This page features a list of biogeographic provinces that were developed by Miklos Udvardy in 1975, later modified by other authors. Biogeographic Province is a biotic subdivision of biogeographic realms subdivided into ecoregions, which are classified based on their biomes or habitat types and, on this page, correspond to the floristic kingdoms of botany. The provinces represent the large areas of Earth's surface within which organisms have been evolving in relative isolation over long periods of time, separated from one another by geographic features, such as oceans, broad deserts, or high mountain ranges, that constitute barriers to migration. Biomes are characterized by similar climax vegetation, though each realm may include a number of different biomes. A tropical moist broadleaf forest in Brazil, for example, may be similar to one in New Guinea in its vegetation type and structure, climate, soils, etc., but these forests are inhabited by plants with very different evolutionary histories. Afrotropical Realm Tropical humid forests Guinean Rainforest Congo Rainforest Malagasy Rainforest Tropical dry or deciduous forests (incl. Monsoon forests) or woodlands West African Woodland/Savanna East African Woodland/Savanna Congo Woodland/Savanna Miombo Woodland/Savanna South African Woodland/Savanna Malagasy Woodland/Savanna Malagasy Thorn Forest Evergreen sclerophyllous forests, scrubs or woodlands Cape Sclerophyll Warm deserts and semideserts Western Sahel Eastern Sahel Somalian Namib Kalahari Karroo Mixed mountain and highland systems with complex zonation Ethiopian Highlands Guinean Highlands Central African Highlands East African Highlands South African Highlands Mixed island systems Ascension and St. Helena Islands Comores Islands and Aldabra Mascarene Islands Lake systems Lake Rudolph Lake Ukerewe (Victoria) Lake Tanganyika Lake Malawi (Nyassa) Antarctic Realm Tundra communities and barren Antarctic desert Subtropical and temperate rain forests or woodlands Australasian Realm Tropical humid forests Queensland Coastal Subtropical and temperate rain forests or woodlands Tasmanian Tropical dry or deciduous forests (incl. Monsoon forests) or woodlands Northern Coastal Evergreen sclerophyllous forests, scrubs or woodlands Western Sclerophyll Eastern Sclerophyll Brigalow Warm deserts and semideserts Western Mulga Central Desert Southern Mulga/Saltbush Tropical grasslands and savannas Northern Savanna Northern Grasslands Temperate grasslands Eastern Grasslands and Savannas Indomalayan Realm Tropical humid forests Malabar Rainforest Ceylonese Rainforest Bengalian Rainforest Burman Rainforest Indochinese Rainforest South Chinese Rainforest Malayan Rainforest Tropical dry or deciduous forests (incl. Monsoon forests) or woodlands Indus-Ganges Monsoon Forest Burma Monsoon Forest Thailandian Monsoon Forest Mahanadian Coromandel Ceylonese Monsoon Forest Deccan Thorn Forest Warm deserts and semideserts Thar Desert Mixed island systems Seychelles and Amirantes Islands Laccadives Islands Maldives and