Ecology and Evolution of the Freshwater Mussels Unionoida

Unionoida (naiads) are characterized by larvae which have to pass through a parasitic stage on a host fish. Some of these host-parasite systems are unique, since the generation time of the parasite exceeds that of its host by a factor of ten. There is tre

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Edited by M . M . Caldwell, Logan, USA G. Heldmaier, Marburg, Germany O.L. Lange, Würzburg, Germany H . A. Mooney, Stanford, USA E.-D. Schulze, Jend, Germany U. Sommer, Kiel, Germany

Ecological Studies Volumes published since 1994 are listed at the end of this book.

Springer-Verlag Berlin Heidelberg GmbH

G. Bauer K. Wächtler (Eds.)

Ecolog y and Evolutio n of th e Freshwate r Mussel s Unionoid a Wit h 156 Figures and 39 Tables

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Springer

Professor Dr. Gerhard Bauer Universität Freiburg Institut für Biologie I Hauptstr. 1 79104 Freiburg Germany Professor Dr. Klaus Wächtler Institut für Zoologie Tierärztliche Hochschule Hannover Bünteweg 17 30559 Hannover Germany

ISSN 0070-8356 ISBN 978-3-642-63140-5 Library of Congress Cataloging-in-Publication Data Ecology and evolution of the freshwater mussels Unionoida / G. Bauer, K. Wächtler (eds.). p. cm. - (Ecological studies; v. 145) Includes bibliographical references (p. ••). ISBN 978-3-642-63140-5 ISBN 978-3-642-56869-5 (eBook) DOI 10.1007/978-3-642-56869-5 1. Unionoida - Ecology. 2. Unionoida - Evolution. I. Bauer, G. (Gerhard), 1953 - II. Wächtler, K. (Klaus), 1938 - III. Series. QL430.6.E36 2000 594'.4 - dc21 00-044062 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9,1965, in its current version, and permissions for use must always be obtained from Springer-Verlag. Violations are liable for prosecution under the German Copyright Law. © Springer-Verlag Berlin Heidelberg 2001 Originally published by Springer-Verlag Berlin Heidelberg New York in 2001 Softcover reprint of the hardcover 1st edition 2001 The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Production: PRO EDIT GmbH, Heidelberg, Germany Cover design: design & production GmbH, Heidelberg, Germany Typesetting: Best-set Typesetter Ltd., Hong Kong Printed on acid free paper

SPIN 10860533

31/3111/Di

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Preface

All those who think that bivalves are boring are in the best company. Karl von Frisch is reported to have turned the pages more quickly in texts where bivalves were treated because, according to him, they literally lack any behaviour. The fact that they can filtrate huge amounts of water, burrow into the sediment, actively swim, drill holes into rocks and boats or detect shadows with the aid of pretty blue eyes located on the rim of their mantle obviously left v. Frisch unimpressed. Why, then, a book on the large freshwater mussels (Naiads or Unionoida), which on first sight are much less spectacular than the