Hybrid Zones and the Evolutionary Process
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Hybrid zones—geographical areas in which the hybrids of two races are found—have attracted the attention of evolutionary biologists for many years, both because they are windows on the evolutionary process and because the patterns of animals and plant variation seen in hybrid zones do not fit the traditional classification schemes of taxonomists. Hybrid zones provide insights into the nature of the species, the way barriers to gene exchange function, the genetic basis of those barriers, the dynamics of the speciation process. Hybrid Zones and the Evolutionary Process synthesizes the extensive research literature in this field and points to new directions in research. It will be read with interest by evolutionary biologists, geneticists, and biogeographers.
ContributorsPt. IHybrid Zone Pattern and Process11Hybrids and Hybrid Zones: Historical Perspective32Genetic Analysis of Hybrid Zones133Reinforcement: Origin, Dynamics, and Fate of an Evolutionary Hypothesis464Introgression and Its Consequences in Plants70Pt. IICase Studies of Hybrid Zones1115Natural Hybridization in Louisiana Irises: Genetic Variation and Ecological Determinants1156After the Ice: Parallelus Meets Erythropus in the Pyrenees1407Genomic and Environmental Determinants of a Narrow Hybrid Zone: Cause or Coincidence1658Nature of Selection in the Northern Flicker Hybrid Zone and Its Implications for Speciation Theory1969Speciation, Raciation, and Color Pattern Evolution in Heliconius Butterflies: Evidence from Hybrid Zones22610Analysis of Hybrid Zones with Bombina26111Hybridization and Hybrid Zones in Pocket Gophers (Rodentia, Geomyidae)29012Chromosomal Hybrid Zones in Eutherian Mammals309Index355
