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dc.contributor.author
de la Colina, María Alicia
dc.contributor.author
Hauber, Mark E.
dc.contributor.author
Strausberger, Bill M.
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Reboreda, Juan Carlos
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Mahler, Bettina
dc.date.available
2022-12-27T13:01:35Z
dc.date.issued
2016-06
dc.identifier.citation
de la Colina, María Alicia; Hauber, Mark E.; Strausberger, Bill M.; Reboreda, Juan Carlos; Mahler, Bettina; Molecular tracking of individual host use in the Shiny Cowbird – a generalist brood parasite; John Wiley & Sons; Ecology and Evolution; 6; 14; 6-2016; 4684-4696
dc.identifier.issn
2045-7758
dc.identifier.uri
http://hdl.handle.net/11336/182487
dc.description.abstract
Generalist parasites exploit multiple host species at the population level, but the individual parasite's strategy may be either itself a generalist or a specialist pattern of host species use. Here, we studied the relationship between host availability and host use in the individual parasitism patterns of the Shiny Cowbird Molothrus bonariensis, a generalist avian obligate brood parasite that parasitizes an extreme range of hosts. Using five microsatellite markers and an 1120-bp fragment of the mtDNA control region, we reconstructed full-sibling groups from 359 cowbird eggs and chicks found in nests of the two most frequent hosts in our study area, the Chalk-browed Mockingbird Mimus saturninus and the House Wren Troglodytes aedon. We were able to infer the laying behavior of 17 different females a posteriori and found that they were mostly faithful to a particular laying area and host species along the entire reproductive season and did not avoid using previously parasitized nests (multiple parasitism) even when other nests were available for parasitism. Moreover, we found females using the same host nest more than once (repeated parasitism), which had not been previously reported for this species. We also found few females parasitizing more than one host species. The use of an alternative host was not related to the main hosts' nest availability. Overall, female shiny cowbirds use a spatially structured and host species specific approach for parasitism, but they do so nonexclusively, resulting in both detectable levels of multiple parasitism and generalism at the level of individual parasites.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
HOST PREFERENCE
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LAYING PATTERNS
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MICROSATELLITES
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MOLOTHRUS BONARIENSIS
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MTDNA
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NEST-USE STRATEGIES
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Zoología, Ornitología, Entomología, Etología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Molecular tracking of individual host use in the Shiny Cowbird – a generalist brood parasite
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-12-27T11:09:55Z
dc.journal.volume
6
dc.journal.number
14
dc.journal.pagination
4684-4696
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: de la Colina, María Alicia. 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: Hauber, Mark E.. City University of New York; Estados Unidos
dc.description.fil
Fil: Strausberger, Bill M.. Field Museum of Natural History; Estados Unidos
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: Mahler, Bettina. 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
Ecology and Evolution
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/ece3.2234
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