Ecosystems can be artificial.Logical formLearned from18 sentences. An (ecosystem management) can be effective.Logical formLearned from17 sentences. A member may pertain-to an ecosystem.Logical formLearned from17 sentences. A value may pertain-to an ecosystem.Logical formLearned from17 sentences. Marine ecosystems may undergo conservation.Logical formLearned from17 sentences. An impact can be on marine ecosystems.Logical formLearned from17 sentences. Payment can be for (ecosystem services).Logical formLearned from17 sentences. An ecosystem can be complex.Logical formLearned from17 sentences. Persons may look at ecosystems.Logical formLearned from17 sentences. (Ecosystem services) can be vital.Logical formLearned from17 sentences. Species can be in ecosystems.Logical formLearned from17 sentences. Ecosystems can be indigenous.Logical formLearned from17 sentences. An ecosystem can be protected.Logical formLearned from17 sentences. Ecosystems can be around a globe.Logical formLearned from17 sentences. Studies can be constituted-of-or-filled-with ecosystems.Logical formLearned from17 sentences.