by Dan Vergano - 27 October 2010 12 H.
USA Today
Almost one in five mammals, reptiles, birds or amphibian species of Devils of Tasmania to extinction of crane, faces international conservation experts reported Tuesday.
And without the nature reserves erected during the last half century, would more missing.
"Conservation work."There is just not enough," said Ana Rodrigues functional Evolutionary Ecology Center the France study author. ""Now is the time of large-scale conservation."
Investigation of five years of the State of the extinction of species of vertebrates 25,780, more than half of all animals to spine, was published by the journal science. led by Michael Hoffmann program environment UN, the results found that nearly one-fifth of these species are threatened with extinction (from 13% to 41% of amphibians birds), meaning either there are less than 50 people on the left or the likelihood of species extinction is 50 percent or more in 10 years.Declines are primarily related to the expansion of agricultural lands, overfishing, overfishing and competition from invasive species.
Fifty-two species of vertebrates closer to extinction in a normal year.
Simply comparing 50 years before and after measurements of conservation such as the regulation and the erection of canned population trends, however, study shows 18 percent more species would be threatened with extinction were measures undertaken.
Some examples of success:
-Whale bosse.Maintenant protected by whaling agreements, populations have recovered to around 80 000 to 5 000 in the 1960s.
-Condor de Californie.Une numbering after only 22, now more than 300 exist in captive breeding efforts.
-Przewalski.Elles horse have increased 13 or 14 living in 1945 to over 1,800 today.
"It's really conservative estimate of the effects of conservation," says ecologist Taylor Ricketts of the Global Fund in Washington, D.C.
"The findings of extinction are in accordance with previous reports, but find effective basis for the conservation world-wide is the new article", he said.
The results presented today at the 10th Conference of the parties to the Convention on biological diversity in Nagoya, Japan, mean that the 193 nations have failed reach an agreed 1993 objective "to achieve by 2010 a significant reduction in the current rate of biodiversity loss at the global, regional and national as a contribution to the fight against poverty and for the benefit of all life on Earth." "Representatives of these nations are meeting to discuss a new agreement on the protection of species.
Economists estimate that by cleaner water, consumption of pests and other benefits for the environment, biodiversity provides 33 billion dollars in annual worldwide to humanity benefits said study co-author Stuart Butchart British BirdLife International. "Money spent on conservation is not lost, it is profitable, "he said."
This entry transmitted via the service for full-text RSS - if this is your content and you read on someone to another site, please read our FAQ page fivefilters.org/content-only/faq.php
Article five filters features: After Hiroshima - non-rapport Cancer Catastrophe of Fallujah.
No comments:
Post a Comment