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Mammals: Large Species

Grizzly bears, caribou, and wolves are examples of large mammalian species that USGS researchers study. Listed below are USGS research efforts that involve large mammalian species.

Antelope | Bears | Bison | Caribou | Elk | Horses | Manatee | Sheep | Walrus | Wolves | General Mammal Research | Wildlife Health/Mammal Diseases

Antelope

  • Assessing Impacts of Development on Pronghorn Antelope (See Big Game Species, NOROCK)

Bears (Black Bear, Brown Bear, Grizzly, Polar Bear)                

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Bison                                                                                                   

Caribou

Elk

Horses                                                                                    

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Manatee

Sheep

Walrus                                                                                   

Wolves

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General Mammal Research

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Wildlife Health/Mammal Diseases                                   

 

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Research Highlights

 

Does a bear shimmy in the woods?

American black bear     (Ursus americanus)

American black bear (Ursus americanus).
Photo credit: John Mosesso, NBII Digital Image Library

It has been estimated that 765 grizzly bears reside in northwest Montana. USGS biologist Katherine Kendall at Northern Rocky Mountain Science Center (NOROCK) has been actively photographing and recording grizzly bears and black bears with remote cameras. Using hair snag samples collected from barbed wire hair traps and bear rub trees for genetic analysis. This research is being used to determine the size and distribution of bear populations in northwestern Montana.

Remote sensors are being used to understand more about bear use of naturally-occurring bear rubs, bear marking behavior, and effects of putting barbed wire on bear rubs to facilitate hair collection, according to the objectives set out by USGS researcher Katherine Kendall.  Read the  USGS News Release by USGS scientists Kate Kendall and Dave Ozman, New Study Estimates 765 Grizzly Bears Reside in Northwest Montana (Sept. 16, 2008).

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In the Spotlight

http://biology.usgs.gov/wter/images/ipy.jpg The USGS International Polar Year Home Page - During the International Polar Year (2007-2008), USGS will be conducting research at both poles, collecting information on polar conditions and studying their interactions with and influence on oceans, the atmosphere, land masses and ecosystems to understand current and forecast future global climate. Check out the USGS International Polar Year web site.

 

 

 

More on this topic:

polar bear

Polar Bear (Ursus maritimus)

grizzly bear

Grizzly Bear (Ursus arctos)

tagged walrus

Walrus (Odobenus rosmarus)

Wild Horses

Wild Horses (Equus caballus)

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