|Central coordinates||3o 55.00' West 16o 13.00' North|
|IBA criteria||A1, A4i, A4iii|
|Year of IBA assessment||2001|
Ornithological information See Box for key species. In addition, two species of the Sahel biome (A03) have been recorded from this site (see Table 2). Total counts of waterfowl made in nine years during the period 1972–1987 varied between 25,419 (1983) and 127,823 (1985).
Site description Lac Horo is a semi-permanent wetland located 60 km south-west of the town of Goundam at the northern end of the Inner Delta of the Niger, some 20 km south-west of Lac Télé (site ML004), but not directly connected with it. Under natural conditions the lake retained flood water from the Niger throughout the dry season in years of good rainfall, but otherwise dried out completely by April. Now the lake is separated from the river by a dam and sluice gate through which the flow of water from the river is controlled. The sluice is opened in mid-November to allow flood water to fill the lake and closed again when the desired level is reached. The lake edges support beds of Typha sp. and Polygonum senegalensis and open water is colonized by Nymphaea sp. and Vossia cuspidata.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Fulvous Whistling-duck Dendrocygna bicolor||winter||1984||23,000 individuals||-||A4i||Least Concern|
|Northern Pintail Anas acuta||winter||1985||27,600 individuals||-||A4i||Least Concern|
|Garganey Anas querquedula||winter||1985||31,270 individuals||-||A4i||Least Concern|
|Ferruginous Duck Aythya nyroca||winter||1987||5,600 individuals||-||A1, A4i||Near Threatened|
|Great Egret Casmerodius albus||winter||1999||560 individuals||-||A4i||Least Concern|
|Black-winged Stilt Himantopus himantopus||winter||1978||1,600 individuals||-||A4i||Least Concern|
|Black-tailed Godwit Limosa limosa||winter||1985||6,200 individuals||-||A4i||Near Threatened|
|Ruff Philomachus pugnax||winter||1978||32,000 individuals||-||A4i||Least Concern|
|Caspian Tern Sterna caspia||winter||1979||2,000 individuals||-||A4i||Least Concern|
|White-winged Tern Chlidonias leucopterus||winter||1980||3,000 individuals||-||A4i||Least Concern|
|Yellow-breasted Barbet Trachyphonus margaritatus||resident||1997||-||-||Least Concern|
|Chestnut-bellied Starling Lamprotornis pulcher||resident||1997||-||-||Least Concern|
|A4iii Species group - waterbirds||winter||-||-||unknown||A4iii|
|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||18,900|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Artificial landscapes (terrestrial)||22%|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
Other biodiversity None known to BirdLife International.
Management considerations Lac Horo was designated a Wetland of International Importance under the Ramsar Convention in 1987. The cultivation of millet over much of the area around the lake is bound to cause some disturbance to waterbirds and may make the site less attractive to waders, although Philomachus pugnax may prefer this man-modified habitat. In addition, the lake is fished and uncultivated parts of the margins are grazed.
Related state of the world's birds case studies
References Jones (1993), Skinner (1987).
Contribute Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.
Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Lac Horo. Downloaded from http://www.birdlife.org on 20/06/2013
To provide new information to update this factsheet or to correct any errors, please email BirdLife