Animal Watch
Endangered: Polar Bear
Species: U. maritimus
Class: Mammalia
Order: Carnivora
Family: Ursidae
Numbers: 20,000 to 25,000 bears; population has dropped 22% since
the early 1980s.
Threats: Global Warming, CFC, pollution for PCB,
Habitat: Tundra around the North Pole, Greenland and towards the
north side of North America, Europe and Asia.
Food: These animals are good hunters and they feast on seals,
rodents, shellfish, crabs, Beluga whales, young walruses, occasionally
Muskox or Reindeer, fish and seabirds. They sometimes eat berries,
roots, and kelp in the summer.
Range: Their range is limited by the availability of the sea ice
they use as a platform for hunting seals. Global warming threatens
the bear's survival as a species.
One of the most majestic animals in the world is being directly
threatened due to global warming. The polar bear is a vulnerable
species at high risk of extinction. In May 2006, the World Conservation
Union listed polar bears as a vulnerable species as currently one
in three of the polar bear subspecies are threatened. In the arctic
the polar bear is the undisputed king of the land with no known
enemies except for one.
MAN.
Yes, due to man’s
neglect of the Earth we have shrunk the polar bears natural habitat
and hunting range. Scientists and climatologists
believe that the projected decreases in the polar sea ice (due
to global warming) will reduce their population by two thirds by
mid-century. Polar bears are threatened by the spread of hormone-disrupting
chemicals and global warming. This affects the polar ice edge ecosystem,
the habitat of walrus, seals and penguins, as well as bears. Due
to global warming the icecaps are shrinking which makes the prey
of the polar bear easier to spot the polar bear and now they have
to swim much further to capture their prey.
The decline in polar bear numbers is a direct correlation to the
global warming. Ice is also breaking up earlier therefore forcing
bears ashore before they have time to build up sufficient fat stores.
This has forced the bears to swim long distances, which exhausts
them. Fishermen has spotted polar bears swimming further and further
out in the ocean just to feed and many polar bears have drowned
due to lack of energy.
The results of global warming have caused bears to be thinner;
hence decreasing reproduction, and lower juvenile survival rates.
The bears are now weaker and thinner with less natural body fat
due to the retreat of ice inland. Before they have been able to
replenish their reserves of fat by
feeding on seal pups, which live on the ice but due to the shrinking
habitat, the polar bears are becoming malnourished and do not have
enough insulation to last them through the winter.
Adult males generally weigh between 720 and 1,700 pounds (363
and 771 kilograms) and despite polar bears being the largest predators
on land they are being starved and choked by their environment
that man has caused.
Man is slowly killing the polar bears.