× 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 Type du document Décision Numéro de référence XI.(b).38 Date Oct 22, 1979 SourceUNEP, InforMEA Statut active Sujet Espèces sauvages et écosystèmes Traité Convention concernant la protection du patrimoine mondial, culturel et naturel (Nov 23, 1972) Réunion 3e session du Comité Site web whc.unesco.org Résumé The Committee decided to instruct IUCN to use great caution in the application of criterion (iv) when it was the sole criterion for recommending sites for the World Heritage List. The sites nominated under this criterion should be habitats where "significant populations" or "concentrations of populations" of rare or endangered species of plants or animals survive, that is, sites representing in some way "superlative situations".