Javan Gibbon(Hylobates moloch Audebert, 1797) Habitat Management Plan Outside the Conservation Area in West Java

• Main Author: I'lanul Anwar Atsaury, Zamzam
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/43343
• Institution: Institut Teknologi Bandung

Javan gibbon (Hylobates moloch Audebert, 1797) is one of the endemic and endangered primates that live in West Java. Based on the importance of the role in the ecosystem, Javan Gibbon is called as one of the umbrella species, namely species whose preservation influences the preservation of the ecosystem where the species is found. The distribution of Javan gibbons which are known to be currently only concentrated in conservation areas, but in this study found Javan gibbons living outside conservation areas in West Java. This study aims to determine the distribution and population, biophysical characteristics of the habitat, typology of the area around the habitat and develop a Javan gibbon habitat management plan. The study was conducted in four locations ranging from coastal areas to mountains, namely: Ciletuh, Kab. Sukabumi (0-500 masl); Cisokan, Kab. West Bandung-Kab. Cianjur (450-1000 masl); Cijedil, Kab. Cianjur (800-1300 masl); and Kanaan, Kab. Bandung (1,100-2,000 masl). Data collection on the existence of Javan Gibbon is done by roaming survey method, minimum convex polygon, profile diagram and quarterly method. Data analysis uses population and individual density analysis, mapping with ArcGIS, vegetation analysis and dynamic system models with STELLA. Based on the results of the study, Javan Gibbons in Ciletuh found 3 groups with 5 individuals (8.06 individuals / km2); in Cisokan found 4 groups with 10 individuals (19.48 individuals / km2); in Cijedil found 4 groups with 13 individuals (22.93 individuals / km2); and in Kanaan found 4 groups with 7 individuals (2.46 individuals / km2). Each habitat is divided into two typologies, namely in the form of fragmented forests such as in Ciletuh and Cisokan and some in the form of non-fragmented forests such as in Cijedil and Kanaan. Based on the results of the STELLA dynamic model, the presence of Javan gibbons in Ciletuh and Cisokan is predicted to be extinct in less than 15 years, while in Cijedil and Kanaan will not be extinct if current conditions are maintained. The extinction conditions in the fragmented forest can be extended by using a 100% anthropogenic threat reduction scenario. In addition, the addition of forest area, increasing the rate of forest recovery and reducing the rate of deforestation are no less important variables for management of Javan Gibbon habitat. All efforts to conserve this umbrella species will have a positive impact (to conserve) also for other species.