WASHINGTON – WASHINGTON (AP) â€” In a story Nov. 20 approximately Amazon trees, The Associated Press erroneously reported how much area the forest has been losing. About 15 years ago, it was losing approximately 11,600 square miles (30,000 sq. kilometres) of forest a year, not 11.6 million square miles (30 million sq. kilometres). That figure has dropped to approximately 3,800 square miles (9,800 sq. kilometre) a year, not 3.8 million square miles. (9.8 million sq. kilometre)
A corrected version of the story is below:
Shrinking Amazon forests may lose thousands of trees species
p>Study finds thousands of Amazon's tree species under threat
By SETH BORENSTEIN
AP Science Writer
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 & 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 & 57 per cent of the 16,000 tree species in the tropical rainforest area would be considered threatened. Their 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 & early 21st centuries or slows down to lesser levels proposed in 2006, study authors said. If deforestation continues at the same pace, nearly 8,700 tree types are in trouble, yet the number of species at risk could be as low as 5,500 if nations are able to cut back as planned, said study co-author Nigel Pitman from the Field Museum in Chicago.
"We've never had a satisfactory idea of how many species are threatened in the Amazon," Pitman said Friday. "Now with this study, we have an estimate."
About 15 years ago, the Amazon was losing approximately 11,600 square miles (30,000 sq. kilometres of forest a year, said Tim Killeen, a scientist from Agteca Amazonica in Bolivia. But that figure has dropped to approximately 3,800 square miles (9,800 sq. Kilometers) a year, he said.
Killeen said the tree that produces Brazil nuts is seriously under threat, while "mahogany is commercially extinct throughout the Amazon." He said that means there's no more industry harvesting the wood, yet some trees exist.
Duke University ecologist Stuart Pimm, who was not part of the study, praised the work as sensible & important.
Science Advances: http://www.scienceadvances.org
Follow Seth Borenstein at https://twitter.com/borenbears & his work can be found at http://bigstory.ap.org/content/seth-borenstein
Source: “The Canadian Press”