Mating Systems

Question 1

What mating systems are there?

Answer 1

Promiscuity (MM-MF)
Monogamy
Polygamy (Plygyny, Polyandry)

Question 2

In which mating systems can infanticide evolve?

Answer 2

Monogamy => if competition for wealthy men
In societies where male mortality rate is high
In MM-MF if not enough paternity dilution

Question 3

What are counterstrategies against infanticide?

Answer 3

Paternity dilution (for less dominant males => multiple fathers) and paternity concentration (for dominant males)

Question 4

How can females influence sex ratios?

Answer 4

Less dominant females produce more female offspring, as it secures reproduction, a less dominant male likely won’t be able to reproduce, for females it’s about the same probability

Question 5

Dowry

Answer 5

In polyandrous and monogamous societies?

Question 6

Bridewealth

Answer 6

Polygyny