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The drivers of tropical speciation [Nature]

par Frédéric Magné - publié le , mis à jour le

Since the recognition that allopatric speciation can be induced by large-scale reconfigurations of the landscape that isolate formerly continuous populations, such as the separation of continents by plate tectonics, the uplift of mountains or the formation of large rivers, landscape change has been viewed as a primary driver of biological diversification. This process is referred to in biogeography as vicariance1. In the most species-rich region of the world, the Neotropics, the sundering of populations associated with the Andean uplift is ascribed this principal role in speciation2, 3, 4, 5. An alternative model posits that rather than being directly linked to landscape change...

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