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Sexual Selection
Bright colors, enlarged fins, feather plumes, song, horns, antlers, and tusks are often highly sex dimorphic. Why have males in many animals evolved more conspicuous ornaments, signals, and weapons than females? How can such traits evolve although they may reduce male survival? Such questions prompt...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Princeton :
Princeton University Press,
1994.
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| Colección: | Monographs in Behavior and Ecology Ser.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover
- Title
- Copyright
- Dedication
- Contents
- Preface
- Acknowledgments
- 1 The Theory of Sexual Selection
- 1.1 Sexual Selection
- Anisogamy
- Competition over Mates
- Forms of Mating Competition
- 1.2 Sex Traits and Sexual Dimorphism
- 1.3 Criticism of Darwin's Theory of Sexual Selection
- 1.4 Selection of Secondary Sex Signals
- Pleiotropic Gene Effects
- Selection of Ecological Sex Differences
- Males Are Unprofitable Prey
- Male Contest Competition
- Female Choice and Mating Preferences
- 1.5 Evolution of Female Preferences for Male Traits
- The Fisher Process
- Indicator Mechanisms
- Species Recognition
- Direct Phenotypic Benefits
- Sensory Bias and the Origins of Preferences
- Mating Synchronization and Stimulation
- 1.6 Summary
- 2 Genetic Models of Fisherian Self-Reinforcing Sexual Selection
- 2.1 Introduction
- 2.2 Two-Locus Models
- 2.3 Polygenic Models
- 2.4 Direct Selection of Preferences, and Deleterious Mutations in the Preferred Trait
- Costs of Mate Choice
- Direct Benefits of Mate Choice
- 2.5 The Evolution of Sexual Dimorphism by Fisherian Sexual Selection
- 2.6 Speciation by Sexual Selection?
- 2.7 Empirical Tests
- Natural Selection Opposing Sexually Selected Traits
- Heritability of Trait and Preference
- Covariance between Trait and Preference
- 2.8 Summary
- 3 Genetic Models of Indicator Mechanisms
- 3.1 Introduction
- 3.2 Three-Locus Models
- Pure Epistatic Indicators
- Condition-dependent Indicators
- Revealing Indicators
- Comparison of 3-Locus Models
- 3.3 Polygenic Models
- 3.4 Indicators and Direct Phenotypic Benefits
- 3.5 The Heritability of Fitness
- Theory
- Empirical Results
- 3.6 Condition Dependence of Secondary Sex Traits
- Phenotypic Condition
- Age Dependence
- Fluctuating Asymmetry
- 3.7 Tests of Indicator Mechanisms
- Parasite-mediated Sexual Selection
- 3.8 Summary
- 4 Empirical Methods
- 4.1 Introduction
- 4.2 Observations and Experiments
- 4.3 Trends among Species: Comparative Approaches
- Qualitative Traits
- Quantitative Traits
- 4.4 Measures of Sexual Selection
- 4.5 Selection of Quantitative, Correlated Traits
- Theory
- Example: Sexual Selection in Darwin Finches
- 4.6 Summary
- 5 Some Case Studies
- 5.1 Causes of Sexual Selection in Male and Female Katydids
- 5.2 Male Coloration and Female Choice in the Guppy
- Natural Selection of Male Color Patterns
- Sexual Selection of Male Color Patterns
- Genetic Correlation between Female Preference and Male Ornaments
- 5.3 Advertisement Calls in the Tungara Frog
- 5.4 Plumage Ornaments in the Red-winged Blackbird and Long-tailed Widowbird
- Wing Epaulet
- Long Tail
- 5.5 Sexual Size Dimorphism in Elephant Seals
- 5.6 Secondary Sex Differences in Red Deer
- 5.7 Summary
- 6 Empirical Studies of Sexually Selected Traits: Patterns
- 6.1 Introduction
- 6.2 Patterns
- Types of Study
- Selection Mechanisms
- Selected Traits
- Open Questions