Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia
Millennial-scale climate change history in eastern Siberia and relationships between diatom diversity, paleoclimate, and sediment-geochemical lake system trajectories are still poorly understood. This study investigates multi-proxy time series reaching back to the Late Pleistocene derived from radio...
Published in: | Frontiers in Earth Science |
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Online Access: | https://epic.awi.de/id/eprint/55122/ https://epic.awi.de/id/eprint/55122/1/Biskaborn_et_al_2021_Late_Quaternary_Climate_Reconstruction_and_Lead-Lag_Relationships.pdf https://doi.org/10.3389/feart.2021.737353 https://hdl.handle.net/10013/epic.c1a98bcb-74d0-4847-b55c-08099abb311a https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:55122 2023-05-15T18:44:58+02:00 Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia Biskaborn, Boris K. Nazarova, Larisa Kröger, Tim Pestryakova, Lyudmila A. Syrykh, Liudmila Pfalz, Gregor Herzschuh, Ulrike Diekmann, Bernhard 2021-08-12 application/pdf https://epic.awi.de/id/eprint/55122/ https://epic.awi.de/id/eprint/55122/1/Biskaborn_et_al_2021_Late_Quaternary_Climate_Reconstruction_and_Lead-Lag_Relationships.pdf https://doi.org/10.3389/feart.2021.737353 https://hdl.handle.net/10013/epic.c1a98bcb-74d0-4847-b55c-08099abb311a https://hdl.handle.net/ unknown Frontiers https://epic.awi.de/id/eprint/55122/1/Biskaborn_et_al_2021_Late_Quaternary_Climate_Reconstruction_and_Lead-Lag_Relationships.pdf https://hdl.handle.net/ Biskaborn, B. K. orcid:0000-0003-2378-0348 , Nazarova, L. , Kröger, T. , Pestryakova, L. A. , Syrykh, L. , Pfalz, G. orcid:0000-0003-1218-177X , Herzschuh, U. orcid:0000-0003-0999-1261 and Diekmann, B. orcid:0000-0001-5129-3649 (2021) Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia , Frontiers in Earth Science, 9 . doi:10.3389/feart.2021.737353 <https://doi.org/10.3389/feart.2021.737353> , hdl:10013/epic.c1a98bcb-74d0-4847-b55c-08099abb311a EPIC3Frontiers in Earth Science, Frontiers, 9, ISSN: 2296-6463 Article isiRev 2021 ftawi https://doi.org/10.3389/feart.2021.737353 2022-06-19T23:12:19Z Millennial-scale climate change history in eastern Siberia and relationships between diatom diversity, paleoclimate, and sediment-geochemical lake system trajectories are still poorly understood. This study investigates multi-proxy time series reaching back to the Late Pleistocene derived from radiocarbon dated Lake Bolshoe Toko sediment cores, southeastern Yakutia, Russia. We analyzed diatoms, elements (XRF), minerals (XRD), grain-size, organic carbon, and included chironomid analyses and published pollen-data for quantitative paleoclimate reconstruction. Changes in diatom species abundances reveal repeated episodes of thermal stratification indicated by shifts from euplanktonic Aulacoseira to Cyclotella species. Chironomid and pollen-inferred temperature reconstruction reveal that the main shift between these diatom species is related to the onset of Holocene Thermal Maximum (HTM) at 7.1 cal ka BP. Comparison to other paleoclimate records along a north-south transect through Yakutia shows that the HTM was delayed as far south as the Stanovoy mountains. Relationships between sediment-geochemistry, paleoclimate variability and diatom species richness (alpha diversity) was tested in a moving temporal offset approach to detect lead-lag relationships. Sediment-geochemical data, mainly uniform during the Holocene, revealed strongest positive or negative correlations ahead of species richness changes. Mean July air temperature (TJuly) reconstructions correlate with both Hill numbers and relative assemblage changes indicated by sample scores of multidimensional scaling analysis (MDS) over the entire time series. We found that sediment organic carbon revealed distinct positive correlations, i.e., centennial-scale delay to increases in diatom effective richness (Hill numbers N0 and N2). We conclude that a lag of deposited organic carbon concentrations behind changes in diatom alpha diversity reveals that species richness can augment the production and thus sequestration of organic matter in comparable lake systems. Article in Journal/Newspaper Yakutia Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Stanovoy ENVELOPE(42.810,42.810,65.583,65.583) Frontiers in Earth Science 9 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Millennial-scale climate change history in eastern Siberia and relationships between diatom