Western White Pine Distribution.

A) The predicted contemporary distribution of western white pine (P. moniticola) in the western United States and southwestern Canada using a plant-climate model (Rehfeldt et al. 2006). Pixel colors represent votes for western white pine occurrence. The black drawn lines represent the predicted metapopulations of western white pine based on AFLP analyses. B) The predicted 2030 distribution of western white pine using the average of two general circulation models.