Assisted migration is the movement of populations or species by humans from one territory to another in response to climate change. This is the definition offered in a nontechnical document published
Biomes of North America - CURRENT (Rehfeldt et al. 2012)
Biomes of North America - PROJECTED 2060 (Rehfeldt et al. 2012)
Three types of forestry assisted migration
Native bark beetles are now able to kill even the highest elevation trees (Engelmann spruce) in the national forests of Colorado. Photo June 2014, Wolf Creek Pass.
Emerald ash borer
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The emerald ash borer, also known by the abbreviation EAB, is a green buprestid or jewel beetle native to north-eastern Asia that feeds on ash species. Females lay eggs in bark crevices on ash trees,
Larva
Pupa removed from its pupal chamber
Adults exit the tree from D-shaped holes.