Complex speciation, involving rapid divergence and multiple bouts of post-divergence gene
flow, can obfuscate phylogenetic relationships and species limits. In North America, cases of …

Abstract The Caatinga of northeastern Brazil is the largest nucleus of the seasonally dry
tropical forest biome. Number of bird species in lists of the Caatinga often are quite different …

Rivers frequently delimit the geographic ranges of species in the Amazon Basin. These
rivers also define the boundaries between genetic clusters within many species, yet river …

The rich biodiversity of Amazonia is shaped geographically and ecologically by its rivers and
their cycles of seasonal flooding. Anthropogenic effects, such as deforestation, infrastructure …

ABSTRACT Aim The Amazon rainforest is one of the most biodiverse regions on earth, but
our understanding of the processes that have shaped its patterns of diversity remains …

Madagascar exhibits exceptionally high levels of biodiversity and endemism. Models to
explain the diversification and distribution of species in Madagascar stress the importance of …

Abstract Aim Distribution maps for Amazonian birds are often limited to species‐level
taxonomy even though many subspecies represent biological species. We provide digital …

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

Investigating parallel roles of geography and environmental heterogeneity in diversification
provides insights on how neutral and selective forces drive evolution of biological systems …

Geographic barriers are frequently invoked to explain genetic structuring across the
landscape. However, inferences on the spatial and temporal origins of population variation …