Tag: Arctic

May 11, 2016

Are polar bears changing their diet?

Deep in the Western Hudson Bay, populations of bearded seals are declining. As polar bears prey on these seals, researchers wonder how similar changes in prey availability could potentially affect...

December 16, 2015

Muskox Populations Expand in Western Hudson Bay

There were miles and miles of rolling hills, wetlands so clear you could see fish in the lake from the plane and shrubby tundra with patches of green. Rocky areas...

October 15, 2015

Warm Arctic Weather Could Be Shrinking Butterflies

Butterfly size may be affected by warming Arctic temperatures, according to a new study. “Our studies show that males and females follow the same pattern and it is similar in...

September 11, 2015

TWS Member: Hudson Bay Polar Bears Could Survive Ice Melt

Polar bears in the western Hudson Bay may be able to survive the ice melt, according to a new prediction model. “We do know that bears eat on land,” said...

June 29, 2015

Seabirds Bring Contaminants to Land Ecosystems: Study

Migratory seabirds carry the marine pollution they ingest at sea back to their nesting sites on land, according to a new study. “It is yet another example of unintended effects...

Male Polar Bear Near Kaktovik Alaska
April 13, 2015

DDT, PCBs Could Affect Polar Bear Hormones

Sitting at the top of the food chain as the world’s largest land carnivore has its benefits. You have your choice of food and few predators to confront. But a...

Male Polar Bear Near Kaktovik Alaska
April 1, 2015

Polar bears Won’t Thrive on Land Food as Ice Melts

Polar bear populations whose main diet sources are disappearing with melting icebergs may not be able to subsist long on terrestrial food sources. “Although some polar bears (Ursus maritimus) may...