The Rimba Raya Biodiversity Reserve REDD Project

MammalsSix EN mammal species are confirmed present in TPNP and/or theProject Area, including the Bornean orangutan (Pongopygmaeus), agile gibbon (Hylobates agilis), proboscis monkey(Nasals larvatus), pangolin (Manis javanica), hairy-­‐nosed otter(Lutra sumatrana), and Borneo bay cat (Catopuma badia). All sixof these species, except the pangolin, rely on forested habitats,with the agile gibbon dependent on mature or primary forest.The banteng (Bos javanicus) was previously confirmed present inTPNP, but is now likely locally extinct.PlantsAll of the seven confirmed CR and EN plants listed are largeemergent or canopy trees in the Dipterocarpaceae, including onein the genus Dipterocarpus, five Shorea and one Vatica species.Distribution of these species is restricted to mature lowland rainforest in its various forms (freshwater swamp forest, peat swampforest, and lowland dipterocarp forest) and all are considered CRor EN due primarily to habitat loss. Based on habitat type andextent in the Project Area, large populations of these species arelikely to be present, in particular the CR species Dipterocarpuscoriaceus and Shorea balangeran.present on the basis of geographic range, and the condition andextent of suitable habitat.ReptilesA further three species of EN herptofauna are likely present inthe Project Area based on confirmed presence in TPNP andcontiguity of suitable habitat: the False ghavial (Tomistomaschlegelii); Malayan giant turtle (Orlitia borneensis) and Asianbrown tortoise (Manouria emys).One notable CR species of herptofauna is considered potentiallypresent in the Project Zone, the Painted river terrapin (Callagurborneoensis). This species inhabits the tidal portion of rivers andestuarine mangrove areas and feeds on fruit, leaves, and clams.Females nest on sand beaches along riverbanks and coastalbeaches. Its distribution on Borneo is unclear, and is likelywidespread but rare. It is considered potentially present on thebasis of suitable habitat in the Project Zone.BirdsOf the 361 bird species considered likely to occur in TPNP and theProject Area, one species – the Storm’s Stork (Ciconia stormi) – isclassified as EN. Endemic to the Sunda sub-­‐region, less than1,000 individuals of this stork remain in the forested swamps ofBorneo, Sumatra and the Malay Peninsula. It is considered likely279