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dc.contributor.author
Rojas Ripari, Juan Manuel
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Ursino, Cynthia Alejandra
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Reboreda, Juan Carlos
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de Marsico, Maria Cecilia
dc.date.available
2022-08-01T22:56:29Z
dc.date.issued
2019-03
dc.identifier.citation
Rojas Ripari, Juan Manuel; Ursino, Cynthia Alejandra; Reboreda, Juan Carlos; de Marsico, Maria Cecilia; Innate development of acoustic signals for host parent–offspring recognition in the brood-parasitic Screaming Cowbird Molothrus rufoaxillaris; Wiley Blackwell Publishing, Inc; Ibis; 161; 4; 3-2019; 717-729
dc.identifier.issn
0019-1019
dc.identifier.uri
http://hdl.handle.net/11336/163768
dc.description.abstract
Young birds communicate their need to parents through complex begging displays that include visual and acoustic cues. Nestlings of interspecific brood parasites must ‘tune’ into these communication channels to secure parental care from their hosts. Various studies show that parasitic nestlings can effectively manipulate host parental behaviour through their begging calls, but how these manipulative acoustic signals develop in growing parasites remains poorly understood. We investigated the influence of social experience on begging call development in a host-specialist brood parasite, the Screaming Cowbird Molothrus rufoaxillaris. Screaming Cowbird nestlings look and sound similar to those of the primary host, the Greyish Baywing Agelaioides badius. This resemblance is likely to be adaptive because Baywings discriminate against fledglings unlike their own and provision nests at higher rates in response to Baywing-like begging calls than to non-mimetic begging calls. By means of cross-fostering and playback experiments, we tested whether the acoustic cues that elicit recognition by Baywings develop innately in Screaming Cowbird nestlings or are acquired through social experience with host parents or nest mates. Our results suggest that begging call structure was partially modulated by experience because Baywing-reared Screaming Cowbird and host nestlings were acoustically more similar as age increased, whereas acoustic similarity between cross-fostered and Baywing-reared Screaming Cowbird nestlings decreased from 4–5 to 8–10 days of age. Cross-fostered Screaming Cowbirds developed begging calls of lower minimum frequency and broader bandwidth than those of Baywing-reared Screaming Cowbirds by the age of 8–10 days. Despite the observed differences in begging call structure, however, adult Baywings responded similarly to begging calls of 8- to 10-day-old cross-fostered and Baywing-reared Screaming Cowbirds, suggesting that these were functionally equivalent from the host's perspective. These findings support the idea that, although rearing environment can influence certain begging call parameters, the acoustic cues that serve for offspring recognition by Baywings develop in young Screaming Cowbirds independently of social experience.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BEGGING CALL
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BROOD PARASITISM
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VOCAL DEVELOPMENT
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VOCAL MIMICRY
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Zoología, Ornitología, Entomología, Etología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Innate development of acoustic signals for host parent–offspring recognition in the brood-parasitic Screaming Cowbird Molothrus rufoaxillaris
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-20T14:49:47Z
dc.journal.volume
161
dc.journal.number
4
dc.journal.pagination
717-729
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Rojas Ripari, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.description.fil
Fil: Ursino, Cynthia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.description.fil
Fil: Reboreda, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.description.fil
Fil: de Marsico, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.journal.title
Ibis
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/ibi.12672
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/ibi.12672
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