Freshwater ostracods (Crustacea) and environmental variability of polygon ponds in the tundra of the Indigirka Lowland, north-east Siberia

Polar research

Sebastian Wetterich¹  Lyudmila A. Pestryakova²  Andrea Schneider³  Ulrike Herzschuh⁵  Lutz Schirrmeister⁵  Hanno Meyer⁵ 

[1] Department of Physical Geography and Quaternary Geology, Stockholm University, SE-106 91 Stockholm, Sweden;Institute of Earth and Environmental Science Potsdam University of Potsdam, Karl-Liebknecht-Str. 24-25, DE-14476 Potsdam, Germany;Centre for Arctic Gas Hydrate, Environment and Climate, Department of Geology, University of Tromsø, Dramsveien 201, NO-9037 Tromsø, Norway;Department for Geography and Biology North Eastern Federal University Yakutsk, ul. Belinskogo 58, RU-677000 Yakutsk, RussiaCorrespondence;Department of Periglacial Research Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, DE-14473 Potsdam, Germany

关键词: Arctic limnology;    permafrost;    patterned ground;    ecological indication;    freshwater ostracods;   

DOI  :  10.3402/polar.v35.25225

学科分类：自然科学（综合）

来源: Co-Action Publishing

【 摘 要 】

Freshwater ostracods (Crustacea, Ostracoda) are valuable biological indicators. In Arctic environments, their habitat conditions are barely known and the abundance and diversity of ostracods is documented only in scattered records with incomplete ecological characterization. To determine the taxonomic range of ostracod assemblages and their habitat conditions in polygon ponds in the Indigirka Lowland, north-east Siberia, we collected more than 100 living ostracod individuals per site with a plankton net (mesh size 65 µm) and an exhaustor system from 27 water bodies and studied them in the context of substrate and hydrochemical data. During the summer of 2011, a single pond site and its ostracod population was selected for special study. This first record of the ostracod fauna in the Indigirka Lowland comprises eight species and three additional taxa. Fabaeformiscandona krochini and F. groenlandica were documented for the first time in continental Siberia. Repeated sampling of a low-centre polygon pond yie...

【 授权许可】

CC BY-NC