Overview

Distribution

Range Description

The precise limits of distribution of this species are unclear. It is reliably recorded from Cambodia, Viet Nam, and from southern Lao PDR, where Duckworth et al. (1999) reported them as far north as about 15.4°N. To the west of this, they extend to Kanchamburi Province in southern Thailand right to the Bay of Bengal in Myanmar, as Groves (2001) notes intersecting between the distributions of T. obscurus and T. phayrei. Records from Assam and elsewhere in north-east India, which have been attributed to this species, presumably relate to another species and indeed it is not mentioned as part of the range of this species by Groves (2005).
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Physical Description

Type Information

Type for Trachypithecus germaini germaini
Catalog Number: USNM 236627
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Mammals
Sex/Stage: Female; Adult
Preparation: Skin; Skull
Collector(s): C. Kloss
Year Collected: 1916
Locality: Lat Bua Kao [= Lat Bua Khao], Nakhon Ratchasima, Thailand, Asia
  • Type: Kloss, C. B. 1919 Dec 31. Journal of the Natural History Society of Siam. 3: 340.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is primarily a lowland species, with a preference for evergreen and semi-evergreen, mixed deciduous, riverine and gallery forest. Records in hilly areas or at higher elevations are few.

Systems
  • Terrestrial
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Trachypithecus germaini

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Trachypithecus germaini

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
A2cd

Version
3.1

Year Assessed
2008

Assessor/s
Nadler, T., Timmins, R.J. & Richardson, M.

Reviewer/s
Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)

Contributor/s

Justification
Listed as Endangered as it is believed to have undergone a decline exceeding 50% over the past 36 years (3 generations, given a generation length of 12 years) due to a combination of habitat loss and hunting pressure.

History
  • 2000
    Data Deficient
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Population

Population
This is a widespread but very rare species throughout most of its range (Nadler et al. 2003). The apparently extremely low density of this species in Viet Nam suggests that the population has been seriously reduced due to human pressure (Nadler et al. 2003). There are only a few sightings documented in that country over the last 50 years, though this may be a result of limited surveys conducted in the species' range (Nadler et al. 2003). It has been recorded in Cat Tien National Park but its relative abundance is not as high as douc langurs (Pygathrix spp.). In Lao PDR, it is probably localized though possibly common in a small number of areas; however, no large continuous area is known to support high populations (Duckworth et al. 1999). It is widespread in Cambodia, and, in certain areas (such as the lowlands of northern Mondulkiri) it may be the most common primate; in other areas, it is surprisingly rare or uncommon (R. Timmins pers. comm.). In Thailand the taxon is moderately common in several protected areas, but has declined significantly (W. Brockelmann pers. comm.). In Kien Giang Province (confirmed germaini), five or six limestone hills have significant remaining populations. Overall, the impression is one of a significantly declining population.

Population Trend
Decreasing
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Threats

Major Threats
The major threats to this species are hunting, mainly for subsistence use and traditional “medicine”, the pet trade and habitat loss, mainly due to agricultural expansion.
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Management

Conservation Actions

Conservation Actions
This species is listed on CITES Appendix II. It has been recorded from Phu Quoc National Park (Viet Nam), and probably still occurs in Cat Tien National Park (Viet Nam), and it occurs in several protected areas in Thailand. Further survey and taxonomic work is needed to elucidate and better understand the population status and limits of distribution of this species, and especially to resolve the status of the form margarita relative to germaini.
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