Distribution of matings in a population: monogamy (social vs genetic), polygyny, polyandry, promiscuity. Shaped by operational sex ratio, resource distribution, parental investment (Trivers 1972).
Distribution of matings in a population: monogamy (social vs genetic), polygyny, polyandry, promiscuity. Shaped by operational sex ratio, resource distribution, parental investment (Trivers 1972).