Aim The aim of this research is to develop and investigate methods for the spatial analysis of
diversity based on genetic and taxonomic units of difference. We use monophyletic groups …

Bringing together the viewpoints of leading ecologists concerned with the processes that
generate patterns of diversity, and evolutionary biologists who focus on mechanisms of …

510 SYSTEMATIC BIOLOGY VOL. 47 their definition of a cladistic character as" a feature of
organisms that can be evaluated as a variable with two or more mutually exclusive and …

A frequent outcome when studying complex biological systems is that data collected to test a
specific hypothesis can be interpreted several ways, and interpretations can be influenced …

A decade ago Sites and Marshall [1] described the empirical practice of species delimitation
as “a Renaissance issue in systematic biology”. At the time there was an odd disconnect …

Species concepts are paradigms that inspire questions about how new species arise, and
thereby play an important role in directing the speciation biologist toward worthwhile topics …

The methods of data exploration have become the centerpiece of phylogenetic inference,
but without the scientific importance of those methods having been identified. We examine in …

The amount and patterns of phylodiversity in a community are often used to draw inferences
about the local and historical factors affecting community assembly and can be used to …

Hypotheses about the adaptive significance of a trait have long been tested by making
comparisons among species. Many recent studies emphasized that conclusions about the …

Traditional views on deep evolutionary events have been seriously challenged over the last
few years, following the identification of major pitfalls affecting molecular phylogeny …