TH034
Khao Ang Ru Nai Wildlife Sanctuary
Khao Ang Ru Nai Wildlife Sanctuary
Province(s):
Chachoengsao, Chanthaburi,
Rayong, Sa Kaeo, Chonburi
PA Status:
Wildlife Sanctuary (1977)
EBA / SA:
none
Forest Complex: Lower Eastern
Latitude:
Longitude:
Area:
Altitude Range:
Criteria: A1, A3
13º14'N
101º45'E
103,000 ha
90-802 m asl
General Description
The IBA comprises Khao Ang Ru Nai Wildlife Sanctuary in south-eastern Thailand. The site is contiguous with
Khao Soi Dao Wildlife Sanctuary (IBA TH033) to the east. The topography of the site is characterised by level
lowlands and low hills dissected by large streams. The site supports the largest block of semi-evergreen forest and
evergreen forest on level lowlands remaining in Thailand; however, much of this forest block has been selectively
logged. The site also supports some mixed deciduous forest and there are a few limestone outcrops in the south. The
site experiences high rainfall, receiving the brunt of the south-west monsoon off the Gulf of Thailand, and supports
high levels of plant diversity.
Bird Fauna: Key Features
Khao Ang Ru Nai Wildlife Sanctuary is a wintering site for the globally threatened Silver Oriole Oriolus mellianus.
A second globally threatened species, Lesser Adjutant Leptoptilos javanicus, has also been recorded at the site but is
not thought to regularly occur in significant numbers, while the globally endangered Greater Adjutant Leptoptilos
dubius is known from an historical record from 1984. The site also supports three globally near-threatened species:
Siamese Fireback Lophura diardi, Great Hornbill Buceros bicornis and Moustached Hawk Cuckoo Hierococcyx
vagans. The site supports a number of species characteristic of the Indochinese element of the Thai avifauna,
including Coral-billed Ground Cuckoo Carpococcyx renauldi and Malayan Night-Heron Gorsachius melanolophus,
both of which are national threatened, and Eastern Green Magpie Cissa hypoleuca, which is restricted within
Thailand to a few hills in the south-east of the country.
Species
Season
Global
Threat
Status
VU
IBA
Criteria
Notes
†Lesser Adjutant
N
A1
The species is a very rare non-breeding visitor to the site.
Leptoptilos javanicus
Silver Oriole
W
VU
A1
The species is an uncommon winter visitor to the site.
Oriolus mellianus
Notes: † = not confirmed to regularly occur in significant numbers.
Biome-restricted Species: The site qualifies under criterion A3 because it supports six species restricted to the
Sino-Himalayan Subtropical Forests (Biome 08). See Appendix 3 for details.
Other Globally Threatened Species
Mammals
Species
Banteng Bos javanicus
Asian Elephant Elephas maximus
Tiger Panthera tigris
Gaur Bos frontalis
Status
EN
EN
EN
VU
Species
Status
Asian Golden Cat Catopuma temminckii
VU
Dhole Cuon alpinus
VU
Northern Pig-tailed Macaque Macaca leonina
VU
Fishing Cat Prionailurus viverrinus
VU
Reptiles
Species
Siamese Crocodile Crocodylus siamensis
Status
CR
Threats to Biodiversity
Hunting, exploitation of forest products, forest fire and agricultural encroachment are the main threats to
biodiversity at the site. Approximately 5% of the site has been encroached by agriculture, chiefly shifting
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Directory of Important Bird Areas in the Kingdom of Thailand
TH034
Khao Ang Ru Nai Wildlife Sanctuary
cultivation. The mitigation of these threats is complicated by the presence of a resident human population within the
wildlife sanctuary.
Literature and Data Sources
BirdLife International (1998) Proceedings of the Thailand IBA workshop, Bangkok, November 1998. Unpublished
report.
BirdLife International (2001) Threatened birds of Asia: the BirdLife International Red Data Book. Cambridge, UK:
BirdLife International.
Kreetiyutanont, K. (1995) Progress report on Siamese Crocodile Crocodylus siamensis in Khao Ang Rue Nai
Wildlife Sanctuary. Natural History Bulletin of the Siam Society 2: 135-136.
Round, P. D. (1988) Resident forest birds in Thailand: their status and conservation. Cambridge, UK: International
Council for Bird Preservation.
UNEP/World Conservation Monitoring Center website http//:www.wcmc.org.uk/protected_areas
Wildlife Conservation Division (2000) Basic data for wildlife sanctuaries in Thailand. Bangkok: Office of Natural
Resources Conservation, Forestry Department.
Directory of Important Bird Areas in the Kingdom of Thailand
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