Lecture 19: Units & Kin Selection Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Understand the difference between group selection and individual selection.

A

Group selection: populations comprised of individuals who forgo personal fitness for stability of the group so that the group will out compete other populations.

Individual selection: cheaters will win in an altruistic society

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Define alturism

A

behavior of an animal that benefits another at its own expense.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is individual fitness?

A

Genetic contribution to future generation, direct descendants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is inclusive fitness

A

Genetic contribution to future generation, individual fitness + fitness of your relatives (kin), kin fitness scaled by degree of relatedness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Understand siblicide and when it is beneficial.

A

if the benefit (of sharing) x r > cost (kill-share), don’t kill

if Br<C, kill

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define eusociality

A

the highest level of organization of animal sociality, is defined by the following characteristics: cooperative brood care, overlapping generations within a colony of adults, and a division of labour into reproductive and non-reproductive groups.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly