Fossil cladoceran record from Lake Beloe in the Altai region (Western Siberia) during the late Holocene
DOI:
https://doi.org/10.31951/2658-3518-2024-A-4-346Keywords:
paleoecology, Altai region, subfossil cladoceran communityAbstract
An analysis of subfossil Cladocera in a 193-cm sediment core from Lake Beloe (Altai region) was conducted to trace the history of limnological conditions in the lake over the past 4600 years. Currently, a total of 34 Cladocera taxa were identified in the taphocenosis. The greatest cladoceran species richness was observed among littoral forms of Cladocera, reflecting the presence of shallow areas overgrown with macrophytes. The highest concentration of cladoceran remains was observed in the lower horizons of the core (150-191 cm, 3600-4600 cal yr BP). In this zone, the highest values of Hill indices are recorded, indicating high taxonomic diversity in the community. At a depth of 141 cm (3500 cal yr BP), significant changes in community structure occur, with Chydorus cf. sphaericus beginning to dominate. Taxonomic diversity of Cladocera noticeably increases in the upper part of the core.
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This work is distributed under the Creative Commons Attribution-NonCommercial 4.0 International License.