Na Hang Nature Reserve, Tat Ke Sector - Frontier-publications.co.uk

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Na Hang Nature Reserve, Tat Ke Sector 1997 northern Vietnam and southern China, and its known range includes Cao Bang, Bac Thai and Hoa Binh (although not Tuyen Quang) provinces (RDB, 1992). Overall, the most important threat to reptile species in Vietnam is habitat loss. However, collection of live animals for trade particularly affects certain species (for example, forest tortoises and the Tokay (Tac ke) Gecko, Gekko gekko), and occurs even within nature reserves such as Na Hang (see Hill and Kemp, 1996). In addition, snakes are often killed on sight when encountered close to villages or on roads and tracks, although such casual predation probably has the greatest impact on commoner species and therefore causes little long-term damage of more endangered populations. Within reserves, where forest habitat has some protection, it is important that hunting of reptiles is curtailed to allow populations of endangered species in these areas to remain healthy. Frontier-Vietnam Environment Research Report 9 34
Na Hang Nature Reserve, Tat Ke Sector 1997 10 0 BIRDS 10.1 Introduction Two previous surveys of bird species in the reserve area have been carried out. The first, by the Institute for Ecology and Biological Research, Hanoi (IEBR) in 1993 (Dang Huy Huyen et al., 1993; Cox et al.,1994), compiled a list including 143 species seen during the survey or known from historical records for the Eastern part of Na Hang district. The second was carried out by The Society for Environmental Exploration (SEE) at the start of 1996 and indentified 171 species in the field (Hill and Kemp, 1996). Together, these surveys give a total of 242 species for the Na Hang area. The aim of this second phase of survey by SEE-Vietnam was to further increase knowledge of the bird species presently occuring in the Tat Ke sector of the reserve. Specific objectives were: • To produce a list of all birds identified within the reserve and assess their relative importance to biodiversity at a national and international level • To provide seasonal data for the summer months at Na Hang, as no information has previously been compiled • To measure the distribution and relative abundance of all species identified in the reserve • To record all evidence of breeding within the reserve and note any other interesting behaviour • To carry out a comparison of the bird fauna in the Tat Ke and Ban Bung sectors. 10.2 Methods For survey work, all observers used binoculars, and a 27 x 60 telescope with tripod was also available. Sighting information was recorded using a dictophone or note book. In addition to birds seen, birds identified by call, captive birds taken in the Tat Ke sector, and traces of birds (such as feathers) were also recorded. For identification, three field guides were used; Birds of South-East Asia (King et al., 1975), A Guide to the Birds of Thailand (Lekagul and Round, 1991), and Birds of Hong Kong and South China.(Viney et al., 1994). For nomenclature, Distribution and taxonomy of birds of the world (Sibley & Monroe, 1990; with supplement, 1993) was used. Observations were made in all habitat types found in the reserve (primary, secondary and bamboo forest, scrub and agricultural land) and over as much of the area of the Tat Ke sector as possible. Observations were concentrated in the forest areas around Frontier-Vietnam Environment Research Report 9 35
Page 1: Frontier Vietnam Environmental Rese
Page 4 and 5: Na Hang Nature Reserve, Tat Ke Sect
Page 70 and 71: Appendix 1. Habitat; Plants Plant s
Page 72 and 73: Species Habitat Fertile Uses/Status
Page 86 and 87: stages SONNERATIACEAE 638. Duabanga
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FOREST TRANSECT 1 Key: Ac Ao Ar Cl
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FOREST TRANSECT 3 Key: Cl Clusiacea
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Appendix 3. Forest plot data
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Myrtaceae 4 1.081 3.60 8 1.250 4.66
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Nymphalidae 32. Cethosia biblis Dru
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Appendix 4b. Butterflies recorded a
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1 2 3 4 5 25 Opsarichthys uncirostr
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Appendix 6. Amphibians and Reptiles
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A B C Upupipae: Hoopoe 14. Hoopoe (
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A B C Subfamily Muscicapinae: Flyca
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7b. Formulation used for the assess
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Appendix 8. Key; A Identified from:
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Appendix 9. List of specimens Insec
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