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All biologists worth their salt know that each and every form of life has the capacity to multiply and increase at a truly astonishing, indeed a frightening rate. It is easy to do calculations demonstrating the truth of this. For example, assuming (in all cases) that all descendants survive, one bacterium dividing every 20 minutes would produce approximately 300 grams of bacteria in 24 hours; 150 million tonnes in a month. A female housefly, laying a minimum of 600 eggs in her lifetime, would, at the end of a summer of some eight to 10 generations, have 1.9 × 1020 descendants – or roughly 200 million cubic metres. | WHY DOES THE WORLD STAY GREEN Nutrition and survival of plant-eaters TCR White WHY DOES THE WORLD STAY GREEN Nutrition and survival of plant-eaters TCR White PUBLISHING TCR White 2005 All rights reserved. Except under the conditions described in the Australian Copyright Act 1968 and subsequent amendments 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 duplicating or otherwise without the prior permission of the copyright owner. Contact CSIRO PUBLISHING for all permission requests. National Library of Australia Cataloguing-in-Publication entry White T. C. R. Thomas C. R. . Why does the world stay green nutrition and survival of plant-eaters. Bibliography. Includes index. ISBN 0 643 09158 0. 1. Population biology. 2. Animal-plant relationships. 3. Nitrogen in animal nutrition. I. Title. 591.53 Available from CSIRO PUBLISHING 150 Oxford Street PO Box 1139 Collingwood VIC 3066 Australia Telephone 61 3 9662 7666 Local call 1300 788 000 Australia only Fax 61 3 9662 7555 Email publishing.sales@csiro .au Web site www.publish.csiro.au Cover photo by istockphoto Set in 10.5 13 Minion Cover and text design by James Kelly Typeset by J M Typesetting Printed in Australia by Ligare The views expressed in this work are the author s own and do not necessarily reflect those of the .
