Chapter 7 Primate Sociality

Question 1

One Male Multifemale

Answer 1

One reproductive-age male, several mature females, and immature offspring. Gorillas, orangutans, some howler monkeys, some langurs, old world monkeys
Polygynous

Question 2

One female multimale

Answer 2

One reproductive-age female, several mature males, and immature offspring. Only some new world monkeys.
Polyandrous

Question 3

Multimale multifemale

Answer 3

Many adults, male and female, and offspring. Both sexes mate promiscuously. Many old world monkeys, a few new world monkeys, and chimpanzees

Question 4

All male

Answer 4

Baboons
Males form at least temporary groups, typically before joining or forming groups that include males and females. Commonly exists together with multimale multifemale groups.

Question 5

One male, one female

Answer 5

Reproductive success tied to the other. Gibbons, siamangs.

Question 6

Solitary

Answer 6

Interactions between adult females and males occurs only for sexual activity. Orangutans and a few strepsirhines.

Question 7

Sexual selection

Answer 7

The frequency of traits that change due to those traits’ attractiveness to members of the opposite sex.

Question 8

Male Reproductive Strategy

Physical Competition for access to females

Answer 8

Outcome: Selection for large body size and for large canines.

Question 9

Male Reproductive Strategy

Sometimes killing of nursing young

Answer 9

Outcome: Suppressed lactation, resumption of ovulation, and receptiveness to new male partner.

Question 10

Female Reproductive Strategy

Acquisition of resources for raising young, in competition with other females

Answer 10

Outcome: Higher-ranked females provide more resources than lower-ranked females do.