Abstract Theory predicts that sexually dimorphic traits under strong sexual selection, particularly
those involved with intersexual signaling, can accelerate speciation and produce bursts …

The Mascarene ridged frog, Ptychadena mascareniensis, is a species complex that includes
numerous lineages occurring mostly in humid savannas and open forests of mainland Africa…

Species with similar geographical distribution patterns are often assumed to have a shared
biogeographical history, an assumption that can be tested with a combination of molecular, …

Many classic examples of adaptive radiations take place within fragmented systems such as
islands or mountains, but the roles of mosaic landscapes and variable gene flow in …

Beak shape in Darwin's ground finches (Geospiza) is emblematic of natural selection and
adaptive radiation, yet our understanding of the genetic basis of beak shape variation, and …

Supergenes are clusters of tightly linked loci maintained in specific allelic combinations to
facilitate co-segregation of genes governing adaptive phenotypes. In species where strong …

The critically endangered mangrove finch is now limited to one small population on the west
coast of Isabela Island in the Galápagos, but 100 years ago multiple populations were …

The E astern A fromontane B iodiversity H otspot is known for microendemism and exceptional
population genetic structure. The region's landscape heterogeneity is thought to limit …

Background Peripatric speciation and peripheral isolation have uncertain importance in
species accumulation, and are largely overshadowed by assumed dominance of allopatric …

Background The East African spiny-throated reed frog complex (Hyperolius spinigularis, H.
tanneri, and H. minutissimus) is comprised of morphologically similar species with highly …