Madagascar subhumid forests

AT0118 Afrotropic Tropical & Subtropical Moist Broadleaf Forests 198972 km²

The Madagascar subhumid forests is a tropical and subtropical moist broadleaf forests ecoregion located in the Afrotropic biogeographic realm, covering sub-Saharan Africa and the southern Arabian Peninsula, spanning approximately 198,972 km². Classified under the WWF ecoregion code AT0118, this region represents a distinct ecological community shaped by its unique combination of climate, geography, and evolutionary history.

Climate and Vegetation

This ecoregion experiences warm year-round with high annual rainfall, typically exceeding 2,000 mm. The dominant vegetation consists of dense, multi-layered canopy of broadleaf evergreen trees. These conditions create the foundation for the ecological communities found within the Madagascar subhumid forests.

Ecological Significance

These forests are the most biodiverse terrestrial ecosystems on Earth, hosting an extraordinary density of plant and animal species per unit area. Epiphytes, lianas, and a rich understorey characterise the complex vertical structure. The Madagascar subhumid forests contributes to the broader biodiversity patterns of the Afrotropic realm.

Geographic Distribution

The Madagascar subhumid forests 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 subhumid forests 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 tropical and subtropical moist broadleaf forests ecosystems, the Madagascar subhumid forests faces threats from deforestation, agricultural expansion, logging, and climate change. Conservation efforts in this ecoregion focus on habitat preservation, sustainable land management, and protecting corridors that connect fragmented habitat patches.