Show simple item record Fernandez, Gustavo Javier Llambias, Paulo 2016-02-19T15:22:29Z 2013-03
dc.identifier.citation Fernandez, Gustavo Javier; Llambias, Paulo; Parental risk-taking behaviour and nest defence during the nestling rearing stage in Northern House Wrens Troglodytes aedon; Museum and Institute of Zoology, Polish Academy of Sciences; Acta Ornithologica; 48; 1; 3-2013; 55-63
dc.identifier.issn 0001-6454
dc.description.abstract Risk-taking behaviour of short lived nesting birds is often explained in relation to the reproductive value of offspring (the reproductive value hypothesis) and the harm that the absence of parental care can cause to nestlings (risk of harm-to-offspring hypothesis). The reproductive value hypothesis predicts that the risk assumed by adults should increases with nestling age, whereas the risk of harm-to-offspring hypothesis predicts the opposite pattern. We assessed the risk-taking behaviour of nesting males and females Northern House Wrens, Troglodytes aedon, faced with a predation threat (plastic owl model) when rearing 3-4 and 10-12 days old nestlings. We used the time elapsed until parents first entered the nest-box as a measure of risk-taking behaviour and alarm calling rate as a proxy of nest defence. Females resumed sooner parental activities when exposed to the model when nestlings were young, supporting the risk of harm-to-offspring hypothesis. In contrast, the time lasted to resume parental duties by males did not differ between nestling ages. Alarm calling rate increased with the nestling stage, as predicted by the reproductive value hypothesis. We suggest that nesting House Wrens responded to both nestling requirements and to the reproductive value of thebrood, assuming greater risks when nestlings are more vulnerable and a more intense nest defence when nestlings are older.
dc.format application/pdf
dc.language.iso eng
dc.publisher Museum and Institute of Zoology, Polish Academy of Sciences
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject NEST DEFENSE
dc.subject RISK TAKING
dc.subject BROOD VALUE
dc.subject.classification Zoología, Ornitología, Entomología, Etología
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Parental risk-taking behaviour and nest defence during the nestling rearing stage in Northern House Wrens Troglodytes aedon
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2016-03-30 10:35:44.97925-03
dc.journal.volume 48
dc.journal.number 1
dc.journal.pagination 55-63
dc.journal.pais Polonia
dc.journal.ciudad Warszawa
dc.description.fil Fil: Fernandez, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.description.fil Fil: Llambias, Paulo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza. Instituto Argentino de Investigaciones de Zonas Aridas; Argentina
dc.journal.title Acta Ornithologica
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/10.3161/000164513X670016
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/1734-8471

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)