Topic 8a - two way species interactions - competition (antagonistic)

Question 1

Coexistence

Answer 1

the state of two or more species being found in the same place at the same time

Question 2

Competitive exclusion principle

Answer 2

that two species with identical niches cannot coexist indefinitely

Question 3

exploitative competition

Answer 3

use of a shared and limiting resource by two or more individuals.

Question 4

“Ghost of Competition Past”

Answer 4

Used to describe one possible reason for observed differentiations in niches. Competing species may be less fit than a species which avoids competing because it occupies a fundamental niche which does not overlap theirs

Question 5

interference competition

Answer 5

form of competition involving direct antagonistic interactions between individuals

Question 6

inter-specific competition

Answer 6

competition between individuals of different species

Question 7

intra-specific competition

Answer 7

competition between individuals of the same species

Question 8

resource limitation

Answer 8

limitation of population growth by resource availability

Question 9

resource partitioning

Answer 9

the division of resources to avoid interspecific competition for limited resources in an ecosystem

Question 10

self thinning

Answer 10

reduction in population density as a stand of plants increase in bio mass, due to intraspecific competition