Climate Change News: Study confirms beetles exploit warm winters to expand range

Alex Wierbinski's picture

By Alex Wierbinski - Posted on 21 June 2018


Climate Change News


Study confirms beetles exploit warm winters to expand range,
DOE/Los Alamos National Laboratory, June 19, 2018.

"...confirms that increasing minimum winter temperatures allow beetles to expand their range but reveals that overcrowding can put the brakes on population growth."

"It has long been predicted that warming winters will allow range expansion. This is the first large dataset that demonstrates that warmer winter temperatures are likely allowing mountain pine beetles to establish outside of their native range."


"Massive outbreaks in recent decades have consumed large swaths of Western forests, where 100,000 trees may fall every day. Some regions have lost 90 percent of the conifers. The outbreaks, mounting in size and severity, are now infesting new tree species and expanding beyond the Continental Divide across North America and into boreal forests."

"...beetle populations are exploding thanks to warming temperatures and longer reproductive seasons."


"The study focused on Alberta, recently invaded by beetles from British Columbia, where they have lost the majority of the pine trees."


More Proof

Tree & Forest News: Dead Forests & High Sierra Tree Mortality, The Water of Millions of Dead Trees


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New Theory of Beetle Beauty & Utility: From an Obvious Threat Warning to a form of Camouflage



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