BOHA - 8 Flashcards

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

what are 4 costs of group living?

A

1) sharing resources
2) parasites/disease
3) predation risk - more likely to be seen
4) more competition for resources

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

what are 4 benefits of group living?

A

1) predation - safety in numbers
2) easier to find a mate
3) communal care of offspring
4) improved foraging efficiency

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

whats an example of the cost of group living in cliff swallows?

A
  • they suffer from blood sucking bug

- chicks grow slower with this parasite

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

what is an example of a benefit of group living in guillemots?

A
  • they breed in dense groups

- helps to protect they chicks from predation by large sea birds as they live on open rocks

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

what is an example of an atruistic act in ground squirrels?

A
  • they give alarm calls when they see predators

- alarm calling is risky

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

what type of selection are altruistic and selfish acts?

A
selfish = direct selection 
altruistic = indirect selection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

who is responsible for the concept of kin selection?

A

william hamilton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is kin selection?

A

natural selection in which an apparently disadvantageous characteristic (especially altruistic behaviour) increases in the population due to increased survival of individuals genetically related to those possessing the characteristic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what type of selection is a behavioural act favoured by selection that involves parents and offspring?

A

individual/direct selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what type of selection is a behavioural act favoured due to its beneficial effect on non-descendent kin?

A

kin/indirect selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is inclusive fitness?

A

an individuals total contribution of genes to the next generation - those conferred both directly and indirectly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is the equation which defines the condition when altruistic behaviour evolves?

A

rB>C

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