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Tricolored Bat: Listed as Endangered

  • Published
    15th Sep, 2022

US officials have announced recently to list the tricoloured bat as endangered.

  • A fungal disease that attacks while bats are hibernating has brought the tricolored bat to the brink of extinction.
  • Tricolored bats live in 39 states east of the Rocky Mountains, as well as parts of Canada, Mexico, Guatemala, Honduras, Belize and Nicaragua.
  • But white-nose syndrome— caused by a fungus that develops on cave-dwelling bats during hibernation — is decimating the bat's population in North America at unprecedented rates.
  • White-nose syndrome has killed off millions of bats across the continent, wiping out 90% to 100% of colonies in some sites.

About the species:

  • The tricolored bat, formerly known as the eastern pipistrelle, is one of the smallest bats in North America.
  • Tricolored bats are a hibernating species and have the longest hibernation period of any bat species in their range.
  • When not hunkering down for the winter, they may be found in a wide variety of habitats to roost and forage.  
  • When feeding, these bats can catch insects in the air as often as every 2 seconds and increase their body mass by 25 percent in only half an hour.


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