Because bats feed on crop pests, their disappearance led to a surge in pesticide use. Research found a rise in infant mortality in areas where the bat

Loss of bats to lethal fungus linked to 1,300 child deaths in US, study says

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2024-09-05 20:30:09

Because bats feed on crop pests, their disappearance led to a surge in pesticide use. Research found a rise in infant mortality in areas where the bats had been wiped out

In 2006, a deadly fungus started killing bat colonies across the United States. Now, an environmental economist has linked their loss to the deaths of more than 1,300 children.

The study, published in Science on Thursday, found that farmers dramatically increased pesticide use after the bat die-offs, which was in turn linked to an average infant mortality increase of nearly 8%. Unusually, the research suggests a causative link between human and bat wellbeing.

“That’s just quite rare – to get good, empirical, grounded estimates of how much value the species is providing,” said environmental economist Charles Taylor from the Harvard Kennedy School, who was not involved in the study. “Putting actual numbers to it in a credible way is tough.”

The crisis for bat colonies began in 2006, when a fungus called Pseudogymnoascus destructans hitchhiked from Europe to the US. P destructans grows on hibernating bats in winter, sprouting as white fuzz on their noses. It can extinguish a bat colony in as little as five years.