The geographic extent of the spruce/fir forest ecosystem is limited to a narrow range of environmental conditions.

Submitted by dshannon on

Suitable habitat for this ecosystem is already limited to the highest elevations in the Central Appalachians and the range of this ecosystem may contract as climate change forces species upward. This ecosystem is dependent on very moist conditions, and persists only in the coolest, wettest, and highest elevation sites in mountainous sections.