Biological Letters is an international journal publishing papers of all biological areas. The journal was formerly published as Bulletin de la Societe des Amis des Sciences et des Lettres de Poznań, Serie D Sciences Biologiques (Vol. 1-30 of 1960-93) and as Biological Bulletin of Poznań (Vol. 31-38 of 1994-2001).

Biological Letters is published by the Poznań Society for the Advancement of the Arts and Sciences & Adam Mickiewicz University (Faculty of Biology).

Copyright and Reproduction.
Authors may make copies of their own papers from this journal without seeking permission from the publisher. However copies must not be sold.
Any individual may make a single paper copy using photocopying or printing PDF available on-line. The copy is used solely for the purpose of private study or research.
For all other matters relating to the reproduction, storage or transmission of any part of this publication prior permission is required from the publisher.
(c) 2003 All rights reserved.

For hard copies distribution contact Jerzy Adler.

ISSN 1644-7700 (Print Edition) & 1734-7467 (Online Edition)