× Information on this section of ECOLEX comes from the InforMEA Portal which compiled information from MEA Secretariats with the support of the European Union. The accuracy of the information displayed is the responsibility of the originating data source. In case of discrepancy the information as displayed on the respective MEA website prevails. Amendments to the criteria for the inclusion of natural properties in the World Heritage List and guidelines for the evaluation of nominations by IUCN Document type Decision Reference number XI.39 Date Oct 22, 1979 SourceUNEP, InforMEA Status Active Subject Wild species & ecosystems Treaty Convention concerning the Protection of the World Cultural and Natural Heritage (Nov 23, 1972) Meeting 3e session du Comité Website whc.unesco.org Abstract The Committee considered the complex issues concerning sites occupied by migratory species on a seasonal basis and decided to add to paragraph 11 on integrity in the "Operational Guidelines" a new sub-paragraph (v) as follows: "In cases of migratory species, integrity will require critical areas necessary for the survival of the species to be included in the nomination. States which are parties to the Convention are requested to seek the co-operation of other States which contain seasonable sites for populations of World Heritage species so as to ensure that these species are protected throughout their full life cycle. Agreements of this nature should be noted in the nomination".