The present volume constitutes the proceedings of the~ymposium: "Measur- ing Selection in Natural Populations", held in memory of late professor Ove Frydenberg. The Symposium took place in Sandbjerg Manor House in Southern Jutland May 10-14, 1976. The purpose of the symposium was to reflect contemporary research on the mechanisms of biological evolu- tion. The arrangement of the symposium was possible only with the assis- tance and work of many other people. Professor Ole Barndorff-Nielsen took an active part in the planning and arrangement of the symposium. Our gratitude is also due to Ellen Christensen, Jens Ole Frier, Arno Jensen, Preben Jensen and Anne Nissen, all of whom took care of the practical arrangements at the symposium. The publication was prepared with the assistance of Arno Jensen, Preben Jensen, Verner Blak Nielsen and Kirsten Svendsen. The Symposium was financed by grants from The Danish Natural Science Research Council, The Danish Atomic Energy Commission and The University of Aarhus. Aarhus, June 1977 Freddy B. Christiansen Tom M. Fenchel LIST OF PARTICIPANTS AND CONTRIBUTORS ALLARD, R.W.: Department of Genetics, University of California, Davis, California 95616, USA. ANDERSEN, A. HOLST: Department of Theoretical Statistics, Institute of Mathematics, University of Aarhus, Ny Munkegade, DK-SOOO Aarhus C, Denmark. AYALA, F.J.: Department of Genetics, University of California, Davis, California 95616, USA. BARKER, J.S.F.: Department of Animal Husbandry, University of Sydney, Sydney 2006, New South Wales, Australia.

This textbook provides an authoritative introduction to both classical and coalescent approaches to population genetics. Written for graduate students and advanced undergraduates by one of the world's leading authorities in the field, the book focuses on the theoretical background of population genetics, while emphasizing the close interplay between theory and empiricism. Traditional topics such as genetic and phenotypic variation, mutation, migration, and linkage are covered and advanced by contemporary coalescent theory, which describes the genealogy of genes in a population, ultimately connecting them to a single common ancestor. Effects of selection, particularly genomic effects, are discussed with reference to molecular genetic variation. The book is designed for students of population genetics, bioinformatics, evolutionary biology, molecular evolution, and theoretical biology--as well as biologists, molecular biologists, breeders, biomathematicians, and biostatisticians. * Contains up-to-date treatment of key areas in classical and modern theoretical population genetics * Provides in-depth coverage of coalescent theory * Discusses genomic effects of selection * Gives examples from empirical population genetics * Incorporates figures, diagrams, and boxed features throughout * Includes end-of-chapter exercises * Speaks to a wide range of students in biology, bioinformatics, and biostatistics

This textbook provides an authoritative introduction to both classical and coalescent approaches to population genetics. Written for graduate students and advanced undergraduates by one of the world's leading authorities in the field, the book focuses on the theoretical background of population genetics, while emphasizing the close interplay between theory and empiricism. Traditional topics such as genetic and phenotypic variation, mutation, migration, and linkage are covered and advanced by contemporary coalescent theory, which describes the genealogy of genes in a population, ultimately connecting them to a single common ancestor. Effects of selection, particularly genomic effects, are discussed with reference to molecular genetic variation. The book is designed for students of population genetics, bioinformatics, evolutionary biology, molecular evolution, and theoretical biology--as well as biologists, molecular biologists, breeders, biomathematicians, and biostatisticians. * Contains up-to-date treatment of key areas in classical and modern theoretical population genetics * Provides in-depth coverage of coalescent theory * Discusses genomic effects of selection * Gives examples from empirical population genetics * Incorporates figures, diagrams, and boxed features throughout * Includes end-of-chapter exercises * Speaks to a wide range of students in biology, bioinformatics, and biostatistics