Types Of Selection Flashcards
(11 cards)
1
Q
What is fitness
A
The survival + reproduction of an individual
2
Q
What is directional selection
A
Favours one extreme value
3
Q
What is stabilizing selection
A
Favours average values
4
Q
What is disruptive selection
A
Favours both extreme values
5
Q
What does intra-sexually mean
A
Competition between members of the same sex
6
Q
What does inter sexually mean
A
Mate choice
7
Q
What does pre-copulatory mean
A
Acquiring mating opportunities
8
Q
What does post-copulatory mean
A
Events that occur during + after mating
9
Q
What are 3 conditions for selection
A
- variation in a trait
- heritability of a trait
- relative difference in fitness conferred by the trait
10
Q
What are the direct benefits of sexual selection
A
- honest signals of parenting qualities
11
Q
What are the indirect benefits of sexual selection
A
sexy sons - the preference for male expressed by mother will be the trait that the son expresses = increased reproductivity success
