Silvery gibbons, also known as Javan Gibbons, are an Endangered Species. In the misty rainforests of West and Central Java the haunting and beautiful call of the female Silvery gibbon can be heard at dawn in isolated patches of the forest. Only 2% of their habitat remains, and that too is under threat. The Silvery gibbon is the last ape species surviving in Java. Population estimates vary from only 400 to 3,000 individuals, scattered in isolated pockets of remnant forest, constantly dwindling around them.
Indonesia is a biodiversity hotspot. Threats to wildlife and their delicate habitat continue as the human population encroaches on the remaining rainforest, itself prone to intensive, often illegal logging. Species continue to decline with no reprieve in sight. Silvery gibbon populations that occupy habitats in close proximity to high-density areas and large cities, for example Jakarta, experience immense pressure. The illegal wildlife trade exacerbates the problem, in particular the demand for baby gibbons. The impact on the species is devastating. Photo: Paul Hilton for Earth Tree