It fosters an expanded attempt to consider whole, natural systems, how they function and how human activities affect and are affected by them. The Principles of an Ecosystem Approach. Maintaining biodiversity is key. Ecosystems are dynamic. Ecosystems are complex and the parts are interrelated.
Different scales provide different information.
People are part of the ecosystem. We don't know all there is to know about ecesystems and probably never will. We must adapt our manaement as we learn more.