Community Ecology Concepts

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Niche

Back

An organism’s role in its environment (behavior, resources, interactions)

Front

Intraspecific competition occurs among members of the SAME species.

Back

Definition of intraspecific competition.

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Interspecific competition

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Members of different species

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Specialists

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Species with a narrow tolerance or niche.

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Realized niche

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The actual niche a species occupies due to competition.

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Fundamental niche

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An organism's complete niche in the absence of competition.

Front

Ecological principle that states there can never be two species filling the exact same niche at the same time.

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Competitive Exclusion Principle

Front

Ecological principle described by different bird species feeding in different parts of the same tree to reduce competition.

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Resource partitioning

Front

A population of predators is rising in an ecosystem.

Back

It will drop (due to more predators).

Front

Defensive adaptations of plants to avoid herbivory

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Thorns, toxins, unpleasant taste