Given the availability of genomic data to identify separately evolving groups of organisms,
many researchers establish species limits based on assessments of the extent of gene flow …

We studied the phylogeny, biogeography, and diversification of suboscine passerines in the
genus Scytalopus (Rhinocryptidae), a widespread, species-rich, and taxonomically …

Closely related species with parapatric elevational ranges are ubiquitous in tropical
mountains worldwide. The gradient speciation hypothesis proposes that these series are the …

We assembled datasets of genetic(genomic ultraconserved elements[UCEs], mtDNA) and
phenotypic (morphology, voice) characters to address species limits and taxonomy in the …

Common distributional patterns have provided the foundations of our knowledge of
Neotropical biogeography. A distinctive pattern is the “circum‐Amazonian distribution” …

The Grallaria rufula complex is currently considered to consist of 2 species, G. rufula (Rufous
Antpitta) and G. blakei (Chestnut Antpitta). However, it has been suggested that the complex …

Aim Continental evolutionary radiations provide opportunities to understand how landscape
evolution and biotic factors interact to generate species diversity. Additionally …

Geographically connected species pairs with weakly differentiated genomes could either
represent cases of genomic homogenization in progress or of incipient parapatric …

Tropical mountains are biodiversity hotspots. In particular, mountains in the Neotropics
exhibit remarkable beta diversity reflecting species turnover along elevational gradients …

Natural history collections are increasingly valued as genomic resources. Their specimens
reflect the combined efforts of collectors and curators over hundreds of years. For many rare …