These genetically and geographically isolated bears survive longer without sea ice than scientists thought possible
By all accounts, there shouldn’t be polar bears in southeastern Greenland—but apparently no one told the polar bears.
Indigenous subsistence hunters in Greenland have long held that polar bears could be found year-round in fjords all the way to the country’s southernmost tip. When the government of Greenland commissioned a study on the distribution of polar bears, Laidre and her team followed “invaluable” hand-drawn maps from their Inuit collaborators and identified previously unstudied bears living at the foot of glaciers near the abandoned southeastern settlement of Skjoldungen-Timmiarmiit.
Laidre found that some bears stayed in a single fjord or a couple of adjacent fjords for years at a time, occupying a home range of as little as five or six square miles. That’s a postage stamp compared to the home ranges of the northeastern population, where a typical bear traveled more than 900 miles a year across the sea ice.
“What’s interesting or special about this new population of bears is that they actually seem to know how to deal with this,” Ugarte says. Eleven of the tracked bears were caught up in the currents and traveled an average of 117 miles on the ice in under two weeks—but within a month or two, all managed to make their way back to their home fjords by swimming in the frigid waters and ambling across land.
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