Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

As Arctic Ice Vanishes, Polar Bear Problems W. Humans Spike, Despite 22% Decline In W. Hudson Bay #s

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Topic Forums » Environment/Energy Donate to DU
 
hatrack Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Sep-17-09 12:53 PM
Original message
As Arctic Ice Vanishes, Polar Bear Problems W. Humans Spike, Despite 22% Decline In W. Hudson Bay #s
You can almost hear Sarah Palin cocking her rifle. As climate change causes sea ice to shrink, the number of "problem" polar bears appears to be increasing. "Hungry bears don't just lie down they go looking for an alternate food source," says zoologist Ian Stirling at the University of Alberta in Edmonton, Canada. "In many cases this brings them into human settlements and hunting camps."

Stirling's team found that around the town of Churchill on the shores of Hudson Bay the "polar bear capital of the world" the number of bears reported as attacking humans, homes and hunting camps more than tripled between 1970 and 2005, from 20 to 90 per year. The shorter the sea ice season, the greater the reports of problem bear activity.

This increase in problem bears comes despite a 22 per cent decline in the west Hudson Bay polar bear population since the late 1980s.


Sea ice in Hudson Bay now melts three weeks earlier than it did in the 1970s. This has reduced the time polar bears have to hunt seals and build up sufficient fat reserves to survive the ice-free summer months without food, driving them to look for food in towns. Many of the problem bears were young males, which need the most energy. "Northern communities often have game stored outside their homes in natural freezers and this is a strong attractant for polar bears," says team member Andrew Derocher.

EDIT

http://www.newscientist.com/article/dn17798-polar-bears...
Printer Friendly | Permalink |  | Top

Home » Discuss » Topic Forums » Environment/Energy Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC