Sex-specific effects of predation risk on parental care in a sexually dichromatic Neotropical songbird

Moraes, Pedro Z. de; Diniz, Pedro; Macedo, Regina Helena Ferraz

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Campo DC	Valor	Idioma
dc.contributor.author	Moraes, Pedro Z. de	-
dc.contributor.author	Diniz, Pedro	-
dc.contributor.author	Macedo, Regina Helena Ferraz	-
dc.date.accessioned	2022-02-12T19:45:35Z	-
dc.date.available	2022-02-12T19:45:35Z	-
dc.date.issued	2020	-
dc.identifier.citation	MORAES, Pedro Z. de; DINIZ, Pedro; MACEDO, Regina H. Sex-specific effects of predation risk on parental care in a sexually dichromatic Neotropical songbird. Journal of Avian Biology, e02483, p. 1–12, 2020. DOI: 10.1111/jav.02483. Disponível em: https://onlinelibrary.wiley.com/doi/abs/10.1111/jav.02483. Acesso em: 12 fev. 2022.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/42876	-
dc.language.iso	Inglês	pt_BR
dc.publisher	Wiley	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Sex-specific effects of predation risk on parental care in a sexually dichromatic Neotropical songbird	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Animais - comportamento	pt_BR
dc.subject.keyword	Tiziu	pt_BR
dc.subject.keyword	Seleção natural	pt_BR
dc.subject.keyword	Ninho - predação	pt_BR
dc.subject.keyword	Papel sexual	pt_BR
dc.rights.license	© 2020 Nordic Society Oikos. Published by John Wiley & Sons Ltd	pt_BR
dc.identifier.doi	http://doi.org/10.1111/jav.02483	pt_BR
dc.relation.publisherversion	https://onlinelibrary.wiley.com/doi/abs/10.1111/jav.02483	pt_BR
dc.description.abstract1	Predation risk affects a broad range of bird behaviours, especially parental care. The adaptive behavioural changes presented by both parents, however, may differ according to different levels of predation risk suffered by each sex. This is especially prominent in sexually dichromatic species, where one of the sexes is more visually conspicuous and hence vulnerable to increased nest predation risk during nest visits. Here, we experimentally investigated how predation risk affects the parental behaviour of a sexually dichromatic Neotropical passerine, the blue-black grassquit Volatinia jacarina. We used playbacks of known predators and non-predatorial control sympatric species near nesting pairs in the field. Results show that grassquits modify their behaviour according to predation risk and that this behavioural response is sex-dependent. Males decrease their nest visit times, become more discreet when moving towards the nest, and stop performing sexual displays after leaving the nest. In contrast, females tend to decrease latency to visit the nest and increase the duration of brooding bouts. These different sex responses reduce nest visual and acoustic detectability, since conspicuous males are readily spotted on nests and cryptic females camouflage nestlings and suppress begging calls. Although these behavioural changes might reduce predation risk, there might be a cost of reduced food load to nestlings and increased brood starvation risk. These changes in nesting activities illustrate the behavioural adaptability of passerines to ensure offspring survival in tropical high predation risk environments.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0003-3033-1209	pt_BR
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