Deep vicariance and frequent transoceanic dispersal shape the evolutionary history of a globally distributed fern family

Weston Testo, Andre Gasper, Sonia Molino, José María Gabriel Y Galán, Alexandre Salino, Vinícius Dittrich & Emily Sessa
Premise Historical biogeography of ferns is typically expected to be dominated by long-distance dispersal, due to their minuscule spores. However, few studies have inferred the historical biogeography of a large and widely distributed group of ferns to test this hypothesis. Our aims are to determine the extent to which long-distance dispersal vs. vicariance have shaped the history of the fern family Blechnaceae, to explore ecological correlates of dispersal and diversification, and to determine whether these...
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