The book has been coveredn in contact, theren is an ownership signature on the front end paper and is lightly bumped at the head, else clean, solid and unmarked. Monographs in Population Biology No. 32 edited by Simon A. Levin and Henry S Horn. xiv, 375 pages. "Despite its supreme importance and the threat of its global crash, biodiversity remains poorly understood both empirically and theoretically. This ambitious book presents a new, general neutral theory to explain the origin, maintenance, and loss of biodiversity in a biogeographic context. Until now biogeography (the study of the geographic distribution of species) and biodiversity (the study of species richness and relative species abundance) have had largely disjunct intellectual histories. In this book, Stephen Hubbell develops a formal mathematical theory that unifies these two fields. When a speciation process is incorporated into Robert H. MacArthur and Edward O. Wilson's now classical theory of island biogeography, the generalized theory predicts the existence of a universal, dimensionless biodiversity number. In the theory, this fundamental biodiversity number, together with the migration or dispersal rate, completely determines the steady-state distribution of species richness and relative species abundance on local to large geographic spatial scales and short-term to evolutionary time scales. Although neutral, Hubbell's theory is nevertheless able to generate many nonobvious, testable, and remarkably accurate quantitative predictions about biodiversity and biogeography. In many ways Hubbell's theory is the ecological analog to the neutral theory of genetic drift in genetics. The unified neutral theory of biogeography and biodiversity should stimulate research in new theoretical and empirical directions by ecologists, evolutionary biologists, and biogeographers." (back cover) CONTENTS" Preface; Chapter One: MacArthur and Wilson's Radical Theory; Chapter Two: On Current Theories of Relative Species Abundance; Chapter Three: Dynamical Models of the Relative Abundance of Species; Chapter Four: Local Community Dynamics under Ecological Drift; Chapter Five: Metacommunity Dynamics and the Unified Theory; Chapter Six: The Unified Neutral Theory and Dynamical Species-Area Relationships; Chapter Seven: Metapopulations and Biodiversity on the Metacommunity Landscape; Chapter Eight: Speciation, Phylogeny, and the Evolution of Metacommunity Biodiversity. Chapter Nine: Sampling, Parameter Estimation, and the Generality of the Unified TheoryChapter Ten: Reconciling Dispersal-Assembly and Niche-Assembly Theories; Literature Cited; Index.