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Vegetation response to abrupt climate changes in Western Europe from 45 to 14.7k cal a BP: the Bergsee lacustrine record (Black Forest, Germany)
Author(s) -
DupratOualid Fanny,
Rius Damien,
Bégeot Carole,
Magny Michel,
Millet Laurent,
Wulf Sabine,
Appelt Oona
Publication year - 2017
Publication title -
journal of quaternary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.142
H-Index - 94
eISSN - 1099-1417
pISSN - 0267-8179
DOI - 10.1002/jqs.2972
Subject(s) - stadial , tephra , physical geography , glacial period , radiometric dating , vegetation (pathology) , radiocarbon dating , chronology , steppe , period (music) , tephrochronology , climate change , paleoclimatology , holocene , younger dryas , taiga , geology , geography , oceanography , forestry , volcano , paleontology , archaeology , medicine , physics , pathology , acoustics
Between 45 and 14.7k cal a BP, the North Atlantic climate was characterized by a succession of short‐lived Greenland Stadials (GS)/Interstadials (GI), which impacted terrestrial environments. We present a new pollen record from the Bergsee (47°34′20″N, 7°56′11″E), which was ice free during the Last Glacial. We constructed a robust chronology for the period 45–14.7k cal a BP based on 14 accelerator mass spectrometry radiocarbon dates and a tephra attributed to the Laacher See Tephra. Vegetation history was reconstructed at the sub‐millennial scale using pollen analysis. At millennial timescale, a 45–30k cal a BP period shows relatively high tree percentages and marked forest developments, consistent with warmer and more humid conditions during Marine Isotope Stage (MIS) 3. This contrasts with a 30–14.7k cal a BP period of steppe conditions, favoured by a colder/more arid MIS 2. In detail, vegetation seems to respond to GIs and GSs with the successive development of steppes and boreal forests. The impact of Heinrich events is also recorded with a marked development of Artemisia . Comparison with European records shows the contribution of the Bergsee pollen record to understanding impacts of the North Atlantic climate variability on landscapes across longitudinal and latitudinal gradients.