Amazon trees are found to be at risk

AP, By Seth Borenstein, November 22

Washington – A first-of-its-kind examination of the Amazon’s trees found that as many as half the species may be threatened with extinction or heading that way because of massive deforestation. Among the more than 5,000 tree species in deep trouble: the ones that produce Brazil nuts and mahogany.

An international team of 158 scientists found that depending on the degree to which deforestation comes under control in the next 35 years, between 36 and 57 percent of the 16,000 tree species in the tropical rainforest area would be considered threatened. The study is published in Friday’s edition of Science Advances.

The range rests on whether cutting down the region’s forest continues at the rate of the late 20th and early 21st centuries or slows to lesser levels proposed in 2006, study authors said. If deforestation continues at the same pace, nearly 8,700 tree types are in trouble, but the number of species at risk could be as low as 5,500 if nations are able to cut back as planned, said study coauthor Nigel Pitman, from the Field Museum in Chicago.

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