PSYCH 3M03 Lecture Notes - Lecture 7: Cuckold, Egg Cell, Promiscuity
24 Dec 2015
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Pheromones, tactile stimuli, visual stimuli all input into sexual arousal. Sexual behaviour is largely innate once initiated, but can be modulated by learning o. Limits to age of fertility (constrained by puberty and menopause) Generally more cautious, as mating in wrong conditions can be costly however, this depends on species and circumstances. Therefore the goal is to inseminate as many females as possible* Multiple matings propagate genes (sets the stage for . ) Sexual competition is the root of sexual dimorphism and the cause of aggression with other males. Generally more cautious, as mating in wrong conditions can be costly. This depends on species and circumstances >> psychologically females are more cautious about undertaking reproduction o o. Paternity confidence is an issue (risk of cuckoldry) >> females know for sure the offspring is theirs but males do not have that certainty. K-selected species: small number of offspring, heavy investment, prolonged juvenile period. Males vary more in reproductive success than do females.
