ANT 301 Lecture Notes - Lecture 7: Callitrichidae, Philopatry, Inbreeding Avoidance
Document Summary
Primates invest in reproduction, but not for the sex. If you invest more, you are more choosier. Aggregates: anti predator: true social ability is the norm for primates, other mammals: (dogs, whales, dolphins, lions) Female bonded group: natal group: group born in, philopatry, one sex always disperses: inbreeding avoidance. Same genes (inclusive fitness): alliances are more likely to form with kin. Male bonded group: opposite of female groups, they are more rare, monopolize access to females: form coalitions to females. Social structure describes how many adults (m&f) typically live in a social group. Solitary: individuals who live alone: pair-living: one m, one f + offspring, dispersed: forage separately, sleep together, cohesive: feeding, traveling and resting together. Single male, multi-female: one adult male and multiple females. Unattached males form bachelor groups: multi male and female: multiple adults of both sexes. If mating is more even distributed among males, may help confuse paternity and prevent infanticide.
