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Habitat Selection By The Northern Long-Eared Myotis (Myotis Septentrionalis) In The Midwestern United States: Life In A Shredded Farmscape, Jeremy A. White, Patricia Freeman, Cliff A. Lemen
Habitat Selection By The Northern Long-Eared Myotis (Myotis Septentrionalis) In The Midwestern United States: Life In A Shredded Farmscape, Jeremy A. White, Patricia Freeman, Cliff A. Lemen
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Populations of the Northern Long-Eared Myotis (Myotis septentrionalis) have declined dramatically in recent years in eastern North America due to white-nose syndrome. Although M. septentrionalis was once common in parts of eastern North America, few studies have examined habitat selection of this species in an agricultural landscape. We used acoustical methods to quantify bat activity and construct a habitat model of M. septentrionalis in an intensively farmed area in the Midwestern United States, where mortality from white-nose syndrome has not yet been observed. Our study confirms that M. septentrionalis prefers forest and avoids open habitats in this agricultural …
Acoustic Evidence Of Bats Using Rock Crevices In Winter: A Call For More Research On Winter Roosts In North America, Cliff A. Lemen, Patricia W. Freeman, Jeremy A. White
Acoustic Evidence Of Bats Using Rock Crevices In Winter: A Call For More Research On Winter Roosts In North America, Cliff A. Lemen, Patricia W. Freeman, Jeremy A. White
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
The Northern Long-eared Myotis (Myotis septentrionalis) is known to hibernate in mines and caves, often using cracks within these hibernacula as roost sites. We hypothesized that M. septentrionalis might use deep cracks in rock outcrops for hibernation as well. To test this hypothesis, we placed acoustical bat detectors near rock outcrops away from any known mines or caves during winter in Nebraska. We documented calls of M. septentrionalis as well as Perimyotis subflavus and Eptesicus fuscus in December near rock outcrops, which suggests that individuals of all three species were hibernating in rock crevices in winter. Of the …
Winter Activity Of Myotis Septentrionalis: Role Of Temperature In Controlling Emergence From A Hibernaculum, Cliff A. Lemen, Patricia Freeman, Jeremy A. White
Winter Activity Of Myotis Septentrionalis: Role Of Temperature In Controlling Emergence From A Hibernaculum, Cliff A. Lemen, Patricia Freeman, Jeremy A. White
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
We acoustically monitored a small mine in southeastern Nebraska known to be a hibernaculum for the Northern Long-eared Myotis (Myotis septentrionalis) for two winters (2014-2015 and 2015-2016). Some M. septentrionalis emerged on nights with mild temperatures throughout both winters. There was an 89% probability of detecting this species when temperature at sunset was >5°C. Our results indicated that acoustical surveys outside mines or caves in winter, particularly on nights with mild temperatures, are an effective method of identifying hibernacula of M. septentrionalis and potentially other species without disturbing individuals by entering the hibernaculum or by netting individuals as …
Winter Activity Of Bats In Southeastern Nebraska: An Acoustic Study, Jeremy A. White, Brett R. Andersen, Hans W. Otto, Cliff A. Lemen, Patricia W. Freeman
Winter Activity Of Bats In Southeastern Nebraska: An Acoustic Study, Jeremy A. White, Brett R. Andersen, Hans W. Otto, Cliff A. Lemen, Patricia W. Freeman
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Many North American bats are active outside hibernacula in winter, but no information on winter activity has been reported for Nebraska. We recorded activity of bats during two winters (December-February 2012-2013 and 2013-2014) at one location in southeastern Nebraska with an acoustic detector. Bats were active throughout both winters and temperature at sunset was a good predictor of bat activity. Red bats (Lasiurus borealis) were active at our site in early December but were not recorded later in winter. We suspect these individuals were late migrants to more southern wintering sites. Big brown bats (Eptesicus fuscus) …