diversity, paleoclimate, and sediment-geochemical lake system trajectories are still poorly understood. This study investigates multi-proxy time series reaching back to the Late Pleistocene derived from radiocarbon dated Lake Bolshoe Toko sediment cores, southeastern Yakutia, Russia. We analyzed diatoms, elements (XRF), minerals (XRD), grain-size, organic carbon, and included chironomid analyses and published pollen-data for quantitative paleoclimate reconstruction. Changes in diatom species abundances reveal repeated episodes of thermal stratification indicated by shifts from euplanktonic Aulacoseira to Cyclotella species. Chironomid and pollen-inferred temperature reconstruction reveal that the main shift between these diatom species is related to the onset of Holocene Thermal Maximum (HTM) at 7.1 cal ka BP. Comparison to other paleoclimate records along a north-south transect through Yakutia shows that the HTM was delayed as far south as the Stanovoy mountains. Relationships between sediment-geochemistry, paleoclimate variability and diatom species richness (alpha diversity) was tested in a moving temporal offset approach to detect lead-lag relationships. Sediment-geochemical data, mainly uniform during the Holocene, revealed strongest positive or negative correlations ahead of species richness changes. Mean July air temperature (TJuly) reconstructions correlate with both Hill numbers and relative assemblage changes indicated by sample scores of multidimensional scaling analysis (MDS) over the entire time series. We found that sediment organic carbon revealed distinct positive correlations, i.e., centennial-scale delay to increases in diatom effective richness (Hill numbers N0 and N2). We conclude that a lag of deposited organic carbon concentrations behind changes in diatom alpha diversity reveals that species richness can augment the production and thus sequestration of organic matter in comparable lake systems. |
format |
Article in Journal/Newspaper |
author |
Biskaborn, Boris K. Nazarova, Larisa Kröger, Tim Pestryakova, Lyudmila A. Syrykh, Liudmila Pfalz, Gregor Herzschuh, Ulrike Diekmann, Bernhard |
spellingShingle |
Biskaborn, Boris K. Nazarova, Larisa Kröger, Tim Pestryakova, Lyudmila A. Syrykh, Liudmila Pfalz, Gregor Herzschuh, Ulrike Diekmann, Bernhard Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia |
author_facet |
Biskaborn, Boris K. Nazarova, Larisa Kröger, Tim Pestryakova, Lyudmila A. Syrykh, Liudmila Pfalz, Gregor Herzschuh, Ulrike Diekmann, Bernhard |
author_sort |
Biskaborn, Boris K. |
title |
Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia |
title_short |
Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia |
title_full |
Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia |
title_fullStr |
Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia |
title_full_unstemmed |
Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia |
title_sort |
late quaternary climate reconstruction and lead-lag relationships of biotic and sediment-geochemical indicators at lake bolshoe toko, siberia |
publisher |
Frontiers |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/55122/ https://epic.awi.de/id/eprint/55122/1/Biskaborn_et_al_2021_Late_Quaternary_Climate_Reconstruction_and_Lead-Lag_Relationships.pdf https://doi.org/10.3389/feart.2021.737353 https://hdl.handle.net/10013/epic.c1a98bcb-74d0-4847-b55c-08099abb311a https://hdl.handle.net/ |
long_lat |
ENVELOPE(42.810,42.810,65.583,65.583) |
geographic |
Stanovoy |
geographic_facet |
Stanovoy |
genre |
Yakutia Siberia |
genre_facet |
Yakutia Siberia |
op_source |
EPIC3Frontiers in Earth Science, Frontiers, 9, ISSN: 2296-6463 |
op_relation |
https://epic.awi.de/id/eprint/55122/1/Biskaborn_et_al_2021_Late_Quaternary_Climate_Reconstruction_and_Lead-Lag_Relationships.pdf https://hdl.handle.net/ Biskaborn, B. K. orcid:0000-0003-2378-0348 , Nazarova, L. , Kröger, T. , Pestryakova, L. A. , Syrykh, L. , Pfalz, G. orcid:0000-0003-1218-177X , Herzschuh, U. orcid:0000-0003-0999-1261 and Diekmann, B. orcid:0000-0001-5129-3649 (2021) Late Quaternary Climate Reconstruction and Lead-Lag Relationships of Biotic and Sediment-Geochemical Indicators at Lake Bolshoe Toko, Siberia , Frontiers in Earth Science, 9 . doi:10.3389/feart.2021.737353 <https://doi.org/10.3389/feart.2021.737353> , hdl:10013/epic.c1a98bcb-74d0-4847-b55c-08099abb311a |
op_doi |
https://doi.org/10.3389/feart.2021.737353 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
_version_ |
1766235859053445120 |