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Sperm Competition and Its Evolutionary Consequences in the Insects : Monographs in Behavior and Ecology - Leigh W. Simmons

Sperm Competition and Its Evolutionary Consequences in the Insects

Monographs in Behavior and Ecology

Paperback Published: 11th November 2001
ISBN: 9780691059884
Number Of Pages: 456

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One hundred years after Darwin considered how sexual selection shapes the behavioral and morphological characteristics of males for acquiring mates, Parker realized that sexual selection continues after mating through sperm competition. Because females often mate with multiple males before producing offspring, selection favors adaptations that allow males to preempt sperm from previous males and to prevent their own sperm from preemption by future males. Since the 1970s, this area of research has seen exponential growth, and biologists now recognize sperm competition as an evolutionary force that drives such adaptations as mate guarding, genital morphology, and ejaculate chemistry across all animal taxa. The insects have been critical to this research, and they still offer the greatest potential to reveal fully the evolutionary consequences of sperm competition.

This book analyzes and extends thirty years of theoretical and empirical work on insect sperm competition. It considers both male and female interests in sperm utilization and the sexual conflict that can arise when these differ. It covers the mechanics of sperm transfer and utilization, morphology, physiology, and behavior. Sperm competition is shown to have dramatic effects on adaptation in the context of reproduction as well as far-reaching ramifications on life-history evolution and speciation.

Written by a top researcher in the field, this comprehensive, up-to-date review of the evolutionary causes and consequences of sperm competition in the insects will prove an invaluable reference for students and established researchers in behavioral ecology and evolutionary biology.

"Leigh Simmons is better qualified than most to define the current state of sperm competition. This book is an exellent summary of a recent, important, and relatively large addition to our understanding of evolution and its consequences. It is an essential read for anyone interested in the reproductive determinates of fitness."--Michael T. Siva-Jothy, Nature "An introductory chapter clearly presents fundamental concepts and terms and general methods used for quantifying sperm competition... Numerous figures and tables enhance the value of this work, which includes more than 1,000 references. Highly recommended for evolutionary biologists, behavioral ecologists, and entomologists."--Choice "This well-illustrated, heavily referenced book will be valuable to researches interested in the evolution of reproductive biology, no matter what group they study."--John Alcock, The Quarterly Review of Biology

Prefacep. ix
Dedication and Acknowledgmentsp. xv
Sexual Selection and Sperm Competitionp. 1
Sexual Selectionp. 1
Sexual Differences and the Evolution of Anisogamyp. 5
Sperm Competition and Sexual Selectionp. 10
Summaryp. 20
Sperm Utilization: Concepts, Patterns, and Processesp. 22
Introductionp. 22
Classification and Definition of Terms Used in the Sperm Competition Literaturep. 23
Quantifying Paternityp. 29
Patterns of Sperm Utilization: An Overviewp. 37
Mechanismsp. 40
Sperm Utilization and Multiple Matingp. 53
Sperm Utilization in Natural Populationsp. 55
Mechanisms and the Potential for Selectionp. 56
Summaryp. 60
Avoidance of Sperm Competition I: Morphological Adaptationsp. 69
Introductionp. 69
Internal Fertilizationp. 69
Sperm Removal and Repositioningp. 70
Alternative Explanations for Complex Genitaliap. 82
Summaryp. 89
Avoidance of Sperm Competition II: Physiological Adaptationsp. 91
Introductionp. 91
Mating Plugsp. 97
Seminal Productsp. 114
Pheromonesp. 141
Summaryp. 142
Avoidance of Sperm Competition III: Behavioral Adaptationsp. 144
Introductionp. 144
Theoretical Models of Mate Guardingp. 146
Evidence for Mate Guarding in Insectsp. 149
Alternative Hypothesesp. 168
Adaptations for Efficient Guardingp. 179
Male Mate Choicep. 183
Summaryp. 186
Copula Durationp. 198
Introductionp. 198
Sperm Displacement: Optimal Copula Duration in Dung Fliesp. 202
Copula Duration with Sperm Mixingp. 212
Evidence Consistent with an Optimization of Copula Durationp. 213
Female Influencesp. 218
Alternative Explanationsp. 220
Summaryp. 221
Sperm in Competition I: Strategic Ejaculationp. 223
Introductionp. 223
Sperm Competition Gamesp. 227
Cryptic Male Choicep. 245
Cryptic Female Choicep. 247
Summaryp. 249
Sperm in Competition II: Sperm Morphologyp. 250
Introductionp. 250
Sperm Sizep. 252
Sperm Polymorphismp. 263
Intraejaculate Sperm Competitionp. 274
Summaryp. 275
Ejaculate Manipulation: Mechanisms of Female Choicep. 277
Introductionp. 277
Influence over Rematingp. 279
Influence over Sperm Transferp. 282
Influence over Sperm Storagep. 288
Sperm Selectionp. 299
Summaryp. 317
Social Insectsp. 319
Introductionp. 319
Multiple Mating and Multiple Paternityp. 320
Social Consequences of Sperm Competitionp. 325
Alternative Hypotheses for Multiple Matingp. 334
Summaryp. 341
Broader Significancep. 349
Sperm Competition and Sexual Selectionp. 349
Life History Evolutionp. 350
Speciationp. 354
Concluding Remarksp. 356
Referencesp. 357
Taxonomic Indexp. 427
Subject Indexp. 432
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780691059884
ISBN-10: 0691059888
Series: Monographs in Behavior and Ecology
Audience: Tertiary; University or College
Format: Paperback
Language: English
Number Of Pages: 456
Published: 11th November 2001
Country of Publication: US
Dimensions (cm): 23.37 x 15.6  x 2.74
Weight (kg): 0.64