Types of Ecological Relationships

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Competition

Back

An interaction between organisms or species in which both require a resource that is in limited supply.

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Symbiotic relationship

Back

A close relationship between species.

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Mutualism

Back

A relationship where both species benefit.

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Commensalism

Back

A relationship where one species benefits and the other is unaffected.

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Parasitism

Back

A relationship where one species benefits by harming the other.

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Host

Back

The organism that is providing resources for the parasite and being harmed or killed in the process.

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Predation

Back

When one organism kills and eats another organism.

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Predator

Back

An animal that lives by killing and eating other animals.

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Prey

Back

An animal that is caught and killed by another for food.

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Niche

Back

The role an organism plays in a community.