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Biological invasions in agricultural settings: insights from evolutionary biology and population genetics

Abstract : Invasion biology and agriculture are intimately related for several reasons and in particular because many agricultural pest species are recent invaders. In this article we suggest that the reconstruction of invasion routes with population genetics-based methods can address fundamental questions in ecology and practical aspects of the management of biological invasions in agricultural settings. We provide a brief description of the methods used to reconstruct invasion routes and describe their main characteristics. In particular, we focus on a scenario--the bridgehead invasion scenario --which had been overlooked until recently. We show that this scenario, in which an invasive population is the source of other invasive populations, is evolutionarily parsimonious and may have played a crucial role in shaping the distribution of many recent agricultural pests.
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Thomas Guillemaud, Marc Ciosi, Eric Lombaert, Arnaud Estoup. Biological invasions in agricultural settings: insights from evolutionary biology and population genetics. Comptes Rendus Biologies, Elsevier Masson, 2011, 334 (3), pp.237-246. ⟨10.1016/j.crvi.2010.12.008⟩. ⟨hal-02646885⟩

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