3.1 Community

Question 1

What is community?

Answer 1

All the organisms that live together in a place

Question 2

What is community ecology?

Answer 2

Study of all interactions of different populations in an environment

Question 3

What is a niche?

Answer 3

Biotic and abiotic resources a species uses and what, when, where & how it uses them

Question 4

What is a fundamental niche?

Answer 4

Potential use of resources

Question 5

What is a realized niche?

Answer 5

Resources that are actually used

Question 6

What is niche partitioning?

Answer 6

When species change their niche to minimize competition

Question 7

What happens when the niches of 2 species overlap?

Answer 7

There is a decrease in fitness and increase in competition for both species

Question 8

What does Gause’s competition exclusion principle state?

Answer 8

No two similar species can occupy the same niche at the same time

Question 9

What are the types of interspecific interactions?

Answer 9

Competition, mutualism, commensalism, predatory, herbivory, parasitism

Question 10

What are the effects that each type of interspecific interactions have on species?

Answer 10

Competition = - / -
Mutualism = +/+
Commensalism= +/0
Predatory/herbivory/parasitism = +/-

Question 11

What is symbiosis?

Answer 11

twk or more species share a close physical relationship

Question 12

What is endosymbiosis?

Answer 12

one or more species lives inside another species - cells inside cells.