Psychology 3221F/G Lecture Notes - Lecture 8: Prairie Vole, Meadow Vole, Vasopressin

• School: Western University
• Department: Psychology
• Course: Psychology 3221F/G
• Professor: David Sherry

Document Summary

Mating systems: monogamy- single m and f mate w each other and mate exclusively, lifetime/ one bout reproduction (common), usually one season, polygyny- one m w many f, polyandry- one f w many m, promiscuity/ polygamy. Polygyny vs polyandry: polygyny mating system which variance m rep succ greater variance f reprod succ (greek- gym= woman/ wife, polyandry mating system variance f reprod succ is greater than variance m reproductive succ (greek- andros= man/ husband) Intra- m compete w each other and best able chase off m will get mate: inter- epigamic= between, intra- within. Questions: why do some f mat polygynously, why should f mate . Covert polyandry (extra-pair copulations: social v genetic paternity, extra-pairs copulations (mating others not social mate) may provide, good genes, compatible genes- good combo w genetic info she has, material bens- parental care ex: feeding, protecting.