ns 33% of the 30 million species that inhabit the Earth.
             The dominant vegetation is arboreal, although it seems rare, the truth is that the trees of high trunks and without low branches integrate most of the landscape. Each hectare of forest can lodge up to 50 trees like the mahogany (Swietinia macrophylla) the tree of the rubber (hevea brasilensis). each tree can lodge 400 species of insects, 80 species of epiphytes, mainly bromeliads and orquídeas, the lianas called ligneous, the ferns, shrubs, there are few herbaceous plants. When lacking cold climate most of the plants they conserve its leaves all the year. In the trees we can differentiate two levels from height: the superior one (of thirty meters in ahead) where appear lianas, ferns, plants with flowers, seaweed and mosses that need certain amount light; and the underbrush that arrives until the 15 meters.
             If the deforestation rate does not stop, it is doubtless which is the future of the tropical forests. It is in serious danger, including everything what they contain and the effects that produce on the rest of the planet.
             Annually the man dismantles near 16 million hectares from forest per the year, with special incidence in the tropical forests (12 million hectares per the year), an area equivalent to Peru and Paraguay has disappeared in the last decade. As main causes are the deforestation, the overused to other of the ground uses, the overexploitation of forest products, the infrastructure mining, creation, the bad techniques of cutting, and the fires. In addition the creation to the Transamazónica Route has destroyed the habitat of hundreds of species and facilitates the human access intensifying therefore the deforestation that the man causes.
             The greater danger is the commercial operation to make products derived from the wood like for example: furniture, windows, doors and their marks, parquets, stairs, surrounded, panels, inner and outer carpentry,...