Animalia > Chordata > Mammalia > Primates > Hominoidea > Hylobatidae > Symphalangus > Symphalangus syndactylus

Symphalangus syndactylus (siamang)

Synonyms: Hylobates syndactylus; Simia gibbon; Simia syndactyla; Symphalangus syndactylus continentis; Symphalangus syndactylus volzi

Wikipedia Abstract

The siamang (Symphalangus syndactylus) is an arboreal black-furred gibbon native to the forests of Malaysia, Thailand, and Sumatra. The largest of the gibbons, the siamang can be twice the size of other gibbons, reaching 1 m in height, and weighing up to 14 kg. The siamang is the only species in the genus Symphalangus. The siamang can live to around 40 years in captivity.
View Wikipedia Record: Symphalangus syndactylus

Endangered Species

Status: Endangered
View IUCN Record: Symphalangus syndactylus


Adult Weight [1]  24.03 lbs (10.90 kg)
Birth Weight [1]  1.14 lbs (517 g)
Female Maturity [1]  6 years
Male Maturity [1]  6 years
Diet [2]  Carnivore (Invertebrates), Frugivore, Herbivore
Diet - Fruit [2]  80 %
Diet - Invertibrates [2]  10 %
Diet - Plants [2]  10 %
Forages - Arboreal [2]  100 %
Gestation [1]  7 months 21 days
Litter Size [1]  1
Litters / Year [1]  0
Maximum Longevity [1]  43 years
Weaning [1]  1 year 9 months

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Berbak National Park II 423927 Sumatra, Indonesia
Bukit Barisan Selatan National Park II 836773 Sumatra, Indonesia  
Bukit Kutu Wildlife Reserve IV 4602 Peninsular Malaysia, Malaysia  
Bukit Tigah Puluh National Park 360578 Sumatra, Indonesia
Gunung Leuser National Park II 2203368 Sumatra, Indonesia
Kerinci Seblat National Park II 3463483 Sumatra, Indonesia  
Krau Wildlife Reserve IV 149823 Peninsular Malaysia, Malaysia  
Pasoh Virgin Jungle Reserve Ia   Peninsular Malaysia, Malaysia  
Taman Negara National Park II 1122273 Peninsular Malaysia, Malaysia  
Tropical Rainforest Heritage of Sumatra World Heritage Site 6412694 Indonesia      
Way Kambas National Park II 306926 Sumatra, Indonesia

