|
Negro–Branco Moist Forests
The Negro–Branco moist forests (NT0143) is an ecoregion of tropical moist broadleaf forest to the east of the Andes in southern Venezuela, eastern Colombia and northern Brazil, in the Amazon biome. It lies on the watershed between the Orinoco and Rio Negro (Amazon), Rio Negro basins. It includes both Blackwater river, blackwater and Whitewater river (river type), whitewater rivers, creating different types of seasonally flooded forest. The vegetation is more typical of the The Guianas, Guiana region than the Amazon. Location The ecoregion has an area of It overlays the Casiquiare Rift. The center of the ecoregion is in the extreme south of Venezuela, and covers part of the Parima Tapirapecó National Park. It extends west into Colombia, where it includes the south of El Tuparro National Natural Park, and extends to the southeast into the Brazilian states of Amazonas (Brazilian state), Amazonas and Roraima, including part of the Pico da Neblina National Park. It adjoins the Caq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotropical Realm
The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropics, tropical Ecoregion#Terrestrial, terrestrial ecoregions of the Americas and the entire South American temperate climate, temperate zone. Definition In biogeography, the Neotropic or Neotropical realm is one of the eight terrestrial realms. This realm includes South America, Central America, the Caribbean Islands, and southern North America. In Mexico, the Yucatán Peninsula and southern lowlands, and most of the east and west coastlines, including the southern tip of the Baja California Peninsula are Neotropical. In the United States southern Florida and coastal Central Florida are considered Neotropical. The realm also includes temperate southern South America. In contrast, the Neotropical Phytochorion, Floristic Kingdom excludes southernmost South America, which instead is placed in the Antarctic Floristic Kingdom, Antarctic kingdom. The Neo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackwater River
A blackwater river is a type of River#Classification, river with a slow-moving channel flowing through forested swamps or wetlands. Most major blackwater rivers are in the Amazon Basin and the Southern United States. The term is used in fluvial studies, geology, geography, ecology, and biology. Not all dark rivers are blackwater in that technical sense. Some rivers in temperate regions, which drain or flow through areas of dark black loam, are simply black due to the color of the soil; these rivers are ''black mud rivers''. There are also black mud Estuary, estuaries. Blackwater rivers are lower in nutrients than Whitewater river (river type), whitewater rivers and have Ionic strength, ionic concentrations higher than rainwater. The unique conditions lead to flora and fauna that differ from both whitewater and Clearwater river (river type), clearwater rivers. The classification of Amazonian rivers into black, clear, and whitewater was first proposed by Alfred Russel Wallace in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Negro Campinarana
Campinarana (NT0158, ), also called Rio Negro Campinarana, is a neotropical ecoregion in the Amazon biome of the north west of Brazil, southern Venezuela, and the east of Colombia that contains vegetation adapted to extremely poor soil. It includes savanna, scrub and forest, and contains many endemic species of fauna and flora. Location Areas of campinarana, which may cover several thousand square kilometres, are found in the transitional region from the Guyana Shield to the Amazon basin. Large stretches of Campinarana are contained within the Japurá-Solimões-Negro moist forests, Negro-Branco moist forests, Guianan piedmont and lowland moist forests, Uatuma-Trombetas moist forests and Guianan savanna. The campinarana ecoregion totals about . Campinarana is mainly found in flat flooded areas in the Rio Negro and Rio Branco basins, which are tributaries of the Amazon, in northern Brazil along the borders of Colombia and Venezuela, and in the Ventuari–upper Orinoco basin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uatuma–Trombetas Moist Forests
