This publication has been prepared by IUCN (International Union for Conservation of Nature). The designation of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of the European Commission or IUCN concerning the legal status of any country, territory, or area, or of its authorities, or  concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily reflect those of the European Commission or IUCN.