Post-copulation SS: Albo et al 2013

Question 1

paper:

Answer 1

Sperm storage mediated by cryptic female choice for nuptial gifts

Question 2

specimen

Answer 2

polyandrous spider (Pisaura mirabilis)

Question 3

Males offer females:

Answer 3

insect prey wrapped in white silk, females feed during copulation

Question 4

copulation duration was

Answer 4

controlled

Question 5

females benefits from storing sperm

Answer 5

gain indirect benefits through preferential storage of sperm from gift-giving males if the gift signals male quality

Question 6

egg hatching success and gift giving

Answer 6

gift giving males = more stored sperm = 17% higher egg-hatching success

Question 7

nuptial gift as a male is under ___ SS by females

Answer 7

positive

-through cryptic sperm storage

Question 8

gift facilities

Answer 8

longer copulations and increased sperm transfer

Question 9

nuptial gifts may be ___ signals of male quality

Answer 9

honest

= if traits are heritable then female eowuld benefit biasing young to those males

Question 10

cryptic female choice:

Answer 10

genital tract, female has control

Question 11

___ have control of initiation and termination of copulation

Answer 11

females

Question 12

females store sperm =

Answer 12

spermatheca

Question 13

males penis

Answer 13

pedipalps

Question 14

method: 3 treatments

Answer 14

• NG = no gift copulated without interruption
• GT = nuptial gift, copulation terminated at ten mins
• G = gift, copulation with no interruption

Question 15

sperm number

Answer 15

G
GT
NG

Question 16

hatching success

Answer 16

G
GT
NG

Question 17

relationship between copulation duration and hatching success

Answer 17

positive

Question 18

____ males had greatest mating sucess

Answer 18

satiated males in good condition

Question 19

females gain indirect benefits through

Answer 19

fisherman processes’ ‘sexy sons’ or elevated fitness of offspring