Lecture 11: Kin and Group Selection Flashcards
1
Q
What is altruism?
A
When an individuals behaviours benefit others in a group rather than their own.
2
Q
What causes individuals sometimes to forego their own fitness in order to help relatives?
A
- Helping at the nest
- Cannibalism (tadpoles prefer non-relatives)
- Eusociality.
3
Q
Define ‘haploidiploid’.
A
A form of sex determination in which fertilised eggs become females, and unfertilised eggs become males.
4
Q
Define ‘eusociality’.
A
- Cooperative brood care
- Overlapping generations
- Division of labour into reproductive and non-reproductive groups.
5
Q
Define ‘group selection’.
A
The differential survival or reproduction of groups and the evolution of behaviours that benefit the group.
