Geographic Variation, Speciation and Clines. (MPB-10), Volume 10 John A. Endler.

Format:

Book

Author/Creator:

Endler, John A., 1947-

Series:

Monographs in population biology ; 10.

Monographs in population biology ; 10

Language:

English

Subjects (All):

Evolution (Biology).

Clines.

Physical Description:

1 online resource (262 pages) : illustrations.

Edition:

2nd print., with corrections.

Manufacture:

Baltimore, Md. : Project MUSE, 2021

Place of Publication:

Princeton, N.J. : Princeton University Press, 1980.

Language Note:

In English.

Summary:

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.

Contents:

Frontmatter

Contents

CHAPTER ONE. Introduction

CHAPTER TWO. On Gene Flow

CHAPTER THREE. Properties of Glines

CHAPTER FOUR. Experimental Clines and the Effects of Interaction among Different Loci

CHAPTER FIVE. Parapatric Speciation

CHAPTER SIX. Secondary or Primary Intergradation ?

Glossary

Literature Cited

Subject Index

Author Index

Notes:

Includes bibliographical references and index.

Description based on print version record.

ISBN:

9780691081922

0691081921

9780691209456

0691209456

OCLC:

1227051736