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100 species of amazon birds risk extinction due to deforestation,conservationist group says by ferujkll sdff
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100 species of amazon birds risk extinction due to deforestation,conservationist group says by FERUJKLL SDFF
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| Article Posted: 03/09/2013 |
| Article Views: 106 |
| Articles Written: 2023 - MORE ARTICLES FROM THIS AUTHOR |
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100 species of amazon birds risk extinction due to deforestation,conservationist group says |
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RIO DE JANEIRO – The list of Amazon bird species facing danger of extinction hasrisen sharply because their rainforest habitat is being slashed tomake room for cattle ranching and agriculture, a conservationistgroup said Thursday. BirdLife International said that globally, 1,331 types of birds, or13 percent of the world's 10,064 total bird species, were listed asat risk on this year's Red List of Threatened Species issued by theInternational Union for Conservation of Nature. That's up from the1,253 species classified as threatened on last year's list. The biggest jump came in the Amazon, where 100 Amazon avian speciesare now on the Red List, three of them in the highest-risk,"critically endangered" category.
Only 10 were listed last year.The sudden jump is due to new models of future deforestation, whichpredicted accelerating destruction over the coming decade. "We have previously underestimated the risk of extinction that manyof Amazonia's bird species are facing," said Leon Bennun,BirdLife's director of science, in a news release from theorganization, which is an umbrella group representing conservationgroups around the globe. "Given the weakening of Brazilian forest law, the situation mightbe even worse than recent studies have predicted," he said,referring to Brazil's new Forest Code, which loosens protections onthe Amazon and is expected to take effect in the coming months. The Rio Branco antbird was catapulted to the "criticallyendangered" category this year from the "near threatened" categoryon the 2011 list, meaning the bird was of some concern but notconsidered at risk of extinction, to the top, "criticallyendangered" category this year.
The antbird's relatively long,10-12 year life-span makes it difficult for the little black birdwith delicate white markings on its wings to adapt to habitatdestruction, said BirdLife spokesman Martin Fowlie. The hoary-throated spinetail was added to the critically endangeredcategory due to its limited habitat range. The tiny, rusty orangebird with a brown-and-white spotted throat lives exclusively inpockets of forest on the northern edge of the Amazon, near Brazil'sborder with Guyana. With land there being cleared for cattleranching and soy production, the spinetails' numbers are expectedto plummet by about 80 percent over the coming decade, according toBirdLife.
Beyond the Amazon, Brazil's Atlantic coastline is the other mainhabitat for the country's total of 152 threatened birds. The number of threatened species in other regions remained largelyflat overall, with some species taken off the list while otherswere added. At-risk species elsewhere in the world include northern Europe'slong-tailed duck, which is now listed as "vulnerable" after itspopulation plummeted by more than 1 million over the past twodecades. The reason for its falling numbers is unknown, BirdLifesaid.
In Africa, the white-backed and Rueppell's vultures have beenclassified as endangered due to loss of habitat and poisoning. Theyhad previously not been listed as threatened. Still, there were glimmers of hope. Another little black bird fromBrazil, the Restinga Antwren, was downlisted from criticallyendangered to endangered after a state park was created last yearto protect its habitat on a sliver of Altantic coastline northeastof Rio de Janeiro. Another success story was the Rarotonga monarch, a grey-and-whiteflycatcher that lives on the remote, South Pacific Cook Islands.Previously one of the world's rarest birds, with a population thathad dropped to fewer than 40 individuals, the Rarotonga wasdowngraded from "critically endangered" to "vulnerable" on thesuccess of measures to control invasive alien predators.
Itspopulation has bounced back to an estimated 380 individuals,BirdLife said. BirdLife International researches and develops the entire aviansection of the Red List. The Red List now contains almost 62,000species of plants and animals, whose status is constantly monitoredby conservationists. I am a professional writer from Luggage Cart, which contains a great deal of information about ibm laptop t30 , electronic plastic enclosures, welcome to visit!
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