Final answer:
The reintroduction of gray wolves to Yellowstone Park had a positive impact on the food web and ecosystem dynamics. The wolves altered the grazing behavior of elk, allowing vegetation to regrow and increasing biodiversity. They also suppressed coyote populations and provided resources for other species.
Step-by-step explanation:
Reintroducing the gray wolf to Yellowstone National Park had a significant impact on the park's food web and ecosystem dynamics. By preying on elk, the wolves altered the behavior of the elk, causing them to spend less time browsing near streambanks. This allowed important vegetation to regrow, which had a positive impact on the overall ecosystem. The wolves, as top predators, also suppressed the populations of coyotes and provided more resources for other species, leading to an increase in biodiversity.