Tuesday, 28 January 2014

How the threat to lions, leopards and wolves endangers us all

Though fearsome killers, big carnivores are also a precious resource, as their feeding habits keep many delicate ecosystems in balance. But too many predators are now facing extinction

They are the planet's most prolific killers – and also some of nature's most effective protectors. This is the stark conclusion of an international report that argues that lions, wolves, pumas, lynxes and other major carnivores play key roles in keeping ecosystems in balance. It also warns that the current depletion of numbers of major predators threatens to cause serious ecological problems across the globe.

The paper, written by a group of 14 leading ecologists and biologists from the US, Europe and Australia and published in the journal Science, calls for the establishment of an international initiative to conserve large carnivores and help them to coexist with humans. Failure to protect our top predators could soon have devastating consequences, they warn.

"Globally, we are losing our large carnivores," said William Ripple, the report's lead author. "Many of them are endangered and their ranges are collapsing. Many are at risk of extinction, either locally or globally. And, ironically, they are vanishing just as we are learning to appreciate their important ecological effects."

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