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Posted Fri Jan 10 2014: from
BBC:
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More than three quarters of large carnivores now in decline http://apocadocs.com/s.pl?1389359816
When they looked at 31 big meat eaters, they found that they were under increasing pressure in the Amazon, South East Asia, southern and East Africa.
"Globally, we are losing our large carnivores," said lead author Prof William Ripple from Oregon State University.
"Their ranges are collapsing. Many of these animals are at risk of extinction, either locally or globally."...
When they looked at wolves and cougars in Yellowstone National Park in the US, they found that having fewer of these big predators resulted in an increase in animals that browse such as elk and deer.
While this might seem like good news, the researchers found that the rise of these browsers is bad for vegetation and disrupts the lives of birds and small mammals, leading to a cascade of damaging impacts.
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[Read more stories about:
ecosystem interrelationships, hunting to extinction, predator depletion]
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One quarter, however, are now morbidly obese.
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