[1] The ecological station lies in the municipalities of Assis Brasil and Sena Madureira in the state of Acre.

The first occurrence in Brazil of several species of birds was first recorded in the ecological station, including sapphire-spangled emerald (Amazilia lactea), Guianan warbling antbird (Hypocnemis cantator), buff-fronted foliage-gleaner (Philydor rufum), wedge-billed woodcreeper (Glyphorynchus spirurus), Tschudi's woodcreeper (Xiphorhynchus ocellatus chunchotambo) and russet-backed oropendola (Psarocolius angustifrons).

The yellow-spotted river turtle is found in small numbers, but is subject to increasing pressure from people hunting the eggs.

44 species of terrestrial mammals have been recorded, including the threatened giant armadillo (Priodontes maximus), giant anteater (Myrmecophaga tridactyla), Peruvian spider monkey (Ateles chamek), Goeldi's marmoset (Callimico goeldii), South American tapir (Tapirus terrestris), neotropical otter (Lontra longicaudis), margay (Leopardus wiedii), jaguar (Panthera onca) and cougar (Puma concolor).

[3] The Ecological Station is a "strict nature reserve" under IUCN protected area category Ia.