期刊
ROYAL SOCIETY OPEN SCIENCE
卷 5, 期 6, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rsos.180205
关键词
ALAN; bat activity; dimming; light-emitting diode street lights; light-opportunistic species; light-averse species
资金
- Natural Environment Research Council [NE/K500823/1]
- NERC [NE/I027460/1] Funding Source: UKRI
Emerging lighting technologies provide opportunities for reducing carbon footprints, and for biodiversity conservation. In addition to installing light-emitting diode street lights, many local authorities are also dimming street lights. This might benefit light-averse bat species by creating dark refuges for these bats to forage and commute in human-dominated habitats. We conducted a field experiment to determine how light intensity affects the activity of the light-opportunistic Pipistrellus pipistrellus and light-averse bats in the genus Myotis. We used four lighting levels controlled under a central management system at existing street lights in a suburban environment (0,25,50 and 100% of the original output). Higher light intensities (50 and 100% of original output) increased the activity of light-opportunistic species but reduced the activity of light-averse bats. Compared to the unlit treatment, the 25% lighting level did not significantly affect either P. pipistrellus or Myotis spp. Our results suggest that it is possible to achieve a light intensity that provides both economic and ecological benefits by providing sufficient light for human requirements while not deterring light-averse bats.
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