The world’s frogs, salamanders, newts and other amphibians remain in serious trouble.
A new global assessment has found that 41% of amphibian species that scientists have studied are threatened with extinction, meaning they are either vulnerable, endangered or critically endangered. That’s up from 39% reported in the last assessment, in 2004.
Amphibians are especially vulnerable animals. They have distinct life stages that each often require separate habitats, so they can be disrupted by changes in either aquatic or land environments, said University of Texas biologist Michael Ryan, who was not involved in the study. For example, frogs are usually nocturnal. If it’s too hot, they won’t come out even at night because they would lose too much water through their skin, said Patricia Burrowes, a study co-author and researcher at the National Museum of Natural Sciences in Madrid. But remaining in sheltered resting places limits frogs’ ability to eat and to breed., and 2023 is on track to be the 2nd hottest globally, after 2016.
“We have a much better understanding of some risks,” said Guayasamin, who was not involved in the report.
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