Madagascar mangroves

AT1404 Afrotropic Mangroves 5187 km²

The Madagascar mangroves is a mangroves ecoregion located in the Afrotropic biogeographic realm, covering sub-Saharan Africa and the southern Arabian Peninsula, spanning approximately 5,187.0 km². Classified under the WWF ecoregion code AT1404, 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 Madagascar 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 Madagascar mangroves contributes to the broader biodiversity patterns of the Afrotropic realm.

Geographic Distribution

The Madagascar mangroves extends entirely within Madagascar. This geographic range places it within the Afrotropic realm, one of the eight major biogeographic divisions of the world.

Notable Species

The Madagascar mangroves supports a range of wildlife, including Abalone (Haliotis unilateralis), African dogstooth grass (Cynodon transvaalensis), African jointgrass (Hemarthria altissima), African senna (Senna didymobotrya), ambatch (Aeschynomene elaphroxylon), American Black Nightshade (Solanum americanum), American carpet grass (Axonopus compressus), Andaman Redwood (Pterocarpus dalbergioides), and 42 more species. Among these, 1 species is classified as threatened on the IUCN Red List, underscoring the conservation importance of this ecoregion.

Conservation

Like many mangroves ecosystems, the Madagascar 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.