The views and designations expressed in this publication are those of its authors and do not necessarily repre- sent officially-adopted views of the Ramsar Convention or its Secretariat or of The World Health Organization. All reasonable precautions have been taken by the Ramsar Convention to verify the information contained in this publication. However, the published material is being distributed without warranty of any kind, either expressed or implied. The responsibility for the interpretation and use of the material lies with the reader. In no event shall the Ramsar Convention or the World Health Organization be liable for damages arising from its.