31.10.2017: Evgeny DAVYDOV (Barnaul, Russland): The vegetation of the Altai Mountains as a factor determining Lichen distribution, HS 31.11, Institut für Pflanzenwissenschaften, Bereich Syst. Botanik und Geobotanik, Holteigasse 6, 17:00 Uhr.
The Altai is an extensive mountain region situated in central Eurasia and constitutes the highest mountain range in Siberia and North Asia. The highest summits rise above the snow line (2700-2950 m), with the tallest mountain being Mt. Belukha, at 4506 m. The regional climate is severely continental. The Altai is situated largely within the steppe zone. The altitudinal vegetation belts are represented by: shrub steppe, forest-steppe, different types of taiga forest, Betula forests, subalpine meadows with shrubs and herbs, alpine meadows, and mountain tundra. The Altai-Sayan highland has the highest biodiversity among the mountainous countries of North Asia; it is one of 200 priority ecoregions for global conservation. The flora of Altai exceeds 2700 species. At present the number of lichens known from the Altai Mts. exceeds one thousand species. Nevertheless, a considerable portion of the lichen biota is still unrecognized. The aim of the talk is to provide the survey of landscapes and vegetation of Altai Mts in connection with the lichen diversity.