The biological phenomenon called a trophic cascade describes benefits that flow through an ecosystem because of an apex carnivore’s return. Wolves cause deer and elk herds to move more naturally, preventing overgrazing of streamside habitats. This permits the reestablishment of shade trees and bushes, like native aspen, cottonwood and willow, providing improved habitat for fish, beavers and songbirds. Even other large carnivores, like grizzly bears, benefit from the wolves’ return.
Posted on: Fri, 31 Oct 2014 17:21:00 +0000
Trending Topics
Recently Viewed Topics
© 2015