Jorge L. Pérez-Emán

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: It is found that the Furnariidae exhibit nearly constant rates of lineage accumulation but show evidence of constrained morphological evolution, suggesting that lineage accumulation in tropical continental radiations may not be as limited by ecological opportunities as in temperate or island radiations.

TL;DR: Collecting biological specimens for scientific studies came under scrutiny when B. A. Minteer and colleagues suggested that this practice plays a significant role in species extinctions.

TL;DR: A summary phylogenetic hypothesis is provided that will be broadly applicable to investigations of the historical biogeography, processes of diversification, and evolution of trait variation in this well studied avian group.

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.