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Madagascar subhumid forests : ウィキペディア英語版 | Madagascar subhumid forests
The Madagascar subhumid forests are a tropical moist broadleaf forest ecoregion which originally covered most of the Central Highlands of the island of Madagascar. ==Setting== The Madagascar subhumid forests historically covered most of Madagascar's Central Highlands, above approximately 800 meters elevation on the east and above 600 meters elevation on the west. The ecoregion has an area of approximately . The highlands catch the wet northeast trade winds, while the areas to the south, west, and north lie in the drier rain shadow of the highlands. The subhumid forests are bounded by the humid Madagascar lowland forests along the coastal strip to the east, by the Madagascar dry deciduous forests to the north, northwest and west, and by the xeric Madagascar succulent forests and Madagascar spiny thickets to the southwest and south. In four areas above 1800–2000 meters elevation, the subhumid forests yield to the montane Madagascar ericoid thickets. Montagne d'Ambre near the northern tip of the island, contains a significant pocket of subhumid forest, (surrounded at lower elevations by dry deciduous forest), as do Ankaratra, upland near Tsaratanana, Andringitra Massif, Ambohitantely Reserve, and the Ambohijanahary area. The subhumid forests ecoregion also includes the disjunct Analavelona and Isalo massifs to the southwest, surrounded by succulent forests at lower elevations. the region includes wetlands such as Lake Alaotra. The Sambirano region in the northwest is a particular centre of endemism.
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