... of climate change are already apparent in some areas. In northern Alaska, for example, there has been a northward expansion of shrub tundra at the expense of sedge tundra, a change that scientists ... Northwestern and Intermountain rangelands due to climate change warrant the need for increased flexibility in local and regional management plans and actions as well as more options for ranchers and land ... Hannah, et al. (2007), looked at projected range changes for a number of plant and animal species, combined with an assessment of existing and potential suitable habitat areas (based on land...