The S outh A merican continent is composed of several biogeographical regions harbouring
the highest biodiversity on the globe, encompassing five of the world's biodiversity 'hot …

Landscape dynamics are widely thought to govern the tempo and mode of continental
radiations, yet the effects of river network rearrangements on dispersal and lineage …

Ecological opportunities and physical challenges of fast-water habitats have dramatically
shaped the evolution of freshwater fish lineages from a broad diversity of clades globally …

The fish faunas of continental South and Central America constitute one of the greatest
concentrations of aquatic diversity on Earth, consisting of about 10 percent of all living …

Abstract Background The megadiverse Neotropical freshwater ichthyofauna is the richest in
the world with approximately 6,000 recognized species. Interestingly, they are distributed …

Ibis is the second of three volumes of Keys to the Trematoda, a series on the systematics
and identification of the Class Trematoda Rudolphi, 1808 of the Phylum Platyhelminthes. It …

Aim To investigate biogeographical patterns of the obligate freshwater fish order
Characiformes. Location South America. Methods Parsimony analysis of endemicity …

The mitochondrial cytochrome b (cyt-b) gene is widely used in systematic studies to resolve
divergences at many taxonomic levels. The present study focuses mainly on the utility of cyt …

Abstract Tropical South America possesses the largest ichthyofauna of any continental
region. To test whether palaeohydrological changes may have been the causes of such …

The evolutionary radiations of Neotropical electric fishes (Gymnotiformes) provide unique
materials for studies on the evolution of specialized sensory systems and the diversification …