Polar Bears in the Wild Efforts to Protect This Endangered Species Summer 2010 Workshop in Biology and Multimedia for High School Teachers.

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Life Sciences-HHMI Outreach. Copyright 2006 President and Fellows of Harvard College. Summer 2006 Workshop in Biology and Multimedia for High School Teachers.
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Presentation transcript:

Polar Bears in the Wild Efforts to Protect This Endangered Species Summer 2010 Workshop in Biology and Multimedia for High School Teachers

Polar Bears Endangered! Biodiversity Habitat Feeding Behavior Distribution Size / Weight Evolution Denning Reproduction Discussion Harvard University Life Sciences –HHMI Outreach Summer 2010 Workshop for Biology Teachers

Habitat is Shrinking Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Food is Difficult to Find arlg.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Ringed SealBearded Seal Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Ice Flow is Shrinking --Jessica_Robertson--Jessica_Robertson.jpg Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Global Warming Impacts Ice flow cover and Migration Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Importance of Pack Ice: Denning Bears spend most of their time on pack ice year around. They come ashore mainly when ice melts. Birthing is primarily out on the ice; when on land, time is short and return to the ice is rather quick. Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Pack Ice Pack ice changes with seasons. Polar bears must migrate with the flows to survive. Food availability also varies with seasons. Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Seasonal Changes in Ice Pack Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Bear Territories Are Large Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Bears are often sedated to “tag” them. Tagging is used to keep an accurate count. Bears are not harmed. Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

Harvard University Life Sciences - HHMI Outreach Summer 2010 Workshop for Biology Teachers

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