File:Grizzly bear rubbing on a tree (Northern Divide Grizzly Bear Project) (4428168686).jpg

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A grizzly bear rubbing on a tree fixed with wire to snag hair samples. A remote camera was set up to monitor hair snag locations and observe bear behavior.

Barbed wire hair snags were used to collect hair samples from grizzly bears throughout the Crown of the Continent Ecosystem as part of the (Northern Divide Grizzly Bear Project. This project used this technique in conjunction with statistical models to estimate the number of grizzly bears inhabiting the ecosystem, which includes Glacier National Park. DNA was extracted from from bear hair collected along survey routes and from systematically positioned hair snag stations.

As a result of this project, and after collecting and analyzing a staggering 34,000 hair samples, it was estimated that 765 grizzly bears make their home in the Northern Continental Divide Ecosystem.

USGS photo.

www.nrmsc.usgs.gov/research/NGSbear_monitoring.htm
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Grizzly bear rubbing on a tree (Northern Divide Grizzly Bear Project)

Author GlacierNPS

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image, originally posted to Flickr, was reviewed on 14 November 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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current07:39, 14 November 2013Thumbnail for version as of 07:39, 14 November 20131,779 × 1,191 (3.4 MB)File Upload Bot (Magnus Manske) (talk | contribs)Transferred from Flickr by User:AlbertHerring

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