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dc.contributor.author
de Marsico, Maria Cecilia
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dc.contributor.author
Gantchoff, Mariela G.
dc.contributor.author
Reboreda, Juan Carlos
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dc.date.available
2019-01-16T20:21:03Z
dc.date.issued
2012-05
dc.identifier.citation
de Marsico, Maria Cecilia; Gantchoff, Mariela G.; Reboreda, Juan Carlos; Host-parasite coevolution beyond the nestling stage?: Mimicry of host fledglings by the specialist screaming cowbird; The Royal Society; Proceedings of the Royal Society of London. Series B: Biological Sciences; 279; 1742; 5-2012; 3401-3408
dc.identifier.issn
0962-8452
dc.identifier.uri
http://hdl.handle.net/11336/68172
dc.description.abstract
textbook examples of host-parasite coevolution. By contrast, reciprocal adaptations and counteradaptations beyond the egg stage in brood parasites and their hosts have received less attention. The screaming cowbird (Molothrus rufoaxillaris) is a specialist obligate brood parasite whose fledglings look identical to those of its primary host, the baywing (Agelaioides badius). Such a resemblance has been proposed as an adaptation in response to host discrimination against odd-looking young, but evidence supporting this idea is scarce. Here, we examined this hypothesis by comparing the survival rates of young screaming cowbirds and non-mimetic shiny cowbirds (Molothrus bonariensis) cross-fostered to baywing nests and quantifying the similarity in plumage colour and begging calls between host and cowbird fledglings. Shiny cowbirds suffered higher post-fledging mortality rates (83%) than screaming cowbirds (0%) owing to host rejection. Visual modelling revealed that screaming cowbirds, but not shiny cowbirds, were indistinguishable from host young in plumage colour. Similarly, screaming cowbirds matched baywings' begging calls more closely than shiny cowbirds. Our results strongly support the occurrence of host fledgling mimicry in screaming cowbirds and suggest a role of visual and vocal cues in fledgling discrimination by baywings.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
The Royal Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Brood Parasitism
dc.subject
Chick Rejection
dc.subject
Coevolution
dc.subject
Cowbird
dc.subject
Mimicry
dc.subject
Visual Modelling
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Host-parasite coevolution beyond the nestling stage?: Mimicry of host fledglings by the specialist screaming cowbird
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-16T18:21:39Z
dc.journal.volume
279
dc.journal.number
1742
dc.journal.pagination
3401-3408
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: de Marsico, Maria Cecilia. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina
dc.description.fil
Fil: Gantchoff, Mariela G.. Universidad de Buenos Aires; Argentina
dc.description.fil
Fil: Reboreda, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina. Universidad de Buenos Aires; Argentina
dc.journal.title
Proceedings of the Royal Society of London. Series B: Biological Sciences
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1098/rspb.2012.0612
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/full/10.1098/rspb.2012.0612
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3396896/
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