Logging concessions Tere are currently no active large logging concessions in Aceh as a result of the Governor’s moratorium on logging in the province. In addition to this provincial moratorium a new two-year mora- torium on new logging concessions in the whole of Indonesia has been pledged by the president in 2010. At present, the immediate threat posed to Sumatran orangutan habitat from large-scale le-
gal logging is limited to one concession in North Sumatra, but in the past both legal and illegal logging have led to extensive losses of orangutan habitat (Rijksen and Meijaard 1999; van Schaik et al. 2001). Te concession, owned by PT Teluk Nauli, covers 30,520 hectares of forest in the upper water catchments of the West Batang Toru forest block. After initially developing an ac- cess road in the late 1990s, the company ceased logging in 2001