Mancha Húmeda is a Spanish wetland area which was designated a Biosphere reserve in 1980. "Húmeda" means damp in Spanish and "Mancha Húmeda" refers to wetlands situated in La Mancha, a predominantly arid region of central Spain. The core area of the reserve is the Tablas de Daimiel National Park, a threatened wetland which continues to be important for its bird population. The buffer zone of Mancha Húmeda includes a natural park, the Lagunas de Ruidera Natural Park. The natural park, which is larger than the national park, is administered by the regional government of Castile-La Mancha.