Spontaneous genetic clustering in populations of competing organisms

Tim Rogers, Alan J. McKane, Axel G. Rossberg

    Research output: Contribution to journalArticlepeer-review


    We introduce and analyse an individual-based evolutionary model, in which a population of genetically diverse organisms compete with each other for limited resources. Through theoretical analysis and stochastic simulations, we show that the model exhibits a pattern-forming instability which is highly amplified by the effects of demographic noise, leading to the spontaneous formation of genotypic clusters. This mechanism supports the thesis that stochasticity has a central role in the formation and coherence of species.

    Original languageEnglish
    Article number066002
    Pages (from-to)1-8
    Number of pages8
    JournalPhysical Biology
    Issue number6
    Publication statusPublished - Dec 2012


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