Recent shift in biological communities: A case study from the Eastern European Russian Arctic (Bol`shezemelskaya Tundra)

Recent shift in biological communities: A case study from the Eastern European Russian Arctic (Bol`shezemelskaya Tundra)

Recent Arctic warming has major influences on biological communities, especially in freshwater environments. There is substantial evidence that lake ecosystems in the Canadian Arctic and Fennoscandia are undergoing changes that have been linked to human-induced climate warming during the past 150–10...

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Bibliographic Details
Published in:Polar biology Vol. 44; no. 6; pp. 1107 - 1125
Main Authors: Nazarova, Larisa B., Frolova, Larisa A., Palagushkina, Olga V., Rudaya, Natalia A., Syrykh, Lyudmila S., Grekov, Ivan M., Solovieva, Nadia, Loskutova, Olga A.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-06-2021
Springer
Springer Nature B.V
Subjects:
Air temperature
Analysis
Aquatic ecosystems
Biomedical and Life Sciences
Case studies
Climate change
Community composition
Diatoms
Ecology
Ecosystems
Extreme weather
Fresh water
Freshwater
Freshwater environments
Global warming
Human influences
Ice ages
Inland water environment
Lakes
Life Sciences
Man-induced effects
Meteorological data
Microbiology
Oceanography
Original Paper
Palynology
Plant Sciences
Species composition
Taxonomy
Tundra
Zoology
Arctic region
Modern climate change
Russian Arctic
Cladocera
Pollen
Biodiversity
Diatoms
Chironomids
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Summary:Recent Arctic warming has major influences on biological communities, especially in freshwater environments. There is substantial evidence that lake ecosystems in the Canadian Arctic and Fennoscandia are undergoing changes that have been linked to human-induced climate warming during the past 150–100 years. However, only few data linking recent climatic changes with the changes in biological communities are available from the Russian Arctic. We investigated a short sediment core (bottom of the core dates to 1830 CE) from Lake Bolshoy Kharbey, the biggest lake of the Bol`shezemelskaya Tundra, western Russian Arctic, using chironomid, cladocera, diatom and palynological analyses. Variations in biological proxy were linked to regional meteorological data and compared with the available sub-recent palaeoecological and hydrobiological studies from the region. The overall change in species composition was the smallest for terrestrial vegetation (0.485 SD) followed by cladoceran communities (0.966 SD). Chironomid taxonomic turnover was 1.331 SD, and the greatest rate of change was observed in diatom assemblages (1.701 SD). Changes in biological communities demonstrated a correlation with meteorologically recorded climatic parameters (air temperature and precipitation). The strongest taxonomic shifts in biological communities took place in 1880 and 1980. Both dates can be linked with prominent and recent climatic events: 1880 can be related to the end of the Little Ice Age in the region and 1980 is the beginning of the modern accelerating warming.
ISSN:0722-4060
1432-2056
DOI:10.1007/s00300-021-02876-7