Lower C entral A merica (LCA) provides a geologically complex and dynamic, richly
biodiverse model for studying the recent assembly and diversification of a N eotropical biota …

Dated molecular phylogenies of broadly distributed lineages can help to compare patterns
of diversification in different parts of the world. An explanation for greater Neotropical …

An implicit assumption of speciation biology is that population differentiation is an important
stage of evolutionary diversification, but its significance as a rate-limiting control on …

Local adaptation of populations along elevational gradients is well known, but conclusive
evidence that such divergence has resulted in the origin of distinct species in parapatry …

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

We used a comparative phylogeographical approach to investigate the origins of the
disjunct wet forest biota of the Golfo Dulce region along the Pacific slope of Costa Rica. This …

Wrens of the genus Thryothorus comprise over a third of the species diversity in the family
Troglodytidae. In addition to this species diversity, these wrens vary in a number of …

The toucan genus Ramphastos (Piciformes: Ramphastidae) has been a model in the
formulation of Neotropical paleobiogeographic hypotheses. Weckstein (2005) reported on …

The Rufous-tailed Hummingbird (Amazilia tzacatl) is a common resident of the neotropical
lowlands of Middle America and northern South America. The Escudo Hummingbird (A. t …

Genetic variation in the common bush‐tanager Chlorospingus ophthalmicus complex in
Mesoamerica was studied. An 800‐bp mitochondrial DNA fragment, including a portion of …