| historical diversification of a terra-firme forest bird superspecies: a phylogeographic perspective on the role of different hypotheses of amazonian diversification. | among those few hypotheses of amazonian diversification amenable to falsification by phylogenetic and population genetics methods, three can be singled out because of their general application to vertebrates: the riverine barrier, the refuge, and the miocene marine incursion hypotheses. i used phylogenetic and population genetics methods to reconstruct the diversification history of the upland (terra-firme) forest superspecies xiphorhynchus spixii/elegans (aves: dendrocolaptidae) in amazonia, an ... | 2004 | 15266979 |