Forests play a central role in maintaining biodiversity in Switzerland. Since the Forest Report 2005, about half of the forest reserves planned for completion by 2030 have already been established, and the populations of forest birds, large carnivores and wild ungulates have grown. Despite these positive developments, some problem points still remain. Thus open forests and late phases of forest development with old trees and deadwood are rare in the lowlands, and the total number of vulnerable species has not decreased.