Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan
Due to methodological challenges there are only a few studies that focus on macrophyte dynamics in large lakes despite their notable role in a lake's ecosystem functioning. This study investigates composition and productivity changes of the submerged vegetation of Lake Karakul, Pamir Mountains...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.877361 2023-05-15T17:58:07+02:00 Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan Heinecke, Liv Epp, Laura Saskia Reschke, Maria Stoof-Leichsenring, Kathleen Rosmarie Mischke, Steffen Plessen, Birgit Herzschuh, Ulrike LATITUDE: 39.017600 * LONGITUDE: 73.532750 * DATE/TIME START: 2012-04-22T00:00:00 * DATE/TIME END: 2012-04-22T00:00:00 2017-07-03 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.877361 https://doi.org/10.1594/PANGAEA.877361 en eng PANGAEA Supplementary material (URI: https://store.pangaea.de/Publications/Heinecke-etal_2017/Supplementary_material.xlsx) (LH058IL 95%_assigned uniq c10 l10 clean EC_embl117_Blanks_NTCs) https://doi.pangaea.de/10.1594/PANGAEA.877361 https://doi.org/10.1594/PANGAEA.877361 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Heinecke, Liv; Epp, Laura Saskia; Reschke, Maria; Stoof-Leichsenring, Kathleen Rosmarie; Mischke, Steffen; Plessen, Birgit; Herzschuh, Ulrike (2017): Aquatic macrophyte dynamics in Lake Karakul (Eastern Pamir) over the last 29 cal ka revealed by sedimentary ancient DNA and geochemical analyses of macrofossil remains. Journal of Paleolimnology, 58(3), 403-417, https://doi.org/10.1007/s10933-017-9986-7 AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.877361 https://doi.org/10.1007/s10933-017-9986-7 2023-01-20T07:33:58Z Due to methodological challenges there are only a few studies that focus on macrophyte dynamics in large lakes despite their notable role in a lake's ecosystem functioning. This study investigates composition and productivity changes of the submerged vegetation of Lake Karakul, Pamir Mountains (Tajikistan), using sedimentary ancient DNA metabarcoding and elemental (C/N) and isotopic (d13C, d15N) measurements of Stuckenia cf. pamirica ((Baagøe) Z.Kaplan; Potamogetonaceae) leaf remains. No Stuckenia cf. pamirica leaf remains were found for 28.7 to 26.1 cal ka BP, when both Potamogetonaceae and Chara (L.) DNA sequences were recorded, suggesting sparse submerged vegetation at the coring site. This agrees with the inference of a deep lake reached using geochemical proxies. From 26.1 to 17.5 cal ka BP a few macrophyte remains and high numbers of Potamogetonaceae sequences were recovered: lake level was probably low, as suggested by other studies on the lake. Another phase of increased numbers of Chara sequences and the absence of Stuckenia cf. pamirica leaf remains was found between 17.5 and 12.2 cal ka BP, which coincides with a lake-level transgression at Lake Karakul as indicated by paleo-shoreline investigations. Analyses of macrophyte remains reveal intermediate paleo-productivity from 6.9 cal ka BP and high paleo-productivity from 2.2 cal ka BP onwards. From comparisons with other studies, we suggest that lake-level changes are the main driver for the submerged vegetation composition and productivity at the coring site in Lake Karakul and underline our conclusions by depicting the present-day distribution of Stuckenia cf. pamirica and Chara within the lake. Dataset permafrost PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(73.532750,73.532750,39.017600,39.017600) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI |
spellingShingle |
AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI Heinecke, Liv Epp, Laura Saskia Reschke, Maria Stoof-Leichsenring, Kathleen Rosmarie Mischke, Steffen Plessen, Birgit Herzschuh, Ulrike Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan |
topic_facet |
