Stevan J. Arnold is Professor Emeritus, Department of Integrative Biology, Oregon State University, USA. He was made a Fellow of the AAA&S (American Academy of Arts and Sciences) in 2009, and has held the presidency of both the Society for the Study of Evolution (1998) and the American Society of Naturalists (2012). He is one of the top experts in the field and has published large numbers of highly cited academic articles in the realm of quantitative genetics.
""The 22 chapters are broken into very manageable and well-motivated discussions on topics such as multivariate selection and evolution, adaptative landscapes, modularity and performance of functional traits, speciation, coevolution, and peak shifts. Many of these are areas where Arnold hasmade significant contributions."" -- Bruce Walsh, The Quarterly Review of Biology