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Location Thailand, Chiang Mai,Mae Hong Son
Central coordinates 98o 40.00' East  19o 15.00' North
IBA criteria A1, A3
Area 62,640 ha
Altitude 650 - 2,005m
Year of IBA assessment 2004

Bird Conservation Society of Thailand

Site description The IBA comprises Mae Lao-Mae Sae Wildlife Sanctuary (51,440 ha) and Doi Sam Meaun (11,200 ha), a mountain that lies within the southern part of the adjacent Huai Nam Dang National Park. The topography of the site is dominated by rolling hills of low to medium elevation. There are several peaks above 1,000 m asl, and the site includes the headwaters of several tributaries of the Lam Nam Mae Teang and Lam Nam Mae Sa rivers. The site supports a range of forest types, including moist evergreen forest along some watercourses and hill evergreen forest on slopes above c.800 m asl. Mixed deciduous forest is found at lower elevations, with coniferous forest and dry evergreen forest along the drier ridges. Extensive areas at mid elevations have been cleared for shifting cultivation, particularly on Doi Sam Meaun. Watershed development projects exist in four parts of the site: Mae Jok Luang, Mae Sae, Thung Jor and Mon Un Kaet.

Key Biodiversity Three globally threatened species are known to occur at the IBA, comprising two residents (Mrs Hume's Pheasant Syrmaticus humiae and Giant Nuthatch Sitta magna) and one winter visitor (Grey-sided Thrush Turdus feae). The site supports a rich montane bird community, including 24 species restricted to the Sino-Himalayan Subtropical Forests (Biome 08). Furthermore, the site supports the globally near-threatened White-rumped Falcon Polihierax insignis, a nationally threatened species. The site qualifies under criterion A3 because it supports seven species restricted to the Sino-Himalayan Temperate Forests (Biome 07) and 24 species restricted to the Sino-Himalayan Subtropical Forests (Biome 08).

Non-bird biodiversity: Mammals Southern Serow Capricornis sumatraensis (VU) Long-tailed Goral Naemorhedus caudatus (VU)

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Mrs Hume's Pheasant Syrmaticus humiae resident  2004  present  A1  Near Threatened 
Giant Nuthatch Sitta magna resident  2004  present  A1  Endangered 
Grey-sided Thrush Turdus feae winter  2004  present  A1  Vulnerable 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Huay Nam Dang National Park 122,998 protected area overlaps with site 12,891  
Mae Luo - Mae Sa Wildlife Sanctuary 50,890 protected area contained by site 50,890  


IUCN habitat Habitat detail Extent (% of site)
Forest   -

References 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. Meckvichai, W. (1999-2001) Biodiversity research plan and management guidelines for the conservation of pheasants in northern Thailand. Unpublished report. Tontithadapituck, S. (2002) Recent records of birds in Doi Sam Muaen, Huai Nam Dong National Park (29 December 2002 to 1 January 2003). Unpublished report. Wildlife Conservation Division (2000) Basic data for wildlife sanctuaries in Thailand. Bangkok: Office of Natural Resources Conservation, Forestry Department.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Mae Lao - Mae Sae. Downloaded from on 28/10/2016

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