Given what we know about the relationships present in this ecosystem, we can confirm that the reintroduction of grey wolves, while causing the population of elk to decrease, will also permit the population of aspen trees and similar plants to increase.
The Elk is one of the primary consumers of the aspen tree.
When wolves were removed from the park, their absence caused a sharp increase in the elk population.
This increase in turn caused the elks to consume much more aspen trees and reduce their availability greatly.
The reintroduction of wolves will control the elk population and allow the aspen trees to regrow.
Therefore, given the predator and prey relationships present in the park, we can confirm that with the reintroduction of wolves to the park, we can expect the reduction in elk to allow for an increase in aspen tree populations.
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