1) Why do males often compete for access to females more th - PowerPoint Presentation

Slide1

1) Why do males often compete for access to females more than females compete for access to males

A) males invest less in reproduction

B) access to females limits male reproduction, but not the reverse

C) both of the aboveSlide2

2) Fisherian runawayA) means that selection favors faster runningB) depends on a genetic correlation between preference and trait genes

C) is a “good genes” explanation for why females have mating preferences

D) means that daughters express the same mating preferences as their brothers

E) applies only to birdsSlide3

3) “good genes”A) is shorthand for the selection on female mating preferences that result in attractive sons, but not higher viability

B) is the idea that male display traits reveal something about male genetic quality

C) has very little data to support itSlide4

4) Sexual selection in plantsA) makes basically the same predictions as in animalsB) predicts floral investment in displays is primarily repaid via export of pollen

C) depends upon animal pollinators, not wind pollinators

D) all of the aboveSlide5

5) Sperm competitionA) only occurs in species in which females mate with multiple malesB) favors infanticideC) can favor traits such as large testis, large numbers of sperm, and modifications of male genitalia

D) all of the above

E) A and C above, but not B