Species diversification—the balance between speciation and extinction—is fundamental to
our understanding of how species richness varies in space and time and throughout the …

Far more species of organisms are found in the tropics than in temperate and polar regions,
but the evolutionary and ecological causes of this pattern remain controversial 1, 2. Tropical …

The tropics are the source of most biodiversity yet inadequate sampling obscures answers to
fundamental questions about how this diversity evolves. We leveraged samples assembled …

Speciation rates vary considerably among lineages, and our understanding of what drives
the rapid succession of speciation events within young adaptive radiations remains …

The state-dependent speciation and extinction (SSE) models have recently been criticized
due to their high rates of “false positive” results. Many researchers have advocated avoiding …

Understanding how and why diversification rates vary through time and space and across
species groups is key to understanding the emergence of today's biodiversity. Phylogenetic …

Estimates of diversification rates at the tips of a phylogeny provide a flexible approach for
correlation analyses with multiple traits and to map diversification rates in space while also …

Environmental change can create opportunities for increased rates of lineage diversification,
but continued species accumulation has been hypothesized to lead to slowdowns via …

Background Since the mid-20th century, it has been argued by some that the transition from
diploidy to polyploidy is an 'evolutionary dead end'in plants. Although this point has been …

Species‐specific diversification rates, or 'tip rates', can be computed quickly from
phylogenies and are widely used to study diversification rate variation in relation to …