Evolution of eusocial behavior: offspring choice or parental parasitism?
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Animals↗
Biomedical subjects
E L Charnov
Publications and source records attributed to E L Charnov.
Facultative sex ratios and population dynamics.
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Animals↗
An elementary treatment of the genetical theory of kin-selection.
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Biological Evolution↗
When is sex environmentally determined?
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Animals↗
Changes in the heterogametic mechanism of sex determination.
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Animals↗
Optimal foraging, the marginal value theorem.
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Animals↗
Sex ratio, sex change, and natural selection.
We describe the analogy between the theory of natural selection on sex ratio in newborn gonochores (which will not change sex), and on the age of sex change in sequential hermaphrodites (which are all born into one sex and change to the other later on). We also discuss the conditions under which natural selection favors sequential hermaphrodites over gonochores and vice versa. We show that, in a nearly stable population of nearly constant age composition, selection favors a rare mutant if it increases the prospective reproduction of its newborn bearers that are (or while they are) members of one sex by a percentage exceeding the percentage loss to the other sex.
Aging↗