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close| Location | Mali, Mopti |
| Central coordinates | 4o 43.00' West 14o 40.00' North |
| IBA criteria | A4i, A4iii |
| Area | 8,000 ha |
| Altitude | 267 m |
| Year of IBA assessment | 2001 |
Ornithological information See Box for key species. There are two major heron breeding colonies, 1.5 km apart, included within this site. In both 1985 and 1986 these sites together held over 30,000 pairs of herons of 10 species.
Site description Koumbé Niasso lies between the towns of Toguéré-Koumbé and Ténenkou on the western side of the Inner Delta of the Niger. It is situated to the east of the Diaka river, about 15 km south of Séri (site ML011). The site includes an area of seasonally flooded Acacia woodland surrounded by flooded grassland, seasonal agricultural land and permanent water-bodies in the deeper depressions. The site is defined as a circular area with a diameter of 10 km, centred on the woodland which, in 1986, was reported to be increasing in extent.
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Glossy Ibis Plegadis falcinellus | winter | 1985 | 2,800 individuals | - | A4i | Least Concern |
| Black-crowned Night-heron Nycticorax nycticorax | winter | 2000 | 3,000 individuals | - | A4i | Least Concern |
| Cattle Egret Bubulcus ibis | resident | 1985 | 17,000 breeding pairs | - | A4i | Least Concern |
| Cattle Egret Bubulcus ibis | winter | 1999 | 54,662 individuals | - | A4i | Least Concern |
| Great Egret Casmerodius albus | breeding | 1985 | 1,600 breeding pairs | - | A4i | Least Concern |
| Intermediate Egret Mesophoyx intermedia | breeding | 1985 | 530 breeding pairs | - | A4i | Least Concern |
| Reed Cormorant Phalacrocorax africanus | breeding | 1985 | 14,000 breeding pairs | - | A4i | Least Concern |
| A4iii Species group - waterbirds | breeding | 1985 | - | unknown | A4iii | |
| A4iii Species group - waterbirds | winter | - | - | unknown | A4iii |
Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Artificial landscapes (terrestrial) | 95% | |
| Grassland | 4% |
Land use
| Land-use | Extent (% of site) |
|---|---|
| agriculture | - |
| other | - |
| Notes: Firewood collection. | |
Other biodiversity None known to BirdLife International.
Management considerations The purpose of including an area surrounding the core woodland is to provide a buffer zone to prevent excessive disturbance and to allow for the further regeneration of woodland. The birds breeding at the site use a larger area of up to 30 km radius to feed, but much of this is agricultural land which does not require protection or any particular management for conservation. As with other woodland sites within the Sahelian region of Mali, this site is threatened by clearance for fuelwood, overgrazing by goats and by clearance for rice cultivation. The importance of the site as a breeding colony also depends upon the annual flood continuing to reach the woodland.
Related state of the world's birds case studies
References Altenburg et al. (1986), Skinner et al. (1987).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Koumbé Niasso. Downloaded from http://www.birdlife.org on 25/05/2013
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