je.st
news
Tag: polar bears
Arctic melt shrinks polar bears chances
2016-09-25 11:22:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate News Network: The world of the polar bear is shrinking everywhere. New research by scientists in the US confirms that each of the 19 known populations of Ursus maritimus is increasingly affected by the earlier sea ice melt in the Arctic spring, and the later arrival of ice every autumn. The finding is hardly a shock, as there have been warnings from conservationists about such things for years, with the polar bear becoming an icon of climate change concerns. And in most cases of species threat there are winners...
Tags: chances
bears
polar
arctic
Grizzlies and polar bears mating more frequently
2016-05-28 23:15:00| Climate Ark Climate Change & Global Warming Newsfeed
Comment: The warmer temperatures have led to expanded territories for the grizzlies to roam and run into polar bear mates, which could lead to polar bears as we know them to dissolve into the grizzly population. Grizzlies and polar bears have enough genetic similarity to allow for interbreeding - they are thought to have split off from the same genetic line no more than 500,000 years ago - but scientists have yet to determine if a hybrid bear can reproduce or what their survival rate might look like. "If...
Tags: frequently
bears
polar
mating
Grizzlies and polar bears are mating alarming reason
2016-05-25 13:49:00| Climate Ark Climate Change & Global Warming Newsfeed
The Villages Suntimes: So for now, scientists are taking the lead from media reports and calling hybrid bears with a polar bear father a "pizzly" and one with a grizzly bear father a "grolar". Female grizzlies tend not to stray far from their home ranges, and male polar bears don't usually creep into grizzly habitats. Unfortunately, as the breeding between the two bears becomes more common, it is likely that the polar bear will lose out on genetic diversity. Hybrids are known either as a grolar or a pizzly, depending...
Tags: reason
bears
polar
mating
Polar Bears Are Spending More Time on LandAnd That Could Be Bad for Humans
2015-11-19 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Washington Post: In recent years, polar bears have become the lovable poster children for climate change in the Arctic. And as their preferred sea ice habitat continues to diminish year after year, thanks to warming temperatures in the region, it seems theres no end to the polar bears troubles. Now, a new study in PLOS One has brought to light one more problem for one more polar bear population. Bears in the Chukchi Sea region -- thats the body of water between Russia and Alaska -- are spending more time on...
Polar Bear's Shocking Appearance May Be Tied To Climate Change
2015-09-14 21:54:00| Climate Ark Climate Change & Global Warming Newsfeed
Huffington Post: Arctic Dreams photography shared a photo on her Facebook page last month of a severely thin polar bear with protruding bones, taken in the Arctic Ocean's Svalbard region. Langenberger noted how she has noticed the summers getting warmer, the ice melting and more bears spending time on land. "I realized that the fat bears are nearly exclusively males which stay on the pack ice all year long," she wrote. "The females, on the other hand, which den on land to give birth to their young, are often slim....
Tags: change
appearance
climate
bears