Late Pleistocene glaciations have been ascribed a dominant role in sculpting present-day
diversity and distributions of North American vertebrates. Molecular comparisons of recently …

Estimates of global species diversity have varied widely, primarily based on variation in the
numbers derived from different inventory methods of arthropods and other small invertebrates…

The birds in the family Parulidae—commonly termed the New World warblers or wood-warblers—are
a classic model radiation for studies of ecological and behavioral differentiation. …

Separated throughout most of the Cenozoic era, North and South America were joined
during the mid‐Pliocene when the uplift of Panama formed a land bridge between these two …

Studies on Neotropical phylogeography have largely focused on lowland organisms. Because
lowland and highland biotas have different histories and are likely affected by different …

Understanding the biogeographic origins and temporal sequencing of groups within a region
or of lineages within an ecosystem can yield important insights into evolutionary dynamics …

Recent analyses suggest that a few major shifts in diversification rate may be enough to
explain most of the disparity in diversity among vertebrate lineages. At least one significant …

Understanding the evolutionary history of the species in a particular region provides insights
into how that fauna was formed. Of particular interest to biogeographers is examining the …

Thraupidae is the second largest family of birds and represents about 4% of all avian
species and 12% of the Neotropical avifauna. Species in this family display a wide range of …

Most Neotropical lowland forest taxa occur exclusively on one side of the Andes despite the
availability of appropriate habitat on both sides. Almost all molecular phylogenies and …