Roosting Behavior of Northern Long-Eared Bats (Myotis septentrionalis) in an Urban-Adjacent Forest Fragment

نویسندگان

چکیده

Throughout the Midwest United States, agricultural and urban development have fragmented natural areas, with a disproportionate effect on forests wetlands. The resulting habitat loss, compounded spread of white-nose syndrome (WNS), has caused precipitous population declines in several forest-obligate bat species. In 2019, we discovered remnant northern long-eared (Myotis septentrionalis Trouessart) maternity colony small forest fragment adjacent to restored wetland northeastern Indiana, USA. We investigated roost selection this during summers between 2019 2021 by attaching radio transmitters bats tracking them day roosts. measured tree, plot, landscape-level characteristics for each randomly selected available tree same landscape, then compared using paired t-tests. Over 70 net nights, captured tracked 4 individuals (1 juvenile male, 1 post-lactating female, 2 lactating females) 12 different There were, average, 3.5 times more standing dead trees (snags) plots around roosts (t = −4.17, p 0.02). Bats near stretch flooded (which contained 83% roosts) dominated solar-exposed, flood-killed snags. These likely provide warm microclimates that facilitate energy retention, fetal development, milk production. By describing within insight into resources enable an endangered species persist urbanized fragments.

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ژورنال

عنوان ژورنال: Forests

سال: 2022

ISSN: ['1999-4907']

DOI: https://doi.org/10.3390/f13121972