Question: Was Doñana National Park established as a nature reserve before or after Caldera de Taburiente National Park became a national park, that is which was first to receive its designation?
Sentence (from "Doñana National Park"): The eco-system has been under constant threat by the draining of the marshes, the use of river water to boost agricultural production by irrigating land along the coast, water pollution by upriver mining, and the expansion of tourist facilities.
Relevant evidence: No