Vietnam Primate Conservation Status Review 2002 - Hoang Lien ...

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DISTRIBUTION OF TONKIN SNUB-NOSED MONKEY (Rhinopithecus avunculus) IN VIETNAM BAŒN ÑOÀ PHAÂN BOÁ LOAØI VOOÏC MUÕI HEÁCH ÔŒ VIEÄT NAM Vietnam Primate Conservation Status Review Part 2: LEAF MONKEYS 150 CHINA 107 0 E 106 0 E 105 0 E LAOS Baùt Ñaïi Sôn 40 20 0 KM THAILAND 23 0 N Phong Quang CAMBODIA Du Giaø Taây Coân Lónh 1 VIETNAM Trung Khanh CAO BAÈNG Taây Coân Lónh 2 Baéc Meâ Nuùi Pia Oaéc HAØ GIANG LEGEND-CHUÙ GIAŒI Na Hang Baœn Bung Country Border / Ranh giôùi quoác gia Provincial Border / Ranh giôùi tænh Ba Beå Records of Tonkin snub-nosed monkey Ghi nhaän veà vooïc muõi heách Kim Hyœ Na Hang Taét Keù Tam Tao Until 1988 (tröôùc naêm1988) 1989-1994 / Provisional (taïm thôøi) 1989-1994 / Confirmed (ñaõ xaùc nhaän) 1995-2002 / Provisional (taïm thôøi) 1995-2002 / Confirmed (ñaõ xaùc nhaän) Cham Chu BAÉC KAÏN Kim Bình Protected Area / Khu baœo veä 22 0 N TUYEÂN QUANG LAÏNG SÔN Thaùc Baø Hang Phöôïng Hoaøng Thaàn Xaœ Myõ Baèng Taân Traøo THAÙI NGUYEÂN Höõu Lieân YEÂN BAÙI AŒi Chi Laêng Taâm Ñaœo Nuùi Coác Yeân Theá Caém Sôn BAÉC GIANG VÓNH PHUÙC
5.1.3 Distribution 5 SNUB-NOSED MONKEYS The Tonkin snub-nosed monkey is endemic to northern Vietnam. Its range is historically limited to areas to the east of the Red River. Following the massive deforestation and the intensive hunting of recent decades, its distribution has become dramatically restricted. It is currently only known from small forest patches in Tuyen Quang and Bac Kan Provinces and to a lesser extent in Ha Giang and Thai Nguyen Provinces. The Tonkin snub-nosed monkey was known from only a few museum specimens, until a WWF team (Ratajszczak et al., 1990) surveyed the area around Ba Be National Park. Ratajszczak et al. (1992) conducted the first survey with a special emphasis on R. avunculus. Since then, several studies have been conducted, primarily in Na Hang region, Tuyen Quang Province, which have improved our knowledge of the species (Le Xuan Canh et al., 1992; Pham Nhat, 1994b; Boonratana & Le Xuan Canh, 1994; Boonratana, 1998, Dang Ngoc Can & Nguyen Truong Son, 1999; Long & Le Khac Quyet, 2001). In 2002 a FFI survey team discovered a further Tonkin snub-nosed monkey population in Ha Giang Province (Le Khac Quyet, 2002). 5.1.4 Tonkin snub-nosed monkey records Duc Xuan Commune, Bac Quang District (HA GIANG) Special use forest: None Tonkin snub-nosed monkey status: Provisional occurrence, last report in 1999 (interview) (Dang Ngoc Can & Nguyen Truong Son,1999) Chiem Hoa District (Tuyen Quang Province) was visited by a FFI team in November 1999 (Dang Ngoc Can & Nguyen Truong Son, 1999) with a special emphasis on R. avunculus. According to three local informants interviewed in Trung Ha Commune (Chiem Hoa District), one group of 8 to 10 individuals still inhabits Duc Xuan forest (Bac Quang District, Ha Giang Province) near the border of their commune. Na Chi Commune, Xin Man District (HA GIANG) Special use forest: None Tonkin snub-nosed monkey status: Provisional occurrence, last report 2001 (interview, specimen) (Le Khac Quyet, 2001) Le Khac Quyet provisionally confirmed the presence of Tonkin snub-nosed monkeys during a FFI survey (December 2000-January 2001). Interview data suggested 2 groups of 10-20 animals and two tails were found in a local house in Na Chi village. This very recent data is of enormous significance since it was formerly believed that the Tonkin snubnosed monkey was confined to only two areas of forest surrounding Na Hang. These new data are in accordance with the species range indicated by Fooden (1996) and Dang Ngoc Can & Nguyen Truong Son (1999) and requires further investigation. Du Gia Nature Reserve (HA GIANG) Special use forest: Nature reserve Tonkin snub-nosed monkey status: Occurrence confirmed, last evidence in 2002 (sighting) (Le Khac Quyet, 2002) 151
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Tilo Nadler - Frank Momberg - Nguye
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THE DESIGNATION OF GEOGRAPHICAL ENT
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iv 3.4 Delacour’s langur (Trachyp
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vi Acknowledgement Fauna & Flora In
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viii Abbreviations Key to abbreviat
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Red-shanked douc langurs; group of
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Vietnam Primate Conservation Status
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3 2 1 4 1. Indochinese Silvered lan
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3. Langurs
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3. Langurs 3.0 An introduction to t
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The basic social organisation for t
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3.1 Francois’ langur
