PSYC 3100 Lecture Notes - Lecture 22: Cooperative Breeding, Ryan Gosling, Gabra People

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3100
• Professor: Pat Barclay

Document Summary

Human marital systems polygyny is most common mating system worldwide. All societies have 1) some form of pair-bond which 2) serves to legitimize the sexual relations between them and 3) are preferred for child-rearing. Male perspective: male rs goes up linearly with number of wives (no brainer) Female perspective: become a second wife if that is more beneficial than marrying the available single men. Polygyny threshold: point at which it pays females to mate polygynously. Ex. male #1 in society produces 100units of food (being his first wife you get to share the full. 100units) but would rather be second wife to someone who produces 250 units (125 for each wife) but if the second wife were to get less than 100 units, being to first wife of male 1 would pay-off more. Variance in ses/wealth and variance in health/pathogeny.