Oxford University Press Oxford New York Athens Auckland Bangkok Bogotá Buenos Aires Calcutta Cape Town Chennai Dar es Salaam Delhi Florence Hong Kong Istanbul Karachi Kuala Lumpur Madrid Melbourne Mexico City Mumbai Nairobi Paris São Paulo Singapore Taipei Tokyo Toronto Warsaw and associated companies in Berlin Ibadan Copyright © 1998 by Oxford University Press, Inc. Published by Oxford University Press, Inc. 198 Madison Avenue, New York, New York 100 16 Oxford is a registered trademark of Oxford University Press All rights reserved. no part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of Oxford University Press. Library of Congress Cataloging-in-Publication Data Behavioral ecology and conservation biology / edited by Tim Caro. p. cm. Includes bibliographical references and index. ISBN 0-19-510489-7; 0-19-510490-0 (pbk.) 1. Animal behavior. 2. Animal ecology. 3. Conservation biology. 1. Caro. T M. ( Timothy M.) QL751.B3425 1998 591.5 -- dc21 97-18005 9 8 7 6 5 4 3 2 1 Printed in the United States of America on recycled acid-free paper -iv- |