Universität zu Köln

Thienemann, Matthias, Masi, Alessia ORCID: 0000-0001-9822-9767, Kusch, Stephanie ORCID: 0000-0002-2708-4975, Sadori, Laura ORCID: 0000-0002-2774-6705, John, Stephan, Francke, Alexander ORCID: 0000-0002-0370-5802, Wagner, Bernd ORCID: 0000-0002-1369-7893 and Rethemeyer, Janet (2017). Organic geochemical and palynological evidence for Holocene natural and anthropogenic environmental change at Lake Dojran (Macedonia/Greece). Holocene, 27 (8). S. 1103 - 1115. LONDON: SAGE PUBLICATIONS LTD. ISSN 1477-0911

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Abstract

In this study, we present lipid biomarker and palynological data for a sediment core from Lake Dojran (Macedonia/Greece), which covers the entire Holocene period. We analyzed vascular plant-derived n-alkanes, combustion-derived polycyclic aromatic hydrocarbons (PAHs), fecal steroids, and bacterial and archaeal glycerol dialkyl glycerol tetraether (GDGT) lipids in concert with microcharcoal and pollen assemblages to reconstruct climatic, environmental, and human impact in the Dojran catchment and the greater Dojran area. Overall, our results suggest a relationship between anthropogenic activity and environmental/climatic change since increased human impact corresponds to phases of higher humidity and high lake levels at Lake Dojran. During the early Holocene, the record reveals increasing temperatures and humidity and concurrent increasing vegetation cover and runoff/soil erosion, respectively. Following a thermal maximum during the middle early Holocene, temperatures decrease gradually until present. The middle-Holocene at Lake Dojran is characterized by relatively stable environmental conditions followed by greater climatic instability and strong anthropogenic overprint during the late-Holocene. The fecal stanol record reveals phases of increased human impact during the early Bronze Age, the late Bonze/early Iron Age, and the Middle Ages. A phase of low stanol and PAH concentrations from the late Iron Age until the early Middle Ages is either related to ecosystem changes and/or changes in settlement pattern since concurrent pollen data indicate intensified land use. Human impact re-intensified during the Middle Ages with some variability probably related to climatic variations of the Medieval Warm Period' and the Little Ice Age'.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Thienemann, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Masi, Alessia UNSPECIFIED orcid.org/0000-0001-9822-9767 UNSPECIFIED Kusch, Stephanie UNSPECIFIED orcid.org/0000-0002-2708-4975 UNSPECIFIED Sadori, Laura UNSPECIFIED orcid.org/0000-0002-2774-6705 UNSPECIFIED John, Stephan UNSPECIFIED UNSPECIFIED UNSPECIFIED Francke, Alexander UNSPECIFIED orcid.org/0000-0002-0370-5802 UNSPECIFIED Wagner, Bernd UNSPECIFIED orcid.org/0000-0002-1369-7893 UNSPECIFIED Rethemeyer, Janet UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-224065
DOI:	10.1177/0959683616683261
Journal or Publication Title:	Holocene
Volume:	27
Number:	8
Page Range:	S. 1103 - 1115
Date:	2017
Publisher:	SAGE PUBLICATIONS LTD
Place of Publication:	LONDON
ISSN:	1477-0911
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language LAGO-DI-PERGUSA; NORTHEASTERN MEDITERRANEAN REGION; CLIMATE VARIABILITY; BRONZE-AGE; VEGETATION DYNAMICS; SEASONALITY CHANGES; AEGEAN REGION; FECAL STEROLS; HUMAN IMPACT; POLLEN Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22406