Chronic exposure to dim artificial light at night decreases fecundity and adult survival in Drosophila melanogaster

Journal of Insect Physiology
L K McLayTherésa M Jones

Abstract

The presence of artificial light at night is expanding in geographical range and increasing in intensity to such an extent that species living in urban environments may never experience natural darkness. The negative ecological consequences of artificial night lighting have been identified in several key life history traits across multiple taxa (albeit with a strong vertebrate focus); comparable data for invertebrates is lacking. In this study, we explored the effect of chronic exposure to different night-time lighting intensities on growth, reproduction and survival in Drosophila melanogaster. We reared three generations of flies under identical daytime light conditions (2600lx) and one of four ecologically relevant ALAN treatments (0, 1, 10 or 100lx), then explored variation in oviposition, number of eggs produced, juvenile growth and survival and adult survival. We found that, in the presence of light at night (1, 10 and 100lx treatments), the probability of a female commencing oviposition and the number of eggs laid was significantly reduced. This did not translate into differences at the juvenile phase: juvenile development times and the probability of eclosing as an adult were comparable across all treatments. However, we...Continue Reading

References

Oct 2, 2015·Proceedings. Biological Sciences·Kylie A RobertBrian Chambers

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Citations

Jul 31, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Davide M DominoniBarbara Helm
Mar 6, 2018·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Jie ShenQing Xiao
Oct 17, 2018·PeerJ·Nikolas J WillmottTherésa M Jones
May 8, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Lucy Katherine McLayTherésa Melanie Jones
Nov 4, 2020·Nature Ecology & Evolution·Dirk SandersKevin J Gaston
Jan 23, 2021·Journal of Insect Physiology·Lydia R FyieMegan E Meuti
Mar 17, 2021·Integrative and Comparative Biology·Ashley A WilsonClinton D Francis
Apr 1, 2021·Integrative and Comparative Biology·Jacob R Bumgarner, Randy J Nelson
Jun 11, 2021·PloS One·Homica AryaSubhash Rajpurohit
Jun 10, 2021·Proceedings. Biological Sciences·Jules SchliglerSuzanne C Mills

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