Songbirds (oscine passerines) are the most species-rich and cosmopolitan bird group,
comprising almost half of global avian diversity. Songbirds originated in Australia, but the …

The ultimate field guide to the birds of Argentina, an indispensable companion for any
traveller to the region. This spectacular field guide is the ultimate reference to the birds of …

Aim We used frogs of the clade Allocentroleniae (Centrolenidae+ Allophrynidae; c. 170
species endemic to Neotropical rain forests) as a model system to address the historical …

An implicit assumption of speciation biology is that population differentiation is an important
stage of evolutionary diversification, but its significance as a rate-limiting control on …

Abstract Puya (Bromeliaceae), with> 200 species, is a classic example of a recent, rapid
species-level radiation in the Andes. To assess the biogeographical history of this primarily …

Paleoclimatic and paleogeological events have been identified as being the two main
drivers of genetic structuring in extant organisms. We used a montane stream‐dwelling frog …

How traits affect speciation is a long-standing question in evolution. We investigate whether
speciation rates are affected by the traits themselves or by the rates of their evolution, in …

Colombia hosts the second highest amphibian species diversity on Earth, yet its fauna
remains poorly studied, especially using molecular genetic techniques. We present the …

Tropical mountains are disproportionately biodiverse relative to their surface area, but the
processes underlying their exceptional diversity require further study. Here, we use …

Understanding why species richness peaks along the Andes is a fundamental question in
the study of Neotropical biodiversity. Several biogeographic and diversification scenarios …