Guinean mangroves

The Guinean mangroves is a mangroves ecoregion located in the Afrotropic biogeographic realm, covering sub-Saharan Africa and the southern Arabian Peninsula, spanning approximately 23,420 km². Classified under the WWF ecoregion code AT1403, this region represents a distinct ecological community shaped by its unique combination of climate, geography, and evolutionary history.

Climate and Vegetation

This ecoregion experiences tropical to subtropical coastal zones with brackish water and tidal influence. The dominant vegetation consists of salt-tolerant trees and shrubs with specialised root systems. These conditions create the foundation for the ecological communities found within the Guinean mangroves.

Ecological Significance

Mangrove forests protect coastlines from erosion and storms, serve as nurseries for commercial fish species, and sequester carbon at rates exceeding most terrestrial forests per unit area. The Guinean mangroves contributes to the broader biodiversity patterns of the Afrotropic realm.

Geographic Distribution

The Guinean mangroves extends across Cote d'Ivoire, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, and 2 other countries. This geographic range places it within the Afrotropic realm, one of the eight major biogeographic divisions of the world.

Notable Species

The Guinean mangroves supports a range of wildlife, including African Barwood (Pterocarpus erinaceus), African blackwood (Erythrophleum africanum), African Blackwood (Dalbergia melanoxylon), African Breadfruit (Treculia africana), African bristlegrass (Setaria sphacelata), African Celtis (Celtis zenkeri), African Coca-tree (Erythroxylum emarginatum), African copaiba balsamtree (Daniellia oliveri), and 42 more species. Among these, 9 species are classified as threatened on the IUCN Red List, underscoring the conservation importance of this ecoregion.

Conservation

Like many mangroves ecosystems, the Guinean mangroves faces threats from coastal development, aquaculture expansion, sea-level rise, and pollution. Conservation efforts in this ecoregion focus on habitat preservation, sustainable land management, and protecting corridors that connect fragmented habitat patches.