In a recent commentary, Lima (Ornithol Res 30: 225–228,) claims that the Brazilian
Ornithological Records Committee (CBRO) bases its species ranking decisions on a …

A key question about macroevolutionary speciation rates is whether they are controlled by
microevolutionary processes operating at the population level. For example, does spatial …

The genus Willisornis is endemic to the Amazon Basin, inhabiting upland terra firme forest,
with two species and seven subspecies currently recognized. Despite numerous systematic …

The Neotropical realm is vastly known for its richness, being the Amazon one of the main
cradles of taxonomic diversity in the region. In the last decades, molecular analyses have …

Four main challenges that can underpin ongoing, intransigent debates about species limits
in birds are reviewed: allopatry (population subdivision vs. speciation), geographically …

How the origin of novel behaviors can shape the evolutionary trajectory of organisms in
response to environmental change remains poorly understood. Birds, especially those with …

Neotropical grassland birds are intimately tied to their habitat and form a phylogenetically
diverse group that has been poorly studied from an evolutionary point of view. Here we …

Aim Biotic interchange, speciation and extinction processes drive biotas assembling.
However, the evolutionary outcomes of those mechanisms are complex and difficult to …

The Neotropical avian genus Thraupis (Passeriformes, Thraupidae) currently comprises
seven species that are widespread and abundant throughout their ranges. However, no …

As aves encantam os seres humanos há muitos milênios, seja pela beleza de suas
plumagens, pelo seu canto ou pela capacidade de voar. No entanto, não são apenas esses …