"I have great regard for this book, which addresses a new and highly important question: are some species expendable? It is a book that, given the complexity of the subject, necessarily speaks with many voices. It draws together an outstanding team of scholars and is well written and unusually well organized and synthetic."--G. David Tilman, Distinguished McKnight University Professor, University of Minnesota
"This book deals with issues at the cutting edge of contemporary ecology and has no direct competitors. The editors have succeeded in assembling an impressive group of authors--from major established figures to the best young guns--to produce an interesting and frequently provocative series of chapters."--H. Charles J. Godfray, Director, NERC Centre for Population Biology