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

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

Document Summary

Genes that favour reproductive success in the organism will be spread through the population at the expense of the unsuccessful genes (the core of natural and sexual selection) Genes competing with each other leave more copies of itself than other genes. Sexual selection involves the competition between the species, competition within the same sex (intrasexual competition) Intersexual competition involves opposite gender competition between males and females. The resource is parental care and provision in which individuals compete over (of both genders) As a result of competition, there is a huge variety in mating systems in animals (many different types of mating systems) There are sometimes different populations of species due to the different mating systems. Question of the day: how do animals choose their mate. Monogamy: exclusive single male and single female (lifetime or one bout of reproduction or reproductive season) Polygyny: one male mates with many females. Promiscuity/polygamy: males and females mate with each other interchangeably.