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Chief Editor: Thomas Pawlick
Acting Associate Editor: Peggy Polk
Art Editor: Christian Besemer
Copy Editors: Dominique Hoeltegen, Medhat Makar, Enrique Yeves
Editorial Assistant: Laure Calderan
DTP Assistant: Emelyn Alazard
Managerial Assistant: Isabella Moretti

Collaborating on this issue: Lorenza Manzi

Editorial Policy Board: P.J. Mahler (Chairman), E.P. Cunningham, M. de Francisco, B. Huddleston, K. Killingsworth, J.P. Lanly, R. Lydiker, T. Pawlick (ex officio), M. Randriamamonjy, R.L. Welcomme, M.S. Zehni, M. Zjalic.

Published bi-monthly by the Food and Agriculture Organization of the United Nations. ISSN 0009-0379. The opinions expressed by the contributing authors are not necessarily those of FAO or Ceres. The designations employed and the presentation do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area of its authorities, or concerning the delimitation of its frontiers or boundaries. Individual articles and photographs not copyrighted may be reprinted provided the credit line reads: “Reprinted from Ceres, the FAO Review”, and two voucher copies are sent two the Editor. Unsolicited manuscripts and art work not accompanied by return postage will not be returned.

Editorial Offices: FAO, Via delle Terme di Caracalla, 00100 Rome, Italy.
Tel.: (6) 57974094
Fax.: (6) 57973152

ISSN 0009-0379.