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| Titel |
Vegetation dynamics in the Northeastern Mediterranean region during the past 23 000 yr: insights from a new pollen record from the Sea of Marmara |
| VerfasserIn |
V. Valsecchi, M. F. Sanchez Goñi, L. Londeix |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 8, no. 6 ; Nr. 8, no. 6 (2012-12-06), S.1941-1956 |
| Datensatznummer |
250005979
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| Publikation (Nr.) |
 copernicus.org/cp-8-1941-2012.pdf |
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| Zusammenfassung |
| High-resolution pollen analysis of core MD01-2430 from the Sea of Marmara
(40°47.81' N, 27°43.51' E) allows us to reconstruct the
vegetation response to climatic changes during the past 23 cal ka in the
Northeastern Mediterranean. Variation in mesic/temperate forest cover
indicates major climatic shifts connected to Heinrich Stadial 1,
Bölling-Allerød, Younger Dryas and to the onset of the Holocene.
Pollen–anthropogenic indicator approach was used to recognize human-induced
landscape changes in the Sea of Marmara. The pollen-inferred onset of the
Holocene occurs at ca. 11.5 cal ka, indicating that the Northeastern
Mediterranean region represents a transitional zone where higher moisture
availability supported an earlier forest expansion than the borderlands of
the Aegean Sea and Black Sea. Two major forest retreats occurred during the
Holocene at ca. 5.5 and 2.1 cal ka. The Holocene forest setbacks are in
phase with previously published alkenone-inferred sea-surface temperature
decreases in the Sea of Marmara reconstructed from the same core. Our new
pollen record testifies the sensitivity of Mediterranean forests to changes
in moisture availability, which is driven by changes in high-latitude atmospheric
processes (North Atlantic Oscillations and/or Siberian High). |
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