Is ecological diversity necessary to its genesis?

A long lasting modeling work (begun as a Master student actually, though considerably modified since then) has just been published as an article in Nature Communications.

We study the impact of diversity on the possibility of evolutionary diversification (adaptive radiation) under different scenarios of ecological interactions. We find that diversification, if  impossible starting at low diversity levels, can become quite possible if more diversity is brought into the system. This causes what is reminiscent of an Allee-effect, but for the dynamics of diversity.

See also http://www.cnrs.fr/inee/communication/breves/b287.html

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