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Location Mali, Mopti
Central coordinates 4o 15.00' West  15o 15.00' North
IBA criteria A3, A4i, A4iii
Area 103,100 ha
Altitude 261 - 265m
Year of IBA assessment 2001

Site description This site is part of the Inner Delta of the Niger and is located about 90 km north of Mopti, to the east of the town of Youvarou. It comprises an area of almost level flood-plain and includes a number of seasonally inundated lakes (of which Lac Débo and Lac Oualado Débo are by far the largest), ponds and river channels. In years with good rainfall the area is flooded between August and January after which the size of wetlands shrinks gradually. The grasses Echinochloa stagnina and Vossia cuspidata are dominant in seasonally flooded areas. Included in the site, to the east of Lac Oualado (=Walado or Gualado) Débo, is an area of Acacia woodland. This area was first used as a breeding site by a colony of herons and cormorants in 1985, the breeding season coinciding with the time of the flood.

Key Biodiversity See Box and Table 2 for key species. In addition, it is possible that Prinia fluviatilis (Data Deficient), may occur in marginal vegetation. Total counts of waterfowl made in 12 years during the period 1977–1998 varied between 26,446 (1980) and 534,552 (1994).

Non-bird biodiversity: None known to BirdLife International.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta winter  1994  150,000 individuals  A4i  Least Concern 
Fulvous Whistling-duck Dendrocygna bicolor winter  1994  19,100 individuals  A4i  Least Concern 
Spur-winged Goose Plectropterus gambensis winter  2000  11,000 individuals  A4i  Least Concern 
Garganey Spatula querquedula winter  1994  272,500 individuals  A4i  Least Concern 
Glossy Ibis Plegadis falcinellus winter  1996  16,000 individuals  A4i  Least Concern 
African Spoonbill Platalea alba winter  2000  765 individuals  A4i  Least Concern 
Cattle Egret Bubulcus ibis resident  1986  12,000 breeding pairs  A4i  Least Concern 
Cattle Egret Bubulcus ibis winter  1994  260,000 individuals  A4i  Least Concern 
Egretta garzetta winter  2000  4,002 individuals  A4i  Not Recognised 
Mesophoyx intermedia winter  2000  1,501 individuals  A4i  Not Recognised 
Black-crowned Night-heron Nycticorax nycticorax winter  2000  6,750 individuals  A4i  Least Concern 
Squacco Heron Ardeola ralloides winter  1996  5,120 individuals  A4i  Least Concern 
Purple Heron Ardea purpurea winter  2000  4,171 individuals  A4i  Least Concern 
Great White Egret Ardea alba breeding  1986  630 breeding pairs  A4i  Least Concern 
Great White Egret Ardea alba winter  1999  4,563 individuals  A4i  Least Concern 
Black Heron Egretta ardesiaca winter  1998  510 individuals  A4i  Least Concern 
Great White Pelican Pelecanus onocrotalus winter  1983  5,500 individuals  A4i  Least Concern 
Long-tailed Cormorant Microcarbo africanus resident  1986  4,400 breeding pairs  A4i  Least Concern 
Long-tailed Cormorant Microcarbo africanus winter  2000  59,000 individuals  A4i  Least Concern 
Purple Swamphen Porphyrio porphyrio winter  2000  580 individuals  A4i  Least Concern 
Himantopus himantopus winter  1994  5,299 individuals  A4i  Not Recognised 
Common Ringed Plover Charadrius hiaticula winter  1998  6,057 individuals  A4i  Least Concern 
Kittlitz's Plover Charadrius pecuarius winter  2000  11,834 individuals  A4i  Least Concern 
Black-tailed Godwit Limosa limosa winter  1999  26,852 individuals  A4i  Near Threatened 
Spotted Redshank Tringa erythropus winter  1999  4,431 individuals  A4i  Least Concern 
Little Stint Calidris minuta winter  1998  17,666 individuals  A4i  Least Concern 
Ruff Calidris pugnax winter  1992  45,000 individuals  A4i  Least Concern 
Collared Pratincole Glareola pratincola winter  1994  8,254 individuals  A4i  Least Concern 
Sterna nilotica winter  1998  1,948 individuals  A4i  Not Recognised 
Grey-headed Gull Larus cirrocephalus winter  1983  1,000 individuals  A4i  Least Concern 
Caspian Tern Hydroprogne caspia winter  2000  3,193 individuals  A4i  Least Concern 
Whiskered Tern Chlidonias hybrida winter  2000  3,600 individuals  A4i  Least Concern 
White-winged Tern Chlidonias leucopterus winter  1997  3,800 individuals  A4i  Least Concern 
African Collared-dove Streptopelia roseogrisea resident  1997  present  A3  Least Concern 
Sahelian Woodpecker Dendropicos elachus resident  1997  present  A3  Least Concern 
Cricket Longtail Spiloptila clamans resident  1997  present  A3  Least Concern 
Chestnut-bellied Starling Lamprotornis pulcher resident  1997  present  A3  Least Concern 
Black Scrub-robin Cercotrichas podobe resident  1997  present  A3  Least Concern 
Sudan Golden Sparrow Passer luteus resident  1997  present  A3  Least Concern 
A4iii Species group - waterbirds winter  500,000-999,999 individuals  unknown  A4iii   

IBA Monitoring

2001 high not assessed not assessed
Good - based on reliable and complete / representative data

Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium
Over-exploitation, persecution and control of species habitat effects - gathering plants happening now some of area/population (10-49%) moderate to rapid deterioration high

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Delta Intérieur du Niger Wetlands of International Importance (Ramsar) 4,119,500 protected area contains site 103,100  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   67%
Wetlands (inland)   28%
Shrubland   1%
Grassland   2%

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -
other -
Notes: Cutting of wood for fuel.

References Altenburg et al. (1986), Jones (1993).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Lac Débo - Lac Oualado Débo. Downloaded from on 26/11/2014

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