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dc.contributor.author
Marasco, Anna Carolina Milo
dc.contributor.author
Morgante, João Stenghel
dc.contributor.author
Barrionuevo, Melina
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dc.contributor.author
Frere, Esteban
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dc.contributor.author
Dantas, Gisele
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dc.date.available
2021-01-11T21:36:49Z
dc.date.issued
2020-01
dc.identifier.citation
Marasco, Anna Carolina Milo; Morgante, João Stenghel; Barrionuevo, Melina; Frere, Esteban; Dantas, Gisele; Molecular evidence of extra-pair paternity and intraspecific brood parasitism by the Magellanic Penguin (Spheniscus magellanicus); Springer; Journal of Ornithology; 161; 1; 1-2020; 125-135
dc.identifier.issn
2193-7206
dc.identifier.uri
http://hdl.handle.net/11336/122434
dc.description.abstract
Molecular studies have shown that, although most avian species are socially monogamous, they can exhibit different reproductive strategies, such as extra-pair paternity (EPP) and intraspecific brood parasitism (IBP). We investigated the genetic mating system of the Magellanic Penguin, Spheniscus magellanicus, a species that is reported to be monogamous, with little or no evidence of extra-pair paternity, high partner faithfulness over the years and intense biparental care. Thus, we proposed that if EPP does occur, the rate will be low and could be related to increased genetic diversity among offspring or the body condition of parents. As a consequence, we hypothesize that offspring from EPP will exhibit faster growth than non-EPP offspring, thus increasing their survival probability. In contrast to expectations, EPP was detected in 31% of the offspring and 48% of the nests had at least one extra-pair young. In addition, 6% of chicks were not the offspring of the putative mother or either member of the social pair, indicating evidence of IBP. However, we did not find a difference in genetic diversity between nests with or without EPP, nor did we find differences in parent body condition. Offspring from EPP showed slightly faster growth than non-EPP offspring, although this difference was not statistically significant. These results reveal a high rate of EPP and a low rate of IBP, both of which were previously unknown for this species. Our findings demonstrate that the Magellanic penguin has a more complex social mating system than previously thought.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BODY CONDITION
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EXTRA-PAIR COPULATION
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GENETIC DIVERSITY
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MICROSATELLITES
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SEX RATIO
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Biología Reproductiva
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Molecular evidence of extra-pair paternity and intraspecific brood parasitism by the Magellanic Penguin (Spheniscus magellanicus)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-19T22:54:13Z
dc.journal.volume
161
dc.journal.number
1
dc.journal.pagination
125-135
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlín
dc.description.fil
Fil: Marasco, Anna Carolina Milo. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Morgante, João Stenghel. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Barrionuevo, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
dc.description.fil
Fil: Frere, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina
dc.description.fil
Fil: Dantas, Gisele. Pontifícia Universidade Católica de Minas Gerais; Brasil
dc.journal.title
Journal of Ornithology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10336-019-01720-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s10336-019-01720-4
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