Scientists have reported some uncommon excellent news from the Arctic. Because the local weather adjustments and the ice melts, in a single area at the least, polar bears are thriving — discovering new methods to outlive, and even packing on the kilos.
“A fats bear is a wholesome bear,” Jon Aars, a senior scientist with the Norwegian Polar Institute, informed CBS Information on Thursday.
He is been monitoring polar bears on the distant, Arctic Norwegian archipelago of Svalbard for greater than 20 years. He led a staff of researchers who meticulously tracked the burden and dimension of practically 800 bears between 1992 and 2019.
They discovered the polar giants to be in fine condition, in a position to survive and to proceed elevating new cubs.
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“I used to be fairly stunned,” Aars admitted, “as a result of we have now misplaced a lot sea ice since I began.”
For years scientists have raised the alarm that shrinking sea ice cowl might put polar bears in danger, as they use the ice as a platform from which to hunt for seals.
“A few of us would predict that they need to be in hassle already,” Aars mentioned.
However what his staff has discovered suggests the bears are adapting to smaller ice patches, and it might even be serving to them hunt extra effectively as their prey, which additionally depends on the ice, is concentrated in smaller areas.
“I feel what this reveals is that they want much less sea ice than we thought,” Aars informed CBS Information.
His staff’s analysis additionally discovered that the melting ice is pushing polar bears to get artistic on land — the place they’re more and more feasting on different prey, comparable to reindeer and walruses.
“A few of them could be on land as a lot as 90% of the time now, which is loads,” he mentioned.
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Whereas thriving bears is undeniably excellent news, Aars confused that extra analysis is required to know how polar bears in different components of the Arctic are adapting to a warming local weather. And he cautioned that his staff’s analysis doesn’t try to predict how the animals will deal with the persevering with warming of the Arctic.
“Bears are nonetheless ready to deal with the state of affairs as it’s at this time,” he mentioned. “The unhealthy information is that predictions [are that] we will lose sea ice quick in Svalbard.”
Aars and lots of different scientists stay involved, in different phrases, that the positive factors by the Svalbard bears will likely be momentary, and may very well be reversed.
