chapter 8

Question 1

infanticide

Answer 1

males kill unrelated children

Question 2

is male infanticide more common in species where male-male competition is high or low

Answer 2

high

Question 3

what group is monogamy more common in

Answer 3

smaller diurnal groups, particularly rodents

Question 4

is what constitutes a good mate consistent across all species

Answer 4

no even in the same species it can vary

Question 5

when resources are scarce what mating system is in place

Answer 5

monogamous

Question 6

what mating system do prairie voles have

Answer 6

monogamous once they are in a pair bond, they become more aggressive to other members of the opposite gender

Question 7

female defense polygyny

Answer 7

Because males mate with many females, they defend females from mating attempts by other males

Question 8

lekking

Answer 8

occurs when males set up and defend small arenas called leks—temporary territories specifically for mating—that contain no apparent resources. Females come to these leks and select mates from among the males present. Linked to the sexy son hypothesis. able to gauge genetic kin

Question 9

polygynandry

Answer 9

a type of promiscuous breeding system where several females form pair bonds with several males simultaneously

Question 10

does order of male copulation matter

Answer 10

typically the last mate is the fertilizer

Question 11

why do males in some species not mate for long

Answer 11

so they can use that other time to find other mates

Question 12

are fast sperm more effective or less effective

Answer 12

less effective so there is a trade off