Sex allocation in a patchy environment: a marginal value theorem.
The ESS sex allocation when male/female fitnesses vary with patch type is a set of values which either equalizes the marginal values of the male/female fitness tradeoffs, or are pure sexes. This is shown for a hermaphrodite; the result is then generalized to other sex allocation cases.
D000818:Animals; D012734:Disorders of Sex Development; D004777:Environment; D005260:Female; D008297:Male; D012641:Selection, Genetic; D012732:Sex Determination Analysis; D012744:Sex Ratio