Bat Team Update

"This was an excellent season for the Minnesota Biological Survey (MBS) northern long-eared bat team. The team consists of MBS animal survey supervisor/mammalogist Gerda Nordquist, MBS animal survey specialist Melissa Boman, MBS animal survey specialist Andrew Herberg, and MBS zoologist Adam Maleski.

In total, thirty-three bats were captured using mist nets at three netting locations in southern Minnesota. Of those captured, 17 were northern long-eared bats (Myotis septentrionalis) (henceforth abbreviated MYSE). With White-nose Syndrome severely impacting Minnesota's cave hibernating bats (like MYSE), we were concerned we would have few captures this season. Yet, we were successful in deploying all nine of our temporary transmitters onto female MYSE in just three nights of netting at two sites, five at the first and four at the second. This was a record for us...considering past seasons' captures have taken upwards of ten nights at multiple sites!

Bats were then tracked each night until the transmitters naturally disengaged and dropped off, which typically took 8-12 days. Generally, the bats would move to a different tree each night- separate from other transmittered bats. However, at one site we saw all four of our transmittered bats move to the same tree on the same day! This was a first for us in our years of conducting this project...and it was an interesting observation about their roosting behavior! Other bat species captured included little brown bat (Myotis lucifugus), big brown bat (Eptesicus fuscus), eastern red bat (Lasiurus borealis) and silver haired bat (Lasionycteris noctivagans)."

-Melissa Boman, MBS

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