Andrés M. Cuervo

TL;DR: It is shown that spatial and temporal patterns of genetic differentiation in Neotropical birds are highly discordant across lineages and are not reconcilable with a model linking speciation solely to landscape change, and the strongest predictors of speciation are the amount of time a lineage has persisted in the landscape and the ability of birds to move through the landscape matrix.

TL;DR: Recon reconstructing passerine evolutionary history and producing the most comprehensive time-calibrated phylogenetic hypothesis of the group, which suggests more complex mechanisms than temperature change or ecological opportunity have controlled macroscale patterns of passerine speciation.

TL;DR: It is observed that higher and more constant speciation rates occur in harsh environments relative to the tropics, and the results reveal a model in which species are forming faster in environmental extremes but have accumulated in moderate environments to form tropical biodiversity hotspots.

TL;DR: To evaluate the role of historical processes in the evolution of Sclerurus leaftossers by integrating phylogenetic and phylogeographical approaches.

TL;DR: The substantial genetic and phenotypic differentiation, and the paraphyly uncovered in B. tristriatus, may call for revising its species boundaries, highlighting the importance of valleys in promoting and maintaining divergence in a lower montane forest bird.