Evolutionary explanations for partner preferences Flashcards
(45 cards)
What does Darwin’s evolutionary theory state?
Partner preference is driven by sexual selection which means males and females choose their partners to maximise reproductive success
What is partner preference driven by?
Sexual Selection
What is sexual selection
Males and Female choose their partners to maximise reproductive success
Define anisogamy
The differences in male and female sex cells
Males and females are said to have different partner preferences and human reproductive behavior due to …
Anisogamy
Male gametes are…
Created in vast numbers, small, mobile and don’t require a lot of energy to produce and are continuously created
Female gametes are…
Relatively large, produced once a month for a limited number of fertile years and require a significant amount of energy
Define inter sexual selection
Between the sexes- strategies that males use to select females OR females use to select males
What is INTER sexual
Between the sexes
Define intra Sexual Selection
Within each sex- such as strategies between males to be the one selected by the female
What is INTRA sexual
Within each sex
What can males not be sure of?
Paternity
How long do males remain fertile for?
Throughout their lives
How much do males invest biologically compared to females?
Males invest less biologically compared to females
What kind of mating strategies do males prefer?
Short term mating strategies with multiple females
Males are more likely to be…
Promiscuous
What kind of females do males seek?
Young, attractive, fertile females
Why do males seek high quality females?
To ensure offspring has greater survival chances
Who are males in competition with and why?
Males are in competition with other males to access high quality females
What may males show towards other males
Physical aggression
How much do females invest biologically compared to males?
Females invest more biologically than males
How long are females’ fertile for?
An average of 30 years
What can females be sure of?
Maternity
Females are more likely to engage in?
Long-term mating