Turn off porch light to aid caterpillars — and safeguard backyard ecosystems
ITHACA, N.Y. – Moderate levels of artificial light at night – like the fixture illuminating your backyard – bring more caterpillar predators and reduce the chance that these lepidoptera larvae grow up to become moths and serve as food for larger prey.
This ecological impact was demonstrated in a new Cornell University study published in the Proceedings of the Royal Society B: Biological Sciences.
The scientists placed more than 550 lifelike caterpillar replicas made of soft clay in a forest, setting to ascertain how the mockups were attacked and hunted by predators compared to a control group.
“We measured predation ...












