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Multiple night-time light-emitting diode lighting strategies impact grassland invertebrate assemblages [Global Change Biology]

Keywords : artificial light at night, beetles, grassland, invertebrates, light-emitting diodes, light pollution, spiders

par Frédéric Magné - publié le , mis à jour le

White light-emitting diodes (LEDs) are rapidly replacing conventional outdoor lighting technologies around the world. Despite rising concerns over their impact on the environment and human health, the flexibility of LEDs has been advocated as a means of mitigating the ecological impacts of globally widespread outdoor night-time lighting through spectral manipulation, dimming and switching lights off during periods of low demand. We conducted a three-year field experiment in which each of these lighting strategies was simulated in a previously artificial light naïve grassland ecosystem. White LEDs both increased the total abundance and changed the assemblage composition of adult spiders and beetles.(...)

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