Polar bears discovered searching with out sea ice elevate hope species might survive local weather disaster

A gaggle of polar bears seem to have tailored to the climate crisis after an remoted inhabitants was found in southeast Greenland, regardless of an absence of sea ice for many of the yr.

Researchers situated the polar bears within the fjords of southeast Greenland, which is surrounded by mountains and an ice sheet to the west and ocean to the east. Because the area is to this point south, sea ice protection lasts for less than round 100 days every year.

The invention has led scientists to consider that some polar bears – who usually want sea ice to outlive and hunt – might survive the lack of ice brought on by the local weather disaster.

Consultants have warned the bears might face extinction by the tip of this century as international warming causes sea ice to shrink.

The workforce of scientists consider the remoted sub-population has tailored to searching on the ice that has calved off glaciers. Utilizing genetic evaluation, scientists learnt that the group of polar bears had been remoted from different teams alongside Greenland’s east coast for a minimum of 200 years.

“They’re probably the most genetically remoted inhabitants of polar bears wherever on the planet,” mentioned co-author Beth Shapiro, a professor and geneticist on the College of California, Santa Cruz, and investigator on the Howard Hughes Medical Institute.

“We all know that this inhabitants has been residing individually from different polar bear populations for a minimum of a number of hundred years, and that their inhabitants dimension all through this time has remained small.”

The researchers, whose research was revealed within the journal Nature, hope the survival of the small inhabitants of polar bears in situations with low sea ice suggests there’s a likelihood the species can survive whilst sea ice retreats additional north every year.

Monitoring information additionally confirmed the workforce of researchers that tagged polar bears didn’t transfer very far, and would even return to their traditional atmosphere when carried away on ice platforms within the speedy present down the east coast of the island.

These bears would then soar off the ice platforms, swimming again to shore and head again to their traditional atmosphere.

“This small, genetically distinct group of bears might make clear how polar bears as a species may persist in an ice-free Arctic,” says lead writer Kristin Laidre, an animal ecologist on the College of Washington in Seattle.

However Dr Laidre cautioned “we must be cautious about extrapolating our findings, as a result of the glacier ice that makes it potential for southeast Greenland bears to outlive just isn’t out there in many of the Arctic”.



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