Define the mission of the National Park Service. Name three national park areas and their significant features. Explain how Shenandoah protects plants and animals, specifically the Shenandoah salamander. Identify three environmental/human influences that can impact the ecosystem of the Shenandoah salamander. Describe potential consequences to the Shenandoah salamander's survival. Explain three ways that individuals can help reduce the impact of human-accelerated climate change. Background The mission of the National Park Service and Shenandoah National Park is to preserve and protect the natur Duration: 60 Minutes.