• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2016	Near Threatened	A3cde
2012	Near Threatened	A3cde
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	5,770,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	10000-19999 mature individuals	poor	suspected	2016
Population trend	decreasing	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Generation length	8.9 years	-	-	-

Population justification: The population size is difficult to determine. Waterbird Population Estimates provides an estimated population size of 1-25,000 individuals for the period 1987-1991 (Wetlands International 2016). The population may possibly number no more than 15,000 individuals (Wiersma and Kirwan 2016). The population is therefore placed in the band 10,000-19,999 mature individuals roughly equivalent to 15,000-29,999 individuals.

Trend justification: The current population trend is difficult to determine because of uncertainty over the extent of threats to the species; however, it is expected to undergo a moderately rapid population decline overall during the next three generations, owing to the impacts of human pressures on riverine ecosystems and multiple dam construction projects. In Cambodia the population has undergone declines; in Sesan the population decreased from 223 birds in 1998 to 102 in 2003 and 60 birds (river survey length slightly shorter than in previous surveys) in 2010 (Goes 2014). Breeding success in all populations in Cambodia is reportedly low owing to multiple human-related threats (Goes 2014). Construction of the Don Sahong Mekong-mainstream dam in southern Laos could compound could contribute to further population declines (Goes 2014).

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bangladesh	extant	native	yes
Bhutan	extant	native	yes
Cambodia	extant	native	yes
China (mainland)	extant	native	yes
India	extant	native	yes
Laos	extant	native	yes
Myanmar	extant	native	yes
Nepal	extant	native	yes
Thailand	extant	native	yes
Vietnam	extant	native	yes

Country/Territory	IBA Name
Cambodia	Sesan River
Laos	Mekong River from Luang Prabang to Vientiane
Laos	Nakai Plateau
Laos	Upper Lao Mekong

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Aquatic & Marine	Artificial/Aquatic - Water Storage Areas (over 8ha)	suitable	resident
Artificial/Terrestrial	Arable Land	suitable	resident
Wetlands (inland)	Permanent Freshwater Lakes (over 8ha)	suitable	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	major	resident
Altitude		Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Future		Minority (<50%)		Negligible declines		No/Negligible Impact: 2
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Reduced reproductive success, Species mortality
Human intrusions & disturbance	Work & other activities	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Species disturbance, Reduced reproductive success
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Canis familiaris	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Unspecified species	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem degradation, Reduced reproductive success
Invasive and other problematic species, genes & diseases	Problematic native species/diseases	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Reduced reproductive success
Natural system modifications	Dams & water management/use - Large dams	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Rapid Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion, Reduced reproductive success

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Recommended citation
BirdLife International (2024) Species factsheet: River Lapwing Vanellus duvaucelii. Downloaded from https://datazone.birdlife.org/species/factsheet/river-lapwing-vanellus-duvaucelii on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/11/2024.