Climate change in the past has led to significant changes in species' distributions. However,
how individual species respond to climate change depends largely on their adaptations and …

For over half a century, it has been known that the rate of morphological evolution appears
to vary with the time frame of measurement. Rates of microevolutionary change, measured …

Phylogenetic trees in insects are frequently dated by applying a “standard” mitochondrial
DNA (mtDNA) clock estimated at 2.3% My− 1, but despite its wide use reliable calibration …

Estimation of demographic history from nucleotide sequences represents an important
component of many studies in molecular ecology. For example, knowledge of a population's …

Although temporal calibration is widely recognized as critical for obtaining accurate
divergence-time estimates using molecular dating methods, few studies have evaluated the …

Molecular evolutionary rate estimates have been shown to depend on the time period over
which they are estimated. Factors such as demographic processes, calibration errors …

Double-stranded (ds) DNA viruses are often described as evolving through long-term
codivergent associations with their hosts, a pattern that is expected to be associated with low …

Singletons—species only known from a single specimen—and uniques—species that have
only been collected once—are very common in biodiversity samples. Recent reviews …

Summary Background Polar bears (Ursus maritimus) are among those species most
susceptible to the rapidly changing arctic climate, and their survival is of global concern …

The savannah biome of sub‐Saharan Africa harbours the highest diversity of ungulates
(hoofed mammals) on Earth. In this review, we compile population genetic data from 19 …