The USFWS recently proposed the uplisting of the Northern long-eared bat (Myotis septentrionalis) from a threatened to an endangered species. The Northern long-eared bat is in the genus Myotis, identifiable by its small size and long ears. It can be found in forested environments across the northeastern United States and overwintering in caves or mines. This species was first listed as threatened under the Endangered Species Act in 2015.
Update on the Second Year of CWF’s Northern Long-eared Bat Study
by Lindsay McNamara, Communications Manager
Female (right) and male (left) eastern red bats after being removed from the same net. Photo by MacKenzie Hall.
In early June, CWF, in partnership with NJ Division of Fish and Wildlife, began the second year of the Northern long-eared bat mist netting and radio telemetry study. The team will be focusing efforts in Southern and Coastal New Jersey this year. The goal of the mist netting and radio telemetry project to learn more about the summer distribution and habitat selection of the federally listed Northern long-eared bat; an important project that can shed light on a species we know all too little about.
To date, the team has completed its second week of mist netting. So far, our team has caught 6 eastern red bats, 3 big brown bats and accidentally caught 2 flying squirrels in two different sites in southern New Jersey. Though a myotis bat has not been caught yet, the team did get acoustic detection of a tricolored bat (Perimyotis subflavus) foraging near the net site in Colliers Mills Wildlife Management Area in Jackson, New Jersey!
Flying squirrel being removed from a mist net. Photo by Stephanie Feigin.
Stay tuned for more updates as the season progresses!
An Update on CWF’s Northern long-eared Bat Statewide Mist Netting Surveys
by Stephanie Feigin, Wildlife Ecologist
Female Northern long eared bat (c) Ethan Gilardi
White-nose Syndrome (WNS), a fungal disease, has devastated bat populations across the country. Over six million bats have been killed by the disease, which has spread to over 25 states and five Canadian provinces. The Northern long-eared bat is one of the species most affected by WNS, suffering from an overwhelming 99% reduction in numbers in WNS-affected areas.
Stephanie Feigin checks wing of a Northern long-eared bat for signs of white nose syndrome scarring. (c) Ethan Gilardi
This summer, CWF Wildlife Ecologist Stephanie Feigin teamed up with NJDEP Division of Fish and Wildlife and Rutgers University to conduct a statewide mist netting and radio telemetry project to learn more about the summer distribution and habitat selection of Northern long-eared bats; an important project that can shed light on a species we know all too little about.
Mist-netting surveys began the week of June 1 and continued through the beginning of August. Survey sites included five state parks and Wildlife Management Areas across the state:
Sparta Mountain Wildlife Management Area
Rockaway River Wildlife Management Area
Washington Crossing State Park/Alexauken Creek Wildlife Management Area
Brendan Byrne State Forest
Wharton State Forest
The team, directed by Feigin, conducted a total of 19 netting nights and 10 tracking days, leading to a total of 63 bats caught, four of which were Northern long-eared bats. All four of the Northern long-eared bats received radio transmitters and were tracked everyday until the transmitter fell off.
Female Northern long-eared bat with transmitter attached to her back. (c) Stephanie Feigin
After a long night of netting (5pm-2am) the team would set out the next day to track the bat caught the night before. This, however, was not an easy task. The maximum distance the antenna can receive a signal from the transmitter is ¾ of a mile (in perfect conditions). Though tough, the team was able to track the bats to five different roost sites including under the cedar siding of two homes, a narrow four foot stump, a large standing dead pitch pine, and another pitch pine in a recently burned forested area.
The mist netting and tracking study allowed us to collect important data on Northern long-eared bat populations throughout New Jersey. The data collected on habitat requirements and roost locations will help guide our conservation decisions. Ultimately, the study will allow us to better protect the remaining population of Northern-long eared bats in the Garden State.
Amanda Bevan, Rutgers University graduate student, scans area with ATS scanning receiver and Yagi 3-element antenna for a signal from the transmitter (c) Stephanie Feigin
This work was made possible with the support from the Franklin Parker Conservation Grants, EarthColor, and the Conserve Wildlife Matching Grant Program. Thank you to our supporters!
Remember back in late November when we wrote a blogencouraging our supporters to help the Northern Long-Eared Bat become listed as an Endangered Species? Thanks to those of you who submitted comments to the U.S. Fish and Wildlife Service, it was announced today that the Northern Long-Eared Bat will be listed as threatened and protected under the Endangered Species Act.
The U.S. Fish and Wildlife Service has cited declines caused by White-Nose Syndrome as well as continued spread of the disease, as the primary threat to the species. Under the protections of the Endangered Species Act, the Northern Long-Eared Bat now has increased priority for funds, grants, and recovery opportunities.
Also announced today, the U.S. Fish and Wildlife Service issued an interim 4(d) rule that will provide maximum protection to the Northern Long-Eared Bat in areas where their populations have drastically declined due to White-Nose Syndrome, but will limit regulatory burden on the public in parts of the country where the bat species is not affected by the disease and the populations are stable. The U.S. Fish and Wildlife Service invites the public to comment on this interim rule until July 1, 2015.
How Can You Help Protect Northern Long-Eared Bats?
Do Not Disturb Hibernating Bats
Leave Dead and Dying Trees Standing: Where possible and not a safety hazard, leave dead or dying trees on your property. Northern long-eared bats and many other animals use these trees.
Install a Bat Box: Dead and dying trees are usually not left standing, so trees suitable for roosting may be in short supply and bat boxes can provide additional roost sites.
The U.S. Fish and Wildlife Service has reopened the public comment period on a proposal to list the northern long-eared bat as endangered under the Endangered Species Act (ESA). Comments will be accepted through Thursday, December 18, 2014.
The public is invited to submit comments one of two ways:
(2) By hard copy: Submit by U.S. mail or hand-delivery to: Public Comments Processing, Attn: FWS–R5–ES–2011–0024; Division of Policy and Directives Management; U.S. Fish and Wildlife Service, MS: BPHC; 5275 Leesburg Pike, Falls Church, VA 22041-3803.
The Northern Long Eared Bat, like many other bat species in the United States, is in danger of extinction due to White-Nose Syndrome, impacts to hibernacula, summer habitat loss and wind farm operation. Listing a species as endangered, under the protections of the Act, increases the priority of the species for funds, grants, and recovery opportunities.
Leave Dead and Dying Trees Standing: Where possible and not a safety hazard, leave dead or dying trees on your property. Northern long-eared bats and many other animals use these trees.
Install a Bat Box: Dead and dying trees are usually not left standing, so trees suitable for roosting may be in short supply and bat boxes can provide additional roost sites.
