Male Insect Fertility Plummets After Heat Waves – By Karen Weintraub – The New York Times

By Karen Weintraub
Nov. 13, 2018,     comments 3
For years, insect populations have been dropping worldwide without a clear explanation. A new paper suggests male infertility is at least one factor behind that decline, as warmer-than-usual temperatures take a disproportionate toll on males of some insect species.

After a lab-simulated heat wave, researchers from England’s University of East Anglia found that male flour beetles produced vastly less sperm. But they also found that the damage wasn’t confined to the males. Sperm inside a female’s reproductive tract became less viable and the sons of the males that endured the hotter temperature became less fertile, too.

Matt Gage, an evolutionary ecologist who led the work published Tuesday in Nature Communications, said he was surprised by the findings, and by how quickly male fertility plummeted.

via Male Insect Fertility Plummets After Heat Waves – The New York Times

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About David Lindsay Jr

David Lindsay is the author of "The Tay Son Rebellion, Historical Fiction of Eighteenth- Century Vietnam," that covers a bloody civil war from 1770 to 1802. It was published by Footmad and Cherry Blossom Press on September 11, 2017. Find more about it at TheTaySonRebellion.com, also known as, DavidLindsayJr.com.
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