How do new species form? Like most areas of Evolutionary Biology, research related to the formation of new species - 'speciation ' - is rich in historical and current debate. Here, we review both ...

2001. Evolutionary implications of divergent clines in a manakin (Manacus; Aves) hybrid zone. Evolution 55: 2070-2087. *Bush, G.L. 1994. Sympatric speciation in animals new wine in old bottles. TREE 9 ...

2. Speciation in historical perspective Will Provine Part I. Theories of Speciation: Introduction to Part I 3. Genetic theories of sympatric speciation Tadesusz J. Kawecki 4. Adaptive dynamics of ...

The biological equivalent is "allopatric speciation," an evolutionary process in which one species divides into two because the original homogenous population has become separated and both groups ...

Behavioral and phenotypic traits are thought to play a key role early in speciation by influencing where and when individuals come into contact and whether closely related organisms are recognized as ...