Moonlight makes owls more chatty.

PloS One
Vincenzo PenterianiRui Lourenço

Abstract

Lunar cycles seem to affect many of the rhythms, temporal patterns and behaviors of living things on Earth. Ambient light is known to affect visual communication in animals, with the conspicuousness of visual signals being largely determined by the light available for reflection by the sender. Although most previous studies in this context have focused on diurnal light, moonlight should not be neglected from the perspective of visual communication among nocturnal species. We recently discovered that eagle owls Bubo bubo communicate with conspecifics using a patch of white throat plumage that is repeatedly exposed during each call and is only visible during vocal displays. Here we provide evidence that this species uses moonlight to increase the conspicuousness of this visual signal during call displays. We found that call displays are directly influenced by the amount of moonlight, with silent nights being more frequent during periods with no-moonlight than moonlight. Furthermore, high numbers of calling bouts were more frequent at moonlight. Finally, call posts were located on higher positions on moonlit nights. Our results support the idea that moon phase affects the visual signaling behavior of this species, and provide a st...Continue Reading

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Citations

Apr 10, 2013·Biological Reviews of the Cambridge Philosophical Society·Kevin J GastonJohn Hopkins
Apr 22, 2015·Clinical Obesity·T Yamamoto, P N Trathan
Apr 8, 2015·Die Naturwissenschaften·Vincenzo PenterianiLetizia Campioni
Nov 24, 2011·PloS One·Patrick PinetMatthieu Le Corre
Jan 30, 2016·Journal of Biological Rhythms·Airam RodríguezPeter Dann
Jan 26, 2018·Chronobiology International·Narimen YousfiKarim Chamari
Jun 7, 2018·Chronobiology International·Narimen YousfiKarim Chamari
Jun 26, 2018·Ecology and Evolution·Philina A EnglishDavid J Green
Jul 5, 2013·Proceedings. Biological Sciences·Noga Kronfeld-SchorCharlotte Helfrich-Forster
Sep 4, 2019·Nature Ecology & Evolution·Luis M San-JoseAlexandre Roulin
Sep 4, 2019·Nature Ecology & Evolution·Jesús M Avilés
Feb 15, 2017·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Vincenzo Penteriani, María Del Mar Delgado
Jul 3, 2021·Biological Reviews of the Cambridge Philosophical Society·David N FisherEric W Wice

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