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

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Vietnam Primate Conservation Status Review Part 2: LEAF MONKEYS 220 Figure 1. The twenty countries with the largest numbers of threatened mammal species (Hilton-Taylor, 2000). Indonesia India Brazil China Mexico Papua New Guinea Australia Philippines Madagascar Kenya Peru Malaysia Congo, Dem. Republic of Tanzania Viet Nam Cameroon South Africa Russian Federation Colombia Ethiopia Figure 2. The twenty countries with the largest numbers of threatened mammal species, with their numbers as a percentage of total mammal diversity found in each country (Hilton-Taylor, 2000). Indonesia India Brazil China Mexico Papua New Guinea Australia Philippines Madagascar Kenya Peru Malaysia Congo, Dem. Republic of Tanzania Viet Nam Cameroon South Africa Russian Federation Colombia Ethiopia 0 40 80 120 Number of threatened mammals 0 10 20 30 40 Threatened mammal species as a percentage of total diversity VU EN CR
EXTINCT (EX) A taxon is Extinct when there is no reasonable doubt that the last individual has died. 8 APPENDIX: 3 EXTINCT IN THE WILD (EW) A taxon is Extinct in the wild when it is known only to survive in cultivation, in captivity or as a naturalized population (or populations) well outside the past range. A taxon is presumed extinct in the wild when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form. CRITICALLY ENDANGERD (CR) A taxon is Critically Endangered when it is facing an extremly high risk of extinction in the wild in the immediate future, as defined by any of the criteria (A to E). ENDANGERED (EN) A taxon is Endangered when it is not Critically Endangered but is facing a very high risk of extinction in the wild in the near future, as defined by any of the criteria (A to E). VULNERABLE (VU) A taxon is Vulnerable when it is not Critically Endangered or Endangered but is facing a high risk of extinction in the wild in the medium-term future, as defined by any of the criteria (A to E). LOWER RISK (LR) A taxon is Lower Risk when it has been evaluated, does not satisfy the criteria for any of the categories Critically Endangered, Endangered or Vulnerable. Taxa included in the Lower Risk category can be separated into three subcategories: ✱ Conservation Dependent (cd). Taxa which are the focus of a continuing taxon-specific or habitat-specific conservation programme targeted towards the taxon in question, the cessation of which would result in the taxon qualifying for one of the threatened categories above within a period of five years. ✱ Near Threatened (nt). Taxa which do not qualify for Conservation Dependent, but which are close to qualifying for Vulnerable. ✱ Least Concern (lc). Taxa which do not qualify for Conservation Dependent or Near Threatened. DATA DEFICIENT (DD) A taxon is Data Deficient when there is inadequate information to make a direct or indirect assessment of its risk of extinction based on its distribution and/or population status. A taxon in this category may be well studied, and its biology well known, but appropriate data on abundance and/or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk. Listing of taxa in this category indicates that more information is required and acknowledges the possibility that future research will show that threatened classification is appropriate. It is important to make positive use of whatever data are available. In many cases great care should be exercised in choosing between DD and threatened status. If the range of a taxon is suspected to be relatively circumscribed, if a considerable period of time has elapsed since the last record of the taxon, threatened status may well be justified. NOT EVALUATED (NE) A taxon is Not Evaluated when it is has not yet been assessed against the criteria. 221
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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
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Vu Quang National Park (HA TINH) Sp
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Ha Tay Province 20 O 34’-21 O 17
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3.6. Indochinese Silvered langur
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3.6 Indochinese Silvered langur Tra
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3.6 INDOCHINESE SILVERED LANGUR - T
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4.0. Douc langurs
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4. Douc langurs 4.0 An introduction
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4 DOUC LANGURS Groups are character
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4.1.2 Black-shanked douc langur Pyg
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4 DOUC LANGURS DISTRIBUTION OF RED-
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4 DOUC LANGURS DISTRIBUTION OF BLAC
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4 DOUC LANGURS One infant skull (IE
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4 DOUC LANGURS Bach Ma National Par
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4 DOUC LANGURS My Town and Ro Villa
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4 DOUC LANGURS very poor secondary
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A Yun Pa Nature Reserve (GIA LAI) S
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Krong No District (DAK LAK) Special
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4 DOUC LANGURS The Ra Glai minority
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Dinh Quan District (DONG NAI) Speci
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4 DOUC LANGURS Obviously there are
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4 DOUC LANGURS ✱ The establishmen
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2 3 1 1. Tonkin snub-nosed monkey;
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DISTRIBUTION OF TONKIN SNUB-NOSED M
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5 2 3 1 4 6 1. Hunters with living
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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
Page 203 and 204: 8 REFERENCES Vermeulen, J. and Whit
Page 205 and 206: Appendix 1 Leaf monkey species in t
Page 207 and 208: Appendix 2 Selected areas of high v
Page 209 and 210: 8 APPENDIX: 2 the surrounding area
Page 211 and 212: 8 APPENDIX: 2 Forests in the southe
Page 213 and 214: Ke Go Nature Reserve (HA TINH) Spec
Page 215 and 216: 8 APPENDIX: 2 was decreed with a to
Page 217 and 218: 8 APPENDIX: 2 Elevation: reaching 1
Page 219 and 220: 8 APPENDIX: 2 regeneration of everg
Page 221: Appendix 3 IUCN RED LIST CATEGORIES
Page 225 and 226: B Extent of occurrence estimated to
Page 227 and 228: D Population estimated to number le
Page 230: The Primate Conservation Status Rev
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