Insect Herbivory

Other titles in this series Island Ecology Plant-Atmosphere Relations ModeHing Vegetation Dynamics AnimaI Population Dynamics M. Gorman John Grace John N.R. Jeffers John Miles R. Moss, A. Watson and J.OHason Outline Editors George M. Dunnet Regius Professor of Natural His/Ory, University of Aberdeen Charles H. Gimingham Professor of Botany. University of Aberdeen Editors' Foreword 80th in its theoretical and applied aspects, ecology is developing rapidly. In part because it offers a relatively newand fresh approach to biological enquiry, but It also stems from the revolution in public attitudes towards the quality of the human environment and the conservation of nature. There are today more professional ecologists than ever before, and the number of students seeking courses in ecology remains high. In schools as weil as universities the teaching of ecology is now widely aceepted as an essential component of biological education, but it is only within the past quarter ofa centurythat this has come about. In the same period, the journaIs devoted to publication of ecological research have expanded in number and size, and books on aspects of ecology appear in ever-increasing numbers. These are indications of a healthy and vigorous condition, which is satisfactory not only in regard to the progress of biologieal science but also because of the vita I importance of ecological understanding to the well-being of man. However, such rapid advanees bring their probIems. The subject develops so rapidly in scope, depth and relevanee that textbooks, or parts of them, soon become out-of-date or inappropriate for particular courses. The very width of the front across which the ecological approach is being applied to biological and environmental questions introduees diffieulties: every teacher handIes .his subject in a different way and no two courses are identical in content. This diversity, though stimulating and profitable, has the effect that no single text-book is likely to satisfy fully the needs of the student attending a course in eeology. Very often extracts from a wide range ofbooks must be consulted, and while this may do no harm it is time-eonsuming and expensive. The present series has been designed to offer quite a large number ofrelatively small booklets, each on a restricted topie of fundamental importanee which is likely to constitute a self-contained component of more comprehensive courses. A selection can then be made, at reasonable cost, of texts appropriate to particular courses or the interests of the reader. Each is written by an acknowledged expert in the subject, and is intended to offer an up-to-date, concise summary which will be ofvalue to those engaged in teaching, research or applied ecology as weil as to students. Studies in Ecology Inseet Herbivory I.D. HODKINSON and M.K. HUGHES Department of Biology Liverpool Polytechnic CHAPMAN AND HALL LONDON NEW YORK First published 1982 by Chapman and Hall Ltd 11 New Fetter Lane, London EC4P 4EE Published in the USA by Chapman and Hall 733 Third Avenue, New York NY 10017 © 1982 I.D. Hodkinson and M.K. Hughes l.W. Arrowsmith Ltd, Bristol ISBN-13: 978-0-412-23870-3 This paperback edition is sold subject to the condition that it shalI not. by way of trade or otherwise, be lent, resold, hired out or otherwise circulated without the publisher's prior consent in any form of binding or cover other than that in which it is published and without a similar condition induding this condition being imposed on the subsequent purchaser. All rights reserved. No part of this book may be reprinted, or reproduced or utilized in any form or by any electronic, mechanical or other means, now known or hereafter invented, induding photocopying and recording, or in any information storage and retrieval system, without permission