02/02/2013; Beni; 2,404,916 ha; 13°37'59"S 063°23'35"W. Área Natural de Manejo Integrado; Reserva Científica, Ecológica, Arqueológica. A large and important system of alluvial plains in the northeast of the country, with representative flooded amazon forests. The site hosts a huge biodiversity - some 87 mammal, 433 bird, 61 reptile, and 436 fish species have been identified. It hosts three species of crocodiles (Melanosuchus niger, Caiman yacare and Paleosuchus palpebrosus) and 16 migratory bird species like Pearl Kite Gampsonyx swainsonii, Osprey Pandion haliaetus, American Golden Plover Pluvialis dominica, and White-rumped Sandpiper Calidris fuscicollis. There are 22 threatened species of vertebrates, amongst them the Giant Otter Pteronura brasiliensis, Water Opossum Chironectes minimus, and Giant Armadillo Priodontes maximus. The site also hosts more than 1% of the total population of the Neotropic Cormorant Phalacrocorax brasilianus as well as of the Giant Otter. In the Iténez River sub-basin can be found 436 fish species, about 60% of all the species to be found in the Amazon basin. Pressures from illegal exploitation of resources, especially timber and fish, are seen as a potential threat. Ramsar Site no. 2092. Most recent RIS information: 2013.