Freshwater diatom abundance in different water bodies from a polygonal tundra landscape near the WWF station Kytalyk at the Berelekh River in the Indigirka lowland (NE Siberia) during summer 2011 ...

• Main Authors: Schirrmeister, Lutz, Herzschuh, Ulrike, Pestryakova, Luidmila A, Wetterich, Sebastian, Bobrov, Anatoly A, Frolova, Larisa A, Ushnitskaya, Lena A, Levina, Sardana N, Schneider, Andrea, Nigamatzyanova, Gulnara R
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: environmental data; freshwater diatoms; freshwater ostracodes; Hydrochemistry; hydrological data; Permafrost; polygonal landscapes; sediment data; tecamoebae; zoobenthos; Zooplankton; Event label; Latitude of event; Longitude of event; Date/Time of event; Sample code/label; Terrain; Polygon type; Amphora libyca; Amphora ovalis; Brachysira brebissonii; Caloneis silicula; Diploneis ovalis; Navicula radiosa; Navicula rhynchocephala; Navicula spp.; Navicula cryptocephala; Neidium affine; Neidium ampliatum; Neidium apiculatum; Neidium bisulcatum; Neidium hitchcockii; Neidium iridis; Neidium perminutum; Neidium productum; Neidium vernale; Nitzschia dissipata; Nitzschia hantzschiana; Nitzschia palea; Nitzschia spp.; Pinnularia brevicostata; Pinnularia interrupta; Pinnularia microstauron; Pinnularia nodosa; Pinnularia spp.; Pinnularia subcapitata; Pinnularia viridis; Rhopalodia gibba; Sellaphora bacillum; Sellaphora pupula; Climate change; permafrost; Tundra; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.946885; https://doi.pangaea.de/10.1594/PANGAEA.946885

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 in the Indigirka lowland in summer 2011 and 2012. Using a multidisciplinary approach, several stages of polygonal systems were studied as modern tundra habitats in the surrounding of the WWF station Kytalyk at the Berelekh River, a tributary of the Indigirka River. 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 air, water and ground temperatures as well as water conductivity, water level and soil moisture and to collect water, diatom, zooplankton, ...