Pollen and pediastrum record from the southern Taymyr peninsula, northern Siberia ...

• Main Authors: Niemeyer, Bastian, Herzschuh, Ulrike, Pestryakova, Luidmila A
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2015
• Subjects: Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn; Betula nana; Climate change; permafrost; Taymyr; Taymyr Peninsula; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.834488; https://doi.pangaea.de/10.1594/PANGAEA.834488

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 210Pb/137Cs 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, ... : Supplement to: Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Luidmila A (2015): Vegetation and lake changes on the southern Taymyr peninsula, northern Siberia, during the last 300 years inferred from pollen and Pediastrum green algae records. The Holocene, 25(4), 596-606 ...