Reinforcing the isolated Javan langur population in the Coban Talun Protected Forest, East Java, Indonesia

Summary The Javan langur (Trachypithecus auratus) is listed by the IUCN (2012) as Vulnerable, with the reasons for population decline identified as the illegal pet trade, hunting, and loss and fragmentation of habitat. Populations of the subspecies occurring in East Java, Trachypithecus auratus auratus, occur in isolated forest fragments, and in many of these appear to be at low densities or in some cases extinct. The aim of the Coban Talun langur reinforcement project is to re-establish a viable, self-sustaining population of the Javan langur (Trachypithecus auratus auratus) in the Coban Talun