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Question
How did the reintroduction of wolves to Yellowstone National Park affect the beaver population?(1 point)
Responses
The wolves decreased the population by eating beavers.
T he wolves decreased the population by eating beavers.
The wolves increased the population by eating a competitor.
T he wolves increased the population by eating a competitor.
The wolves increased the population by eating beavers’ predators.
T he wolves increased the population by eating beavers ’ predators.
The wolves decreased the population by eating beavers’ prey.
T he wolves decreased the population by eating beavers’ prey.
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1 answer
The correct response is:
The wolves increased the population by eating beavers’ predators.
The reintroduction of wolves helped control the populations of elk, which are a primary herbivore affecting the ecosystem. With fewer elk to graze on the willows and other plants that beavers depend on, this indirectly allowed beaver populations to increase as their habitat improved.
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