Extra-pair parentage and personality in a cooperatively breeding bird

Behavioral Ecology and Sociobiology
Hannah A EdwardsTerry Burke

Abstract

Why so much variation in extra-pair parentage occurs within and among populations remains unclear. Often the fitness costs and benefits of extra-pair parentage are hypothesised to explain its occurrence; therefore, linking extra-pair parentage with traits such as personality (behavioural traits that can be heritable and affect reproductive behaviour) may help our understanding. Here, we investigate whether reproductive outcomes and success are associated with exploratory behaviour in a natural population of cooperatively breeding Seychelles warblers (Acrocephalus sechellensis) on Cousin Island. Exploratory behaviour correlates positively with traits such as risk-taking behaviour and activity in other wild bird species and might promote extra-pair mating by increasing the rate at which potential extra-pair partners are encountered. We therefore predicted that fast-exploring individuals would have more extra-pair offspring. There is also a potential trade-off between pursuing extra-pair parentage and mate guarding in males. We therefore also predicted that fast-exploring males would be more likely to pursue extra-pair parentage and that this would increase the propensity of their mate to gain extra-pair parentage. We found that n...Continue Reading

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Citations

Jul 25, 2020·Molecular Ecology·Sara Raj PantDavid S Richardson
Oct 4, 2019·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Sara Raj PantDavid S Richardson
Aug 17, 2019·Royal Society Open Science·Clelia GaspariniGiovanni Polverino
Dec 8, 2020·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Kristina B BeckBart Kempenaers
Jul 28, 2021·Journal of Evolutionary Biology·Benedikt HoltmannShinichi Nakagawa
Dec 4, 2021·Biological Reviews of the Cambridge Philosophical Society·Elène Haave-AudetKimberley J Mathot

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