Intersexual antagonistic coevolution in D. melanogaster Flashcards
reference
Holland and Rice (1999)
Intersexual antagonistic coevolution is..
the evolutionary arms race between the sexes
Although sexual selection can provide benefits to both sexes it can also be costly because of expanded opportunities for … …
intersexual conflict
This study looked into the promiscuous species … …
Drosophila melanogaster
In two replicate populations, … … was removed through enforced … … with … mate assignment, or retained in … controls
sexual selection, monogamous mating, random, promiscuous
Monogamous mating constrains the reproductive success of mates to be …, thereby converting prior conflicts between mates into opportunities for …
identical, mutualism
Random mate assignment removes the opportunities for females to … … … in their mate
choose beneficial qualities
The mating treatments were maintained for … generations
47
In the monogamous populations, males evolved to be less … to their mates, and females evolved to be less … to male-induced …
harmful (seminal fluid toxicity), resistant, harm
Monogamous populations also evolved a greater net … … than their promiscuous controls. These results indicate a potentially widespread … of sexual selection caused by … inherent to promiscuity
reproductive rate, cost, conflicts
Survival of test females was greater when mated once to … males than … males
monogamy, control
Monogamy males … less frequently than control males
courted
… survival did not differ between treatments
male
Development was significantly … in monogamy populations
faster
This study supports the idea that that … … arises from sexual selection
intersexual conflict
