Taxon name
Trachypithecus phayrei
(Blyth, 1847)
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Trachypithecus phayrei
(Blyth, 1847)
Common name(s)
Phayre's Langur, Phayrei's Leaf Monkey, Spectacled Langur, Chosmapora Hanuman, Kalo Hanuman, Kala Bandar
Assessed taxon level
Species
Higher level taxonomic groupings
Vertebrates
Mammals
Species authority
(Blyth, 1847)
Taxonomic notes and synonyms listed
Of the three recognized subspecies only one T. p. phayrei is found in Bangladesh (Bleisch et al. 2008, Kabir 2009).
Presbytis phayrei Blyth, 1847; Semnopithecus phayrei Anderson, 1878
Location and scope
Specific locality or subnational name or regional name
Bangladesh
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Assessed as
Data Deficient
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species is listed as Critically Endangered as its population has declined more than 80% over the last three generations due to habitat destruction. Moreover, the mature individuals in each subpopulation are less than 50.
Assessment details
Assessors/contributors/reviewers listed
Md. Mofizul Kabir
Criteria system used
IUCN
Reference for methods given
IUCN (2012) IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland and Cambridge, UK: IUCN. iv + 32pp; IUCN (2012) Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp.
URL (link) of redlist assessment or publication
http://iucnredlistbd.org/
Further information
Endemism (according to assessment)
Taxon distribution as listed in assessment
It occurs in Bangladesh, China, India, Myanmar, Lao PDR, Thailand and Viet Nam (Molur et al. 2003). In Bangladesh, Phayre's Langur is mainly found in the mixed evergreen forests, and adjacent plantations, especially bamboo clumps of Sylhet, Chittagong Districts and the Chittagong Hill Tracts region (Kabir 2002, 2009, Khan 1987, 2015).
Is there a map available in assessment?
Yes, in the publication/on website
Habitat and systems
Ecological system type
Habitat
Habitat details as listed in assessment
This species is found in forests, bamboos, primary and secondary mixed evergreen forests. This species generally prefers middle canopy of the forest, but also use the top and lower part of the trees for feeding and movement.This species is diurnal, arboreal and folivorous. It loves to eat new shoots of bamboo. It lives in both uni-male and multimale, multi- female group.
History
Critically Endangered in Bangladesh (IUCN Bangladesh 2000).
Publication
IUCN Bangladesh. 2015. Red List of Bangladesh Volume 2: Mammals. IUCN, International Union for Conservation of Nature, Bangladesh Country Office, Dhaka, Bangladesh, pp. xvi+232
