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December 17, 2010

Evolutionary Diversity Threatened By Extinctions, Habitat Loss

Math-based study looks at long-running connections of species and the impact of losing them

A mathematically driven evolutionary snapshot of woody plants in four similar climates around the world has given scientists a fresh perspective on genetic diversity and threats posed by both extinctions and loss of habitat.

The message from the study, appearing online ahead of publication in Ecology Letters, says lead author Hélène Morlon, is that evolutionary diversity -- the millions of years of evolutionary innovations contained in present-day species -- is more sensitive to extinctions or loss of habitat than long thought. And that, she adds, means conservation efforts really need to take into consideration how species are evolutionarily related.

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