Animalia > Chordata > Mammalia > Primates > Cercopithecoidea > Cercopithecidae > Trachypithecus > Trachypithecus obscurus

Trachypithecus obscurus (dusky leaf monkey)

Wikipedia Abstract

The dusky leaf monkey, spectacled langur, or spectacled leaf monkey (Trachypithecus obscurus) is a species of primate in the family Cercopithecidae. It is found in Malaysia, Burma, and Thailand. There are several subspecies of this lutung: \n* Trachypithecus obscurus obscurus \n* Trachypithecus obscurus flavicauda \n* Trachypithecus obscurus halonifer \n* Trachypithecus obscurus carbo \n* Trachypithecus obscurus styx \n* Trachypithecus obscurus seimundi \n* Trachypithecus obscurus sactorum \n* Dusky leaf monkey - Kaeng Krachan National Park \n* Lost dusky leaf monkey calling - Kaeng Krachan National Park.
View Wikipedia Record: Trachypithecus obscurus


EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 2.72
EDGE Score: 2.01


Adult Weight [2]  15.61 lbs (7.08 kg)
Birth Weight [2]  300 grams
Female Maturity [2]  4 years
Diet [3]  Frugivore, Herbivore
Diet - Fruit [3]  30 %
Diet - Plants [3]  70 %
Forages - Arboreal [3]  100 %
Arboreal [1]  Yes
Gestation [2]  4 months 25 days
Litter Size [2]  1
Litters / Year [2]  1
Maximum Longevity [2]  34 years
Weaning [2]  1 year


Name Countries Ecozone Biome Species Report Climate Land
Indochina mangroves Thailand, Cambodia, Viet Nam Indo-Malayan Mangroves
Myanmar Coast mangroves India, Myanmar, Malaysia, Thailand Indo-Malayan Mangroves  
Myanmar coastal rain forests Myanmar, Bangladesh Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Peninsular Malaysian montane rain forests Malaysia Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Peninsular Malaysian peat swamp forests Malaysia, Thailand Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Peninsular Malaysian rain forests Indonesia, Malaysia Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests
Tenasserim-South Thailand semi-evergreen rain forests Myanmar, Thailand, Malaysia Indo-Malayan Tropical and Subtropical Moist Broadleaf Forests

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Bukit Kutu Wildlife Reserve IV 4602 Peninsular Malaysia, Malaysia  
Khao Sam Roi Yot National Park II 39512 Thailand
Krau Wildlife Reserve IV 149823 Peninsular Malaysia, Malaysia  
Sungai Lalang Forest Reserve Virgin Jungle Reserve Ia   Peninsular Malaysia, Malaysia  
Taman Negara National Park II 1122273 Peninsular Malaysia, Malaysia  
Tasek Bera Forest Reserve   Peninsular Malaysia, Malaysia  

Biodiversity Hotspots

Name Location Endemic Species Website
Indo-Burma Bangladesh, Cambodia, China, India, Laos, Myanmar, Thailand, Viet Nam No
Sundaland Brunei Darussalam, Indonesia, Malaysia, Singapore, Thailand No

Prey / Diet

Ficus cucurbitina[4]
Ficus delosyce[4]
Ficus dubia[4]
Ficus stricta[4]
Ficus subcordata[4]
Ficus sumatrana[4]
Ficus virens[4]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Aceros corrugatus (Wrinkled Hornbill)3
Alophoixus bres (Grey-cheeked Bulbul)2
Anorrhinus galeritus (Bushy-crested Hornbill)5
Anthracoceros malayanus (Black Hornbill)7
Arctictis binturong (Binturong)3
Buceros rhinoceros (Rhinoceros Hornbill)6
Callosciurus nigrovittatus (black-striped squirrel)3
Callosciurus notatus (plantain squirrel)4
Callosciurus prevostii (Prevost's squirrel)7
Caloramphus fuliginosus (Brown Barbet)7
Calyptomena viridis (Green Broadbill)7
Chloropsis cochinchinensis (Blue-winged Leafbird)4
Chloropsis cyanopogon (Lesser Green Leafbird)5
Chloropsis sonnerati (Greater Green Leafbird)7
Corvus enca (Slender-billed Crow)2
Dicaeum chrysorrheum (Yellow-vented Flowerpecker)4
Dicaeum trigonostigma (Orange-bellied Flowerpecker)2
Ducula badia (Mountain Imperial Pigeon)3
Eudynamys scolopaceus (Asian Koel)2
Gracula religiosa (Hill Myna)7
Hemixos flavala (Ashy Bulbul)2
Hylobates lar (white-handed gibbon)6
Iole olivacea (Buff-vented Bulbul)3
Irena puella (Asian Fairy-bluebird)6
Ixos malaccensis (Streaked Bulbul)4
Lophura ignita (Crested Fireback)2
Loriculus galgulus (Blue-crowned Hanging Parrot)3
Macaca fascicularis (long-tailed macaque)7
Macaca nemestrina (pigtail macaque)2
Megalaima australis (Blue-eared Barbet)6
Megalaima chrysopogon (Golden-whiskered Barbet)6
Megalaima henricii (Yellow-crowned Barbet)6
Megalaima mystacophanos (Red-throated Barbet)7
Megalaima rafflesii (Red-crowned Barbet)5
Pericrocotus igneus (Fiery Minivet)2
Platysmurus leucopterus (Black Magpie)2
Pongo pygmaeus (orangutan)3
Ptilinopus jambu (Jambu Fruit Dove)2
Pycnonotus atriceps (Black-headed Bulbul)4
Pycnonotus brunneus (Asian Red-eyed Bulbul)6
Pycnonotus cyaniventris (Grey-bellied Bulbul)3
Pycnonotus eutilotus (Puff-backed Bulbul)5
Pycnonotus plumosus (Olive-winged Bulbul)2
Pycnonotus squamatus (Scaly-breasted Bulbul)2
Ratufa affinis (pale giant squirrel)3
Ratufa bicolor (black giant squirrel)5
Rhinoplax vigil (Helmeted Hornbill)4
Rhyticeros undulatus (Wreathed Hornbill)2
Symphalangus syndactylus (siamang)4
Treron capellei (Large Green Pigeon)6
Treron curvirostra (Thick-billed Green Pigeon)7
Tricholestes criniger (Hairy-backed Bulbul)2
Tupaia glis (Common Treeshrew)2
Tupaia minor (Pygmy Treeshrew)3

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Adelaide Zoo
Birmingham Zoo
Burger's Zoo
Dallas Zoo
Dusit (Bangkok) Zoological Park
Fort Wayne Children's Zoo
Henson Robinson Zoo
Howletts Wild Animal Park
Khao Kheow Open Zoo
Nakhon Ratchasima Zool. Park
Saint Louis Zoological Parkflavicauda
Songkhla Zoo
The Philadelphia Zoo
Tulsa Zoo & Living Museum
Twycross Zoo
Yokohama Zool. Gardens
Zoo Negara Malaysia
Zoo Taiping & Night Safari
Zoologischer Garten Wuppertal

Range Map

Southern Asia;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2de 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
3Hamish 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
4"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
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access