Will give brainlist :)

in the western U. S., ranchers aggressively killed wolves because they posed a
threat to their cattle. As the wolf population declined. the deer population
began increasing. As a result, the surrounding forest ecosystems
experienced increasing damage. The large number of deer ravaged
vegetation and destroyed young trees. The entire ecosystem became
degraded until wolves became protected when they were determined to be
an endangered species. Based on this information, what can you infer about
the role of the wolves in this ecosystem?