Fossil cladoceran record from Lake Beloe in the Altai region (Western Siberia) during the late Holocene

Authors

  • Frolova L.A. 1, 2
  • Nigmatullin N.M. 1
  • Ibragimova A.G. 1
  • Li H.C. 3
  • Nurgaliev D.K. 1
    • 1 Kazan Federal University, Kremlyovskaya Str., 4/5, Kazan, 420008, Russia
    2 Institute of archaeology and ethnography of the Russian Academy of Sciences, Acad. Lavrentiev Avenue 17, Novosibirsk, 630090, Russia
    3 Department of Geosciences, National Taiwan University, Taipei, 10617, Taiwan, POC

DOI:

https://doi.org/10.31951/2658-3518-2024-A-4-346

Keywords:

paleoecology, Altai region, subfossil cladoceran community

Abstract

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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Published

2024-08-26

Issue

2024: №4 (SI:Paleo2024)

Section

Articles

License

Copyright (c) 2024 Limnology and Freshwater Biology

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License
This work is distributed under the Creative Commons Attribution-NonCommercial 4.0 International License.