Name: Geographic Variation, Speciation, and Clines (en Inglés)
SKU: 19106611
Price: 90.07 USD
Availability: InStock
Author: John A. Endler

portada Geographic Variation, Speciation, and Clines (en Inglés)

Geographic Variation, Speciation, and Clines (en Inglés)

Formato

Libro Físico

Editorial

Princeton University Press

Autor

John A. Endler

Año

1977

Idioma

Inglés

N° páginas

260

Encuadernación

Tapa Blanda

ISBN

0691081921

ISBN13

9780691081922

Categorías

Evolución

Geographic Variation, Speciation, and Clines (en Inglés)

John A. Endler (Autor) · Princeton University Press · Tapa Blanda

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Reseña del libro "Geographic Variation, Speciation, and Clines (en Inglés)"

Geographic Variation, Speciation and Clines explores the origins and development of geographic variation, divergence, and speciation. In particular it is concerned with genetic divergence as it is usually found on continents, among groups of populations isolated only by distance. Although earlier writers on this topic considered the effects of geography and dispersal, intense geographic differentiation and speciation were thought to require complete isolation. Professor Endler shows how geographic differentiation and speciation may develop in spite of continuous gene flow. Following a review of the diverse and scattered literature on gene flow and population differentiation, the author discusses the relationships among gene flow, dispersal, and migration. He then summarizes the factors which limit the geographic extent of gene flow, and those which allow steep clines to develop in the absence of barriers to gene flow. His analysis draws on examples from the field, experiments, and single- and multiple-locus models. The mechanism and conditions for parapatric speciation are presented: steepening clines, development into hybrid zones, and the evolution of sexual isolation. In the final chapter the author considers the interpretation of natural clines and the associated geographic patterns of subspecies and species.