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Part 1- Guided Activity
Create a bubble map below that includes all of the things that happened in the Yellowstone ecosystem in the absence of wolves. Add as many lines and bubbles from the center bubble as needed.
Part 2- Partner Activity
Using your bubble maps as a guide, create a food chain of the three organisms that are involved in a trophic cascade in Yellowstone National Park.
With the elimination of wolves from the ecosystem, how was the population of plants (producers) indirectly affected?
Part 3- Independent Activity
Graphing Analysis- Trophic Cascade
Examine tropic cascade through graphs from William Ripple and Robert Beschta 2012's study. Complete the graphic analysis by the end of the class period. This is independent work.