Friday, December 5, 2014

                                                                         

          Before Brazil's great land rush, the emerald rain forest Rondonia state were unspoiled showcase for the diversity life of diversity. In territory south of the Amazon, there was very much  hardly a break in the canopy of 2oo-feet tall trees, and virtually every acre was alive with the cacophony of all kind of insects, birds and monkeys.On, 1970s, came the settlers of swarms , slashing and burning swaths through the forest to create the roads, towns and fields. As far as  we know, soil that supported a rich rain forest is not well suited to corn and other crops, and mostly  the newcomers can eke out only an impoverished and disease-ridden existence. While on the process, they are destroying an ecosystem and the millions of species of plants and animals that live in it. An approximately 2o% of Rondania's forest was gone, and at present rates of destruction, it will be totally wiped out with 25 years.Don't they?
       Nearly every habitat is a risk. Forests in the northern hemisphere have fallen to lumbering,  acid rain .Resulting, Marine ecosystems around the world are threatened by pollution, and overfishing in the coastal development. It is in the topics, that the battle to preserve what scientists call biodiversity will be won or lost. Tropical forests cover only 7th% of the earth surface, but they house between 50% and 80% of the planet's species.
  Despite the alarm with which scientists view this trend, probably the  biodiversity has just surfaced on the world's political agenda. Problems of high-profile animals such as tiger and rhino grab public attention, while mny people hardly see the point of worrying about insects and plants.Do they? But extinction is the one environmental calamity that is irreversible. As a result lowly species disappear unnoticed, they take with them  and hard-won lessons of survival encoded in their genes over many years.
 Humanity already benefits greatly from the genetic heritage of little known species. Approximately 25% of the pharmaceuticals in use in the U.S. today contain ingredients  derived from wild plants.Don't they? Hidden anonymously in clumps of vegetation about to be bulldozed or burned might be plants with cures for still unconquered diseases. Janzen said "I know of three plants with the potential to treat AIDS'.

Finally, the unfortunate reality is that many habitats are not going to be saved. While preventing the genetic legacy of those areas from being extinguished and as many species as probably should be preserved in zoos, botanical gardens and the other gene banks. probably the  scientists can study a small percentage of threatened organisms and have the options of later returning them to the wild or transplanting some of their genes into other species.       

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