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Parental investment, sexual selection and sex ratios

Kokko, Hanna; Jennions, Michael


Conventional sex roles imply caring females and competitive males. The evolution of sex role divergence is widely attributed to anisogamy initiating a self-reinforcing process. The initial asymmetry in pre-mating parental investment (eggs vs. sperm) is assumed to promote even greater divergence in post-mating parental investment (parental care). But do we really understand the process? Trivers [Sexual Selection and the Descent of Man 1871-1971 (1972), Aldine Press, Chicago] introduced two...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Journal of Evolutionary Biology
DOI: 10.1111/j.1420-9101.2008.01540.x


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