Sentences with phrase «summer sea ice habitat»
Not exact matches
Recruitment is related to the winter sea ice cover from the previous year, as diminished sea ice cover reduces habitat available for over-wintering juvenile and adult krill and reduces the size of the food - rich marginal sea ice zone in summer.
http://journals.plos.org/
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.
But just as the species has been recovering from that threat, global warming is creating new pressures through the loss of summer sea ice and other impacts on the bears» preferred maritime habitat.
Meeting in Tromso, Norway, representatives from the five signatories — the United States, Norway, Canada, Russia and Denmark — said that worldwide agreement and action would be needed to reduce the risk, driven by accumulating greenhouse gases, that polar bears would lose their sea - ice habitat in summers later this century.
The average historic summer minimum (the yellow line in Fig. 1) indicates large portions of the Chukchi Sea's foraging habitat have been covered with summer ice concentrations of 50 % and greater for much of the 20th century.
Tagged Arctic, Beaufort, fall, habitat, Kaktovik, polar bear, sea ice, Southern Beaufort, summer, thick spring ice
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.
Much of the Bearded Seal's habitat encompasses seasonal ice zones where first - year sea ice is renewed every winter but melts completely every summer.