How did the reintroduction of wolves to Yellowstone national park affect the beaver population?
A. The wolves increased the population by eating a competitor
B. The wolves increased the population by eating beavers predators
C. The wolves decreased the population by eating beavers prey
D. The wolves decreased the population by eating beavers
C. The wolves decreased the population by eating beavers prey
The reintroduction of wolves to Yellowstone National Park had a cascading effect on the ecosystem. With the wolves preying on elk and deer, the population of these animals decreased, which in turn allowed the vegetation in the park to recover. However, as the elk and deer populations decreased, the wolves turned to other prey, such as beavers. This led to a decrease in the beaver population in the park.