Lake Chad flooded savanna

AT0904 Afrotropic Flooded Grasslands & Savannas 31988 km²

The Lake Chad flooded savanna is a flooded grasslands and savannas ecoregion located in the Afrotropic biogeographic realm, covering sub-Saharan Africa and the southern Arabian Peninsula, spanning approximately 31,988 km². Classified under the WWF ecoregion code AT0904, this region represents a distinct ecological community shaped by its unique combination of climate, geography, and evolutionary history.

Climate and Vegetation

This ecoregion experiences seasonal flooding with waterlogged soils for significant portions of the year. The dominant vegetation consists of grasses and sedges adapted to periodic inundation. These conditions create the foundation for the ecological communities found within the Lake Chad flooded savanna.

Ecological Significance

These wetland ecosystems are critical for waterbirds, fish, and amphibians, serving as nursery habitats and seasonal migration stopover points. The Lake Chad flooded savanna contributes to the broader biodiversity patterns of the Afrotropic realm.

Geographic Distribution

The Lake Chad flooded savanna extends across Cameroon, Chad, Niger, and Nigeria. This geographic range places it within the Afrotropic realm, one of the eight major biogeographic divisions of the world.

Notable Species

The Lake Chad flooded savanna supports a range of wildlife, including African Blackwood (Dalbergia melanoxylon), African Elemi (Canarium schweinfurthii), African Oil Bean (Pentaclethra macrophylla), African Pearwood (Baillonella toxisperma), African Teak (Milicia excelsa), Akume (Guibourtia tessmannii), Alfalfa (Medicago sativa), Allspice (Pimenta dioica), and 42 more species. Among these, 3 species are classified as threatened on the IUCN Red List, underscoring the conservation importance of this ecoregion.

Conservation

Like many flooded grasslands and savannas ecosystems, the Lake Chad flooded savanna faces threats from dam construction, drainage for agriculture, water diversion, and pollution. Conservation efforts in this ecoregion focus on habitat preservation, sustainable land management, and protecting corridors that connect fragmented habitat patches.