Sub 7: Competition

Question 1

when does competition occur?

Answer 1

when the two organisms attempt to utilise the same resource

Question 2

what type of interaction is competition?

Answer 2

a negative/negative interaction as it is detrimental to both organisms - any positive outcome for the winner would have been even greater without the competition

Question 3

what is exploitation competition?

Answer 3

competitors do not interact directly - one individual uses the resource before the other has the opportunity

Question 4

give an example of exploitation competition

Answer 4

grey squirrels eat under ripe fruit cause red need to wait tip ripe

Question 5

what is interference competition?

Answer 5

when the behaviour of one competitor prevents the other from accessing the resource

Question 6

what is fundamental niche?

Answer 6

set of resources an organism is capable of using in the absence of competition

Question 7

what is a realised niche?

Answer 7

set of resources a species can actually make use of in an ecosystem in presence of competition

Question 8

what is competitive exclusion principle?

Answer 8

when two different species have the same realised niche and so cannot coexist in a community for a length of time - one will die out

Question 9

what is resource partitioning?

Answer 9

overlapping niches, dividing up the resources in an ecosystem through species specialisation and adaptation to exploit different components of the ecosystems resources

Question 10

name examples of exotic species?

Answer 10

rhododendron, mink, ruddy duck