IUCN-Med is pleased to announce that the IUCN Red List Categories and Criteria version 3.1 has now been published in Arabic, with the support of the Spanish Agency for International Cooperation and Development (AECID), and the objective of promoting red listing in Arabic countries at national and regional levels. The “Guidelines for Application of IUCN Red List Criteria at Regional levels” also in Arabic will be published later during the year.
There are nine categories in the IUCN Red List system, from species that are not threatened (Least Concern) to species already extinct (Extinct). At regional level, two additional categories are used (Extinct in the region and Not Applicable, for example for non-native species). The threatened categories (Vulnerable, Endangered and Critically Endangered) are based on five scientific criteria that evaluate the risk of extinction of the species based on biological factors such as: rate of decline, population size, area of geographic distribution, degree of population, and distribution fragmentation. These criteria can be applied to all species (except micro-organisms) in all regions and all countries.
The IUCN Red List Categories and Criteria have undergone an extensive review in recent years. This review has produced a clearer, more open and easy-to-use system. The revised Categories and Criteria (IUCN Red List Categories and Criteria version 3.1) were adopted by IUCN Council in February 2000.
All new assessments and reassessments on the IUCN Red List use the 2001 IUCN Red List Categories and Criteria version 3.1.