Download 2.8 Biotic and Abiotic Influences on Ecosystems Limiting Factors • A

2.8 Biotic and Abiotic Influences on Ecosystems
Limiting Factors
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A limiting factor determines which types of organisms and how many
of each species are able to _________________ in an ecosystem.
Abiotic Limiting Factors
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Organisms have a ____________ ___________. This is the range
of abiotic factors the species can endure.
They include factors like:
• _____________
• _____________
• _____________
• _____________
Figure 1: Examples of
Limiting Factors
Biotic Limiting Factors
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Biotic factors often determine how easily a species can ___________ in an ecosystem.
We often look at species interactions:
Carrying Capacity
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As a population grows it requires more food, water
and space
At some point the population will reach a
maximum number of organisms that can be
supported by the ecosystem.
This limit is called the _______________
_______________.
How do Human Actions Affect Carrying Capacity?
Take a few minutes to brainstorm with your partner!
Human Actions
Affecting Carrying
Capacity