19 Mar '12, 9pm

Green Blog: Double Trouble From Mountain Pine Beetles?

Jeffry B. Mitton The mountain pine beetle chomps away on a tree in the southern Rockies. The evolution of mountain pine beetles to produce two generations of beetle per year instead of one has probably been a factor in the unparalleled damage that insects have caused in pine forests in the western United States and Canada over the last decade, according to a new study . The findings, published online in The American Naturalist , may explain in part how the scale of beetle-killed forest in the West became so vast. The number of acres killed in the last decade or so is 10 times that of any previous epidemic recorded, and it’s not over. The damage stretches from California across the prairies to the east, and from New Mexico to northern Canada. Jeffry B. Mitton , a professor of ecology at the University of Colorado at Boulder and the lead author of the study, and a graduate s...

Full article: http://green.blogs.nytimes.com/2012/03/19/double-trouble-...

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Double Trouble From Mountain Pine Beetles?: A n...

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