Pre-Adaptation of Cheatgrass for the Great Basin

​Cheatgrass has been a successful invader of the Great Basin largely because of a series of pre-existing conditions. These include: 1) evolution to sagebrush ecosystems in North America without highly competitive annuals, 2) evolution of cheatgrass in a similar potential environment on a different continent where agriculture had existed for millennia, 3) introduction of cattle […]