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Within the western ecoregion, Bemaraha is a centre of endemism both for flora and fauna. It is one of the protected areas that is the richest in faunistic species and especially in karstic ecosystems (in the western ecoregion).
The protected area Tsingy de Bemaraha complex also plays an important ecological role in the region. It is a water source for the entire downstream part of the Bemaraha plateau, especially at the level of the Manambolomaty lakes complex (one of the three RAMSAR sites in Madagascar - wetlands of international importance) and at the level of the rice granary of the region: Lake Bemamba.
The rivers draining the Antsingy are permanent streams.
It is not the rivers or streams originating in the Antsingy that are responsible for this ecological function but it is the forest cover on limestone plateau. It retains the rainwater and then allows it to infiltrate little by little and feed the springs throughout the year.
== Conservation targets ==
