Primary forest blankets the lower elevations, while alpine scrub and grasslands occur higher up.
The area is home to 220 bird species of which 49 are endemic and 84 mammal species, of which 15 are endemic. Although the WMA currently has a low population density, a number of threats are looming in the near future including industrial logging, mining and oil drilling. These enterprises provide lodging and guide services for visiting scientists, as well as for domestic and international visitors. The team is working with landowners to develop a land-use management plan which provides for biodiversity conservation and enterprise sustainability.