The Sierra Gorda Biosphere Reserve is located in the State of Queretaro in northern Mexico. Its strategic biogeographical position between the Arctic Neotropical and the Mesoamerican Mountain regions makes Sierra Gorda one of the most ecologically rich and diverse places in Mexico.
The Ría Celestún Biosphere Reserve is located in the northwest part of the Yucatán Península, in a coastal strip that includes the limits of the Campeche and Yucatán States. It encompasses coastal areas of the Gulf of Mexico and includes important Ramsar-designated wetlands,
The Lagunas de Montebello National Park and Biosphere Reserve is located in the Sierra Madre de Chiapas physiographic province, near the border with Guatemala. Comprising 59 multi-colored lakes in a pine forest along with two Maya ruins, it was the first national park in Chiapas when created in 1959.
The Tehuacán-Cuicatlán Biosphere Reserve is located in rugged terrain set amid a complex system of mountain ranges and valleys within the Sierra Madre del Sur. Due to its endemic species, endangered species and its rare floristic species, the site is an IUCN world biodiversity hotspot.
Isla de Sacrificios ("Island of Sacrifices") is an island in the Gulf of Mexico, situated off the Gulf coastline near the port of Veracruz, in Mexico. The waters surrounding the island are part of the Sistema Arrecifal Veracruzano National Marine Park.
The Mar Chiquito Biosphere Reserve consists of the ‘Parque Atlántico Mar Chiquita’, situated in the Chaco savanna region just north of Mar de Plata. It contains a large permanent, hyper-saline lake with some small islands and brackish marshes at the mouth of the rivers which flow into the lake.
The Laguna Blanca National Park and Biosphere Reserve is a typical treeless Patagonian steppe and contains the Laguna Blanca, a saline lake. The area is of particular interest for its birds and was established to protect the black-necked swan.
Located in eastern Paraguay, the Itaipu Biosphere Reserve covers a surface area of almost 2.5 million acres. It comprises an area of semi-deciduous subtropical forest and is one of the most important ecosystems for the conservation of biological diversity on a global scale.
The Riacho Teuquito Biosphere Reserve is located in the Province of Formosa, in the Chaqueña Region, in the northeastern part of Argentina. The Biosphere Reserve belongs to the Chaco biogeographical region.
The Área de Protección de Flora y Fauna Cuatrociénegas (or Cuatro Ciénegas) is an arid zone, with around 500 water bodies of varied shapes and shades of blue, surrounded by mountains where unique species of this region have developed.