Population Genetics

  1. Natural Selection
    1. Fitness Concepts
      1. Absolute Fitness
        1. Relative Fitness
          1. Selection Coefficient
            1. Fitness Components
              1. Survival
                1. Mating Success
                  1. Fecundity
                2. Selection Models
                  1. Directional Selection
                    1. Favoring One Extreme
                      1. Allele Frequency Changes
                        1. Response Predictions
                        2. Stabilizing Selection
                          1. Favoring Intermediate Phenotypes
                            1. Reducing Variation
                              1. Maintenance of Status Quo
                              2. Disruptive Selection
                                1. Favoring Extremes
                                  1. Increasing Variation
                                    1. Potential for Speciation
                                  2. Balancing Selection
                                    1. Heterozygote Advantage
                                      1. Overdominance
                                        1. Maintenance of Polymorphism
                                          1. Classic Examples
                                          2. Frequency-Dependent Selection
                                            1. Negative Frequency Dependence
                                              1. Positive Frequency Dependence
                                                1. Rare Advantage
                                                2. Environmental Heterogeneity
                                                  1. Spatial Variation
                                                    1. Temporal Variation
                                                  2. Selection Intensity
                                                    1. Weak Selection
                                                      1. Strong Selection
                                                        1. Selection Differentials
                                                          1. Heritability Effects
                                                          2. Interaction with Other Forces
                                                            1. Selection-Drift Balance
                                                              1. Selection-Mutation Balance
                                                                1. Selection-Migration Balance

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                                                              5. Genetic Drift

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                                                              7. Gene Flow and Migration