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Rain Forests In Brazil: An Overview
Jun 19,2007 00:00
by
newsdesk
The largest country in South America, Brazil’s unparalleled natural treasures include not only the dense tropical rainforests of the Amazon that covers almost half of the country. On the west is the Pantanal, the world's largest wetlands. Central Brazil is covered with Cerrado, or grassland and gallery forest habitat. Northeastern Brazil is caatinga desert, with patches of tropical moist forest on the coast. Southeastern Brazil hosts Atlantic rain forests, less well known than the Amazon but 20 million years older. The great Serra do Mar mountain range follows up much of the southeastern coast and inland north of Rio de Janeiro. In the upper altitudes of these mountains one finds Brazilian alpine and isolated mountain tops with many endemic species. The southern part of the country turns temperate, with grasslands, wetlands and stands of Araucaria pine forests. Given its awesome size, Brazil offers the tourist the opportunity to see many different ecosystems. Many of Brazil’s plants and animals are found no where else on earth. Brazil’s sheer size, 3.3 million square miles—an area larger than the "lower 48" United States—and its abundant natural resources crystallize its importance. Brazil’s environmental health has the potential to impact all of us on a global scale. Amazon Rain Forest The Amazon is the most biodiverse place on Earth. It harbors incredible wildlife and numerous indigenous cultures that maintain little or no contact with the outside world. The Amazon also plays a key role in regional and global carbon cycles and climate. The Amazon River Basin harbors nearly one-third of the world’s species and contains nearly one-quarter of the earth’s fresh water. In addition to its wealth of discovered and undiscovered flora and fauna, the Amazon is home to many diverse traditional and indigenous human populations. Atlantic Rain Forest The Atlantic Forest of Brazil is also home to around 20,000 species of plants, representing 8% of the Earth’s plants. In fact, in the 1990s researchers from the New York Botanical Garden counted 458 tree species in 2.5 acres – more than double the number of tree species in the entire U.S. eastern seaboard. New species of flora and fauna continue to be discovered. The forest structure of the Atlantic Forest contains multiple canopies that support an extremely rich vegetation mix. This includes an astonishing diversity of ferns, mosses and epiphytes (“air plants” or plants that attach to other plants), including lianas, orchids and bromeliads. Pantanal The Pantanal is also one of the world’s most productive habitats. Annual floods, fed by tropical rains, create a giant nursery for aquatic life, including 260 species of fish. As the waters recede in the dry season, the Pantanal attracts a great influx of birds and other animals — one of the hemisphere’s greatest natural phenomena. Caatinga The Caatinga occupies 11% of the Brazilian territory stretching across 300,000 square miles of the subequatorial zone. The Caatinga is one of the most populated semi-arid regions in the world and its human occupation dates back to pre-historic times. Rudimentary agriculture and the intense use of natural resources have increased degradation of the land. The Conservancy is the only international conservation organization currently working in the Caatinga. Cerrado The Cerrado is the world’s most biologically rich savanna. It has over 10,000 species of plants, of which 45% are exclusive to the Cerrado, and it stretches across nearly 500 million acres of Brazil - an area nearly three times the size of Texas. The Cerrado also feeds three of the major water basins in South America: the Amazon, Paraguay and São Francisco Rivers. Fernando de Noronha Indigenous Peoples The maps will be used by indigenous leaders and the Conservancy to jointly develop management plans that will include areas for protection and sustainable resource extraction. An ethno-map has been completed for the 1.2-million-acre Uaca Indigenous Territory in the north of the state of Amapa on the border between Brazil and French Guiana, and additional project sites have been identified. Elsewhere in the Amazon, related projects are helping community conservation among the Pemón people of Venezuela and a number of indigenous groups in the Peruvian Amazon, especially the Ashaninka. |