Impact of artificial light at night on diurnal plant-pollinator interactions

Simone Giavi, Colin Fontaine and Eva Knop ()
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Simone Giavi: Agroscope
Colin Fontaine: Centre d’Ecologie et des Sciences de la Conservation, CESCO, Muséum National d’Histoire Naturelle—CNRS—Sorbonne Université
Eva Knop: Agroscope

Nature Communications, 2021, vol. 12, issue 1, 1-5

Abstract: Abstract Artificial light at night has rapidly spread around the globe over the last decades. Evidence is increasing that it has adverse effects on the behavior, physiology, and survival of animals and plants with consequences for species interactions and ecosystem functioning. For example, artificial light at night disrupts plant-pollinator interactions at night and this can have consequences for the plant reproductive output. By experimentally illuminating natural plant-pollinator communities during the night using commercial street-lamps we tested whether light at night can also change interactions of a plant-pollinator community during daytime. Here we show that artificial light at night can alter diurnal plant-pollinator interactions, but the direction of the change depends on the plant species. We conclude that the effect of artificial light at night on plant-pollinator interactions is not limited to the night, but can also propagate to the daytime with so far unknown consequences for the pollinator community and the diurnal pollination function and services they provide.

Date: 2021
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DOI: 10.1038/s41467-021-22011-8

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