Data from: Why is Amazonia a ‘source’ of biodiversity? climate-mediated dispersal and synchronous speciation across the Andes in an avian group (Tityrinae)

Lukas J. Musher, Mateus Ferreira, Anya L. Auerbach, Jessica McKay & Joel Cracraft
Amazonia is a ‘source’ of biodiversity for other Neotropical ecosystems, but which conditions trigger in situ speciation and emigration is contentious. Three hypotheses for how communities have assembled include (1) a stochastic model wherein chance dispersal events lead to gradual emigration and species accumulation, (2) diversity-dependence wherein successful dispersal events decline through time due to ecological limits, and (3) barrier displacement wherein environmental change facilitates dispersal to other biomes via transient habitat corridors. We sequenced...
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