Large Amazonian rivers impede dispersal for many species, but lowland river networks
frequently rearrange, thereby altering the location and effectiveness of river barriers through …

High intra-specific genetic diversity is associated with adaptive potential, which is key for
resilience to global change. However, high variation may also support deleterious alleles …

Quaternary climatic oscillations had a large impact on European biogeography. Alternation
of cold and warm stages caused recurrent glaciations, massive vegetation shifts, and large …

Alpine biotas are paradigmatic of the countervailing roles of geographical isolation and
dispersal during diversification. In temperate regions, repeated distributional shifts driven by …

Genomes are heterogeneous during the early stages of speciation, with small 'islands' of
DNA appearing to reflect strong adaptive differences, surrounded by vast seas of relative …

Insights from conservation genomics have dramatically improved recovery plans for
numerous endangered species. However, most taxa have yet to benefit from the full …

Numerous mechanisms can drive speciation, including isolation by adaptation, distance,
and environment. These forces can promote genetic and phenotypic differentiation of local …

Postdivergence gene flow can trigger a number of creative evolutionary outcomes, ranging
from the transfer of beneficial alleles across species boundaries (ie, adaptive introgression) …

An intricate interplay between evolutionary and demographic processes has frequently
resulted in complex patterns of genetic and phenotypic diversity in alpine lineages, posing …

Identifying the drivers of microgeographic speciation (ie, speciation over small, local
geographic scales) is key to understand the origin of speciose groups. Here, we use …