Science · 1978 · 917 citations · 4 references
Life SciencesBiologyZoologyEvolutionary EcologyMammalogySexual SelectionFemale ChoiceIntrasexual CompetitionMate ChoicePrimate EvolutionReproductive EcologySex RatioFemale PreferenceField ObservationsLimiting ResourcesSecondary Sex RatioSex Ratio DifferentialsSex Ratio DynamicsSex Ratio EvolutionSpatial Resource Competition
Competition between female kin for local limiting resources may explain a male-biased secondary sex ratio in the prosimian Galago crassicaudatus. Data demonstrating the skewed sex ratio, a brief summary of field observations on the species, and a simple mathematical statement of the hypothesis are presented. Local resource competition may influence sex ratio in other mammals.
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Natural Selection of Parental Ability to Vary the Sex Ratio of Offspring
Robert Trivers, Dan E. Willard · Science · 1973 · 3.9K citations
W D Hamilton · Science · 1967 · 3.7K citations