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Wright’s Shifting Balance Theory and Factors Affecting the Probability of Peak Shifts

Charles J. Goodnight

in The Adaptive Landscape in Evolutionary Biology

Published in print:
2013
Published Online:
December 2013
ISBN:
9780199595372
eISBN:
9780191774799
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199595372.003.0006
Subject:
Biology, Evolutionary Biology / Genetics

Sewall Wright's shifting balance theory remains controversial in part because it is what would today be called a complex systems model that was never developed beyond that of a metaphor. A key ... More


Wright’s Adaptive Landscape: Testing the Predictions of his Shifting Balance Theory

Michael J. Wade

in The Adaptive Landscape in Evolutionary Biology

Published in print:
2013
Published Online:
December 2013
ISBN:
9780199595372
eISBN:
9780191774799
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199595372.003.0005
Subject:
Biology, Evolutionary Biology / Genetics

Our understanding of Wright's shifting balance theory (SBT) has deepened and its empirical predictions have been enriched by the theoretical, field and laboratory experimental research. Whereas ... More


Wright’s Adaptive Landscape Versus Fisher’s Fundamental Theorem

Steven A. Frank

in The Adaptive Landscape in Evolutionary Biology

Published in print:
2013
Published Online:
December 2013
ISBN:
9780199595372
eISBN:
9780191774799
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199595372.003.0004
Subject:
Biology, Evolutionary Biology / Genetics

Two giants of evolutionary theory, Sewall Wright and R. A. Fisher, fought bitterly for over thirty years. The Wright–Fisher controversy forms a cornerstone of the history and philosophy of biology. ... More


Mimicry, Saltational Evolution, and the Crossing of Fitness Valleys

Olof Leimar, Birgitta S. Tullberg, and James Mallet

in The Adaptive Landscape in Evolutionary Biology

Published in print:
2013
Published Online:
December 2013
ISBN:
9780199595372
eISBN:
9780191774799
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199595372.003.0016
Subject:
Biology, Evolutionary Biology / Genetics

Mimicry and aposematism are phenomena for which the concept of an adaptive landscape has proven helpful. In mimicry evolution, members of a species become similar in appearance to an aposematic model ... More


Adaptation in Metapopulations: How Interaction Changes Evolution

Michael J. Wade

Published in print:
2016
Published Online:
January 2017
ISBN:
9780226129563
eISBN:
9780226129877
Item type:
book
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226129877.001.0001
Subject:
Biology, Evolutionary Biology / Genetics

The central question addressed in this book is this: How is the process of adaptation different if the members of a population live clustered in small groups instead of being homogenously distributed ... More


Experimental Studies of Wright’s Shifting Balance Theory

Michael J. Wade

in Adaptation in Metapopulations: How Interaction Changes Evolution

Published in print:
2016
Published Online:
January 2017
ISBN:
9780226129563
eISBN:
9780226129877
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226129877.003.0009
Subject:
Biology, Evolutionary Biology / Genetics

This chapter contains a discussion of the ecological and the genetic basis for Sewall Wright’s Shifting Balance Theory. It also relays discussions of the author with Wright about how to ... More


First steps: biogeography, hybridization, and the origins of novel patterns

Chris D. Jiggins

in The Ecology and Evolution of Heliconius Butterflies

Published in print:
2016
Published Online:
April 2017
ISBN:
9780199566570
eISBN:
9780191833922
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199566570.003.0010
Subject:
Biology, Evolutionary Biology / Genetics, Biodiversity / Conservation Biology

Warning colour patterns in Heliconius show great diversity as well as convergence due to mimicry. This chapter considers the origins of such diversity. Heliconius have been proposed as an example of ... More


Long-term Response: 2. Finite Population Size and Mutation

Bruce Walsh and Michael Lynch

in Evolution and Selection of Quantitative Traits

Published in print:
2018
Published Online:
September 2018
ISBN:
9780198830870
eISBN:
9780191868986
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198830870.003.0026
Subject:
Biology, Evolutionary Biology / Genetics, Biochemistry / Molecular Biology

In a finite population, drift is often more important than selection in removing any initial additive variance. This chapter examines the joint impact of selection, drift, and mutation on the ... More


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