Study

Actions

This study is summarised as evidence for the following.

Action Category

Avoid illumination of key bat habitats

Action Link
Bat Conservation
  1. Avoid illumination of key bat habitats

    A replicated, randomized, before-and-after study in 2015 of four cattle troughs at forest sites in central Italy (Russo et al 2017) found that unlit troughs had higher drinking activity for five of six bat species/species groups than troughs illuminated with artificial light. More drinking buzzes were recorded for five bat species/species groups when troughs were unlit than when they were illuminated with artificial light: barbastelle bat Barbastella barbastellus (unlit: 584; lit: 306), brown long-eared bat Plecotus auritus (unlit: 78; lit: 0), Myotis spp. (unlit: 599; lit: 134), Kuhl’s pipistrelle Pipistrellus kuhlii (unlit: 116; lit: 64) and Savi’s pipistrelle Hypsugo savii (unlit: 39; lit: 10). For the common pipistrelle Pipistrellus pipistrellus, the difference was not significant when troughs were unlit (240 drinking buzzes) or illuminated (165 drinking buzzes). Each of four cattle troughs consisted of two troughs (6 x 1.5 m) joined together. Troughs were illuminated with a portable LED (light-emitting diode) white light (average 49 lux). Each of four sites was surveyed using bat detectors on two nights with five randomized lit and unlit 10 minute intervals/night in July–August 2015.

Output references
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