Humedales La Libertad. 02/02/08; Chiapas; 5,432 ha;17°39'N 091°43'W. Situated in the Usumacinta River Basin, the site is composed of a complex of lagoons and temporary floodplains formed by the river La Libertad. The Manatee (Trichechus manatus), the Neotropical Otter (Lontra longicaudis) and the Black Howler Monkey (Alouatta pigra) are amongst the endangered species living in the area. The site presents ideal conditions for the reproduction stages of many species of importance including: the Coatimundi (Nasua narica), Paca (Agouti paca), the Banded Anteater (Tamandua mexicana), the Mesoamerican River Turtle (Dermatemys mawii), the Morelet's crocodile (Crocodilus moreletii), and fish species including Atractosteus tropicus and Cichlasoma heterospilum. It also shelters at least 99 species of resident and migratory birds. Fishing is the main productive activity. Factors negatively affecting the site include agricultural and livestock practices, deforestation, soil compaction caused by grazing, the discharge of waste waters, etc. The National History and Ecology Institute is in charge of the management of the site, and it is found under the IV IUCN Category of protected areas. Ramsar site no. 1774. Most recent RIS information: 2008.