[PCA] NEWS: In a Warmer Yellowstone Park, a Shifting Environmental Balance
Olivia Kwong
plant at plantconservation.org
Tue Mar 18 09:38:14 CDT 2008
http://www.nytimes.com/2008/03/18/science/18griz.html
In a Warmer Yellowstone Park, a Shifting Environmental Balance
By JIM ROBBINS
Published: March 18, 2008
YELLOWSTONE NATIONAL PARK, Wyo. -- The grassy sweep of the Lamar Valley in
the northeastern corner of this park is famous for its wildlife,
especially its vast herds of elk and bison and the wolves that hunt them.
But while walking across the Lamar last fall, Robert L. Crabtree, chief
scientist with the Yellowstone Ecological Research Center in Bozeman,
Mont., pointed out a cascade of ecological changes under way. The number
of grizzly bears and gophers in the valley has increased, Dr. Crabtree
said, an increase supported by the spread of an invasive plant from the
Mediterranean that a warming climate benefits.
See the link above for the full article text.
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