Sentences with phrase «polar bear biologist who»

The new polar bear paper is by a group of authors led by Steven Amstrup, the United States Geological Survey polar bear biologist who led the government analysis of the bear's prospects.

Not exact matches

«It is possible that Svalbard may have provided one such important refuge during warming periods, in which small polar bear populations survived and from which founder populations expanded during cooler periods,» argues biologist Charlotte Lundqvist of the University at Buffalo, The State University of New York, who is a co-author of the new study.

As their hunting behavior shifts from ice to land, the polar bears «have progressively arrived earlier and earlier to have access to more eggs,» says biologist Børge Moe, another principal author of the study who works at the Norwegian Institute for Nature Research in Kongsfjorden, where seabird egg predation is just beginning to increase.

July 31, 2011, 11:35 a.m. Updated There's been a rush to all manner of judgments over the strange case of Charles Monnett, the biologist for the Bureau of Ocean Energy Management, Regulation and Enforcement who provided a powerful talking point for climate campaigners, including former Vice President Al Gore, with his description of several drowned polar bears spotted during an aerial marine - mammals survey in 2004 — an observation enshrined in a short paper published in Polar Biology in 2006.

Steven C. Amstrup, the federal biologist who led an analysis last year concluding that the world's polar bear population could shrink two thirds by 2050 under moderate projections for retreating summer sea ice, is once again in the field along Alaska's Arctic coast, studying this year's brood of cubs, yearlings and mothers.

In my piece weighing the merits of very different strategies for giving ice - dependent polar bears a chance in a warming world, I promised I'd post the views of some of the biologists, sea - ice researchers and climate scientists who've been tracking relevant questions.