"Caro cleans up terminology and infrequently tested hypotheses to produce an insightful account of core ideas in conservation. Practitioners will benefit from his conceptual clarity when planning their conservation actions."
— Stuart Pimm, Doris Duke Professor of Conservation Ecology, Duke University
"... In this book, Tim Caro ably compiles and dissects in one compact source the large body of literature about surrogate species in conservation biology. ... The book is well written and richly referenced, with 65 pages of citations; this section alone renders the book a valuable addition to one's conservation library. The author deftly employs this vast literature in well-developed examples in the text, tables, and figures. ... Conservation by Proxy offers an invaluable contribution to the literature of conservation biology. I highly recommend it for academics or students involved with surrogates, as well as anyone grappling with biodiversity conservation or quantifying effects of environmental change. Caro offers not only a timely, thorough journey through the realm of surrogates, but also an effective and less costly alternative to these proxies."
— Ecology
"Conservation biology has emerged over the past twenty-five years as an important new subdiscipline, central to the management of the natural world and its nonvoting species. Tim Caro's comprehensive review examines the successes and shortcomings of difference scientific, economic, and aesthetic approaches to protecting endangered species and their habitats. Conservation by Proxy uses an elegant blend of quantitative comparisons and insightful examples to illustrate what has worked and what has failed. It is essential reading for anyone concerned with the conservation of biodiversity in the critical next few decades."
— Andy Dobson, Professor, Department of Ecology and Evolutionary Biology, Princeton University
"Tim Caro brings order to a long-neglected area of conservation with remarkably lucid logic."
— Hugh Possingham, Professor of Ecology and Mathematics, University of Queensland, Australia