Early warning signs of population collapse

ScienceDaily: Spatial measurements of population density could reveal when threatened natural populations are in danger of crashing. Many factors -- including climate change, overfishing or loss of food supply -- can push a wild animal population to the brink of collapse. Ecologists have long sought ways to measure the risk of such a collapse, which could help wildlife and fishery managers take steps to protect endangered populations. Last year, MIT physicists demonstrated that they could measure a population's......

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