INVERTEBRATES AS WEBMASTERS IN ECOSYSTEMS This is an edited volume honouring the contributions of Professor D.A. (Dac) Crossley, Jr to the field of ecosystem science. Invertebrates as Webmasters in Ecosystems Edited by D.C. Coleman and P.F. Hendrix Institute of Ecology University of Georgia Athens, USA CABI Publishing CABI Publishing is a division of CAB International CABI Publishing CABI Publishing CAB International 10 E 40th Street, Wallingford Suite 3203 Oxon OX10 8DE New York, NY 10016 UK USA Tel: +44 (0)1491 832111 Tel: +1 212 481 7018 Fax: +44 (0)1491 833508 Fax: +1 212 686 7993 Email:
[email protected] Email:
[email protected] © CAB International 2000. All rights reserved. No part of this publication may be repro- duced in any form or by any means, electronically, mechanically, by photocopying, recording or otherwise, without the prior permission of the copyright owners. A catalogue record for this book is available from the British Library, London, UK Library of Congress Cataloging-in-Publication Data Invertebrates as webmasters in ecosystems / edited by D.C. Coleman and P.F. Hendrix. p. cm. Includes bibliographical references and index. ISBN 0–85199–394–X (alk. paper) 1. Invertebrates––Ecology. I. Coleman, David C., 1938– . II. Hendrix, Paul F. QL364.4.I58 2000 592.17––dc21 99–41246 CIP ISBN 0 85199 394 X Typeset in 10/12pt Photina by Columns Design Ltd, Reading Printed and bound in the UK by Biddles Ltd, Guildford and King’s Lynn. Contents Contributors vii Preface ix Part I. Webmaster Functions in Ecosystems 1 1 Food Web Functioning and Ecosystem Processes: Problems and Perceptions of Scaling 3 J.M.