Agile Gibbon Hylobates agilis

Agile Gibbon Hylobates agilis

Agile Gibbon Hylobates agilis


Indonesia (Sumatera); Malaysia (Peninsular Malaysia); Thailand

The Agile Gibbon occurs at highest densities in dipterocarp-dominated forests, but their known habitat ranges from swamp and lowland forests to hill, submontane, and montane forests (O’Brien et al. 2004; Yanuar 2009). Additionally, populations in Bukit Barisan Selatan National Park in Sumatra do not seem to avoid forest edges near human habitations (O’Brien et al. 2004), a behavior that has also been observed in the Batang Toru Forest Complex, North Sumatra, Indonesia (Nowak pers. obs.).

Agile Gibbons communicate in local accents, form close familial bonds and monogamous partnerships. They are #endangered in #Sumatra #Indonesia #Thailand and #Malaysia on @IUCNredlist by #palmoil #deforestation and other threats.

While they prefer undisturbed primary forest, some studies from Sumatra indicate that they can also be found in previously disturbed regenerating forest (Sultan et al. 2009; Lee et al. 2015). In southern Sumatra, populations were found up to 1,400 meters (O’Brien et al. 2004).

On Sumatra, this species is threatened by forest conversion, mining, road construction, human encroachment, and a subsequent opportunistic capture for the pet trade and in some areas human consumption. Forests, where they remain, are extremely fragmented (Estrada et al. 2017). Agricultural expansion (e.g., coffee, oil palm, and rubber), in addition to the expansion of pulp-paper and sawn-timber plantations, are currently the main drivers of forest loss on Sumatra (O’Brien et al. 2003).

On Sumatra, this species is threatened by forest conversion.

IUCN Red List

Further Information

ICUN endangered logo

Geissmann, T., Nijman, V., Boonratana, R., Brockelman, W, Roos, C. & Nowak, M.G. 2020. Hylobates agilis. The IUCN Red List of Threatened Species 2020: e.T10543A17967655. Downloaded on 25 January 2021.

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Published by Palm Oil Detectives

Hi, I’m Palm Oil Detective’s Editor in Chief. Palm Oil Detectives is partly a consumer website about palm oil in products and partly an online community for writers, scientists, conservationists, artists and musicians to showcase their work and express their love for endangered species. I have a strong voice for creatures great and small threatened by deforestation. With our collective power we can shift the greed of the retail and industrial agriculture sectors and through strong campaigning we can stop them cutting down forests. Be bold! Be courageous! Join the #Boycott4Wildlife and stand up for the animals with your supermarket choices

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