Decline of predators such as wolves throws food chains out of whack, report says - The Washington Post
►http://www.washingtonpost.com/national/health-science/decline-of-predators-such-as-wolves-throws-food-chains-out-of-whack-report-says/2011/07/14/gIQAaeY1EI_story.html
Finalement le loup était gentil:
The decline of large predators such as big cats, wolves, sharks and giant whales may be “humankind’s most pervasive influence on the natural world,” causing prey animals to swell in population and throw food chains out of balance, a new report says.
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“Recent research suggests that the disappearance of these animals reverberates further than previously anticipated,” says the report, “Trophic Downgrading of Planet Earth.” In addition to creating an overabundance of prey, the dwindling number of predators contributes to the spread of disease, wildfires and invasive species.