Net diversification rates were estimated for samples of primarily tribe‐to‐family‐level clades
of passerine birds, taking into account extinction as well as speciation. Two samples were …

Aim One prominent explanation for the latitudinal gradient in biodiversity proposes that its
prime cause is the greater age and/or higher origination rates of tropical clades, and the …

The distribution of species richness in families of passerine birds suggests that the net rate
of diversification was significantly higher than average in as many as 7 out of 47 families …

Patterns of evolution are believed to vary latitudinally, but our understanding of this variation
remains limited. Here we examine how patterns of subspecific diversification vary within …

Study of the latitudinal diversity gradient to date has focused largely on pattern description,
with relatively little work on the possible mechanisms underlying the pattern. One proximate …

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 …

Phylogeographical analyses provide information about the role of evolutionary processes
underlying species diversity of the Neotropical montains. We used mitochondrial DNA …

Phylogenetic analysis provides an important tool for assessing the influence of historical and
evolutionary processes on the structure of contemporary ecological systems. Patterns of …

Central to many explanations of latitudinal diversity gradients is the idea that rates of species
diversification increase towards the equator. However, there have been few explicit tests of …

Latitudinal variation among species in life‐history traits is often suggested to contribute to
high tropical species richness. However, traditional methods of analysing such variation …