Competition

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When does intraspecific competition occur?
When individuals of the SAME species compete for resources
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When does interspecific competition occur?
When individuals of DIFFERENT species compete for resources
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What is the competitive exclusion principle?
When 2 species live in the same niche and competition occurs, leading to the complete removal of one species.
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Why cant 2 species occupy the same niche indefinitely when resources are limited?
One species will use the resources most effectively and eliminate the other.
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Why is it important to show how a factor (e.g. change in food) affects population size?
An increase in food supply does not mean there will be more individuals, it may just mean there are bigger. So, birth rate and death rate should be included too.
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Other cards in this set

Card 2

Front

When does interspecific competition occur?

Back

When individuals of DIFFERENT species compete for resources

Card 3

Front

What is the competitive exclusion principle?

Back

Preview of the front of card 3

Card 4

Front

Why cant 2 species occupy the same niche indefinitely when resources are limited?

Back

Preview of the front of card 4

Card 5

Front

Why is it important to show how a factor (e.g. change in food) affects population size?

Back

Preview of the front of card 5

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