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Trophic Cascades, Population Structure, and the Role of Keystone Species

By Merrilee Anderson1, J. Phil Gibson2

1. Mount Aloysius College 2. University of Oklahoma

In this activity, students will use data from natural parks to examine terrestrial trophic cascades. Concepts will then be applied to examples in freshwater ecosystems.

Listed in Teaching Materials | resource by group Plants by the Numbers

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Version 1.0.0 - published on 21 Jun 2018 doi:10.25334/Q4PM61 - cite this

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms

Adapted from: Terrestrial Trophic Cascades & Population Structure v 1.0


This resource is a case study learning activity to accompany the HHMI Video Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades.

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Despite the focus on terrestrial trophic cascades, the material was easy to apply to the water ecology course I utilized it in.  Students were then asked to apply the concepts to algae we were learning to identify and their predators in freshwater systems.

Plants by the Numbers

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