SEXUAL CONFLICT Flashcards
what does the sexual selection theory help explain
the role of useless traits (mandrills colourful face) in assisting individuals in securing sex
competition methods of males
getting access for mate against others (law of battle)
sperm competition
endurance rivarily
attraction methods of males
instilling female choice
what does the sexual seleciton theory propose are the challenges for males
- competition (male to male competition)
2. attraction (female choice)
why do males + females form friendships in monogamous setting
- secure offspring success (prevent infanticide)
- secure future mating possibility (to mate/attractavility to others)
- increase OWN access to resources (food, sex/pleasure, protection, etc.)
fertilization insurance hypothesis
in polygamous settings; women mate with multiple men to increase access to good sperm and avoid inbreeding
bateman trivers 1972
sexual selection is controlled by relative paternal investment in both sexes to create genetic diversity
aka; MUTUAL CHOICE MECHANISM
nulliparous females
no births
primparous females
one birth
multiparaous females
multiple births
nulligravida
0 pregnancy
primigravida
one prengnancy
multigravida
multiple pregnancies