The Union of Comoros is characterized by the presence of varied ecosystems and natural resources rich in species diversity and endemism. There are at least four ecosystems: (i) a coastal ecosystem (mangroves, seagrass beds and coral reefs), (ii) a shrub-savanna ecosystem type, (iii) a forest ecosystem type, and (iv) wetland ecosystem type such as Lake Dzialandzé (Anjouan), Lake Dziani boudouni (Moheli) and salt Lake (Grande Comore). Variability of climate, geomorphology, geology and soils contributes to habitat diversity, diversity of flora and fauna including many endemic, threatened and migratory species, such as sea turtles, whales, dolphins, lemur and dugong, sea cucumbers, among others. The Comoros is also a nature sanctuary for species such as Livingstone bats and the coelacanth.