Problems

Due to its isolation, the island has a rich biological diversity. In fact, Madagascar is a megadiverse country containing 5% of the world's biodiversity on just 0.4% of the world's landmass [1]. The country is part of the Indo-Pacific Tropical Grass Bioregion [2] and has more than 5,000 kilometers of coastline that support valuable ecosystems such as coral reefs, coastal forests, mangroves and wetlands [3]. It encompasses a diversity of ecosystems, with a mountainous plateau extending throughout the center, bordered by low-lying coastal areas on all sides. In addition, the county’s ecosystems include multiple types of forests, savannah, steppes, rivers, lakes, drylands and reefs [4].

The coastal areas in Madagascar are composed of natural environments that are among the richest and most diversified in the Indian Ocean region, including extensive coral reef systems, mangroves, phanerogam seagrass beds, estuaries and coastal marshes [5].

Madagascar is home to high flora and fauna endemism and is one of 36 biodiversity hotspots with 15,000 plant species of which more than 12,000 are endemic. Furthermore, more than 80% of Madagascar natural flora and fauna are endemic [6]. According to the IUCN Red List of Threatened Species of Fauna, Madagascar is home to 107 critically endangered species, 260 threatened species and 121 vulnerable species [6]. Madagascar's Strong endemism is therefore a priority for biodiversity conservation and one of the world’s highest-priority countries for conservation.

Biodiversity is declining in Madagascar with severe consequences. The country has lost more than 80% of its original forest cover, with primary forests covering only 12% of the country at present. However, the rate of deforestation has declined in the recent years. Coral reefs are also under increasing pressure, many of them degraded. In 2013, Madagascar had 166 critically endangered species, 290 endangered species, 11 extinct species and 476 vulnerable species [5].

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