ABSTRACT
YUMARNI. Gunung Halimun Salak National Park Corridor Conservation for
Javan Gibbon (Hylobates moloch Audebert 1797) Habitats. Under direction of
HADI SUKADI ALIKODRA, LILIK BUDI PRASETYO, and RINEKSO
SOEKMADI.
The Gunung Halimun Salak National Park (GHSNP) corridor is an area
connecting the Gunung Halimun and the Gunung
Salak in the Gunung Halimun
Salak National Park (GHSNP). The corridor functions as a habitat and a
movement line for some important protected wildlife, such as javan gibbon
(Hylobates moloch Audebert 1797). Javan gibbon is an endemic primate of Java
Island. Its populations tend to decline and are scarcely distributed only in West
and Central Java. The IUCN (International Union for Conservation of Nature)
categorizes it as an endangered species. It is heavily dependent on its habitat
condition that should provide appropriate trees for its food and bed. The local
community’s high dependence on land and natural resources in the corridor has
become a thread to the existence of Javan gibbon. The study is aimed at
formulating the management of corridor models for conservation of the javan
gibbon. It employs the Line Transect Methods for the data of javan gibbon’s
population, the square line method for the javan gibbon’s habitat, and the use of
Arc GIS 9.3 program for spatial modelling of javan gibbon’s habitat suitability in
the National Park’s corridor, and the use of secondary data for the analisys of
social economy of community. The research found nine groups of javan gibbon
with 28 individuals in the corridor and nojavan gibbon in the research site of
Cipanas. The group density of javan gibbon varied from 0.01 to 0.03 groups per
km
2
, the population density was between 0.04 and 0.09 individual per km
2
. The
average of highest INP values of trees was owned by rasamala (
Altingia excelsa)
at 144.26%, manii (Maesopsis eminii) at 64.65% and puspa (Schima wallichii) at
60.90%. The highest INP values for young trees were of kisireum (Syzygium
rostratum) 79.02%, manii (73.68%), and huru hiris (Litsea brachystachya)
62.69%, while those for sapling were of manii (88.58%), kopinango (Nyssa sp.)
81.12%, and mara bereum (Macaranga triloba) 63.53%, for seedling level of
batarua (Quercus gemiliflorus) 83.50%, manii (72.42%), and pasang (Quercus
oldocarpa) 44.39%. For the habitat suitability, all groups of javan gibbon were
found in the suitable class of habitat and nojavan gibbon found in the highly
suitable and unsuitable habitat. There were estimation 28,608 people living in the
corridor at 2020. most of them (76.58%) were at low level education (elementary
and middle school); 52.64% were at 19 to 59 years of age; 63.29% were farmers;
83.4% held land less than 0.25 hectares; and 86.7% had monthly family income
lower than Rp 74,000,-/capyta/year.
Keywords: conservation, corridor, national park, habitat, javan gibbon.