Biogeographic status of the steppe plains and foothills of the northern and western Caspian lowlandстатья
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Дата последнего поиска статьи во внешних источниках: 22 декабря 2021 г.
Аннотация:The discussion focuses on the zonal nature of the Caspian steppe and the status of thelocal biota, which in its spatial-temporal organization and regional succession system haspreserved the pool of biodiversity of dry-steppe and desert complexes. Each of them representsa set of ancient systematic groups of organisms that migrated here along both the Eastern(Turan) and Western (Caucasus, Mediterranean) coasts of the Caspian Sea, forming "young"lowland ecosystems. There is a weak significance in the Genesis of the biota of the xerophilicfoothills of the Eastern Caucasus (Daghestan) and the southern Urals, which, apparently, onlyat the early stages of formation during periods of major sea transgressions served as refugia.The phylocenogenetically determined polyclimax and the predominance of pasqual andclimatogenic subclimaxes in the region are manifested due to constant impact of cyclical shortterm (hundreds of years) destabilizing factors.