The Swiss List of National Priority Species comprises 3606 species from 21 different groups of organisms, including vertebrates, invertebrates, plants, fungi and lichens. Priorities for conservation have been determined by experts, based on the degree to which the species is threatened and the responsibility Switzerland has at the international level for the particular species. The publication outlines the methodology used and tables show the degree of threat, the responsibility of Switzerland and the need for action for all 3606 priority species.