Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)

Because of its parasitic habits, reproduction costs of the common cuckoo (Cuculus canorus) are mostly spent in pre-laying activities. Female costs are limited to searching host nests and laying eggs, whereas, males spend time in performing intense vocal displays, possibly with territorial purpose. T...

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Autores principales:	Martina Esposito, Maria Ceraulo, Beniamino Tuliozi, Giuseppa Buscaino, Salvatore Mazzola, Luigi Sala, Matteo Dal Zotto, Daniela Campobello
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	cuckoo sexual selection courtship rituals bioacoustics multimodal signals Evolution QH359-425 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/acbb89c1c4684f7f8711d222940f301d
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spelling	oai:doaj.org-article:acbb89c1c4684f7f8711d222940f301d2021-11-16T06:50:52ZDecoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)2296-701X10.3389/fevo.2021.725858https://doaj.org/article/acbb89c1c4684f7f8711d222940f301d2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fevo.2021.725858/fullhttps://doaj.org/toc/2296-701XBecause of its parasitic habits, reproduction costs of the common cuckoo (Cuculus canorus) are mostly spent in pre-laying activities. Female costs are limited to searching host nests and laying eggs, whereas, males spend time in performing intense vocal displays, possibly with territorial purpose. This last aspect, together with a sexual plumage dimorphism, points to both intra- and inter-sexual selections operating within this species. One element triggering sexual selection is a differential fitness accrued by different phenotypes. Before analyzing possible sexual selection mechanisms operating in cuckoos, it is therefore necessary to verify whether there is a variability among male secondary characters by describing and quantifying them. Here we aimed to quantitatively characterize the main two potential candidates of sexual selection traits, i.e., calls and displays, shown by males at perches. During the 2019 breeding season, in a site within the Po Plain, we both audio and video recorded cuckoo males at five different perches. We analyzed acoustic variables as well as display sequences searching for potential correlations. We found a significant variation among calls that could be clustered into four vocal types. We also found that no visual displays were associated with vocal displays; cuckoo males were either vocal and motionless or soundless and active. We discuss our results under the perspective of the potential value of sexual selection in brood parasites and its role in its parasitic habit.Martina EspositoMaria CerauloBeniamino TulioziGiuseppa BuscainoSalvatore MazzolaLuigi SalaMatteo Dal ZottoDaniela CampobelloFrontiers Media S.A.articlecuckoosexual selectioncourtship ritualsbioacousticsmultimodal signalsEvolutionQH359-425EcologyQH540-549.5ENFrontiers in Ecology and Evolution, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cuckoo sexual selection courtship rituals bioacoustics multimodal signals Evolution QH359-425 Ecology QH540-549.5
spellingShingle	cuckoo sexual selection courtship rituals bioacoustics multimodal signals Evolution QH359-425 Ecology QH540-549.5 Martina Esposito Maria Ceraulo Beniamino Tuliozi Giuseppa Buscaino Salvatore Mazzola Luigi Sala Matteo Dal Zotto Daniela Campobello Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)
description	Because of its parasitic habits, reproduction costs of the common cuckoo (Cuculus canorus) are mostly spent in pre-laying activities. Female costs are limited to searching host nests and laying eggs, whereas, males spend time in performing intense vocal displays, possibly with territorial purpose. This last aspect, together with a sexual plumage dimorphism, points to both intra- and inter-sexual selections operating within this species. One element triggering sexual selection is a differential fitness accrued by different phenotypes. Before analyzing possible sexual selection mechanisms operating in cuckoos, it is therefore necessary to verify whether there is a variability among male secondary characters by describing and quantifying them. Here we aimed to quantitatively characterize the main two potential candidates of sexual selection traits, i.e., calls and displays, shown by males at perches. During the 2019 breeding season, in a site within the Po Plain, we both audio and video recorded cuckoo males at five different perches. We analyzed acoustic variables as well as display sequences searching for potential correlations. We found a significant variation among calls that could be clustered into four vocal types. We also found that no visual displays were associated with vocal displays; cuckoo males were either vocal and motionless or soundless and active. We discuss our results under the perspective of the potential value of sexual selection in brood parasites and its role in its parasitic habit.
format	article
author	Martina Esposito Maria Ceraulo Beniamino Tuliozi Giuseppa Buscaino Salvatore Mazzola Luigi Sala Matteo Dal Zotto Daniela Campobello
author_facet	Martina Esposito Maria Ceraulo Beniamino Tuliozi Giuseppa Buscaino Salvatore Mazzola Luigi Sala Matteo Dal Zotto Daniela Campobello
author_sort	Martina Esposito
title	Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)
title_short	Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)
title_full	Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)
title_fullStr	Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)
title_full_unstemmed	Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)
title_sort	decoupled acoustic and visual components in the multimodal signals of the common cuckoo (cuculus canorus)
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/acbb89c1c4684f7f8711d222940f301d
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Decoupled Acoustic and Visual Components in the Multimodal Signals of the Common Cuckoo (Cuculus canorus)

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