Ecological opportunity – through entry into a new environment, the origin of a key innovation
or extinction of antagonists – is widely thought to link ecological population dynamics to …

Divergent natural selection has been shown to promote speciation in many taxa. However,
although divergent selection often initiates the process of speciation, it often fails to complete …

Ecological neutral theory has elicited strong opinions in recent years. Here, we review these
opinions and strip away some unfortunate problems with semantics to reveal three major …

… Second, GEIGER implements the approach for comparing levels of phenotypic disparity
within and among clades that is described in Harmon et al. (2003). This approach provides a …

Faces, like fingerprints and snow flakes, come in virtually infinite va riety. There is little chance
of en countering two so similar they cannot be distinguished, even on casual inspection. …

Objective: Decades-old, common ICU practices including deep sedation, immobilization, and
limited family access are being challenged. We endeavoured to evaluate the relationship …

George Gaylord Simpson famously postulated that much of life's diversity originated as
adaptive radiations—more or less simultaneous divergences of numerous lines from a single …

The uneven distribution of species richness is a fundamental and unexplained pattern of
vertebrate biodiversity. Although species richness in groups like mammals, birds, or teleost …

… We decided to fix the bounds at u = 10 and l = −10, and vary the evolutionary rate by
manipulating μ across simulations as for scenario 1 above. This model corresponds to the situation …

Phylogenetic comparative methods are essential for addressing evolutionary hypotheses
with interspecific data. The scale and scope of such data have increased dramatically in the …