Sunday, 15 July 2018

Climate change linked to potential population decline in bees


Study finds that warmer temperatures push bees to their physiological limits, may drive local extinction

Date:  June 28, 2018
Source:  Northwestern University

Summary:
A new study from Northwestern University and the Chicago Botanic Garden has found that climate change may drive local extinction of mason bees in Arizona and other naturally warm climates.

In a two-year, in situ field experiment that altered the temperature of the bees' nests to simulate a warmer, future climate, 35 percent of bees died in the first year and 70 percent died in the second year. This is compared to a 1-2 percent mortality rate in the control group.

"The projected temperatures appear to be pushing this species up against its physiological limits," said Northwestern's Paul CaraDonna, who led the research. "This is evidence that we might see local extinction in the warmer parts of this species' range, which is pretty sobering."



No comments:

Post a comment

You only need to enter your comment once! Comments will appear once they have been moderated. This is so as to stop the would-be comedian who has been spamming the comments here with inane and often offensive remarks. You know who you are!

Related Posts with Thumbnails

ShareThis