Tropical Africa is home to an astonishing biodiversity occurring in a variety of ecosystems.
Past climatic change and geological events have impacted the evolution and diversification …

Ecological processes are central to the formation of new species when barriers to gene flow
(reproductive isolation) evolve between populations as a result of ecologically‐based …

In recent years, scientists have realized that evolution can occur on timescales much shorter
than the" long lapse of ages" emphasized by Darwin—in fact, evolutionary change is …

Adaptive radiation plays a fundamental role in our understanding of the evolutionary
process. However, the concept has provoked strong and differing opinions concerning its …

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 …

The long-awaited revision of the industry standard on phylogenetics Since the publication of
the first edition of this landmark volume more than twenty-five years ago, phylogenetic …

Documenting and exploring the patterns of diversity of life on Earth has always been a
central theme in biology. Species richness despite being the most commonly used measure …

Since Darwin, the diversity of flowers has been attributed to selection by pollinators.
Although pollinators commonly act as selective agents on floral traits, determining the extent …

Sympatric speciation, the evolution of reproductive isolation without geographic barriers,
remains highly contentious. As a result of new empirical examples and theory, it is now …

Geographic characters—traits describing the spatial distribution of a species—may both
affect and be affected by processes associated with lineage birth and death. This is …