Saturday, February 4, 2012

Founder effect in Lizards

Mmmm, topical. In Science this week:

Founder Effects Persist Despite Adaptive Differentiation: A Field Experiment with Lizards 

 (U)sing a replicated experiment in nature, we showed that both founder effects and natural selection jointly determine trait values in these populations. 

A comment from one of the author's at ScienceDaily:

"We rarely observe founder effects as they happen in nature, but we know that it happens because islands are colonized by new species over time," said Kolbe. "What we didn't know was how these evolutionary mechanisms interact with each other. What we learned is that the differences caused by the founder effects persist even as populations adapt to their new environments."

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