Prey / Diet

Ficus binnendykii[3]
Ficus consociata[3]
Ficus crassiramea subsp. stupenda[3]
Ficus cucurbitina[3]
Ficus drupacea (brown-woolly fig)[3]
Ficus dubia[3]
Ficus grewiifolia[3]
Ficus kerkhoveni[3]
Ficus pellucidopunctata[3]
Ficus ruginervia[3]
Ficus sumatrana[3]
Ficus virens[3]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Aceros corrugatus (Wrinkled Hornbill)6
Aceros waldeni (Walden's Hornbill)5
Alcippe brunneicauda (Brown Fulvetta)3
Alophoixus bres (Grey-cheeked Bulbul)4
Alophoixus finschii (Finsch's Bulbul)2
Alophoixus phaeocephalus (Yellow-bellied Bulbul)6
Anorrhinus galeritus (Bushy-crested Hornbill)9
Anthracoceros albirostris (Oriental Pied Hornbill)2
Anthracoceros malayanus (Black Hornbill)11
Arctictis binturong (Binturong)3
Berenicornis comatus (White-crowned Hornbill)2
Buceros rhinoceros (Rhinoceros Hornbill)9
Callosciurus adamsi (ear-spot squirrel)3
Callosciurus nigrovittatus (black-striped squirrel)7
Callosciurus notatus (plantain squirrel)6
Callosciurus prevostii (Prevost's squirrel)9
Caloramphus fuliginosus (Brown Barbet)10
Calyptomena viridis (Green Broadbill)11
Chalcophaps indica (Common Emerald Dove)2
Chloropsis cochinchinensis (Blue-winged Leafbird)7
Chloropsis cyanopogon (Lesser Green Leafbird)8
Chloropsis sonnerati (Greater Green Leafbird)10
Corvus enca (Slender-billed Crow)2
Dicaeum agile (Thick-billed Flowerpecker)3
Dicaeum chrysorrheum (Yellow-vented Flowerpecker)6
Dicaeum concolor (Nilgiri Flowerpecker)2
Dicaeum trigonostigma (Orange-bellied Flowerpecker)3
Ducula badia (Mountain Imperial Pigeon)2
Ducula bicolor (Pied Imperial Pigeon)2
Eudynamys scolopaceus (Asian Koel)4
Gracula religiosa (Hill Myna)7
Helarctos malayanus (Sun bear)2
Hemixos flavala (Ashy Bulbul)3
Hylobates agilis (agile gibbon)2
Hylobates lar (white-handed gibbon)9
Hylobates moloch (silvery gibbon)2
Iole olivacea (Buff-vented Bulbul)7
Irena puella (Asian Fairy-bluebird)11
Ixos malaccensis (Streaked Bulbul)4
Loriculus galgulus (Blue-crowned Hanging Parrot)3
Macaca fascicularis (long-tailed macaque)7
Macaca nemestrina (pigtail macaque)2
Megalaima australis (Blue-eared Barbet)11
Megalaima chrysopogon (Golden-whiskered Barbet)10
Megalaima haemacephala (Coppersmith Barbet)3
Megalaima henricii (Yellow-crowned Barbet)9
Megalaima mystacophanos (Red-throated Barbet)10
Megalaima rafflesii (Red-crowned Barbet)6
Oriolus xanthonotus (Dark-throated Oriole)3
Pericrocotus flammeus (Scarlet Minivet)2
Pericrocotus igneus (Fiery Minivet)2
Platysmurus leucopterus (Black Magpie)3
Pongo pygmaeus (orangutan)10
Prionochilus maculatus (Yellow-breasted Flowerpecker)5
Prionochilus percussus (Crimson-breasted Flowerpecker)7
Prionochilus thoracicus (Scarlet-breasted Flowerpecker)2
Prionochilus xanthopygius (Yellow-rumped Flowerpecker)2
Ptilinopus jambu (Jambu Fruit Dove)3
Pycnonotus atriceps (Black-headed Bulbul)4
Pycnonotus brunneus (Asian Red-eyed Bulbul)8
Pycnonotus cyaniventris (Grey-bellied Bulbul)6
Pycnonotus erythropthalmos (Spectacled Bulbul)5
Pycnonotus eutilotus (Puff-backed Bulbul)7
Pycnonotus goiavier (Yellow-vented Bulbul)2
Pycnonotus melanicterus (Black-crested Bulbul)2
Pycnonotus simplex (Cream-vented Bulbul)4
Pycnonotus squamatus (Scaly-breasted Bulbul)2
Ratufa affinis (pale giant squirrel)5
Ratufa bicolor (black giant squirrel)6
Rhinoplax vigil (Helmeted Hornbill)6
Rhyticeros undulatus (Wreathed Hornbill)6
Sundasciurus tenuis (slender squirrel)2
Sus barbatus (bearded pig)2
Trachypithecus obscurus (dusky leaf monkey)4
Treron capellei (Large Green Pigeon)6
Treron curvirostra (Thick-billed Green Pigeon)10
Treron olax (Little Green Pigeon)3
Tricholestes criniger (Hairy-backed Bulbul)3
Tupaia glis (Common Treeshrew)5
Tupaia minor (Pygmy Treeshrew)5


Southern Asia;



Attributes / relations provided by
1de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
3"Fig-eating by vertebrate frugivores: a global review", MIKE SHANAHAN, SAMSON SO, STEPHEN G. COMPTON and RICHARD CORLETT, Biol. Rev. (2001), 76, pp. 529–572
Protected Areas provided by Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Le Saout, S., Hoffmann, M., Shi, Y., Hughes, A., Bernard, C., Brooks, T.M., Bertzky, B., Butchart, S.H.M., Stuart, S.N., Badman, T. & Rodrigues, A.S.L. (2013) Protected areas and effective biodiversity conservation. Science, 342, 803–805
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access