Obstacles to removing non-native species from a national park

Throughout its history, the National Park Service has sought to eliminate or control non-native species within units. The growing influence of science in natural resource management made this mandate ever more imperative. Removal invasive vegetation proven extremely difficult and may never be complete many parks. Efforts domesticated animals feral wild invaders have met obstacles as well. Channel Islands managed get rid sheep, cattle, pigs, burros, horses, deer, elk, rats, cats, rabbits, turkeys, Argentine ants, European honey bees. In process, park managers had work through overcome eight types impediments well virulent opposition. Lessons learned from these campaigns can inform other facing same problems.