Ecosystems may change.Logical formLearned from8 sentences. A quality may pertain-to ecosystems.Logical formLearned from8 sentences. Ecosystems can be shallow.Logical formLearned from8 sentences. Fire can be in ecosystems.Logical formLearned from8 sentences. A (desert ecosystem) can be delicate.Logical formLearned from8 sentences. An oxygen can be in an ecosystem.Logical formLearned from8 sentences. An ecosystem can be nice.Logical formLearned from8 sentences. An ecosystem may pertain-to a forest.Logical formLearned from8 sentences. An ecosystem may pertain-to an archipelago.Logical formLearned from8 sentences. Ecosystems can be alpine.Logical formLearned from8 sentences. An ecosystem can be stressed.Logical formLearned from8 sentences. An ecosystem may undergo an expansion.Logical formLearned from8 sentences. An ecosystem may pertain-to a sea.Logical formLearned from8 sentences. A threat can be to a marine ecosystem.Logical formLearned from7 sentences. Effects can be on (ecosystem structure).Logical formLearned from7 sentences.