Prairie dogs, once abundant in the Rocky Mountains and Great Plains, have been decimated in recent decades by plague - a virulent bacterial disease spread by fleas.
Ecology
Aug 3, 2010
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(PhysOrg.com) -- To the untrained eye, University of Colorado at Boulder Research Associate Craig Lee's recent discovery of a 10,000-year-old wooden hunting weapon might look like a small branch that blew off a tree in a ...
Archaeology
Jun 29, 2010
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0
Travel from the tropics to the poles, and you'll notice that the diversity of mammals declines with distance from the equator. Move from lowland to mountains, and you'll see diversity increase as the landscape becomes more ...
Evolution
May 5, 2010
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0
Paleoindian groups* occupied North America throughout the Younger Dryas interval, which saw a rapid return to glacial conditions approximately 11,000 years ago. Until now, it has been assumed that cooling temperatures and ...
Archaeology
Apr 12, 2010
1
0
(AP) -- Glacier National Park has lost two more of its namesake moving icefields to climate change, which is shrinking the rivers of ice until they grind to a halt, a government researcher said Wednesday.
Earth Sciences
Apr 7, 2010
27
1
(PhysOrg.com) -- The face of high-elevation evergreen forests in Western Canada could be drastically altered as a combination of climate change, human and natural disturbances is making spruce and pine forests in the Rocky ...
Ecology
Feb 22, 2010
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0
Ask biologists how many species live in a pond, a grassland, a mountain range or on the entire planet, and the answers get increasingly vague. Hence the wide range of estimates for the planet's biodiversity, predicted to ...
Ecology
Jul 9, 2009
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0
The declining mountain caribou populations of Canada's southern Rockies are a more distinct breed than scientists previously believed, according to a new study by University of Calgary researchers that is shedding light on ...
Jan 28, 2009
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0
The National Parks Service and U.S. Fish & Wildlife Service filed a decision April 25 outlining a plan to capture three to seven grizzlies from other ecosystems in the Rocky Mountains or interior British Columbia and release ...
Plants & Animals
Apr 26, 2024
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19
A new set of maps that document the movements of ungulates was published today in the fourth volume of the Ungulate Migrations of the Western United States. The maps in this collaborative U.S. Geological Survey report series ...
Plants & Animals
Apr 11, 2024
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