This report contains the findings from a rapid biological assessment of the Grensgebergte and Kasikasima mountains of southeastern Suriname. Suriname is one of the last places on Earth where an opportunity still exists to conserve huge tracts of pristine, diverse tropical forests. This volume is part of a series of surveys in Suriname designed to support the protection of biodiversity and freshwater and other ecosystem services through collection of baseline biological and socioeconomic data. The researchers in southeastern Suriname investigated plants, mammals, birds, reptiles, amphibians, fishes, insects, and water quality. Over one hundred new species were discovered, including fish, beetles, and katydids.

This report contains the findings from a rapid biological assessment of the Kwamalasamutu region of southwestern Suriname. Focusing on the plant and animal species important to the indigenous Trio people, this survey establishes baseline information on the region's biodiversity and ecosystem health in order to better inform ecotourism and monitoring efforts. The RAP team found the Kwamalasamutu region to harbor rich biodiversity, with few signs of ecosystem degradation, and at least forty-six of the species identified in this volume are new to science. Further conservation and management recommendations are provided.