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Chapter 17: Symbioses

Last updated

Nov 6, 2022
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- 16.5: References and Attributions
- 17.1: Introduction to Symbioses

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Learning Objectives

Introduce and explore the types of mutualisms, parasitisms, commensalisms
Explore theories that explain the evolution of mutualisms
Discuss hypotheses regarding the maintenance of mutualistic relationships

Video

Summary

A commensal relationship occurs when one species benefits from a close prolonged interaction, while the other neither benefits nor is harmed. A mutualism occurs when two species benefit from their interaction, and can be generalized into three types: resource-resource, service-resource, and service-service. Many mutualisms are thought to have evolved from antagonistic interactions, such as parasite-host relationships.

Learning Objectives

Video

Summary

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