What happened when the Wolves left Yellowstone?
Considering this, how did the wolves affect Yellowstone?
According to Yellowstone National Park, here are a few ways the wolves have reshaped the park: Deer: It's true that wolves kill deer, diminishing their population, but wolves also change the deer's behavior. When threatened by wolves, deer don't graze as much and move around more, aerating the soil.
Correspondingly, why were wolves killed in Yellowstone?
The original wild wolves in Yellowstone were deliberately killed by the federal government during the period when it was government policy to exterminate the wolf everywhere, even inside national parks.
(2012) explains that the reintroduced wolves prey primarily on the elk population, and often follow elk migration patterns. Wolf hunting is detrimental to the environment that they were placed into, since the elk populations will not be effectively controlled in the absence of an active wolf population.