Glow-Worms Can’t Find Their Spark Under Harsh Light Pollution
“The ability of male glow-worms to find female glow-worms is severely affected by artificial white light,” said Jeremy Niven, a zoologist at the University of Sussex and a co-author of the research, in an email to Gizmodo.“This is a problem for glow-worms because their mating relies on females producing a bright glow from their abdomen, a form of bioluminescence,” Niven added. “If the males can’t find the females’ glow then they can’t reproduce and the population may suffer.
Though other studies have indicated glow-worms are disappearing from the meadows and heaths they inhabit, Niven said it’s not possible to say whether that’s due to artificial light versus other threats, like climate change and habitat loss.That’s not to say the average person can’t help. “Perhaps the simplest thing the average person can do is to turn off garden lights and to generally reduce outdoor lighting, and close curtains in rooms where indoor lighting is being used,” Niven said.
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