Sri Nan (15087)
Thailand, Asia
Site overview
KBA status: confirmed
Year of last assessment: 2012
National site name: Sri Nan
Central coordinates: Latitude: 18.0833, Longitude: 100.8333
System: terrestrial
Elevation (m): 160 to 1234
Area of KBA (km2): 791.85507
Protected area coverage (%): 87.35
KBA classification: Global/Regional TBD
Legacy site: Yes
Site details
Site description: The IBA comprises Sri Nan proposed national park, which borders Lao P.D.R. and is contiguous with Mae Jarim Wildlife Sanctuary (IBA TH009) to the south-east and Mae Jarim proposed national park (IBA TH010) to the north. The topography of the site is predominantly hilly. The site straddles the Lam Nam Nan river and contains the reservoir of Sirikit dam, which the river feeds. The principle habitat at the site is mixed deciduous forest, which covers over 70,000 ha. Deciduous dipterocarp forest predominates on the lower slopes, covering c. 13,600 ha, with some hill evergreen forest above 1,000 m asl and coniferous forest along ridges between 500 and 1,200 m asl.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas) The site has been reviewed and re-confirmed as a KBA in the process of compiling the revised 2011 CEPF Ecosystem Profile for the Indo-Burma Hotspot.
Additional biodiversity: Sri Nan is an important site for the globally threatened Green Peafowl Pavo muticus. Surveys between 1999 and 2002 estimated a population of less than 100 individuals, shared among Sri Nan and two contiguous IBAs: Mae Jarim Wildlife Sanctuary (TH009) and Mae Jarim proposed national park (TH010). Most birds occur at Sri Nan, on either side of the Nan river, from Huai Rahoy downstream to the Sirikit dam, between 100 and 600 m asl. The site also supports a significant population of the globally near-threatened Siamese Fireback Lophura diardi. Non-bird biodiversity: Plants Afzelia xylocarpa (EN) Dalbergia oliveri (EN)
Habitats
Summary of habitats in KBA: The IBA comprises Sri Nan proposed national park, which borders Lao P.D.R. and is contiguous with Mae Jarim Wildlife Sanctuary (IBA TH009) to the south-east and Mae Jarim proposed national park (IBA TH010) to the north. The topography of the site is predominantly hilly. The site straddles the Lam Nam Nan river and contains the reservoir of Sirikit dam, which the river feeds. The principle habitat at the site is mixed deciduous forest, which covers over 70,000 ha. Deciduous dipterocarp forest predominates on the lower slopes, covering c. 13,600 ha, with some hill evergreen forest above 1,000 m asl and coniferous forest along ridges between 500 and 1,200 m asl.
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Forest | 50 | |
| Wetlands(Inland) | 50 |
Threats
Summary of threats to biodiversity at KBA: Much of the forest at the site is within easy access of the local communities, and there are patches of shifting cultivation within the site. Consequently, major threats to biodiversity include agricultural encroachment, forest fire and hunting.
Additional information
References: BirdLife International (1998) Proceedings of the Thailand IBA workshop, Bangkok, November 1998. Unpublished report. Meckvichai, W. (1999-2001) Biodiversity research plan and management guidelines for the conservation of pheasants in northern Thailand. Unpublished report. National Park Division (2001) National parks in Thailand. Bangkok: Office of Natural Resource Conservation, Royal Forestry Department. Weingeoam, S. (undated) Survey for the establishment of Sri Nan National Park. Bangkok: Division of Wildlife Conservation, Royal Forestry Department. (In Thai.)