Anyone Spotted those Polar Bears?
This polar bear (Ursus maritimus), is pictured on the pack ice in the Arctic circle. The photo is from WWF.
(c) WWF / www.JSGrove.com
I read a story about a whole group of polar bears, said to be swimming for their lives off the coast of Alaska. I asked my colleague Emily Schwing in Alaska if she had any more background. She agreed to send us her own guest blog entry. Here it comes:
On August 16th, nine polar bears were sighted swimming in the open waters of the Chukchi Sea off the northwest coast of Alaska. Federal observers were conducting aerial surveys when they spotted the bears swimming more than 15 miles off shore. One bear was sighted nearly 65 miles off the coast and some of the animals were reported swimming north.
Environmentalists argue the recent sighting could indicate that polar bears are opting to take longer, more dangerous, energy demanding swims in search of land or stable sea ice. Sea ice coverage in the Artic was reported at a record low in 2007 raising serious questions about the extent of polar bear habitat available to the marine mammal. Polar bears depend on sea ice as a way to hunt ringed seals and other prey.
Between 1987 and 2003, only 12 bears were observed swimming in open water. But in 2004, 51 bears were found swimming in the open ocean. That same year, four polar bears were found drowned in the Beaufort Sea following a storm. The fate of the nine bears sighted last week is unknown.
According to biologists with the US Geological Survey, polar bears are very strong swimmers, but distances of 50 to 100 miles could be exhausting for the animal. Scientists and environmentalists alike speculate that as sea ice continues to decline, events like this could happen more often
Federal marine contractor, Science Applications International Corp was conducting the aerial surveys for the Minerals Management Service, which leased 2.76 million acres offshore for future oil and gas development in February. The surveyors were looking for whales and other marine mammals when they spotted the polar bears.
The US department of the Interior Secretary Dirk Kempthorne listed the polar bear as a threatened species under the Endangered Species Act in May of this year, after a large body of scientific information indicated that arctic sea ice will continue to decline.
The state of Alaska, under Governor Sarah Palin is currently suing the US Federal Government over the listing of the bear citing a lack of strong scientific data and information that relies on too broad a timescale.
And if anyone hears any more about those bears, please let us know. You can put the comment on the blog or send a mail to features@dw-world.de
Emily found this interesting bear story on the reuters website and promises more on US and Canadian attitudes towards polar bears in the near future.
