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Eco-evolutionary Dynamics$
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Andrew P. Hendry

Print publication date: 2016

Print ISBN-13: 9780691145433

Published to Princeton Scholarship Online: January 2018

DOI: 10.23943/princeton/9780691145433.001.0001

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Adaptive Divergence

Adaptive Divergence

(p.81) Chapter 4 Adaptive Divergence
Eco-evolutionary Dynamics

Andrew P. Hendry

Princeton University Press

This chapter analyzes how the adaptive landscape concept can be extended from a single population in a single environment to multiple populations in multiple environments. Specifically, different environments produce different fitness peaks and divergent selection then drives different populations toward those different peaks. The chapter outlines methods for inferring adaptive divergence with respect to both phenotypes and fitness. It then turns to a review of empirical data informing several key questions about adaptive divergence in nature, including how prevalent and strong it is, how many peaks adaptive landscapes have, how predictable it is (parallel and convergent evolution), and what the role of sexual selection is in modifying adaptive divergence.

Keywords:   adaptive landscape, multiple populations, multiple environments, fitness peaks, adaptive divergence, sexual selection

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