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Hormones and Animal Social Behavior
Elizabeth Adkins-Regan

Book Description | Reviews
Chapter 1 [HTML] or [PDF format]


List of Illustrations and Tables ix
Preface xiii

Chapter 1: Hormonal Mechanisms 1
Why Does Social Behavior Need Hormonal Regulation? 3
Steroids 4
Steroid Synthesis and Metabolism 7
Steroid Measurement and Dynamics 9
Neuropeptides and Prolactin 11
Where and How Do Steroids Act to Alter Behavior? 13
Steroid Manipulation 18
Mechanisms of Peptide Action 19
Multiple Messengers,Multiple Behaviors 20
Hormones,Plasticity,and Development 21
How the Necessary Control of Steroids by the Environment Is Achieved: The HPG and HPA Axes 23
Diversity in Mechanisms 29
How "Costly" Are These Hormonal Mechanisms? 30

Chapter 2: Mating, Fighting, Parenting, and Signaling 34
Courtship and Mating 34
Individual and Species Variation in Hormone Dependence of Mating Behavior 42
Female Mating Behavior and Sex Differences in Hormone Dependence 44
Aggressive Behavior 49
Parental Behavior 52
How Hormones Alter Behavior: Circuits, Networks, and Processes 58
Daily and Seasonal Rhythms of Social Behavior 65
Hormones and Signaling 71
Hormonal Responses to Signals and Cues 82

Chapter 3: Social Relationships and Social Organization 92
Sociality 93
Dominance 94
Territoriality 98
Mating Systems 102
Mate Choice 108
Pairbonding 112
Parent -Offspring and Sibling Relationships 117
Cooperative Breeding and Alloparenting 122
Conclusions 130

Chapter 4: Development of Sexes and Types 131
Sex Determination and Morphological Sexual Differentiation 131
Sex Differences in Behavior and Brains 135
Sex Differences Due to Activational Hormone Effects 138
The Organization of Behavioral Sex Differences in Mammals 139
The Direct Genetic Differentiation Hypothesis 146
The Development of Sex Differences in Birds: Progress and Puzzles 148
Sexual Differentiation of Behavior in Other Vertebrates 155
Do Invertebrates Have Hormonally Organized Sex Differences in Behavior? 158
Sex-Changing Fish 160
Within-Sex Types (Within-Sex Dimorphism) 165
Comparative Overview 172

Chapter 5: Evolutionary Change and Species Differences 179
Heritable Phenotypic Variation: Individual Differences and Their Basis 179
Reproductive Success and Differential Fitness 187
Responses to Selection 193
Correlated Traits, Hormones,Costs, and Evolutionary Change 200
Hormones,Sexes,and Sexual Selection 202
Putting Hormonal Mechanisms in the Foreground 205
Genetic Architecture and Hormonally Based Sexual Dimorphism 213
The Perspective from Evolutionary Developmental Biology 214
Species Comparisons in Hormones and Behavior 218
Conclusions 222

Chapter 6: Life Stages and Life Histories 224
Life Histories,Fitness,and Hormones 224
Life Stages Prior to Reproductive Maturity 226
Onset of Reproductive Maturity: Puberty 233
Aging and Senescence 239
Hormones,Social Behavior, and Life History Trade-Offs 247
Conclusions 255

Chapter 7: Phylogeny:Conservation and Innovation 256
Oxytocin Family Peptides and Their Receptors 256
GnRH and Its Receptors 260
Steroid Receptors 263
Steroids and Steroidogenic Enzymes 266
Behavioral Phylogeny, Brains, and the Conservation Paradox 269
Steroid-Modulated Vocalization 272
Mating Behavior 276
Parental Behavior 277
Sex Determination and Sexual Differentiation 279
Conclusions 283

Afterword 285
References 287
Index 365

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File created: 4/21/2017

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