The Silvery Gibbon is of genus ‘Hylobates’ which means ‘Forest Walker’ in Greek. They sing to each other in ‘local’ accents have thrilling acrobatic skills. Endangered on @IUCNRedList by deforestation incl. #palmoil #Boycott4WildlifeTweet
The Silvery Gibbon belongs to the genus Hylobates. The word Hylobates means ‘Forest Walker’ in Greek. The gibbons in this genus are known for the white circle of fur around their faces. They are known to communicate in species-specific song when defining territory or attracting mates. They sing in regional accents to each other, have long swinging arms, inquisitive natures and superior acrobatic skills, they spend most of their lives high up in the tree-tops.
Confined to the western part of the island of Java, Indonesia, in the provinces of Banten, West and Central Java. Lowland and lower montane rainforest up to 2,400 m asl but usually below 1,600 m asl (Asquith 1995, Farida and Haran 2000, Iskandar 2007, Kim et al. 2010, Supriatna and Ario 2015). They can tolerate disturbed habitat, but are known to prefer floristically-rich patches of forest. The extirpation of at least seven former sub-populations has been documented (Asquith et al. 1995) and recent studies of three of the four largest remaining populations (Ujung Kulon NP, Haliman-Salak NP and the Dieng Mountains) suggest high probabilities of extinction within a 100-year period if current conditions do not change, or if they worsen (Smith et al. 2018).
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