AWI_Envi AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI Polar Terrestrial Environmental Systems @ AWI |
description |
Due to methodological challenges there are only a few studies that focus on macrophyte dynamics in large lakes despite their notable role in a lake's ecosystem functioning. This study investigates composition and productivity changes of the submerged vegetation of Lake Karakul, Pamir Mountains (Tajikistan), using sedimentary ancient DNA metabarcoding and elemental (C/N) and isotopic (d13C, d15N) measurements of Stuckenia cf. pamirica ((Baagøe) Z.Kaplan; Potamogetonaceae) leaf remains. No Stuckenia cf. pamirica leaf remains were found for 28.7 to 26.1 cal ka BP, when both Potamogetonaceae and Chara (L.) DNA sequences were recorded, suggesting sparse submerged vegetation at the coring site. This agrees with the inference of a deep lake reached using geochemical proxies. From 26.1 to 17.5 cal ka BP a few macrophyte remains and high numbers of Potamogetonaceae sequences were recovered: lake level was probably low, as suggested by other studies on the lake. Another phase of increased numbers of Chara sequences and the absence of Stuckenia cf. pamirica leaf remains was found between 17.5 and 12.2 cal ka BP, which coincides with a lake-level transgression at Lake Karakul as indicated by paleo-shoreline investigations. Analyses of macrophyte remains reveal intermediate paleo-productivity from 6.9 cal ka BP and high paleo-productivity from 2.2 cal ka BP onwards. From comparisons with other studies, we suggest that lake-level changes are the main driver for the submerged vegetation composition and productivity at the coring site in Lake Karakul and underline our conclusions by depicting the present-day distribution of Stuckenia cf. pamirica and Chara within the lake. |
format |
Dataset |
author |
Heinecke, Liv Epp, Laura Saskia Reschke, Maria Stoof-Leichsenring, Kathleen Rosmarie Mischke, Steffen Plessen, Birgit Herzschuh, Ulrike |
author_facet |
Heinecke, Liv Epp, Laura Saskia Reschke, Maria Stoof-Leichsenring, Kathleen Rosmarie Mischke, Steffen Plessen, Birgit Herzschuh, Ulrike |
author_sort |
Heinecke, Liv |
title |
Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan |
title_short |
Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan |
title_full |
Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan |
title_fullStr |
Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan |
title_full_unstemmed |
Elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core KK12-1, Lake Karakul, Pamir Mountains, Tajikistan |
title_sort |
elemental and isotopic measurements of macrophyte remains and raw sequence data in sediment core kk12-1, lake karakul, pamir mountains, tajikistan |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.877361 https://doi.org/10.1594/PANGAEA.877361 |
op_coverage |
LATITUDE: 39.017600 * LONGITUDE: 73.532750 * DATE/TIME START: 2012-04-22T00:00:00 * DATE/TIME END: 2012-04-22T00:00:00 |
long_lat |
ENVELOPE(73.532750,73.532750,39.017600,39.017600) |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Supplement to: Heinecke, Liv; Epp, Laura Saskia; Reschke, Maria; Stoof-Leichsenring, Kathleen Rosmarie; Mischke, Steffen; Plessen, Birgit; Herzschuh, Ulrike (2017): Aquatic macrophyte dynamics in Lake Karakul (Eastern Pamir) over the last 29 cal ka revealed by sedimentary ancient DNA and geochemical analyses of macrofossil remains. Journal of Paleolimnology, 58(3), 403-417, https://doi.org/10.1007/s10933-017-9986-7 |
op_relation |
Supplementary material (URI: https://store.pangaea.de/Publications/Heinecke-etal_2017/Supplementary_material.xlsx) (LH058IL 95%_assigned uniq c10 l10 clean EC_embl117_Blanks_NTCs) https://doi.pangaea.de/10.1594/PANGAEA.877361 https://doi.org/10.1594/PANGAEA.877361 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.877361 https://doi.org/10.1007/s10933-017-9986-7 |
_version_ |
1766166650618380288 |