South of the equator and at the 180th meridian are coral atolls and reef islands in the Pacific Ocean. Atolls have sandy barrier islands surrounding a shallow lagoon. They are the tops of volcanoes that do not quite make it above water level, and over geologic time corals have built up enough to make them … More Tuvalu and Southern Gilbert Islands
Central African Mangroves This ecoregion is found in Ghana (Greater Accra and Volta Regions) and Nigeria (Lagos, Ogun, Ondo, Edo, Delta, Bayelsa, and Akuwa Ibom States). The coastline of west Africa is a complex network of rivers, estuarine swamps, and barrier islands. In Nigeria, flood tides can penetrate as much as 45 km inland. Mangroves … More Bight of Benin and Niger Delta, Part 2: Mangroves and Grasslands
Bight of Benin, Niger Delta, and São Tomé, Part 1: Rainforest Ecoregions São Tomé, Príncipe, and Annobon forests ecoregion On mountainous islands 180 miles offshore in the Gulf of Guinea are rainforests with little seasonal climate variation and high humidity all year. The rainforests show a high level of endemism, with 37 endemic plant species … More Bight of Benin, Niger Delta, and São Tomé, Part 1
Largest historical volcanic eruption, world’s largest lizard, and synchronous fruiting I. Map boundaries: 0 to 10 degrees South; 112 to 120 degrees East II. Country (Provinces): Indonesia (Bali, Central Kalimantan, Central Sulawesi, East Java, East Kalimantan, East Nusa Tenggara [Southeast Islands], South Kalimantan, South Sulawesi, West Kalimantan, West Southeast Islands, West Sulawesi). III. Highlights A. … More Tambora and Puting Peninsula
A rainforest wetland, a rainforest mountain, tropical reefs, and big pitchers A lost world: world center of plant diversity and world’s largest limestone cave system I. Map boundaries: 0 to 10 degrees North; 112 to 120 degrees East II. Countries (States, Regions, or Districts): Brunei, Abode of Peace; Indonesia (Central Kalimantan, Central Sulawesi, East Kalimantan, … More Kapuas, Kinabalu, Tubbataha, and Victoria
Map of the Month: Coetivy Atoll and Poydenot Shoal Map boundaries: 0 to 10 degrees South; 56 to 64 degrees East Countries: Mauritius and Seychelles Overview The northern part of the Mascarene Plateau, the largest submerged bank in the world, is covered with seagrass and interspersed with coral reefs. The plateau extends from the Granitic … More Coetivy Atoll
Map of the Month: Orinoco Delta and Eastern Guyana Highlands Map boundaries: 0 to 10 degrees North; 56 to 64 degrees West Countries (States, Regions, or Districts): Brazil (Amazonas, Para, and Roraima), Guyana, Suriname (Coronie, Nickerie, and Sipaliwini), and Venezuela (Amazonas, Anzoategui, Bolivar, Delta Amacuro, and Monagas). Overview This map area extends from the Venezuelan … More Orinoco Delta and Eastern Guyana Highlands
Map boundaries: 0 to 10 degrees South; 56 to 64 degrees West Country: Brazil (Amazonas, Mato Grosso, Para, Rondonia, Roraima) Overview This map area encompasses the drainage area of the largest, fourth largest, and fifth largest river systems in the world. The coverage is of the central Amazon basin (largest), lower Madeira drainage (fourth largest), … More Madeira River Map of the Month
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