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

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Vietnam Primate Conservation Status Review Part 2: LEAF MONKEYS 106 External measurements (adult) There is only scarce information about the measurement because of the confusion of the identification. 3.6.3 Distribution The Indochinese Silvered langur occurs from Kanchanaburi west to the sea of Burma in a narrow strip; southeastern Thailand as far north as Loei; Cambodia; and southern Vietnam (Groves, 2001). Distribution in Lao PDR The species is widespread in southern Lao PDR, where it has been found in at least seven survey areas (Duckworth et al., 1999). Its occurrence is confirmed north to Xe Bang-Nouan NBCA (Saravanne Province) at 15 O 45’N. Local people reported “grey langur” sightings from two sites north of the confirmed range. Indochinese Silvered langurs provisionally identified in the Nam Phoun NBCA (Boonratana, 1998) would represent a large northward extension of the known range and it’s a mistake (Brandon- Jones in lit., 1999). Distribution in Cambodia The range of Indochinese Silvered langurs in Cambodia may be widespread (Corbet & Hill, 1992). During the last FFI surveys in the country (Timmins & Men Soriyun, 1998; Long et al., 2000b; Long et al., 2000c), the species was recorded in southern Ratanakiri Province, the Cardamom Mountains and in northeastern Mondulkiri Province. Distribution appeared to be patchy in the Cardamom Mountains and Silvered langurs were only found in lowland evergreen forest. In southern Ratanakiri and northeastern Mondulkiri Province, a large area dominated by a dry deciduous forest, distribution is fragmented and restricted to patches of riverine evergreen forest. Distribution in Vietnam n mm Average Source Head/Body length male 1 587 587 Flower, in Elliot, 1912 Tail length male 1 800 800 Flower, in Elliot, 1912 male/female 6 720 - 838 ? Groves, 2001 T. germaini is known from Quang Tri Province at 16 O 37’N latitude to the Mekong delta. The occurrence of this species further north in Tuyen Hoa District (Quang Binh Province)(Dao Van Tien, undated MS) is disputed by Fooden (1996). Osgood (1932) found as questionable the record in Lao Bao (Quang Tri Province). In fact, there are no reliable reports in Vietnam between 16 O 37’N and 14 O 30’N. Despite a number of surveys, the species has never been recorded in Bach Ma National Park (Thua Thien-Hue Province) and according to Do Tuoc (pers. comm., 2000), though structured interviews were carefully conducted in Quang Nam Province, no evidence of Indochinese Silvered langurs was reported.
3.6 INDOCHINESE SILVERED LANGUR - Trachypithecus germaini DISTRIBUTION OF INDOCHINESE SILVERED LANGUR (Trachypithecus germaini) IN VIETNAM BAŒN ÑOÀ PHAÂN BOÁ LOAØI VOOÏC BAÏC ÔŒ VIEÄT NAM 16 0 N 15 0 N 14 0 N 13 0 N 12 0 N 9 0 N 104 0 E LAOS THAILAND CAMBODIA 105 0 E CHINA VIETNAM LEGEND-CHUÙ GIAŒI Country Border / Ranh giôùi quoác gia Provincial Border / Ranh giôùi tænh Records of Indochinese Silvered langur Ghi nhaän veà vooïc baïc Until 1988 (tröôùc naêm1988) 1989-1994 / Provisional (taïm thôøi) 1995-2002 / Provisional (taïm thôøi) 1995-2002 / Confirmed (ñaõ xaùc nhaän) Protected Area / Khu baœo veä 106 0 E Lo Go Sa Maùt TAÂY NINH BÌNH PHÖÔÙC BÌNH DÖÔNG 107 0 E QUAŒNG TRÒ Dak Roâng Tam Giang THÖØA THIEÂN HUEÁ QUAŒNG NAM Chu Prong 108 0 E TP. ÑAØ NAÜNG Soâng Thanh Phuù Ninh KON TUM Ngoïc Linh QUAŒNG NGAÕI Ba Tô 109 0 E Kon Cha Rang Ñaœo Lyù Sôn Kon Ka Kinh Baéc Plei Cu BÌNH ÑÒNH Vònh Quy Nhôn GIA LAI Quy Hoùa Ñaàm Cuø Moâng Ayun Pa PHUÙ YEÂN York Ñoân Nam Ca Buø Gia Maäp Taø Ñuøng Caùt Tieân Ea Soâ Chö Hoa KHAÙNH HOØA ÑAK LAK Chö Yang Sin Bi Ñuùp Nuùi Baø LAÂM ÑOÀNG Ka Loâng Soâng Mao BÌNH THUAÄN 110 N 100 Bieån Laïc Nuùi OÂÂÂng ÑOÀNG NAI TP. HOÀ CHÍ MINH Traøm Chim Tam Noâng AN GIANG LONG AN ÑOÀNG THAÙP Tình Ñoâi Haø Tieân TIEÀN GIANG BEÁN TRE Phuù Quoác Kieân Löông VÓNH LONG BAØ RÒA VUÕNG TAØU Phuù Quùy N CAÀN THÔ KIEÂN GIANG TRAØ VINH Nam Du U Minh Thöôïng Coân Ñaœo Mom Ray 0 Hoøn Mun Ñaàm Thuœy Trieàu Röøng Khoâ Phan Rang NINH THUAÄN Cuø Lao Cau 50 100 KM 107
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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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Page 58 and 59: 1 2 3 4 1. Cat Ba langur; ad. femal
Page 60 and 61: Vietnam Primate Conservation Status
Page 71 and 72: 3.4. Delacour’s langur
Page 73 and 74: 3.4 Delacour’s langur Trachypithe
Page 75 and 76: 3.4 DELACOUR’S LANGUR - Trachypit
Page 77 and 78: 3.4.4 Delacour’s langur records 3
Page 83 and 84: Locations where Delacour’s langur
Page 85 and 86: 3.4.5 Status 3.4 DELACOUR’S LANGU
Page 87 and 88: 3.4.6 Recommendations for conservat
Page 91 and 92: 3.5. Grey langur
Page 93 and 94: 3.5 Grey langur Trachypithecus crep
Page 95 and 96: Distribution in China 3.5 GREY LANG
Page 97 and 98: 3.5 GREY LANGUR - Trachypithecus cr
Page 99 and 100: 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: 3.6 Indochinese Silvered langur Tra
Page 111 and 112: 3.6 INDOCHINESE SILVERED LANGUR - T
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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 152 and 153: DISTRIBUTION OF TONKIN SNUB-NOSED M
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5 2 3 1 4 6 1. Hunters with living
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7.0. Conservation Policy
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7. Conservation policy 7.1 Hunting
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The aims of an ex-situ programme sh
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7 CONSERVATION POLICY Table 7.4-1 R
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8. References 8 REFERENCES Adler, H
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8 REFERENCES Boonratana, R., and Le
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8 REFERENCES Dao Van Tien. 1970. Su
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8 REFERENCES Fooden, J. 1976a. Prov
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8 REFERENCES Hill, W. C. O. 1934. A
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8 REFERENCES Le Khac Quyet and Trin
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8 REFERENCES Lippold, L. K. 1995a.
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Monestrol, H. (ed.). 1952. Chasses
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8 REFERENCES Ngo Van Tri. 1999b. Th
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8 REFERENCES Pham Nhat, Nguyen Xuan
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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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