Home News and Features Northern Long-eared Bat Is Now Endangered 

Northern Long-eared Bat Is Now Endangered 

A northern long-eared bat being handled by researchers during population monitoring fieldwork. Photo courtesy of Morgan Ingalls.
The U.S. Fish and Wildlife Service’s reclassification of the northern long-eared bat from threatened to endangered status came into effect Friday, March 31, 2023. In Vermont, the northern-long eared bat received a state endangered status in 2011 because of a rapid and drastic decline in numbers caused by the deadly fungal disease white-nose syndrome. It received federal threatened status in 2015 after the disease had spread throughout the Northeast but not the entire range of the species.

Following the expansion of white-nose syndrome across the United States and Canada, the northern long-eared bat has experienced similarly dramatic population declines throughout most of its range. In Vermont, the numbers of this once-common species of mature forest habitats have declined by 98% in the underground hibernation sites where it overwinters. 

In anticipation of the reclassification to federal endangered status coming into effect, the USFWS released a planning tool and interim guidance earlier this month. These resources cover potential impacts to development, infrastructure, and land management projects in the range of the northern long-eared bat that require federal approval, have received federal funding, or are carried out by a federal agency starting in April 2023. Non-federal projects will also be able to evaluate potential impacts to the northern long-eared bat with the USFWS planning tool.

The Vermont Fish and Wildlife Department and partners have been proactive in tracking the state’s northern long-eared bat population and implementing protections like the 2011 state endangered designation. Because of this advance effort, the reclassification to federal endangered status is not expected to have major impacts on Vermont landowners, land managers, or developers.

“The federal reclassification will mobilize additional resources for northern long-eared bat conservation and recovery,” said Vermont Fish and Wildlife’s mammal biologist Alyssa Bennett. “Vermonters have already done substantial conservation work for this species, placing us ahead of the curve. We are in a good position to protect high-quality northern long-eared bat habitat where surviving bats occur and to manage our forests with this and other wildlife species in mind.”