Boucle du Baoulé (6620)
Mali, Africa
Site overview
KBA status: confirmed
Year of last assessment: 2001
National site name: Boucle du Baoulé
Central coordinates: Latitude: 13.8667, Longitude: -8.9000
System: terrestrial
Elevation (m): 160 to 577
Area of KBA (km2): 3933.88077
KBA classification: Global/Regional TBD
Legacy site: Yes
Site details
Site description: The Boucle du Baoulé Biosphere Reserve is located in the south of the country, some 160 km north-west of the capital Bamako. The Biosphere Reserve incorporates the Boucle du Baoulé National Park and the contiguous faunal reserves of Badinko to the south-west, Fina to the south-east and Kongossambougou to the north-east. All except the last, which lies its northern side, are enclosed within the large loop of the Baoulé river which gives the reserve system its name. The area is almost entirely sandstone, cut by erosion into a series of plateaux, dissected by valleys and flood-plains. In the south there are steep escarpments flanking large valleys. The rivers within the reserve are semi-permanent. The vegetation is semi-arid Sahelian bushland in the north and Sudan–Guinea Savanna woodland in the south (Combretum, Acacia, Butyrospermum and Isoberlinia spp.). Dense riverine forest occurs along the Baoulé river and its major tributaries, as well as bordering marshes and larger lakes. The herbaceous layer is characterized by perennial grasses, notably Andropogon gayanus. There are human settlements within the site and human use is increasing, particularly in the north. Most of the region (>90%) is burnt each year from mid-October. Mean annual rainfall varies between 650 mm in the north and 1,000 mm in the south.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas)
Additional biodiversity: See Box and Table 2 for key species. In addition, two species characteristic of the Sahel biome (A03) are known from the site (see Table 2). Non-bird biodiversity: Of the larger mammals which once occurred in the reserve, Loxodonta africana (EN), Giraffa camelopardalis (LR/cd) and Tragelaphus derbianus (LR/nt) are known to have been eliminated. Some of the following may still occur, although any that do are likely to be at low densities: Panthera leo (VU) and Acinonyx jubatus (VU).
Habitats
Land use: agriculture | nature conservation and research | tourism/recreation
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Shrubland | 14 | |
| Artificial - Terrestrial | 85 |
Threats
Summary of threats to biodiversity at KBA: The site was declared a Biosphere Reserve in 1982, and some modifications to its boundaries were made in 1994 which resulted in a reduction in the size of its core area. The area has a long history of human use and agriculture, and grazing and wood-cutting have all affected the current character of the savanna such that the remaining habitat is highly degraded. The reserve is under pressure from ground-nut-growers, transhumant pastoralists, poachers, hunters, firewood-cutters and sedentary farmers. Annual burning has degraded much of the wooded savanna habitat.
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops | Shifting agriculture | Ongoing |
| Natural system modifications | Fire & fire suppression | Increase in fire frequency/intensity | Ongoing |
| Agriculture & aquaculture | Livestock farming & ranching | Small-holder grazing, ranching or farming | Ongoing |
| Biological resource use | Hunting & collecting terrestrial animals | Intentional use (species being assessed is the target) | Ongoing |
| Biological resource use | Logging & wood harvesting | Unintentional effects: subsistence/small scale (species being assessed is not the target) [harvest] | Ongoing |
Additional information
References: De Bie and Morgan (1989), IUCN (1987).