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 …

Secondary contact between species often results in the formation of a hybrid zone, with the
eventual fates of the hybridizing species dependent on evolutionary and ecological forces …

Common distributional patterns have provided the foundations of our knowledge of
Neotropical biogeography. A distinctive pattern is the “circum‐Amazonian distribution” …

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

Aim Ecological, climatic and palaeogeographical processes drive biological diversification.
However, the evolutionary outcomes of those mechanisms are complex and difficult to …

The black-throated trogon, Trogon rufus, is a widespread, polytypic species-complex with a
convoluted taxonomic history. Here, we integrated morphological, vocal and genetic …

An open and dry vegetation belt separates Amazonia (AM) and the Atlantic Forest (AF).
Evidence from palaeoclimatic and phylogenetic studies suggests past connections between …

The northeast Brazilian state of Alagoas harbors a rather diverse, and one of the world's
most threatened, avifauna. However, the knowledge about its avifauna is currently scattered …

After establishing secondary contact, recently diverged populations may remain
reproductively isolated or may hybridize to a varying extent depending on factors such as …

Accurate estimates of species diversity are essential for all biodiversity research. Delimiting
species and understanding the underlying processes of speciation are also central …