untitled

with material and constructive comments: Sue Briggs, Andrea Byrom, Steve Cork,

Charles Krebs, Graham Nugent, John Parkes, Roger Pech, Laura Prugh, Wendy Ruscoe,

Dolph Schluter, Julian Seddon, Grant Singleton, David Spratt, Eric Spurr, Vernon

Thomas, and Bruce Warburton.

The CSIRO Sustainable Ecosystems Division, Canberra, Australia, and Landcare

Research, Christchurch, New Zealand, were most generous in providing facilities

while preparing this second edition. The librarians in both institutions were most

accommodating in finding material for us. We also thank the Natural Sciences

and Engineering Research Council of Canada for supporting us during the writing.

A.R.E.S. was supported by a Senior Killam Research Fellowship from the Canada

Council.

Our close friend and colleague, Graeme Caughley, died in 1994. In this edition

we have retained the substance and spirit of his scholarship, expanding in the fields

where advances have occurred since the first edition. For this new edition we are

indebted to Anne Sinclair who obtained most of the new reference material, typed

the manuscript, checked it and put it together. Without her it would have taken

much longer.

xii PREFACE

The CD in the back of this book includes an Evaluation Version of Mathcad®

13 Single User Edition, which is reproduced by permission. This software is a fully

functional trial of Mathcad which will expire 120 days from installation. For tech-

nical support, more information about purchasing Mathcad, or upgrading from pre-

vious editions, see http://www.mathcad.com

Mathcad and Mathsoft are registered trademarks of Mathsoft Engineering and

Education, Inc., http://www.mathsoft.com Mathsoft Engineering & Education, Inc.

owns both the Mathcad software program and its documentation. Both the program

and documentation are copyrighted with all rights reserved by Mathsoft. No part of

the program or its documentation may be produced, transmitted, transcribed, stored

in a retrieval system, or translated into any language in any form without the writ-

ten permission of Mathsoft.

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