Potential biological and ecological effects of flickering artificial light.

Organisms have evolved under stable natural lighting regimes, employing cues from these to govern key ecological processes. However, the extent and density of artificial lighting within the environment has increased recently, causing widespread alteration of these regimes. Indeed, night-time electri...

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Main Authors: Richard Inger, Jonathan Bennie, Thomas W Davies, Kevin J Gaston
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24874801/?tool=EBI
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author Richard Inger
Jonathan Bennie
Thomas W Davies
Kevin J Gaston
author_facet Richard Inger
Jonathan Bennie
Thomas W Davies
Kevin J Gaston
author_sort Richard Inger
collection DOAJ
description Organisms have evolved under stable natural lighting regimes, employing cues from these to govern key ecological processes. However, the extent and density of artificial lighting within the environment has increased recently, causing widespread alteration of these regimes. Indeed, night-time electric lighting is known significantly to disrupt phenology, behaviour, and reproductive success, and thence community composition and ecosystem functioning. Until now, most attention has focussed on effects of the occurrence, timing, and spectral composition of artificial lighting. Little considered is that many types of lamp do not produce a constant stream of light but a series of pulses. This flickering light has been shown to have detrimental effects in humans and other species. Whether a species is likely to be affected will largely be determined by its visual temporal resolution, measured as the critical fusion frequency. That is the frequency at which a series of light pulses are perceived as a constant stream. Here we use the largest collation to date of critical fusion frequencies, across a broad range of taxa, to demonstrate that a significant proportion of species can detect such flicker in widely used lamps. Flickering artificial light thus has marked potential to produce ecological effects that have not previously been considered.
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spelling doaj.art-24d3a855d21e4a3595e04f09906f4cf42022-12-21T18:10:38ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0195e9863110.1371/journal.pone.0098631Potential biological and ecological effects of flickering artificial light.Richard IngerJonathan BennieThomas W DaviesKevin J GastonOrganisms have evolved under stable natural lighting regimes, employing cues from these to govern key ecological processes. However, the extent and density of artificial lighting within the environment has increased recently, causing widespread alteration of these regimes. Indeed, night-time electric lighting is known significantly to disrupt phenology, behaviour, and reproductive success, and thence community composition and ecosystem functioning. Until now, most attention has focussed on effects of the occurrence, timing, and spectral composition of artificial lighting. Little considered is that many types of lamp do not produce a constant stream of light but a series of pulses. This flickering light has been shown to have detrimental effects in humans and other species. Whether a species is likely to be affected will largely be determined by its visual temporal resolution, measured as the critical fusion frequency. That is the frequency at which a series of light pulses are perceived as a constant stream. Here we use the largest collation to date of critical fusion frequencies, across a broad range of taxa, to demonstrate that a significant proportion of species can detect such flicker in widely used lamps. Flickering artificial light thus has marked potential to produce ecological effects that have not previously been considered.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24874801/?tool=EBI
spellingShingle Richard Inger
Jonathan Bennie
Thomas W Davies
Kevin J Gaston
Potential biological and ecological effects of flickering artificial light.
PLoS ONE
title Potential biological and ecological effects of flickering artificial light.
title_full Potential biological and ecological effects of flickering artificial light.
title_fullStr Potential biological and ecological effects of flickering artificial light.
title_full_unstemmed Potential biological and ecological effects of flickering artificial light.
title_short Potential biological and ecological effects of flickering artificial light.
title_sort potential biological and ecological effects of flickering artificial light
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24874801/?tool=EBI
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