Illustrating Species Importance
Answer the following series of questions related to Biodiversity that specifically look at a Trophic Cascade and Keystone Species.
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1. Keystone Species
Watch the Video "How Wolves Change Rivers" by Sustainable human (https://www.youtube.com/watch?v=ysa5OBhXz-Q) and answer the following series of questions.
a. Based on the movie come up with a general definition for a Keystone Species *
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b. Explain how the wolf is used as an example of a Keystone species and how its reintroduction to Yellowstone had effects as such. *
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2. Trophic Cascade
Watch the videos "How Whales Change Climate" by Sustainable Human (https://www.youtube.com/watch?v=M18HxXve3CM) and "US Mexico Border wall" by NatGeo (https://video.nationalgeographic.com/video/magazine/focal-point/170905-ngm-focal-point-border-wall-animals-risk) and answer the following series of questions.
a. Based on the movie come up with a general definition for a trophic cascade. *
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b. Explain how whales can create a natural trophic cascade using the example from "How Whales Change Climate" *
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c. Explain how humans can create a trophic cascade using the example from "US-Mexico Border Wall" *
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