3 documents found, page 1 of 1
Why is Amazonia a 'source' of biodiversity? Climate-mediated dispersal and sync...
Musher, Lukas J.; Ferreira, Mateus; Auerbach, Anya L.; McKay, Jessica; Cracraft, Joel L.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 ecolo...
Systematics and biogeography of the Automolus infuscatus complex (Aves; Furnari...
Schultz, Eduardo D.; Burney, Curtis W.; Brumfield, Robb Thomas; Polo, Erico M.; Cracraft, Joel L.; Ribas, Camila CheremA revision of the avian Neotropical genus Automolus and the Furnariidae family points to the paraphyly of A. infuscatus and reveals a species complex comprising A. infuscatus, A. ochrolaemus, A. paraensis, A. leucophthalmus, A. lammi and A. subulatus, the latter historically classified in the genus Hyloctistes. Detailed knowledge of the taxonomy, geographic distribution, phylogenetic relationship and divergence...
A palaeobiogeographic model for biotic diversification within Amazonia over the...
Ribas, Camila Cherem; Aleixo, Alexandre; Nogueira, Afonso César Rodrigues; Miyaki, Cristina Yumi; Cracraft, Joel L.Many hypotheses have been proposed to explain high species diversity in Amazonia, but few generalizations have emerged. In part, this has arisen from the scarcity of rigorous tests for mechanisms promoting speciation, and from major uncertainties about palaeogeographic events and their spatial and temporal associations with diversification. Here, we investigate the environmental history of Amazonia using a phyl...