Seasonal Activity Patterns of Northern Long-eared Bats on the Coastal Mid-Atlantic

dc.contributor.authorDe La Cruz, Jesse L.en
dc.contributor.authorKalen, Nicholas J.en
dc.contributor.authorBarr, Elaine L.en
dc.contributor.authorThorne, Emily D.en
dc.contributor.authorSilvis, Alexanderen
dc.contributor.authorReynolds, Richard J.en
dc.contributor.authorFord, W. Marken
dc.coverage.countryUnited Statesen
dc.description.abstractConservation of bats declining from white-nose syndrome (WNS) impacts requires an understanding of both temporal and landscape-level habitat relationships. Traditionally, much of the research on bat ecology has focused on behavior of summer maternity colonies within species’ distribution cores, including that of the endangered northern long-eared bat (Myotis septentrionalis). To further our knowledge of this species, we evaluated multi-season activity patterns in eastern North Carolina and Virginia, including areas where populations were recently discovered. We used passive acoustic monitoring to assess relative and probable activity of northern long-eared bats from October 2016 to August 2021. Northern long-eared bat relative activity was greatest in areas containing greater proportions of woody wetlands and upland pine-dominated evergreen forests. However, the likelihood of recording northern long-eared bats was associated with smaller proportions of woody wetlands and open water resources. Furthermore, we observed a higher probability of recording northern long-eared bats during non-winter seasons. Probable activity was greatest at temperatures be- tween 10 and 25 C, potentially highlighting an optimal thermoneutral zone for the species regionally. Relative activity of northern long-eared bats on the Coastal Plain of Virginia and North Carolina was primarily driven by cover features, whereas probable activity was driven by a combination of cover features, seasonality, and temperature. Therefore, acoustical surveys for this species may be most effective when targeting woody wetlands adjacent to upland forests, particularly upland pine-dominated evergreen stands, during moderate temperatures of non-winter seasons (1 April–15 November). Moreover, conservation of a diverse mosaic of woody wetlands juxtaposed by upland forests may promote both roosting and overwintering habitat, thereby enhancing overwintering survival, maternity colony establishment, and ultimately, successful reproduction of northern long-eared bats.en
dc.description.versionPublished versionen
dc.format.extentp. 185-195en
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.titleSeasonal Activity Patterns of Northern Long-eared Bats on the Coastal Mid-Atlanticen
dc.title.serialJournal of the Southeastern Association of Fish and Wildlife Agenciesen
dc.typeArticle - Refereeden


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