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Wolves are often credited with changing the flow of the river at Yellowstone National Park. As a dominant predator and by helping to regulate prey populations, they help other species of plants and animals flourish. In a way, wolves create a domino effect, impacting songbirds, beavers, fish, and butterflies.

Wolves would be an example of a(n):
A. keystone species
B. indicator species
C. threatened species
D. endangered species

Answer :

Final answer:

Wolves in Yellowstone National Park are a keystone species because their presence has a significant positive impact on the ecosystem, promoting biodiversity by influencing the behavior of other species.

Explanation:

The wolves introduced into Yellowstone National Park are a keystone species because of their significant role in influencing the park's ecosystem structure and processes. Wolves alter the behavior of elk, reducing their grazing on young willow and cottonwood trees along riverbeds. This change allows plant life to thrive, reducing soil erosion and improving conditions for other species, such as fish and beavers. The presence of wolves has numerous downstream effects that benefit biodiversity, exemplifying the impact of a keystone species. The reintroduction of wolves is a prime example of how restoring a keystone species can dramatically enhance ecological balance and biodiversity.

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