Seasonal migration is a taxonomically widespread behaviour that integrates across many
traits. The European blackcap exhibits enormous variation in migration and is renowned for …

Migratory divides are contact zones between populations that use different routes to navigate
around unsuitable areas on seasonal migration. Hybrids in divides have been predicted to …

Whole-genome sequencing projects are increasingly populating the tree of life and
characterizing biodiversity 1 , 2 , 3 – 4 . Sparse taxon sampling has previously been proposed to …

Migratory divides are contact zones between breeding populations that use divergent
migratory routes and have been described in a variety of species. These divides are of major …

Details on the genetics of behavioral and quantitative phenotypes remain limited to a few
organisms. Such information is central to understanding both adaptation and speciation, as …

Adaptation to new environments often occurs in the face of gene flow. Under these
conditions, gene flow and recombination can impede adaptation by breaking down linkage …

Differential gene flow, reductions in diversity following linked selection and/or features of the
genome can structure patterns of genomic differentiation during the process of speciation. …

Detailed evaluations of genomic variation between sister species often reveal distinct
chromosomal regions of high relative differentiation (ie, “islands of differentiation” in F ST ), but …

Recent technological developments allow investigation of the repeatability of evolution at the
genomic level. Such investigation is particularly powerful when applied to a ring species, in …

Ecologically mediated selection against hybrids, caused by hybrid phenotypes fitting poorly
into available niches, is typically viewed as distinct from selection caused by epistatic …