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Radio-tracking Two Perimyotis subflavus (Tricolored Bat) During Spring Emergence in Wisconsin

Heather M. Kaarakka1,*, Katie L. Luukkonen2, and J. Paul White1

1Wisconsin Department of Natural Resources, Madison, WI 53707. 2Wyoming Game and Fish Department, Laramie, WY 82070. *Corresponding author.

Northeastern Naturalist, Volume 31, Issue 4 (2024): 488–497

First published early online: 31 December 2024

Abstract
The connections between winter and summer habitat for hibernating bats are poorly understood, yet biologists need information on seasonal habitat requirements to aid bats as they recover from white-nose syndrome. We captured and radio-tagged 2 female Perimyotis subflavus (Tricolored Bat) as they emerged from a cave in Pierce County, WI. We lost the signal from one bat shortly after release but successfully radio-tracked the other bat as she flew 51 km to a roost tree on the St. Croix River. The bat made her full spring migration in 1 night on 5 May 2017 and on subsequent nights foraged on the St. Croix River. This record represents only the second published spring emergence tracking attempt for this species and adds to the growing knowledge base of seasonal habitat requirements for understudied bats.

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