ANTH 196 Lecture Notes - Lecture 8: Philopatry, Zygosity
Document Summary
Live in groups because: protection from predators, enhanced ability to find & defend food sources. If males & females live in the same group it could lead to inbreeding, which increases homozygosity. Usually males will disperse, & the philopatric sex (usually females) remain. Scramble competition: food patches are low value, large, highly abundant. Contest competition: food patches is clumped, small, & defendable. Female primates: produce large, limited number of egg cells, have long gestation periods, have long periods of lactation. Male primates: produce small, numerous sperm cells, do not gestate young, no not nurse young. Males compete with each other for males: intrasexual selection.
