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  • Modeling Trophic Cascades

    Modeling Trophic Cascades

    Activity

    Students use cards of animal and plant species to model trophic cascades. Species examples are drawn from seven different habitats to test student understanding.

  • Exploring Trophic Cascades

    Exploring Trophic Cascades

    Click & Learn

    This interactive explores examples of what can happen when there are changes in the population size of one species in an ecosystem. How are species at other trophic levels affected? How does the ecosystem change?

  • Creating Chains and Webs to Model Ecological Relationships

    Creating Chains and Webs to Model Ecological Relationships

    Activity

    Students use cards to build model food webs and evaluate how ecological disturbances affect each trophic level. Also available in Spanish.