The Uatuma–Trombetas moist forests (NT0173) is an ecoregion in northwest Brazil in the Amazon biome. It covers the Amazon basin north of the Amazon River from close to the Atlantic Ocean to the Rio Negro west of Manaus. The ecoregion is relatively intact, although it has been damaged along the main rivers and around population centers. Location The Uatuma–Trombetas moist forests ecoregion is in the north of Brazil in parts of the states of Roraima, Amazonas and Amapá to the north of the Amazon River. Small areas of the ecoregion cross the Brazilian border into Guyana and Suriname. It has an area of . The ecoregion covers the area to the north of the Amazon River from close to the Atlantic coast to the Rio Negro and the Branco River. In the north to extends to the mountains along the border between Brazil and the Guianas and Suriname. On the 1993 Brazilian Institute of Geography and Statistics map the Brazilian part is shown as "lowland ombrophilous dense forests", "submo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guianan Piedmont And Lowland Moist Forests
The Guianan piedmont and lowland moist forests (NT0182) is an ecoregion in the south of Venezuela and the north of Brazil. It is in the Amazon biome. The ecoregion is relatively intact, largely protected by conservation units or indigenous territories, and less threatened by global warming than flatter and more deforested regions. Location The Guianan piedmont and lowland moist forests ecoregion is in the south of Venezuela and the north of the Brazilian states of Amazonas and Roraima. It surrounds sections of the Guayanan Highlands moist forests, which in turn surround areas of tepui. It includes or adjoins patches of Rio Negro campinarana. To the north the ecoregion adjoins the Llanos, and to the east it adjoins the Guianan moist forests and the Guianan savanna. To the southeast it adjoins the Uatuma–Trombetas moist forests, and to the south and southwest it adjoins the Negro–Branco moist forests. Ecology The Guianan piedmont and lowland moist forests ecoregion is in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanos
The Llanos ( Spanish ''Los Llanos'', "The Plains"; ) is a vast tropical grassland plain situated to the east of the Andes in Colombia and Venezuela, in northwestern South America. It is an ecoregion of the tropical and subtropical grasslands, savannas, and shrublands biome. Geography The Llanos occupy a lowland that extends mostly east and west. The Llanos are bounded on the west and northwest by the Andes, and on the north by the Venezuelan Coastal Range. The Guiana Highlands are to the southeast, and the Negro-Branco moist forests are to the southwest. To the east the Orinoco wetlands and Orinoco Delta swamp forests occupy the Orinoco Delta. The Llanos' main river is the Orinoco, which runs from west to east through the ecoregion and forms part of the border between Colombia and Venezuela. The Orinoco is the major river system of Venezuela. Climate The ecoregion has a tropical savanna climate that grades into a tropical monsoon climate in the Colombian Llanos. Rainfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japurá–Solimões–Negro Moist Forests
The Japurá–Solimões–Negro moist forests (NT0132) is an ecoregion of tropical moist broad leaf forest in the Amazon biome. Location The Japurá–Solimoes–Negro moist forests ecoregion is named for the Japurá, Solimões, and Negro rivers. Almost all of the ecoregion is in the central northern part of the Brazilian Amazon basin, with a small portion in Colombia. It has an area of . Conservation units include the Jaú National Park and the Mamirauá Sustainable Development Reserve. The ecoregion lies on the lowland plateau in the interfluvial between the Rio Negro and the Solimões River. In Colombia the region skirts the foothills of the Guiana Shield to the northwest, and contains the lower Vaupés River basin and the land south of the Guainía River, the name of the upper Rio Negro in Colombia. The region is then bounded by the Rio Negro along the border with Venezuela and into Brazil to its confluence with the Solimões at Manaus. The southern border is defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caquetá Moist Forests
The Caquetá moist forests (NT0107) is an ecoregion of tropical moist broad leaf forest to the east of the Andes in the east of Colombia, with a small section in Brazil, in the Amazon biome. The forests are in the transition between the Guiana and Amazon regions, and have highly diverse flora and fauna. They are relatively intact, although they are mostly unprotected and are threatened with deforestation to create cattle pastures. Location The Caquetá moist forests, mainly in Colombia, are in the foothills of the Andes. They have an area of . They are in a region where many rivers flow from the Andes to the Amazon basin. Average annual temperatures range from depending on elevation and forest coverage. The region has some of the highest rainfall in the Amazon region, with an average of , and as much as in some years. On the northeast the forest is bounded by the Guainía ( Rio Negro), Guaviare, and Guayabero rivers. In the west it is bounded by the Andes. In the south it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
