As a result of the process of descent with modification, closely related species tend to be
similar to one another in a myriad different ways. In statistical terms, this means that traits …

If particular traits consistently affect rates of speciation and extinction, broad macroevolutionary
patterns can be interpreted as consequences of selection at high levels of the biological …

Although numerous studies have surveyed the frequency with which different plant characters
are associated with polyploidy, few statistical tools are available to identify the factors that …

Estimating time-dependent rates of speciation and extinction from dated phylogenetic trees
of extant species (timetrees), and determining how and why they vary, is key to …

The complex island archipelagoes of Wallacea and Melanesia have provided empirical data
behind integral theories in evolutionary biology, including allopatric speciation and island …

Pollinator-mediated selection is a major driver of evolution in flowering plants, contributing
to the vast diversity of floral features. Despite long-standing interest in floral variation and the …

PREMISE OF THE STUDY: Whole‐genome duplications (WGDs) can rapidly increase
genome size in angiosperms. Yet their mean genome size is not correlated with ploidy. We …

Variation in species richness across the tree of life, accompanied by the incredible variety of
ecological and morphological characteristics found in nature, has inspired many studies to …

Species diversity can vary dramatically across lineages due to differences in speciation and
extinction rates. Here, we explore the effects of several plant traits on diversification, finding …

Testing adaptive hypotheses about how continuous traits evolve in association with
developmentally structured discrete traits, while accounting for the confounding influence of other, …