Noninvasive methods for monitoring bear population trends
Fact Sheet
2010-3054
By: Katherine Kendall
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Abstract
The U.S. Geological Survey began a grizzly bear research project in 2009 in the Northern Continental Divide Ecosystem (NCDE) of northwestern Montana. This work uses hair collection and DNA analysis methods similar to those used in the 2004 Northern Divide Grizzly Bear Project. However, instead of producing a snapshot of population size, the objectives of this new work are to estimate population growth rates by collecting hair at natural bear rubs along trails, roads, and fence and power lines. This approach holds promise of providing reliable estimates of population trends in an efficient, cost-effective, and unobtrusive way.
Suggested Citation
Kendall, K., 2010, Noninvasive methods for monitoring bear population trends: U.S. Geological Survey Fact Sheet 2010-3054, 2 p., https://doi.org/10.3133/fs20103054.
ISSN: 2327-6932 (online)
ISSN: 2327-6916 (print)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Noninvasive methods for monitoring bear population trends |
| Series title | Fact Sheet |
| Series number | 2010-3054 |
| DOI | 10.3133/fs20103054 |
| Year Published | 2010 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Northern Rocky Mountain Science Center |
| Description | 2 p. |
| Time Range Start | 2009-05-15 |
| Time Range End | 2012-12-31 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |