Tag: polar bear

June 2, 2022

JWM: Helicopter capture doesn’t unduly stress polar bears

The heavy fog was coming in fast as John Whiteman and his colleagues worked to measure an adult female polar bear north of the Alaskan coast. They had shot the...

March 9, 2022

Polar bear ranges increase as sea ice shrinks

As climate change causes sea ice to recede in the Arctic, polar bears must decide whether to travel farther for their ringed seal prey or swim to land in search...

May 28, 2021

Polar bears hunt seals along large cracks in sea ice

Polar bears in western Hudson Bay sometimes follow large, linear cracks in the sea ice while searching for prey. Those large cracks, known as flaw leads, can occur between fast...

February 25, 2021

Climate change presents problems for bears, narwhals

Climate change is causing energy use problems for Arctic mammals. Melting or shifting ice patterns means both narwhals (Monodon Monoceros) and polar bears (Ursus maritimus) need to travel more to...

December 2, 2020

Northernmost polar bears temporarily benefit from warming

Polar bears in one of the northernmost populations in the world are seeing some short-term transient benefits from climate change. Climate change in Kane Basin, between northwestern Greenland and Canada’s...

December 23, 2019

Two Wisconsin students win student presentation awards

Two University of Wisconsin students won this year’s student presentation awards at the 2019 Joint AFS/TWS Conference in Reno, Nevada, for research ranging from the mountains of South America to...

April 10, 2019

Polar bears are eating plastic bags

Polar bears are rummaging in dumps and ingesting plastic bags, according to new research. An analysis looking at the stomach content of 51 polar bears killed by subsistence hunters in...

February 20, 2019

Changes come to polar bear capital of the world

As temperatures get warmer in Churchill, Manitoba, residents may be seeing some changes to their town, which is known as the polar bear capital of the world. Many people flock...

January 11, 2019

Previously unknown contaminants found in polar bears

It’s hard to look for something when you don’t know what you’re looking for. That is what researchers faced when they tried to find contaminants in polar bear (Ursus maritimus)...

May 15, 2018

As climate warms, polar bears take advantage of eider eggs

Polar bears (Ursus maritimus) in the Canadian arctic are taking advantage of a unique food source — common eider (Somateria mollissima) eggs — according to new research. In a study...