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Sex allocation, juvenile mortality and the costs imposed by offspring on parents and siblings

Kahn, Andrew; Jennions, MIchael D; Kokko, Hanna


Generally, sex-specific mortality is not expected to affect optimal patterns of sex allocation. Several authors have, however, made verbal arguments that this is not true if juvenile mortality is sex specific during the period of parental care. Here, we provide formal mathematical models exploring the effect of such mortality on optimal sex allocation. We confirm the prediction that biased production of the sex with higher mortality during care is favoured. Crucially, however, this is only true...[Show more]

CollectionsANU Research Publications
Date published: 2015-02
Type: Journal article
Source: Journal of Evolutionary Biology
DOI: 10.1111/jeb.12578


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