AFFECTS OF CLIMATE CHANGE ON THE POLAR BEAR (Ursus maritimus) Eoinbutler.com Jennie McNary / Curator of Mammals Los Angeles Zoo.

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Presentation transcript:

AFFECTS OF CLIMATE CHANGE ON THE POLAR BEAR (Ursus maritimus) Eoinbutler.com Jennie McNary / Curator of Mammals Los Angeles Zoo

ICONIC SPECIES chevroncars.com Uniquely adapted for Arctic life: Large paws / long claws White/yellow fur Black hide / Thick fat layer Small ears Ability to swim TOP PREDATOR

ONE SPECIES: 19 SUB-POPULATIONS

momgoesgreen.com Threats to polar bears: Hunting Petroleum Industry Persistent Organic Pollutants Radioactive trash GLOBAL WARMING THREATS TO POLAR BEARS

NOT ENDANGERED? The polar bear is currently categorized as Vulnerable on the IUCN Red list. This assessment is based on the potential of an ~30% decrease in population size over the next three generations (~45 years). The US Department of the Interior has listed the polar bear as Threatened throughout its range under the Endangered Species Act. This designation is largely in response to the effects that climate change has had on the numbers and reproductive success of the polar bear.

DEPEND ON SEA ICE Sfgate.com momgoesgreen.com worldwildlife.org Travel Mate Den Hunt

SEA ICE CHANGES

Decrease in stored body fat Decrease in body condition Decrease in successful reproduction Decrease in cub survival

LAZoo photographer NASA JPL LAZOO AZA

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