Freshwater ostracod 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; Sampling date; Candona muelleri-jacutica; Cyclocypris ovum; Cypria exsculpta; Fabaeformiscandona groenlandica; Fabaeformiscandona harmsworthi; Fabaeformiscandona cf. krochini; Fabaeformiscandona pedata; Fabaeformiscandona protzi; Fabaeformiscandona sp.; Pseudocandona sp.; Candoninae, juvenile; Ostracoda; Number of taxa; Terrain; Polygon type; Sampling lake; Stereo Microscope Zeiss, Axiostar; Field observation; RU-Land_2011_Kytalyk; AWI Arctic Land Expedition; Permafrost Research AWI_Perma; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; Polygons in tundra wetlands state and dynamics under climate variability in Polar Regions POLYGON; Climate change; permafrost; Tundra; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.946870; https://doi.pangaea.de/10.1594/PANGAEA.946870

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, ...