Contents -- Preface -- Acknowledgments -- Chapter 1 The Nature of Ecological Genetics -- Chapter 2 Adaptation -- Adaptive Coloration -- Mimicry in Plants -- Other Adaptations -- Chapter 3 Biological Variation -- Methods of Detection -- Variation in Drosophila -- Biochemical Variation -- Castle-Hardy-Weinberg Equilibrium -- Chapter 4 Mutation -- Mutations in Population -- Mutation Rates -- Chapter 5 Natural Selection -- Gametic and Zygotic Selection -- Mutation and Selection -- Transient Polymorphism -- The Origin of Dominance -- Mimicry -- Genetic Assimilation -- Genetic Homeostasis -- Chapter 6 Balanced Polymorphism -- Heterozygous Advantage -- Frequency-Dependent Selection -- Compulsory Cross-Fertilization -- Opposing Selection Pressures -- Meiotic Drive -- The Sex Ratio -- Heterogeneity in Time or Space -- Chapter 7 Polymorphism and Population Dynamics -- Population Number -- Population Growth -- Population Fluctuations -- Predation -- Age Structure -- Regulation of Population Size -- Density-Related Selection -- Chapter 8 Genetic Loads -- Mutational Load -- Segregational Load -- Substitional Load -- Chapter 9 Chromosomal Polymorphism -- Polyploidy -- Aneuploidy -- Chromosomal Rearrangements -- Inversion Polymorphism -- Coadaptation -- Inversion Polymorphism and the Environment -- Translocation Heterozygosity -- Chapter 10 Random Genetic Drift -- Rate of Decrease in Heterozygosity -- Effective Population Size -- Evolutionary Significance -- Chapter 11 Migration and Gene Flow -- Population Distribution -- The Ecological Niche -- Population Structure -- Dispersion and Dispersal -- The Migration Coefficient -- Joint Effects -- Gene Flow -- Hybridization -- Introgressive Hybridization -- Polyploidy -- Chapter 12 The Origin of Races -- Geographical Variation -- Quantitative Traits -- The Ecotype Concept -- Clines -- Ecogeographical Rules.

Quantitative Inheritance -- Heterosis -- Heritability -- Race -- Biochemical Geographic Variation -- Chapter 13 Neutralist vs. Selectionist -- Classical and Balance Theories -- The Neutralist Theory -- Variations in Protein Polymorphism -- The Concept of Neutrality -- The Neutral Mutation-Random Drift Theory -- The Nature of Neutral Mutations -- Variation in Different Populations -- Variation in Different Species -- Tests for Selection at Polymorphic Enzyme Loci -- The Mutation-Equilibrium Theory -- Heterogeneity within Electromorphs -- Current Trends -- Chapter 14 The Species Concept -- Species Definitions -- Isolating Mechanisms -- The Origin of Reproductive Isolation -- Challenges to the Biological Species Concept -- Chapter 15 The Origin of Species -- Allopatric Speciation -- Patterns of Evolution -- The Evolution of Genetic Systems -- Saltational Evolution -- Sympatric Speciation -- Chapter 16 Competition -- Definitions -- Competitive Displacement -- Experiments -- Lotka-Volterra Equations -- L'Envoi -- References -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W.