Upper Stung Sen Catchment

IBA Criteria

Year of most recent IBA criteria assessment: 2003

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Green Peafowl Pavo muticus EN resident 2001 common A1
Sarus Crane Grus antigone VU resident 2001 common A1
Greater Adjutant Leptoptilos dubius EN unknown 2001 uncommon A1
Lesser Adjutant Leptoptilos javanicus VU resident 2001 common A1
White-shouldered Ibis Pseudibis davisoni CR resident 2001 rare A1
Giant Ibis Thaumatibis gigantea CR resident 2001 rare A1, A4i
Greater Spotted Eagle Clanga clanga VU winter 2001 uncommon A1

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2008 high unfavourable medium
Was the whole site covered? No State assessed by Habitat
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - small-holder farming happening now majority/most of area/population (50-90%) slow but significant deterioration high
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now small area/few individuals (<10%) slow but significant deterioration low
Residential and commercial development housing and urban areas happening now small area/few individuals (<10%) slow but significant deterioration low
Transportation and service corridors roads and railroads happening now small area/few individuals (<10%) no or imperceptible deterioration low

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Artificial/Terrestrial Rice paddies 0 0 moderate (70-90%) moderate (70-90%) unfavourable
Shrubland 0 0 moderate (70-90%) moderate (70-90%) unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity medium
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Preah Vihear Temple Protected Landscape 4,082 protected area overlaps with site 5,000
Preah Vihear Protected Forest 190,028 protected area overlaps with site 0
Kulen Promtep Wildlife Sanctuary 406,825 protected area overlaps with site 285,000


IUCN Habitat Habitat detail Extent (% of site)
Forest Lowland evergreen rain forest (tropical), Semi-evergreen rain forest (tropical), Dry deciduous forest (tropical) -
Shrubland Secondary scrub -
Grassland Edaphic grassland, Secondary grassland -
Wetlands (inland) Freshwater lakes and pools, Ephemeral wetlands, Riverine floodplains, Rivers and streams -
Artificial/Terrestrial Rice paddies, Perennial crops, orchards and groves, Small settlements, rural gardens -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
forestry -
military -
nature conservation and research -
other -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Upper Stung Sen Catchment. Downloaded from on 12/04/2021.