Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)

Abstract Bats are renowned for their sophisticated echolocation. However, recent research has indicated that bats may be less reliant on echolocation than has long been assumed. To test the hypothesis that bats reduce their use of echolocation to avoid eavesdropping by conspecifics, we deployed mini...

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Autores principales:	Aaron J. Corcoran, Theodore J. Weller, Annalise Hopkins, Yossi Yovel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9322a7ffbfdc48eaa5a471a77b9d6a40
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spelling	oai:doaj.org-article:9322a7ffbfdc48eaa5a471a77b9d6a402021-12-02T15:14:28ZSilence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)10.1038/s41598-021-97628-22045-2322https://doaj.org/article/9322a7ffbfdc48eaa5a471a77b9d6a402021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97628-2https://doaj.org/toc/2045-2322Abstract Bats are renowned for their sophisticated echolocation. However, recent research has indicated that bats may be less reliant on echolocation than has long been assumed. To test the hypothesis that bats reduce their use of echolocation to avoid eavesdropping by conspecifics, we deployed miniature tags that recorded ultrasound and accelerations on 10 wild hoary bats (Lasiurus cinereus) for one or two nights. This resulted in 997 10-s recordings. Bats switched between periods predominated by their typical high-intensity echolocation, or periods predominated by micro calls (unusually short, quiet calls), or no detectable calls (“silence”). Periods of high-intensity echolocation included high rates of feeding buzzes, whereas periods of micro calls and silence included high rates of social interactions with other bats. Bats switched back to high-intensity echolocation during actual social interactions. These data support the hypothesis that bats use reduced forms of echolocation and fly in silence to avoid eavesdropping from conspecifics, perhaps in the context of mating-related behavior. They also provide the strongest demonstration to date that bats fly for extended periods of time without the use of echolocation.Aaron J. CorcoranTheodore J. WellerAnnalise HopkinsYossi YovelNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aaron J. Corcoran Theodore J. Weller Annalise Hopkins Yossi Yovel Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)
description	Abstract Bats are renowned for their sophisticated echolocation. However, recent research has indicated that bats may be less reliant on echolocation than has long been assumed. To test the hypothesis that bats reduce their use of echolocation to avoid eavesdropping by conspecifics, we deployed miniature tags that recorded ultrasound and accelerations on 10 wild hoary bats (Lasiurus cinereus) for one or two nights. This resulted in 997 10-s recordings. Bats switched between periods predominated by their typical high-intensity echolocation, or periods predominated by micro calls (unusually short, quiet calls), or no detectable calls (“silence”). Periods of high-intensity echolocation included high rates of feeding buzzes, whereas periods of micro calls and silence included high rates of social interactions with other bats. Bats switched back to high-intensity echolocation during actual social interactions. These data support the hypothesis that bats use reduced forms of echolocation and fly in silence to avoid eavesdropping from conspecifics, perhaps in the context of mating-related behavior. They also provide the strongest demonstration to date that bats fly for extended periods of time without the use of echolocation.
format	article
author	Aaron J. Corcoran Theodore J. Weller Annalise Hopkins Yossi Yovel
author_facet	Aaron J. Corcoran Theodore J. Weller Annalise Hopkins Yossi Yovel
author_sort	Aaron J. Corcoran
title	Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)
title_short	Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)
title_full	Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)
title_fullStr	Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)
title_full_unstemmed	Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)
title_sort	silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (lasiurus cinereus)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9322a7ffbfdc48eaa5a471a77b9d6a40
work_keys_str_mv	AT aaronjcorcoran silenceandreducedecholocationduringflightareassociatedwithsocialbehaviorsinmalehoarybatslasiuruscinereus AT theodorejweller silenceandreducedecholocationduringflightareassociatedwithsocialbehaviorsinmalehoarybatslasiuruscinereus AT annalisehopkins silenceandreducedecholocationduringflightareassociatedwithsocialbehaviorsinmalehoarybatslasiuruscinereus AT yossiyovel silenceandreducedecholocationduringflightareassociatedwithsocialbehaviorsinmalehoarybatslasiuruscinereus
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Silence and reduced echolocation during flight are associated with social behaviors in male hoary bats (Lasiurus cinereus)

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