Chapter 8

Question 1

monogamy

Answer 1

a mating system in which a male and female mate only with one another during a given breeding season

Question 2

polygamy

Answer 2

a mating system in which either males or females have multiple mates during a given breeding season

Question 3

polygyny

Answer 3

a mating system wherein males mate with more than one female per breeding season

Question 4

polyandry

Answer 4

a mating system wherein females mate with more than one male per breeding season

Question 5

female defense polygyny

Answer 5

a mating system in which males aggressively guard females that are found in spatial clusters, obtaining sole reproductive access to such harems of females

Question 6

lekking

Answer 6

areas in which groups of males set up and defend small, temporary territorial patches and in which they display to females, specifically to attract females to mate with them

Question 7

sexy son hypothesis

Answer 7

a hypothesis that females select among males based on genetic traits in the males that will lead to the production of sons that are attractive to the opposite sex

Question 8

promiscuity

Answer 8

a type of mating system in which both polyandry and polygyny are occurring. IN one form of promiscuity, both males and females mate with many others and no pair bonds are formed. IN the second type, polygynandry, several males form pair bonds with several females simultaneously.

Question 9

polygynandry

Answer 9

a mating system wherein several males form pair bonds with several females simultaneously

Question 10

polygyny threshold model

Answer 10

a model developed to predict the conditions under which a mating system will move from monogamy to polygyny

Question 11

sperm competition

Answer 11

a form of sexual selection that occurs directly between sperm after insemination