The reintroduction of wolves increased the genetic diversity of woody plant species by controlling elk populations. This situation is known as a trophic cascade.
Trophic cascade refers to the process where the addition of top predators in a given ecosystem triggers a series of modifications in the populations located at lower trophic levels.
The wolves are top predators whose reintroduction in the Yellowstone park increased the genetic diversity of plant species by controlling elk populations.
This trophic cascade also helps to increase the diversity of birds that eat plants.
Learn more about trophic cascade here:
https://brainly.com/question/13942843
