Douc Langur, Pygathrix nemaeus
June 2003

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Douc Langur

TAXONOMY AND NOMENCLATURE
(Ankel-Simons 2000) (Elliot 1913) (Jablonski 1995) (McKenna & Bell 1997)
(Nadler 1997)(Whitehead & Jolly 2000) (Zhang & Ryder 1998)


Describer (Date):
Linnaeus, 1771. Mantissa Plantarum p. 521 describes a red-shanked douc. Simia nemaeus

Kingdom: Animalia
   Phylum: Chordata
       Class:
Mammalia 
            Order: Primates
                  Parvorder: Anthropoidea
                        Family: Cercopithecidae (Old World Monkeys)
                              Subfamily: Colobinae (Leaf-eating Monkeys)
                                    Genus: Pygathrix
                                          Species: Pygathrix nemaeus
                                               Subspecies: Pygathrix n. nemaeus (northern Vietnam, Laos)
                                                                        Pygathrix n. nigripes (southern Vietnam, Cambodia)
                                                                        Pygathrix n. cinereus (central Vietnam)

Taxonomy Nomenclature (Hill 1964) (Gotch 1979) Phylogeny
DISTRIBUTION AND HABITAT  
(Fooden 1996)(Lippold 1998)(Lippold 1999)

Distribution Habitat
PHYSICAL CHARACTERISTICS
(Ankel-Simons 2000)( Lippold 1998)( Napier & Napier 1967)(Nowak 1999)


Weight: Males: 24 lbs, Females 18 lbs
Body Length: 22-25 in. Males somewhat larger than females. (General lack of dimorphism in arboreal species)
Tail Length: 23-29 in.

Other Physical Characteristics:
BEHAVIOR AND ECOLOGY
(Lippold 1977)(Lippold 1998)(Whitehead & Jolly 2000)

Activity Cycle Social Group Territory Play Communication

        Displays / Visual signals
        Vocalizations Locomotion Interspecies Interaction Ethogram: Can be found in Abbot et al. (1997-2000), Douc langur project, p. 10: Table 4.
DIET AND FEEDING
(Caton 1998)(Lippold 1998)(Nhat 1994)(Whitehead & Jolly 2000)
Water


REPRODUCTION AND DEVELOPMENT
(Lippold 1977) (Lippold 1981) (Lippold 1989)(Ruempler 1998)


Courtship Reproduction Gestation: 200-205 days. Single birth after about 90 minutes of labor. Twins are rare. Placenta detaches after 1 or 2 days.

Birth Interval:
11-38 months

Life Stages

        Infant stage 1:
Birth-8 months         Infant stage 2: 8-18 months         Infant stage 3: 19-24 months         Juvenile: 2-4 or 5 years         Adults: Sexually mature individuals Longevity: 25-30 years

Captive Breeding

DISEASES AND PATHOLOGY
(Abbott 1998)(Ensley 1982)(Helstab 1988)(Janssen 1994)(Ruempler 1998)

MANAGED CARE
(Kavanagh 1978)(Lippold 1987)(Ruempler 1998)

POPULATION AND CONSERVATION STATUS
(MacKinnon and MacKinnon 1987)
Conservation Threats to survival (Lippold & Vu 1998)
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