Roger Butlin is Professor of Evolutionary Biology, Animal and Plant Sciences, at the University of Sheffield. He has held a prestigious Royal Society Research Fellowship at the University of Cardiff and his work has been recognized by honorary fellowships at the Natural History Museum, Zoological Society of London and Royal Belgian Academy of Natural Sciences.

Jon Bridle is a Lecturer in Biology, School of Biological Sciences, at the University of Bristol. Since completing his PhD in Evolutionary Genetics in 1998, he has conducted postdoctoral research in quantitative genetics and evolutionary biology at UCL, University of Cardiff, and Universidad Autonoma de Madrid. He was awarded a fellowship at the Zoological Society of London in 2002.

Dolph Schluter is Professor and Canada Research Chair, Biodiversity Research Centre and Zoology Department, at the University of British Columbia. He is a former President of the Society for the Study of Evolution and recipient of the Sewall Wright Award from the American Society of Naturalists. He is a Fellow of the Royal Society of London and of Canada.

Bringing together the viewpoints of leading ecologists concerned with the processes that generate patterns of diversity, and evolutionary biologists who focus on mechanisms of speciation, this book opens up discussion in order to broaden understanding of how speciation affects patterns of biological diversity, especially the uneven distribution of diversity across time, space and taxa studied by macroecologists. The contributors discuss questions such as: Are species equivalent units, providing meaningful measures of diversity? To what extent do mechanisms of speciation affect the functional nature and distribution of species diversity? How can speciation rates be measured using molecular phylogenies or data from the fossil record? What are the factors that explain variation in rates? Written for graduate students and academic researchers, the book promotes a more complete understanding of the interaction between mechanisms and rates of speciation and these patterns in biological diversity.