28 May 2008

What makes life go at the tropics?

What causes tropical life to thrive: temperature, or sunlight? The answer is not necessarily both. As per a research studypublished online this week in PNAS Early Edition, the explosion of species at the tropics has much more to do with warmth than with light. The diversity was uncorrelation to productivity (from photosynthesis), but it was strongly correlation to temperature, said University of Southern California biologist Jed Fuhrman, who led a group that analyzed bacterial samples from warm and cold oceans........

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