Home Science Bats of smaller size offer a potential solution for fungus endangering the survival of a whole species.

Bats of smaller size offer a potential solution for fungus endangering the survival of a whole species.

Alyssa Bennett, a small mammals biologist for the Vermont Department of Fish and Wildlife, was photographed holding a dead bat in a Dorset cave on May 2, 2023. The bat population has been greatly impacted by the fungus causing white nose syndrome, resulting in millions of bat deaths across North America. However, researchers have noted good news for the disease. More bats that hibernate at the largest bat cave in New England, located in Vermont, are surviving the disease and passing protective traits onto their young. The little brown bats, survivors of the deadly fungus that decimated their population, went into hibernation last fall, and are now slowly waking up and making their first flights. At least some species of bats are showing signs of adapting to the fungus that has killed millions of their brethren across North America. Scientists estimate that between 70,000 and 90,000 bats now hibernate in the Dorset cave, the largest concentration in New England, but their numbers have dwindled greatly since the 1960s. Bats play a crucial role in U.S. agriculture by eating crop-destroying insects. The fungus has been found in 38 states so far, resulting in mortalities for 81 out of 154 known bat species in the United States, Canada and Mexico. However, researchers are seeing signs of recovery in some areas, particularly for little brown bats that hibernate at colder temperatures.

 

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