1.What would happen to a system if wolves are removed from it?
1. What is the connection/relationship between wolves and moose & elk?
2. How did the removal of wolves from Yellowstone change the behavior of the elk and moose?
3. What is the indirect effect of wolves on the beaver population?
4. Why does this happen?
5. How are birds in the system affected?
6. How does the decline of beavers lead to a decline in aquatic insect populations?
7. What did the extermination of wolves affect the health of rivers?
8. How did the presence of wolf kills (carrion) affect other animals?
9. How did reintroduction of wolves change the bison and elk behavior?
10. How did this affect the vegetation along rivers?
11. How did this affect the beaver population?
12. Why do you think we refer to wolves as keystone species to Yellowstone?
13. What is a keystone species?
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