Elgert C, Hopkins J, Kaitala A, Candolin U. 2020 Reproduction under light pollution: maladaptive response to spatial variation in artificial light in a glow-worm. Proc. R. Soc. B 287: 20200806. http://dx.doi.org/10.1098/rspb.2020.0806
Reproduction under light pollution : maladaptive response to spatial variation in artificial light in a glow-worm
|Author:||Elgert, Christina1,2; Hopkins, Juhani3,2; Kaitala, Arja3,2;|
1Organismal and Evolutionary Biology, University of Helsinki, PO Box 65, 00014 Helsinki, Finland
2Tvärminne Zoological Station, University of Helsinki, J.A. Palméns väg 260, 10900 Hanko, Finland
3Department of Ecology and Genetics, University of Oulu, PO Box 3000, 90014 Oulu, Finland
|Online Access:||PDF Full Text (PDF, 0.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020082864568
The Royal Society,
|Publish Date:|| 2020-08-28
The amount of artificial light at night is growing worldwide, impacting the behaviour of nocturnal organisms. Yet, we know little about the consequences of these behavioural responses for individual fitness and population viability. We investigated if females of the common glow-worm Lampyris noctiluca—which glow in the night to attract males—mitigate negative effects of artificial light on mate attraction by adjusting the timing and location of glowing to spatial variation in light conditions. We found females do not move away from light when exposed to a gradient of artificial light, but delay or even refrain from glowing. Further, we demonstrate that this response is maladaptive, as our field study showed that staying still when exposed to artificial light from a simulated streetlight decreases mate attraction success, while moving only a short distance from the light source can markedly improve mate attraction. These results indicate that glow-worms are unable to respond to spatial variation in artificial light, which may be a factor in their global decline. Consequently, our results support the hypothesis that animals often lack adaptive behavioural responses to anthropogenic environmental changes and underlines the importance of considering behavioural responses when investigating the effects of human activities on wildlife.
Proceedings of the Royal Society. B, Biological sciences
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
1181 Ecology, evolutionary biology
The work was funded by the Swedish Cultural Foundation in Finland (grant no. 148370 to C.E.), Maj and Tor Nessling Foundation (grant no. 202000239 to C.E.), and Academy of Finland (grant no. 294664 to A.K.).
|Academy of Finland Grant Number:||
294664 (Academy of Finland Funding decision)
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© 2020 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.