PSYC 3100 Lecture Notes - Lecture 19: Game Theory, Polygynandry, Inclusive Fitness
1 Nov 2016
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What are the benefits for social species: alloparental care, reduction of the risk of predation, shared foraging, territorial protection. How did primate sociality evolve: ecology: fruit rodents with lots of fruit in their diet were social, rodents without, not so much, predation: predation increased with transition from nocturnal to diurnal foraging. Difficult to predict future behaviour on the small information available: kinship: social organization in non-human primates is based on kinship. Female kin bonding: related females group together to share info about food sources. Females bond to increase success at obtaining resources, in the absence of male pi. This occurs when males leave group for breeding (hopefully( Male kin bonding: related males together to defend unrelated females (prevent incest) from rival groups. This occurs in species where females leave a group for breeding. > this is all compatible with kin selection and inclusive fitness: cooperation is driven by genetic. Cooperation in the essence of non-kin based sociality.
