A dependence can be on ecosystems.Logical formLearned from2 sentences. Ecosystems can be for species.Logical formLearned from2 sentences. Some alien invaders may affect aquatic ecosystems.Logical formLearned from2 sentences. A threat can be on an ecosystem.Logical formLearned from2 sentences. A (shelter ecosystem) can be in (desert areas).Logical formLearned from2 sentences. Some developing countries may face a dilemma of balancing issues of preserving ecosystems.Logical formLearned from2 sentences. An ecosystem may support life.Logical formLearned from2 sentences. A part can be constituted-of-or-filled-with marine ecosystems.Logical formLearned from2 sentences. Consequences can be to ecosystems.Logical formLearned from2 sentences. A (coral ecosystem) may pertain-to a country.Logical formLearned from2 sentences. Some ecosystems can be (capital circle).Logical formLearned from2 sentences. Ecosystems can be by protecting lands.Logical formLearned from2 sentences. A wetland can be ecosystems.Logical formLearned from2 sentences. (Forest ecosystem) may undergo an improvement.Logical formLearned from2 sentences. A (caspian ecosystem) can be closed.Logical formLearned from2 sentences.