About these ads

Climate: Bark beetles invading high-elevation forests

Whitebark pines are in imminent danger of extinction, and global warming is one of the most significant threats to the species. Photo courtesy U.S. Forest Service.

Whitebark pines are in imminent danger of extinction, and global warming is one of the most significant threats to the species. Photo courtesy U.S. Forest Service.

Researchers see threat to whitebark pines

By Summit Voice

FRISCO —Bark beetles have already killed millions of acres of mid-elevation forests across the West, and warming temperatures are enabling the tree-killing bugs to invade higher elevations, where they are attacking trees that haven’t evolved with strong defenses to repel them.

Global warming is essentially giving the insects a huge advantage, as the trees, with their long lifespans, have no chance to develop biological resistance, according to researchers from the the University of Wisconsin-Madison, who report a rising threat to the whitebark pine forests of the northern Rocky Mountains. Continue reading

About these ads
Follow

Get every new post delivered to your Inbox.

Join 7,658 other followers