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Mechanisms of Life History EvolutionThe Genetics and Physiology of Life History Traits and Trade-Offs$
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Thomas Flatt and Andreas Heyland

Print publication date: 2011

Print ISBN-13: 9780199568765

Published to Oxford Scholarship Online: December 2013

DOI: 10.1093/acprof:oso/9780199568765.001.0001

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Hormonally-regulated trade-offs: Evolutionary variability and phenotypic plasticity in testosterone signaling pathways

Hormonally-regulated trade-offs: Evolutionary variability and phenotypic plasticity in testosterone signaling pathways

Chapter:
Chapter 26 Hormonally-regulated trade-offs: Evolutionary variability and phenotypic plasticity in testosterone signaling pathways
Source:
Mechanisms of Life History Evolution
Author(s):

Michaela Hau

John C. Wingfield

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199568765.003.0026

Hormones have been proposed as internal signals that mediate life history trade-offs in both invertebrates and vertebrates. This chapter reviews the evidence for such a role. It outlines possible endocrine pathways by which such hormones could mediate life history trade-offs, focusing on sex steroids in vertebrates, and discusses evolutionary scenarios that may account for interspecific variation in hormonally regulated life-history trade-offs. Throughout, it attempts to outline future research directions.

Keywords:   trade-offs, vertebrates, physiology, steroid hormone, androgen, evolution, phenotypic plasticity

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