1. List 4 causes of biodiversity loss and provide an in-depth discussion of the effects. part 2 . Why were wolves eradicated from YNP? 2. What were the effects of the removal of the wolves on the ecosystem? Provide examples. 3. When and why were the wolves reintroduced to YNP? 4. What has been the impact of the reintroduction of the wolves on the ecosystem? What changes have been observed on species interactions? Provide examples. 5. The introduction of the wolves has been successful to both the environment and the local economy. However, there is still controversy over the reintroduction of the wolves in YNP. Why is there controversy? What are some of the arguments against having the wolves in YNP?.