Hybridization is not always limited to two species; often multiple species are interbreeding.
In birds, there are numerous examples of species that hybridize with multiple other species …

Abstract The Atlantic rainforest of Brazil harbors outstanding species richness and levels of
endemism, representing one of the most biodiverse regions on Earth. Yet, a lot is still …

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 …

Although vicariant processes are expected to leave similar genomic signatures among
codistributed taxa, ecological traits such as habitat and stratum can influence genetic …

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

Abstract The Pernambuco Center of Endemism (PCE) is the northernmost strip of the Atlantic
Forest (AF). Biogeographic affinities among avifaunas in the PCE, the southern-central …

Habitat-specific thermal responses are well documented in various organisms and likely
determine the vulnerability of populations to climate change. However, the underlying roles …

The role of historical factors in establishing patterns of diversity in tropical mountains is of
interest to understand the buildup of megadiverse biotas. In these regions, the historical …

Recently diverged taxa are often characterised by high rates of introgressive hybridization
and incomplete lineage sorting, both of which can complicate phylogenetic reconstructions …

Abstract The Velazquez Woodpecker Melanerpes santacruzi is a highly polytypic species
distributed from east-central Mexico to northern Nicaragua. The ample variation in body size …