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Title
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Decreasing parental task specialization promotes conditional cooperation
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Author
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Abstract
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| How much to invest in parental care and by who remain puzzling questions fomented by a sexual conflict between parents. Negotiation that facilitates coordinated parental behaviour may be key to ease this costly conflict. However, understanding cooperation requires that the temporal and sex-specific variation in parental care, as well as its multivariate nature is considered. Using a biparental bird species and repeated sampling of behavioural activities throughout a major part of reproduction, we show a clear division of tasks between males and females in provisioning, brooding and foraging. Such behavioural specializations fade with increasing nestling age, which stimulates the degree of alternated feeding visits, as a recently promoted form of conditional cooperation. However, such cooperation is thought to benefit offspring development, which is not supported by our data. Thus, from a proximate point of view, conditional cooperation via alternation critically depends on the division of parental tasks, while the ultimate benefits have yet to be shown. |
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Language
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English
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Source (journal)
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Scientific reports. - London, 2011, currens
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Publication
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London
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Nature Publishing Group
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2017
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ISSN
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2045-2322
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DOI
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10.1038/S41598-017-06667-1
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Volume/pages
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7
(2017)
, 10 p.
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Article Reference
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6565
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ISI
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000406364600077
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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