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3.1 Francois’ langur Trachypithec
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DISTRIBUTION OF FRANCOIS' LANGUR (T
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3.1 FRANCOIS’ LANGUR - Trachypith
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Discussed records Quang Ninh Provin
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2 3 6 1 4 5 1. Hatinh langur; ad. m
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1 2 3 4 1. Cat Ba langur; ad. femal
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3.4. Delacour’s langur
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3.4 Delacour’s langur Trachypithe
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3.4 DELACOUR’S LANGUR - Trachypit
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3.4.4 Delacour’s langur records 3
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Locations where Delacour’s langur
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3.4.5 Status 3.4 DELACOUR’S LANGU
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3.4.6 Recommendations for conservat
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3.5. Grey langur
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3.5 Grey langur Trachypithecus crep
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Distribution in China 3.5 GREY LANG
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3.5 GREY LANGUR - Trachypithecus cr
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3.5 GREY LANGUR - Trachypithecus cr
Page 101 and 102: Vu Quang National Park (HA TINH) Sp
Page 103 and 104: Ha Tay Province 20 O 34’-21 O 17
Page 105 and 106: 3.6. Indochinese Silvered langur
Page 107 and 108: 3.6 Indochinese Silvered langur Tra
Page 109 and 110: 3.6 INDOCHINESE SILVERED LANGUR - T
Page 115 and 116: 4.0. Douc langurs
Page 117 and 118: 4. Douc langurs 4.0 An introduction
Page 119 and 120: 4 DOUC LANGURS Groups are character
Page 121 and 122: 4.1.2 Black-shanked douc langur Pyg
Page 123 and 124: 4 DOUC LANGURS DISTRIBUTION OF RED-
Page 125 and 126: 4 DOUC LANGURS DISTRIBUTION OF BLAC
Page 127 and 128: 4 DOUC LANGURS One infant skull (IE
Page 129 and 130: 4 DOUC LANGURS Bach Ma National Par
Page 131 and 132: 4 DOUC LANGURS My Town and Ro Villa
Page 133 and 134: 4 DOUC LANGURS very poor secondary
Page 135 and 136: A Yun Pa Nature Reserve (GIA LAI) S
Page 137 and 138: Krong No District (DAK LAK) Special
Page 139 and 140: 4 DOUC LANGURS The Ra Glai minority
Page 141 and 142: Dinh Quan District (DONG NAI) Speci
Page 143 and 144: 4 DOUC LANGURS Obviously there are
Page 145: 4 DOUC LANGURS ✱ The establishmen
Page 148 and 149: 2 3 1 1. Tonkin snub-nosed monkey;
Page 150 and 151: Vietnam Primate Conservation Status
Page 168 and 169: 5 2 3 1 4 6 1. Hunters with living
Page 173 and 174: 7.0. Conservation Policy
Page 175 and 176: 7. Conservation policy 7.1 Hunting
Page 177 and 178: The aims of an ex-situ programme sh
Page 179 and 180: 7 CONSERVATION POLICY Table 7.4-1 R
Page 181 and 182: 8. References 8 REFERENCES Adler, H
Page 183 and 184: 8 REFERENCES Boonratana, R., and Le
Page 185 and 186: 8 REFERENCES Dao Van Tien. 1970. Su
Page 187 and 188: 8 REFERENCES Fooden, J. 1976a. Prov
Page 189 and 190: 8 REFERENCES Hill, W. C. O. 1934. A
Page 191 and 192: 8 REFERENCES Le Khac Quyet and Trin
Page 193 and 194: 8 REFERENCES Lippold, L. K. 1995a.
Page 195 and 196: Monestrol, H. (ed.). 1952. Chasses
Page 197 and 198: 8 REFERENCES Ngo Van Tri. 1999b. Th
Page 199 and 200: 8 REFERENCES Pham Nhat, Nguyen Xuan
Page 201 and 202: 8 REFERENCES Simonetta, A. 1957. Ca
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8 REFERENCES Vermeulen, J. and Whit
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Appendix 1 Leaf monkey species in t
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Appendix 2 Selected areas of high v
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8 APPENDIX: 2 the surrounding area
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8 APPENDIX: 2 Forests in the southe
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Ke Go Nature Reserve (HA TINH) Spec
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8 APPENDIX: 2 was decreed with a to
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8 APPENDIX: 2 Elevation: reaching 1
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8 APPENDIX: 2 regeneration of everg
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Appendix 3 IUCN RED LIST CATEGORIES
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EXTINCT (EX) A taxon is Extinct whe
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B Extent of occurrence estimated to
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D Population estimated to number le
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The Primate Conservation Status Rev
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