ANT331H5 Lecture Notes - Lecture 4: Congo River, Estrous Cycle, Sexual Coercion
Document Summary
May variables related to socioecological model o o o o o. Lemurs and lorises: diversity of mating systems, not very much sexual dimorphism. Females are the dominant sex o: most primitive of the primates. Catarrhines: old world monkeys, apes and humans, diversity in mating systems, macaques. Butt pads swell and change colour when the female is ovulating: one male polygyny o. Primary mode of locomotion swinging through trees on their arms: gibbons and siamangs, monogamous. Same body size between adult males and females. Offspring can be fathered by off-resident males o. Greatest sexual dimorphism of body size of all primates. Females prefer lower frequency which means dominant male. Females that are pregnant or not ovulating seen going towards these males. Disperse to acquire enough nutrients for females and their offspring. Has exclusive access to a harem of females. When sons reach sexual maturity, will either challenge the dominant or will migrate out of the group.
