Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records
Siberian arctic vegetation and lake water communities, known for their temperature dependence, are expected to be particularly impacted by recent climate change and high warming rates. However, decadal information on the nature and strength of recent vegetation change and its time lag to climate sig...
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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:40488 2023-12-17T10:26:31+01:00 Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records Niemeyer, Bastian Herzschuh, Ulrike Pestryakova, Luidmila Agafyevna 2018-04-30 application/pdf https://publishup.uni-potsdam.de/frontdoor/index/index/docId/40488 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-404882 https://publishup.uni-potsdam.de/files/40488/pmnr421.online.pdf eng eng https://publishup.uni-potsdam.de/frontdoor/index/index/docId/40488 urn:nbn:de:kobv:517-opus4-404882 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-404882 https://publishup.uni-potsdam.de/files/40488/pmnr421.online.pdf https://rightsstatements.org/vocab/InC/1.0/ info:eu-repo/semantics/openAccess ddc:550 Mathematisch-Naturwissenschaftliche Fakultät postprint doc-type:article 2018 ftubpotsdam 2023-11-19T23:35:07Z Siberian arctic vegetation and lake water communities, known for their temperature dependence, are expected to be particularly impacted by recent climate change and high warming rates. However, decadal information on the nature and strength of recent vegetation change and its time lag to climate signals are rare. In this study, we present a Pb-210/Cs-137 dated pollen and Pediastrum species record from a unnamed lake in the south of the Taymyr peninsula covering the period from AD 1706 to 2011. Thirty-nine palynomorphs and 10 morphotypes of Pediastrum species were studied to assess changes in vegetation and lake conditions as probable responses to climate change. We compared the pollen record with Pediastrum species, which we consider to be important proxies of climate changes. Three pollen assemblage zones characterised by Betula nana, Alnus viridis and Larix gmelinii (1706-1808); herbs such as Cyperaceae, Artemisia or Senecio (1808-1879), and higher abundance of Larix pollen (1955-2011) are visible. Also, three Pediastrum assemblage zones show changes of aquatic conditions: higher abundances of Pediastrum boryanum var. brevicorne (1706-1802); medium abundances of P. kawraiskyi and P. integrum (1802-1840 and 1920-1980), indicating cooler conditions while less eutrophic conditions are indicated by P. boryanum, and a mainly balanced composition with only small changes of cold- and warm-adapted Pediastrum species (1965-2011). In general, compositional Pediastrum species turnover is slightly higher than that indicated by pollen data (0.54 vs 0.34 SD), but both are only minor for this treeline location. In conclusion, the relevance of differentiation of Pediastrum species is promising and can give further insights into the relationship between lakes and their surrounding vegetation transferred onto climatic conditions. Article in Journal/Newspaper Arctic Betula nana Climate change Taymyr Taymyr Peninsula Siberia University of Potsdam: publish.UP Arctic Taymyr ENVELOPE(89.987,89.987,68.219,68.219) |
institution |
Open Polar |
collection |
University of Potsdam: publish.UP |
op_collection_id |
ftubpotsdam |
language |
English |
topic |
ddc:550 Mathematisch-Naturwissenschaftliche Fakultät |
spellingShingle |
ddc:550 Mathematisch-Naturwissenschaftliche Fakultät Niemeyer, Bastian Herzschuh, Ulrike Pestryakova, Luidmila Agafyevna Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records |
topic_facet |
ddc:550 Mathematisch-Naturwissenschaftliche Fakultät |
description |
Siberian arctic vegetation and lake water communities, known for their temperature dependence, are expected to be particularly impacted by recent climate change and high warming rates. However, decadal information on the nature and strength of recent vegetation change and its time lag to climate signals are rare. In this study, we present a Pb-210/Cs-137 dated pollen and Pediastrum species record from a unnamed lake in the south of the Taymyr peninsula covering the period from AD 1706 to 2011. Thirty-nine palynomorphs and 10 morphotypes of Pediastrum species were studied to assess changes in vegetation and lake conditions as probable responses to climate change. We compared the pollen record with Pediastrum species, which we consider to be important proxies of climate changes. Three pollen assemblage zones characterised by Betula nana, Alnus viridis and Larix gmelinii (1706-1808); herbs such as Cyperaceae, Artemisia or Senecio (1808-1879), and higher abundance of Larix pollen (1955-2011) are visible. Also, three Pediastrum assemblage zones show changes of aquatic conditions: higher abundances of Pediastrum boryanum var. brevicorne (1706-1802); medium abundances of P. kawraiskyi and P. integrum (1802-1840 and 1920-1980), indicating cooler conditions while less eutrophic conditions are indicated by P. boryanum, and a mainly balanced composition with only small changes of cold- and warm-adapted Pediastrum species (1965-2011). In general, compositional Pediastrum species turnover is slightly higher than that indicated by pollen data (0.54 vs 0.34 SD), but both are only minor for this treeline location. In conclusion, the relevance of differentiation of Pediastrum species is promising and can give further insights into the relationship between lakes and their surrounding vegetation transferred onto climatic conditions. |
format |
Article in Journal/Newspaper |
author |
Niemeyer, Bastian Herzschuh, Ulrike Pestryakova, Luidmila Agafyevna |
author_facet |
Niemeyer, Bastian Herzschuh, Ulrike Pestryakova, Luidmila Agafyevna |
author_sort |
Niemeyer, Bastian |
title |
Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records |
title_short |
Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records |
title_full |
Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records |
title_fullStr |
Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records |
title_full_unstemmed |
Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records |
title_sort |
vegetation and lake changes on the southern taymyr peninsula, northern siberia, during the last 300 years inferred from pollen and pediastrum green algae records |
publishDate |
2018 |
url |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/40488 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-404882 https://publishup.uni-potsdam.de/files/40488/pmnr421.online.pdf |
long_lat |
ENVELOPE(89.987,89.987,68.219,68.219) |
geographic |
Arctic Taymyr |
geographic_facet |
Arctic Taymyr |
genre |
Arctic Betula nana Climate change Taymyr Taymyr Peninsula Siberia |
genre_facet |
Arctic Betula nana Climate change Taymyr Taymyr Peninsula Siberia |
op_relation |
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/40488 urn:nbn:de:kobv:517-opus4-404882 https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-404882 https://publishup.uni-potsdam.de/files/40488/pmnr421.online.pdf |
op_rights |
https://rightsstatements.org/vocab/InC/1.0/ info:eu-repo/semantics/openAccess |
_version_ |
1785578243800170496 |