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Mekong Wagtail Motacilla samveasnae

IUCN Red List Criteria

Near Threatened (criteria nearly met) A3bc;C1+2a(ii) 

IUCN Red List history

Year Category
2012 Near Threatened
2008 Near Threatened
2004 Near Threatened
2002 Near Threatened
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type continent
Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 37,900 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 6000-15000 poor Suspected 2008
Population trend Decreasing poor -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 4.7 - - -
Population justification: A preliminary population estimate of 10,000-19,999 individuals assumes that the species's population is moderately small owing to its highly specialised habitat requirements and restricted distribution. This estimate equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.
Trend justification: Moderately rapid declines are suspected to take place in the next three generations owing to the proposed construction of a number of dams, which will almost certainly impact upon the species's specialised habitat.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Cambodia Native Extant Yes      
Laos Native Extant Yes      
Thailand Native Extant   Yes    
Vietnam Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Cambodia Lomphat site factsheet
Cambodia Mekong River from Kratie to Lao PDR site factsheet
Cambodia Sekong River site factsheet
Cambodia Sesan River site factsheet
Laos Mekong River from Phou Xiang Thong to Siphandon site factsheet
Laos Siphandon site factsheet
Laos Xe Kong Plains site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Shrubland Subtropical/Tropical Moist major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) major resident
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Natural system modifications Dams & water management/use / Dams (size unknown) Timing Scope Severity Impact
Future Majority (50-90%) Rapid Declines Low Impact: 5
Stresses
Ecosystem degradation
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Future Majority (50-90%) Rapid Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Motacilla samveasnae. Downloaded from http://www.birdlife.org on 01/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 01/08/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Near Threatened
Family Motacillidae (Wagtails and pipits)
Species name author Duckworth, Alström, Davidson, Evans, et al., 2001
Population size 6000-15000 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 37,900 km2
Country endemic? No
Links to further information
- Summary information on this species