Mount Roraima-South America

Mount Roraima is a mountain in South America shared between Brazil, Guyana and Venezuela. It is a tepui, a table mountain characteristic of the Guiana Shield. Bounded by cliffs of about 1000 meters, its summit plateau has a totally different environment of the rainforest and savanna extending his feet. Thus, the heavy rainfall is causing pseudokarstiques training, including many large caves, as well as leaching. Flora has adapted to the climatic and geological conditions with high endemism and an abundance of carnivorous plants that are in the insects captured nutrients absent in the soil. The fauna is very present but also marked by a pronounced endemism, especially among reptiles and amphibians. This environment is protected within Canaima National Park in Venezuela and the National Park Mount Roraima in Brazil. The highest point of the mountain rises on the southern edge of the cliff, in Venezuelan territory at 2810 meters above sea level, and this prominence is the highest peak in the state of Bolívar. Another small secondary top is the culmination of Guyana to 2772 meters in the north of the plateau, not far from the terminal tripoint marking the borders between Brazil, Guyana and Venezuela.



Animal species at the foot of the mountain are represented by many mammals. Some have a very wide range, as present in particular in the Amazon rainforest, as three-toed sloths, anteater, anteaters Turnstone, Brazilian tapir, giant armadillo, capybara, paca, peccary in collar, bush dog, golden agouti, coati common, kinkajou, the Olingo of Beddard, the brocket, jaguar, jaguarundi, the oncille, puma, margay or primates as douroucouli common, the red howler, the titi milling the head ouakari black olive and the Capuchin faced saki pâle2. Others have a more limited range, such as opossums opossum white ears, the fat-tailed opossum or Marmosa tyleriana but savannah fox, weasel long-tailed rodents Zygodontomys brevicauda , Podoxymys roraimae, three species of Rhipidomys and two species of Cavia2.
The avifauna is represented by hundreds of species of which the most common are the rainforest duck Bahamas, hawk Aplomado the conure copper, the roadrunners pavonin, the little Duke of Guatemala, the burrowing owl, sparrow Rufous, the Toucanet Derby, five species of hummingbirds, etc2. Some of them are endemic to this region of South America and are confined to the immediate vicinity of tepuys2. This is the case of the swift tepuis, the tepuis of the hummingbird, the wren tepuis, the tepuis of tinamou, the conure wing-of-fire, toui tepui, Roraima of the nightjar, the Sabrewing reddish, the pretty peacock, glossy green crown, the white-throated anabate, the Antpitta sober cotinga of cord-red, white-headed manakin manakin and olive2.
Because of their mobility smaller compared to other animals, amphibians and reptiles are more diverse species between the bottom of Mount Roraima and sommet2. Thus, while species living in the rainforest at his feet are common as the green iguana lizards of the genus Tupinambis, snakes Bothrops asper and Lachesis muta, a coral snake Micrurus and kind of Boa constrictor, those at the top are more specific like frogs Oreophrynella nigra and Oreophrynella quelchii


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