Extinction May Have Trickle-Down Effect
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WASHINGTON - Conservationists concerned about the extinction of plants and animals may be overlooking the danger to thousands of other species that depend on the threatened ones.
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WASHINGTON Dec 13, 2004 - About 10 percent of all bird species face extinction by the end of the century and 15 percent more are on the brink, according to researchers who say such extinctions would have a widespread impact on the environment
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Scientists studying the broader effects of wolf reintroduction said a growing body of evidence suggests that killing off predators such as wolves and grizzly bears in the last century started a cascade of effects that threw ecosystems out of balance.
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About one third of amphibians are under threat of extinction in a new sign of the world&#39;s deteriorating environment, according to researchers who carried out a global census.
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The next century definitely will not be for the birds as the changing world takes a toll on many species. By 2100, about 10 percent of all bird species probably will be extinct, killed off by habitat loss, hunting
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By Steve Connor Many animals and plants threatened with extinction could be saved if scientists spent more time talking with the native people whose knowledge of local species is dying out as fast as their languages are being lost.
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THE number of wild animals across the world has plummeted by 40 per cent in the past 30 years because of changes in the way humans are living.
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One in 10 of all bird species is likely to disappear by the end of the century, according to a study published today. A further 15 per cent of birds could be on the brink
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Being the biggest dog may pay off at feeding time, but species that grow too large may be more vulnerable to extinction, new research suggests.
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While meteorites are often associated with the extinction of dinosaurs, new evidence suggests the impacts may actually engender new life. Commentary by Carl Zimmer.
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Global warming over the coming century   could mean a return of temperatures last seen in the age of the   dinosaur and lead to the extinction of up to half of all   species, a scientist said on Thursday.
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Almost a third of the world's amphibian species are confronted by the prospect of extinction, naturalists say.
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By the end of the century one in 10 species of birds in the world will be extinct and a further 15 percent will be on the brink of extinction.
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Heathland species are in danger of extinction because of poor habitat, conservationists warn.
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In the animal kingdom, a capacity for trends could mean the difference between life and death.
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EDMONTON - An extra 6,000 species of butterflies and other small creatures will be wiped out if their endangered plant and animal hosts go extinct, scientists say.
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Extinction of a species is not just a permanent loss of biological diversity, but may have ripple effects as co-dependent species suffer from the absence of what may be linked predator-prey relationships.    Astrobiology Magazine -- The global extinction crisis ignores thousands of affiliated species that are also at risk of being wiped out, making the list of endangered species much larger and more serious than originally thought, says a study produced in part at the University of Alberta...