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четверг, 28 июня 2012 г.

Rainforests of the Amazon



Rainforests of the Amazon River spread out around the Amazon. They are broad and almost flat plain. The plot of the wet and in fact impassable forests is 5.5 million square kilometers.The forest stretches across several countries: Brazil, Colombia, Suriname, Peru, Bolivia, Guyana, Venezuela, French Guiana, Ecuador. The local forest - the largest forest on the planet. Here are concentrated the most vast reserves of timber, it grows very large "factory" to produce oxygen.In the humid forests of South America's rich diversity of flora and fauna, which is much more abundant than the forests of Africa. For example, every tenth animal species or the described plant is located in the forests of Amazonia. In all the years of research in the forests have been found more than 3000 species of fish, 40,000 species of plants and 1300 species of birds. In the forests of the Amazon inhabited by nearly 500 species of mammals, 400 species of amphibians, reptiles, and the same a little more than 100,000 invertebrates.
The variety of plants growing in the forests of the Amazon, can not but admire. For analyzes of professionals, per square kilometer of the forest has 150,000 species of higher plants, including 75,000 species of trees. Apart from this, the local forests are teeming with dangerous animals to humans. For large predators include the jaguar, the caiman and the anaconda.Many in the Amazon forest pests and vectors of different infections. For example, bats, biting an animal or human, they may be able to place the body in the rabies virus. A very favorable to the Amazon River spread of dengue fever, malaria and other communicable diseases.
Valley of the Amazon is weakly populated. Glavnyemi highways are rivers, along which settlements are located.In recent decades, is active deforestation of Amazonia, which is why the once-rich tracts converted Cerrado - the type of dry savannah that dominates in Brazil. Recently, forest decreased nearly 70%. Delicate balance has been disrupted, now disappear from the face of the earth many species of plants and animals.

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