Estimating sustainability of annual grizzly bear mortalities

Publication Type:

Book Chapter

Authors:

Haroldson, Mark A.; Frey, Kevin

Source:

U. S. Geological Survey, p.27-31 (2014)

Call Number:

B14HAR01IDUS

URL:

http://nrmsc.usgs.gov/files/norock/products/IGBST/2013report.pdf

Keywords:

Grizzy bear, SWAP, Ursus arctos

Abstract:

This chapter presents the Interagency Grizzly Bear Study Team's (IGBST) evaluation of the sustainability of annual grizzly bear mortalities occurring within the Conservation Management Area boundary of the Greater Yellowstone Ecosystem (GYE). Twenty-nine known and probable moralities occurred with the GYE during 2013; 23 were attributable to humans. Tables and a map are provided. Four of the 28 known and probable losses remain under investigation by the USFWS. There were no documented human-caused losses of dependent young during 2013. Using previous criteria specified under the Revised Demographic Criteria (USFWS 2007) and methodology present by the IGBST in 2005 and 2006, none of the mortality limits for the 3 population segments (i.e., dependent young from human causes, independent females, or independent males) were exceeded in 2013.

Notes:

ELECTRONIC FILE - Zoology

Citation, Ecology style: Haroldson, M. A., and K. Frey. 2014. Estimating sustainability of annual grizzly bear mortalities. Pages 27-31 in F. T. van Manen, M. A. Haroldson, K. West, and S. C. Soileau, editors. Yellowstone grizzly bear investigations: annual report of the Interagency Grizzly Bear Study Team 2013. U. S. Department of the Interior, U. S. Geological Survey, Bozeman, MT.

Please note: the copy available at http://nrmsc.usgs.gov/files/norock/products/IGBST/2013report.pdf has page numbering problems, page 29 occurring right before this particular chapter, whose numbers are different by 1 (26-30) compared with the copy we have on hand.

SWAP (2/19/2016) citation: Haroldson MA, Frey K. 2014. Estimating sustainability of annual grizzly bear mortalities. In: van Manen FT, Haroldson MA, West K, et al., editors. Yellowstone grizzly bear investigations: annual report of the Interagency Grizzly Bear Study Team 2013. Bozeman (MT): US Geological Survey. p. 27–31. [accessed 2015 Jun 1]. http://nrmsc.usgs.gov/files/norock/products/IGBST/2013report.pdf.