Natural Hybridization and Evolution

Paperback | January 30, 1997

byMichael L. Arnold

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This study draws on data from numerous sources that support the paradigm of natural hybridization as an important evolutionary process. The review of these data results in a challenge to the framework used by many evolutionary biologists, which sees the process of natural hybridization asmaladaptive because it represents a violation of divergent evolution. In contrast, this book presents evidence of a significant role for natural hybridization in furthering adaptive evolution and evolutionary diversification in both plants and animals.

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This study draws on data from numerous sources that support the paradigm of natural hybridization as an important evolutionary process. The review of these data results in a challenge to the framework used by many evolutionary biologists, which sees the process of natural hybridization asmaladaptive because it represents a violation of...

Michael L. Arnold is at University of Georgia.

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Format:PaperbackDimensions:232 pages, 9.25 × 6.14 × 0.63 inPublished:January 30, 1997Publisher:Oxford University Press

The following ISBNs are associated with this title:

ISBN - 10:0195099753

ISBN - 13:9780195099751

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Table of Contents

1. Natural Hybridization: Definitions and History2. Natural Hybridization and Species Concepts3. Natural Hybridization: Frequency4. Reproductive Parameters and Natural Hybridization5. Natural Hybridization: Concepts and Theory6. Natural Hybridization: Outcomes7. Natural Hybridization: Emerging PatternsReferencesIndex

Editorial Reviews

"Arnold defines natural hybridization as a process in which successful matings occur in nature between individuals from two or more populations which are distinguishable on the basis of one or more heritable characters. Hybrids are the result . . . Hybrid zones are places where two or morepopulations of individuals that are distinguishable on the basis of one or more heritable characters overlap spatially and temporally, and cross to form viable and at least partially fertile offspring. Introgression is the movement of genes or alleles from one population or species into another. . .. Hybridization and introgression have been neglected in evolutionary biology since the 1940's. Arnold's book shows why we should not ignore these phenomena . . . The major hypothesis of Arnold's book is that natural hybridization can affect the evolutionary history of the groups in which it occurs. . . This book generates much thought and I recommend it highly."--Evolution