Sentences with phrase «by polar bear biologists»

A new paper by polar bear biologists (Rode et al. 2015) argues that terrestrial (land - based) foods are not important to polar bears now and will not be in the future — a conclusion I totally agree with — but they miss the point entirely regarding the importance of this issue.

Not exact matches

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.

[Oct. 2, 2012, 1:23 p.m. Updated Charles Monnett, the federal biologist at the heart of the investigation described below, has been cleared of scientific misconduct over his polar bear surveys (report link), but his case remains a source of disputes at several levels — as described in detail by Jill Burke in Alaska Dispatch.

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.

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.

While Mr. Kempthorne and Dale Hall, director of the Fish and Wildlife Service, said Wednesday that they saw no separate risk to polar bears from oil and gas activity, the latest assessment of the species for the International Conservation Union, by a group of experts including Fish and Wildlife Service biologists, did include such activity in a list of threats, including toxic contaminants, shipping and recreational viewing.

Many Arctic biologists insist that polar bears are not just threatened by future global warming and a «melting ice cap.»

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.

The low - ice future that biologists said would doom polar bears to extinction by 2050 has already happened in 8 out of the last 10 years.

Oddly, polar bear biologists chose to dispel the serious concerns over invasive research by presenting the outputs of computer models.