Artificial light pollution increases nocturnal vigilance in peahens

PeerJ
Jessica L YorzinskiAmanda C Gnerlich

Abstract

Artificial light pollution is drastically changing the sensory environments of animals. Even though many animals are now living in these changed environments, the effect light pollution has on animal behavior is poorly understood. We investigated the effect of light pollution on nocturnal vigilance in peahens (Pavo cristatus). Captive peahens were exposed to either artificial lighting or natural lighting at night. We employed a novel method to record their vigilance behavior by attaching accelerometers to their heads and continuously monitoring their large head movements. We found that light pollution significantly increases nocturnal vigilance in peahens. Furthermore, the birds faced a trade-off between vigilance and sleep at night: peahens that were more vigilant spent less time sleeping. Given the choice, peahens preferred to roost away from high levels of artificial lighting but showed no preference for roosting without artificial lighting or with low levels of artificial lighting. Our study demonstrates that light pollution can have a substantial impact on animal behavior that can potentially result in fitness consequences.

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Citations

Oct 6, 2016·PeerJ·Jessica L Yorzinski, Fredrick S Hermann
Aug 31, 2016·Scientific Reports·Jessica L Yorzinski
Jun 10, 2017·Global Change Biology·Jenny Q OuyangKamiel Spoelstra
May 17, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Valentina J AlaasamJenny Q Ouyang
Jul 28, 2018·Proceedings. Biological Sciences·Kacey L Dananay, Michael F Benard
May 29, 2018·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Kathryn L G Russart, Randy J Nelson
Jan 7, 2018·Biology Open·Jessica L YorzinskiMelissa Davis
Sep 4, 2020·Environmental Pollution·Farley ConnellyJohn A Lesku
Feb 3, 2021·Clocks & Sleep·Anne E AulsebrookJohn A Lesku
Jul 25, 2020·Current Biology : CB·Anne E AulsebrookJohn A Lesku
Aug 14, 2020·Journal of Environmental Management·Mykyta PeregrymFabio Falchi
Jul 16, 2021·Environmental Pollution·Bo LuoJiang Feng

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