Table of contents : Contents......Page 8 Contributors......Page 10 1. Quantitative Genetic Variation in Populations of Darwin's Finches......Page 14 2. Adaptation, Natural Selection, and Optimal Life-History Allocation in the Face of Genetically Based Trade-offs......Page 52 3. Natural Selection and the Evolution of Adaptive Genetic Variation in Northern Freshwater Fishes......Page 76 4. Understanding Natural Selection on Traits That Are Influenced by Environmental Conditions......Page 106 5. Adaptive Evolution and Neutral Variation in a Wild Leafminer Metapopulation......Page 127 6. Reaching New Adaptive Peaks: Evolution of Alternative Bill Forms in an African Finch......Page 150 7. Geographic Variation in Flower Size in Wild Radish: The Potential Role of Pollinators in Population Differentiation......Page 168 8. Detecting Inheritance with Inferred Relatedness in Nature......Page 198 9. Laboratory and Field Heritabilities: Some Lessons from Drosophila......Page 211 10. Intra- and Interpopulation Genetic Variation: Explaining the Past and Predicting the Future......Page 230 11. Adaptive Genetic Variation in the Wild......Page 262 D......Page 272 G......Page 273 H......Page 274 P......Page 275 Y......Page 276