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درباره این کتاب:
This book
provides a comprehensive review of
hermaphroditism in fishes. It focuses on
the behavioral ecology of functional
hermaphroditism in fishes and discusses
its evolution.
Approximately 99% of all vertebrate
species consist of separate-sex
individuals (gonochorists), i.e., pure
males and pure females. The other 1% of
vertebrate species are hermaphroditic, and
almost all of them are fishes. Among
hermaphroditic fishes, four major types of
hermaphroditism are known: simultaneous
(or synchronous) hermaphroditism,
protandry (male-to-female sex change),
protogyny (female-to-male sex change), and
bidirectional sex change (or reversed sex
change in protogynous species).
The book examines the occurrence of
hermaphroditism in relation to phylogeny
and mating systems. It also reviews the
hypotheses for the evolution of
hermaphroditism, and the size-advantage
model, which is the main theory for the
evolution of sex change, tested in
relation to the mating system. The
appendix in the last chapter provides an
annotated list of hermaphroditic fish
species (ca. 500 spp.)..
■ در این کتاب چه
میخوانیم:
Chapter 1:
Evolution of Hermaphroditism in Fishes:
Phylogeny and Theory 1.1 Types and
Frequencies of Hermaphroditism in Fishes
1.2 Phylogeny of Hermaphroditic Fishes and
Their Habitat 1.3 Theories for the
Evolution of Hermaphroditism 1.4 Mating
System and Social Control of Sex Change
1.5 Physiological Mechanisms of Sex Change
1.6 Conclusions References Chapter 2:
Simultaneous Hermaphroditism in Fishes 2.1
What Is Simultaneous Hermaphroditism? 2.2
Evolutionary Theory for Simultaneous
Hermaphroditism 2.3 Deep-Sea Aulopiforms
2.4 Self-Fertilization and Androdioecy in
Killifishes 2.5 Hermaphroditism and Egg
Trading in Serranids 2.6 Other Taxa 2.7
Future Research Directions 2.8 Conclusions
References Chapter 3: Protandry in Fishes
3.1 Evolution of Protandry and Types of
Sexual Patterns 3.2 Anemonefish
(Amphiprion; Pomacentridae) 3.2.1 Mating
System and Proximate Cause of Sex Change
3.2.2 Why Monogamy? 3.2.3 Non-size
Assortative Monogamy and Evolution of
Protandry 3.2.4 Mating System and Sexual
Pattern in High-Density Populations 3.3
Flatheads (Platycephalidae) 3.4 Seabreams
(Sparidae) 3.5 Plasticity of Sexual
Patterns in the Protandrous Fishes 3.6
Conclusions References Chapter 4:
Protogyny in Fishes 4.1 History of the
Study of Protogynous Sex Change in Fish
Biology 4.2 Mating Systems of Protogynous
Fishes 4.2.1 Harem Polygyny 4.2.1.1
Cohabiting Female-Type Harem 4.2.1.2
Territorial Female-Type Harem 4.2.1.3
Aggregating Female-Type Harem 4.2.2 Male
Territory-Visiting Polygamy 4.2.3 Monogamy
4.2.4 Spawning Aggregation 4.3 Monandry
and Diandry 4.4 Adaptive Significance of
Protogyny Explained by the Size-Advantage
Model 4.5 Social Control of Sex Change:
Broad Occurrence of Takeover Sex Change
4.6 Alternative Examples of Protogynous
Sex Change 4.6.1 Bachelor Sex Change 4.6.2
Harem-Fission Sex Change 4.6.3 Females´
Tactics for Faster Acquisition of Sex
Change Opportunity 4.7 Individual-Level
Process of Takeover Sex Change After Male
Loss 4.8 Future Research Directions 4.9
Conclusions References Chapter 5:
Bidirectional Sex Change in Fishes 5.1 New
Prospects Opened by the Discovery of
Bidirectional Sex Change 5.2 Distribution
of Bidirectional Sex Change Among Teleost
Fishes 5.3 Bidirectional Sex Change
Recorded in Aquaria 5.4 Bidirectional Sex
Change in Monogamous Fish 5.5 Reversed Sex
Change in Haremic Fish 5.5.1 Social
Conditions and Adaptive Significance of
Bidirectional Sex Change in Haremic Fish
5.5.2 Low-Density Hypothesis for Reversed
Sex Change 5.6 Bidirectional Sex Change in
Male-Territory-Visiting (MTV) Polygamy 5.7
Future Research Directions 5.8 Conclusions
References Chapter 6: Database of
Hermaphroditic Fish Species and References
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