Check out this post on the ecosystem dynamics of Yellowstone National Park nearly 20 years after the re-intorduction of wolves:
http://earlycareerecologists.wordpress.com/2013/02/06/yellowstone-wolves-elk-willows-and- beaver/
Check out this post on the ecosystem dynamics of Yellowstone National Park nearly 20 years after the re-intorduction of wolves:
http://earlycareerecologists.wordpress.com/2013/02/06/yellowstone-wolves-elk-willows-and- beaver/