The origin, distribution, and function of biological diversity are fundamental themes of
ecology and evolutionary biology. Research on birds has played a major role in the history …

Emerging large-scale datasets coupled with statistical advances have provided new insights
into the processes that generate the latitudinal diversity gradient (LDG). But many of these …

The profound and pervasive differences in gene expression observed between males and
females, and the unique evolutionary properties of these genes in many species, have led to …

Despite a conceptual understanding that evolution and species interactions are inextricably
linked, it remains challenging to study ecological and evolutionary dynamics together over …

Partial prezygotic isolation is often viewed as more important than partial postzygotic
isolation (low fitness of hybrids) early in the process of speciation. I simulate secondary …

The profound differences in gene expression between the sexes are increasingly used to
study the molecular basis of sexual dimorphism, sexual selection and sexual conflict …

Sexual selection is proposed to be a powerful driver of phenotypic evolution in animal
systems. At macroevolutionary scales, sexual selection can theoretically drive both the rate …

The colorful phenotypes of birds have long provided rich source material for evolutionary
biologists. Avian plumage, beaks, skin, and eggs—which exhibit a stunning range of cryptic …

Hybrid speciation is rare in vertebrates, and reproductive isolation arising from hybridization
is infrequently demonstrated. Here, we present evidence supporting a hybrid-speciation …

Phenotypic divergence can promote reproductive isolation and speciation, suggesting a
possible link between rates of phenotypic evolution and the tempo of speciation at multiple …