The Northern Long-eared Bat

The Northern Long-eared Bat (Myotis septentrionalis) (NLEB) is one of the species of bats most impacted by the disease White-nose Syndrome (WNS).

Due to severe population declines caused by WNS, the U.S. Fish & Wildlife Service (USFWS) listed the Northern Long-eared Bat as a Threatened species under the Endangered Species Act (ESA, 50 CFR 17.11) on April 2, 2015. NLEB is also listed as Endangered under the Massachusetts Endangered Species Act (MESA, M.G.L. c. 131 A).   

Northern Long-eared Bat, Endangered. Photo by USFWS

 

Prohibited tree removal

Projects that result in tree removal activities shall comply with the 4(d) rule under the ESA (effective 2/16/2016), which states:

“Incidental take resulting from tree removal is prohibited if: 1) Occurs within 0.25 mile radius of known northern long-eared bat hibernacula or 2) cuts or destroys known occupied maternity roost trees, or any other trees within a 150-foot radius from the known maternity tree during the pup season (June 1 through July 31).”

For more information on the Northern Long Eared Bat and the 4(d) rule, please visit: http://www.fws.gov/midwest/endangered/mammals/nleb/. Please note that if your proposed project or activity is also within Priority Habitat as codified under the MESA, a separate MESA review will be required.

To assist project proponents with the review processes described above, we are providing the following map for known locations of winter hibernacula and maternity roost trees.  Please contact USFWS for additional information on project compliance with the ESA for the Northern Long-eared Bat.

A full screen map is also available and contains additional information, including the type of habitat (hibernacula or maternity roost tree) and whether the location is mapped as Priority Habitat.

Please note this map is updated as new information is received. Last Updated November 30, 2016.

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