The Rimba Raya Biodiversity Reserve REDD Project

G1.8.1. Significant Concentrations of BiodiversityValuesGlobally, regionally or nationally significant concentrations ofbiodiversity values;The Indonesian Toolkit distinguishes four sub-­‐values of HCV 1,corresponding approximately to G1.8.1.a, b, c, and d, below:HCV 1.1 Areas that contain or provide biodiversitysupport function to protected areasHCV 1.2 Areas that contain one or more individuals ofHCV 1.3Critically Endangered speciesAreas with habitat for viable populations ofone or more endangered, restricted-­‐ range,or protected speciesHCV 1.4 Areas that contain habitat of temporary use byspecies or congregationsThe potential presence of each sub-­‐value of HCV 1 in theProject Zone is discussed in turn.a. protected areas.HCV 1.1 draws attention to areas that contain or providebiodiversity support function to protection orconservation areas in or near the assessment area (in thiscase the Project Zone) to ensure that managementactions are taken to maintain or enhance the function ofsuch areas. HCV 1.1 in the revised Toolkit includes areasofficially protected by the Government of Indonesia, aswell as those designated by local communities toconserve local biodiversity.The key question for evaluating HCV 1.1 in the Indonesiancontext is:Does the assessment area contain a protection orconservation area designated to conservebiodiversity, or does it provide a biodiversitysupport function to such an area in thesurrounding landscape?HCV 1.1 is considered present in the Project Zone. TheRimba Raya Project Area is adjacent to and contiguouswith the eastern boundary of Tanjung Puting NationalPark, a protected area of well-­‐known biodiversityconservation importance. The Project Zone provides vitalbiodiversity support function as a buffer zone of TanjungPuting, by expanding the effective area of lowland forestcover in the greater Tanjung Puting landscape by 14% (OFI2008). This buffer zone function expands availablehabitat for orangutans and a wide variety of threatenedor protected plant and animal species in the nationalpark, as described more fully under sections G1.8.1.b-­‐dbelow.The Project Zone also contains legally mandatedprotection zones along riparian-­‐zone floodplains of theSeruyan River and its numerous tributaries, as well as lakeshore buffer zones associated with undiscovered wetlandareas potentially present within the freshwater/peatswamp mosaic of habitats in the Project Zone, and thewestern shores of the Sembuluh Lake system overlappingthe eastern boundary of the Project Zone (see Figure 8 inSection G1.3, above). These protected areas aredelineated by the government primarily for the protection57