The impacts of new street light technologies: experimentally testing the effects on bats of changing from low-pressure sodium to white metal halide

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
Emma Louise StoneGareth Jones

Abstract

Artificial light at night is a major feature of anthropogenic global change and is increasingly recognized as affecting biodiversity, often negatively. On a global scale, newer technology white lights are replacing orange sodium lights to reduce energy waste. In 2009, Cornwall County Council (UK) commenced replacement of existing low-pressure sodium (LPS) high intensity discharge (HID) street lights with new Phillips CosmoPolis white ceramic metal halide street lights to reduce energy wastage. This changeover provided a unique collaborative opportunity to implement a before-after-control-impact field experiment to investigate the ecological effects of newly installed broad spectrum light technologies. Activity of the bat species Pipistrellus pipistrellus, P. pygmaeus and Nyctalus/Eptesicus spp. was significantly higher at metal halide than LPS lights, as found in other studies of bat activity at old technology (i.e. mercury vapour) white light types. No significant difference was found in feeding attempts per bat pass between light types, though more passes overall were recorded at metal halide lights. Species-specific attraction of bats to the metal halide lights could have cascading effects at lower trophic levels. We highlig...Continue Reading

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Citations

Mar 18, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Kevin J GastonFranz Hölker
Jun 1, 2017·PloS One·Christian C VoigtSilke L Voigt-Heucke
May 4, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Alicia M Dimovski, Kylie A Robert
May 29, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Kamiel SpoelstraMarcel E Visser
May 29, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Kathryn L G Russart, Randy J Nelson
May 27, 2021·PloS One·Kenneth Ee Meng LeeJoanna L Coleman
Jul 16, 2021·Environmental Pollution·Bo LuoJiang Feng
Aug 27, 2021·Science Advances·Douglas H BoyesMichael J O Pocock

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