A study published today suggests that overgrazing and other factors increase the severity of cheatgrass invasion in sagebrush steppe, one of North America's most endangered ecosystems. Researchers said one of the most effective restoration approaches would be to minimize the cumulative impact of grazing, by better managing the timing, frequency of grazing and number of animals.
Fuente : http://www.eurekalert.org/pub_releases/2013-05/osu...
Fuente : http://www.eurekalert.org/pub_releases/2013-05/osu...