ursus maritimus) rely on sea ice for roaming, breeding, and as a platform from which to hunt seals.

Ecological covariates associated with survival suggest that the decline may be as a combined result of short - term and local density dependence, stabilization of harp seal (Pagophilus groenlandicus) numbers and declining ice conditions.

The loss of sea ice can only have knock - on effects for Arctic creatures, such as polar bears, which cross onto the sea ice to hunt for their favoured prey, seals.

Mammals and birds utilize sea ice as haul - outs during foraging trips (seals, walrus, and polar bears in the Arctic and seals and penguins in the Antarctic).

Few people know that Arctic ringed seals (Phoca hispida, aka Pusa hispida) give birth and breed in the offshore pack ice in the spring, as it is seldom mentioned by either seal or polar bear specialists.

Shallow snow cover over birthing lairs, which are built against pressure ridges as shown in the diagram above (considered to be less than 25 - 32 cm over the lair, or less than 20 cm over flat ice), 1 can mean the snow caves are easier for polar bears to break into (and consume the pup)-- that's good news for polar bears (in the short term) but bad news for ringed seals.

However, as you'll see by the sea ice thickness maps below, there may be good reason for the lack of ringed seal lairs, and a general lack of seals except at the nearshore lead that forms because of tidal action: the ice just a bit further offshore ice looks too thick for a good crop of ringed seals in all three years of the study.

That includes records of bird migration patterns and the dates that cherry trees bloom, as well as analyses of air bubbles sealed inside glacial ice cores and of the shells of foraminifera, single - celled sea creatures.