Evolutionary explanations of partner preferences Flashcards
(11 cards)
How do evolutionary explanations suggest reproductive behaviour is influenced
Through the principles of sexual selection - individuals are driven to select mates with the best genetic advantages
What is meant by anisogamy?
Refers to differences in male and female sex cells (Gametes) . Male gametes are mass produced and quickly replenished, and female gametes are produced in limited numbers during specific time frames
What is inter - sexual selection?
Refers to mate choice based on desirable characteristics. Since females invest more in reproduction, they tend to value quality over quantity
Examples of traits preferred by females
Genetic fitness
resource availability
commitment and protection
What did buss (1989) find?
Studied over 10k adults in 33 countries, found women valued resource based traits such as financial prospects, whilst men valued youth and attractiveness
What is intra sexual selection?
Competition among individuals of the same sex for mates. Since males have lower parental investment, they value quantity over quality
Which traits does intra sexual selection develop?
Physical strength
Dominance and status
Aggression and competitiveness
What did clark and hatfield’s research find?
Conducted a study where men and women were approached for casual sex. 75% of men agreed compared to 0% of women
strengths of evolutionary explanations
empirical support - clark + hatfield
cultural validity - buss’ study
biological basis - explains universal patterns
limitations of evolutionary explanations
reductionist theory
methodological issues in buss’ study - desirability and cultural bias
alpha bias - ignores shared preferences e.g loyalty
relevant issues and debates
social sensitivity - reinforces stereotypes around promiscuity
evolutionary reductionism
