Barbastelles in a Production Landscape: Where Do They Roost? ...

• Main Authors: Apoznański, Grzegorz, Kokurewicz, Tomasz S., Petterson, Stefan, Sánchez-Navarro, Sonia, Górska, Monika, Rydell, Jens
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Mammalia; Chiroptera; Chordata; Animalia; bats; bat; Barbastella barbastellus
• Online Access: https://dx.doi.org/10.5281/zenodo.13458554; https://zenodo.org/doi/10.5281/zenodo.13458554

(Uploaded by Plazi for the Bat Literature Project) Extensive areas of old forests have declined all over the temperate regions of Europe mainly due to extensive forestry. This is likely to have negative impact on bats that roost in trees, such as the western barbastelle Barbastella barbastellus. We investigated its selection of summer roosts in a commercially used landscape in southern Sweden. We captured and radio-tracked 14 bats and found 17 occupied roosts. Nine of the roosts, including two used by a maternity colony (ca. 30 females), were located between overlapping boards on the gables of barns. The remaining eight roosts, all used by single individuals, were under lose bark on thin trees (DBH = 0.2−0.35 m). All recorded roosts had entrances pointing downwards, were adjacent to deciduous trees providing protective darkness, and were in areas without artificial lighting. In the barns, the bats avoided the northern aspect, which is the lightest (sun sets in the NW and rises in the NE). Roost temperatures ...