Shrubs are projected to move upslope and expand into the alpine tundra with a warming climate in the Kluane region of Yukon. Shrub expansion will create habitat for some species, such as moose, but cause habitat loss for species such as hoary marmot, collared pika and ptarmigan. Parks Canada uses alpine vegetation plots to monitor shrub extent in Kluane. Two sub-measures are observed: 1) percent cover of shrubs and 2) height of tallest shrub. Field sampling is done in late July/early August every 5 years