Sexual selection Flashcards
What is fitness?
Genetic contribution to subsequent generations, can be measured as lifetime of reproductive success
What is sexual selection?
Form in which individuals with certain inherited characters are more likely than other to obtain mates
What is sexual dimorphism?
Marked differences between the two sexes
What is sex role reversal?
Where males are the limiting resource, not females
What is monogamy?
one male and female, low sexual selection opportunities
What is Polygamy?
Male and female have multiple
What is polygyny?
Male has multiple partners
What is polyandry?
Female has multiple
What is intersexual selection?
selection within the same sex competition between males
What is intersexual selection?
Mate choice, females choose mates - depends on males success, epigenetic slection
What is runaway sexual selection?
Positive feedback loop. If trait is preferred by females , both male trait and female preference should increase in frequency
