Diatom anbundances of polygon tundra in the Kolyma Delta near Pokhodsk (NE Siberia) sampled in 2012 ...

• Main Authors: Schirrmeister, Lutz, Herzschuh, Ulrike, Pestryakova, Luidmila A, Wetterich, Sebastian, Frolova, Larisa A, Ushnitskaya, Lena A
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: air temperature; electrical conductivity; environmental data; ground temperature; hydrochemical parameters; hydrological data; sediment analysis; Soil Moisture; water temperature; Zooplankton; Event label; Date/Time of event; Latitude of event; Longitude of event; Site; Achnanthes ingratiformis; Achnanthes spp.; Achnanthidium minutissimum; Achnanthidium petersenii; Amphora libyca; Aneumastus tusculus; Aulacoseira alpigena; Chamaepinnularia hassiaca; Craticula halophila; Craticula riparia; Cymbella affinis; Cymbella arctica; Cymbella aspera; Cymbella cistula; Cymbella helvetica; Cymbella tumida; Cymbopleura angustata; Cymbopleura cuspidata; Cymbopleura subcuspidata; Cymbopleura tynnii; Denticula elegans; Diatoma tenuis; Diatoma vulgaris; Diploneis parma; Encyonema alpinum; Encyonema caespitosum; Encyonema elginense; Encyonema gracile; Encyonema hebridicum; Encyonema latens; Encyonema mesianum; Encyonema minutum; Encyonema norvegicum; Encyonema obscurum; Encyonema paucistriatum; Climate change; permafrost; Tundra; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.955250; https://doi.pangaea.de/10.1594/PANGAEA.955250

Patterned ground of the polygonal tundra yields sensitive indicators of environmental and climate change. Polygon ponds, mires and cryosoils are typical components of Arctic Siberian wetlands underlain by permafrost. Field studies of recent environmental dynamics were carried out within the frame of the joint German-Russian DFG-RFBR project Polygons in tundra wetlands: state and dynamics under climate variability in Polar Regions (POLYGON) field studies were carried out in the Kolyma Delta in 2012 around the small fishing settlement Pokhodsk in summer 2012 and 2013. Using a multidisciplinary approach, several stages of polygonal systems were studied as modern tundra habitats . The floral and faunal associations of the polygonal tundra landscape were described. Ecological, hydrological, meteorological, limnological and cryological features were analyzed in order to evaluate modern environmental conditions and their essential controlling parameters. A monitoring program was carried out to measure changes of ...