
Global warming is causing moths in the tropics to shrink
Oct. 11 (UPI) -- As temperatures rise, vulnerable species, including insects like moths, move to higher elevations. While chasing moth species up the mountains of Borneo's national parks, scientists from the University of York realized the insects were also getting smaller. Researchers turned to earlier surveys to confirm what their eyes were telling them. Moth surveys conducted on Borneo's Mount Kinabalu between 1965 and 2007 revealed significant reduction the length of moth wings. The analysis was detailed this week in the journal Nature Communications. Scientists determined that the reduction in wing sizes was explained by the shrinking of moth bodies and the arrival of smaller species at higher and higher elevations. If the changes in body size continue, entire ecosystems could be af...