The Lateglacial and Holocene environmental history of the Ioannina basin, north-west Greece

Lawson, Ian T.; Frogley, Michael R.; Bryant, Charlotte; Preece, Richard C.; Tzedakis, Polychronis C.

doi:10.1016/j.quascirev.2004.02.003

Cited by 141 publications

(112 citation statements)

References 71 publications

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“…Summer stratification was probably promoted by higher summer temperatures in the early Holocene, such as reported from various records in the central and eastern Mediterranean region (e.g., Allen et al, 1999;Lawson et al, 2004;Kotthoff et al, 2008a;Vogel et al, 2010a;Aufgebauer et al, 2012). Increased humidity in the early Holocene conflicts with the high δ 18 O carb values, which would normally be interpreted as indicating a low P /E ratio.…”

Section: A Francke Et Al: a Late Glacial To Holocene Record Of Envimentioning

confidence: 80%

“…Emeis et al, 2000). However, a separation in two phases such as indicated by Co1260 is not evident in other terrestrial records from Greece or in marine pollen records from the Aegean Sea and the Sea of Marmara (Rossignol-Strick, 1993;Digerfeldt et al, 2000;Lawson et al, 2004Lawson et al, , 2005Kotthoff et al, 2008aKotthoff et al, , 2011Valsecchi et al, 2012). At least the particular dry phase described from the northern Aegean region around 11 800 cal yr BP (Kotthoff et al, 2008a corresponds with the low OM content and low TOC/TN ratios in Co1260 between 11 800 and 11 600 cal yr BP.…”

Section: Late Glacial (12 500 To 11 500 Cal Yr Bp)mentioning

confidence: 86%

“…Overall cold and dry climate between 12 500 and 11 500 cal yr BP at Lake Dojran can be attributed to the Younger Dryas, when 6 • C lower temperatures and arid conditions with 50 % less annual precipitation compared to modern conditions are reported from the northern Aegean region (Kotthoff et al, 2008a, the Sea of Marmara (Valsecchi et al, 2012), and from other terrestrial records in Italy (Allen et al, 2002), Macedonia (Bordon et al, 2009;, and Greece (Digerfeldt et al, 2000;Lawson et al, 2004). However, the cold and dry climate during the Younger Dryas is barely visible in geochemical and hydrological data from lakes Prespa and Ohrid (Fig.…”

Section: Late Glacial (12 500 To 11 500 Cal Yr Bp)mentioning

confidence: 97%

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A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

et al. 2013

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A Late Glacial to Holocene sediment sequence (Co1260, 717 cm) from Lake Dojran, located at the boarder of the F.Y.R. of Macedonia and Greece, has been investigated to provide information on climate variability in the Balkan region. A robust age-model was established from 13 radiocarbon ages, and indicates that the base of the sequence was deposited at ca. 12 500 cal yr BP, when the lake-level was low. Variations in sedimentological (H₂O, TOC, CaCO₃, TS, TOC/TN, TOC/TS, grain-size, XRF, δ¹⁸O_carb, δ¹³C_carb, δ¹³C_org) data were linked to hydro-acoustic data and indicate that warmer and more humid climate conditions characterised the remaining period of the Younger Dryas until the beginning of the Holocene. The Holocene exhibits significant environmental variations, including the 8.2 and 4.2 ka cooling events, the Medieval Warm Period and the Little Ice Age. Human induced erosion processes in the catchment of Lake Dojran intensified after 2800 cal yr BP

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Section: A Francke Et Al: a Late Glacial To Holocene Record Of Envimentioning

confidence: 80%

Section: Late Glacial (12 500 To 11 500 Cal Yr Bp)mentioning

confidence: 86%

Section: Late Glacial (12 500 To 11 500 Cal Yr Bp)mentioning

confidence: 97%

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A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

et al. 2013

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“…planktic foraminifera, dinoflagellate cysts, coccoliths) proxies show that the Mediterranean region experienced very different climatic and environmental conditions during the Lateglacial and much of the Holocene, and that these climate changes differ significantly across the Mediterranean from north to south, and from west to east (e.g. Wijmstra, 1969;Pons and Reille, 1988;Zonneveld, 1996;Combourieu Nebout et al, 1998;Geraga et al, 2000;Colmenero-Hildago et al, 2002;Pérez-Folgado et al, 2003;Lawson et al, 2004;Davis and Stevenson, 2007;Magny et al, 2003Magny et al, , 2006bMagny et al, , 2007Zanchetta et al, 2007;Kotthoff et al, 2008a, b). The quantitative paleoclimatic reconstructions inferred from pollen and chironomids records (e.g.…”

Section: Introductionmentioning

confidence: 99%

Terrestrial climate variability and seasonality changes in the Mediterranean region between 15 000 and 4000 years BP deduced from marine pollen records

et al. 2009

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Abstract. Pollen-based climate reconstructions were performed on two high-resolution pollen marines cores from the Alboran and Aegean Seas in order to unravel the climatic variability in the coastal settings of the Mediterranean region between 15 000 and 4000 years BP (the Lateglacial, and early to mid-Holocene). The quantitative climate reconstructions for the Alboran and Aegean Sea records focus mainly on the reconstruction of the seasonality changes (temperatures and precipitation), a crucial parameter in the Mediterranean region. This study is based on a multi-method approach comprising 3 methods: the Modern Analogues Technique (MAT), the recent Non-Metric Multidimensional Scaling/Generalized Additive Model method (NMDS/GAM) and Partial Least Squares regression (PLS). The climate signal inferred from this comparative approach confirms that cold and dry conditions prevailed in the Mediterranean region during the Oldest and Younger Dryas periods, while temperate conditions prevailed during the Bølling/Allerød and the Holocene. Our records suggest a West/East gradient of decreasing precipitation across the Mediterranean region during the cooler Late-glacial and early Holocene periods, similar to present-day conditions. Winter precipitation was highest during warm intervals and lowest during cooling phases. Several short-lived cool intervals (i.e. Older Dryas, another oscillation after this one (GI-1c2), Gerzensee/Preboreal Correspondence to: I. Dormoy (isabelle.dormoy@univ-fcomte.fr) Oscillations, 8.2 ka event, Bond events) connected to the North Atlantic climate system are documented in the Alboran and Aegean Sea records indicating that the climate oscillations associated with the successive steps of the deglaciation in the North Atlantic area occurred in both the western and eastern Mediterranean regions. This observation confirms the presence of strong climatic linkages between the North Atlantic and Mediterranean regions.

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“…, 1989. High resolution long pollen records from Greece documented considerable regional and temporal variability during the last Flora Mediterranea 23 -2013interglacial, suggesting the occurrence of spatial climatic regimes (Tzedakis 2000, Tzedakis & al. 2004.…”

Section: The Origin Of the Mediterranean Vegetationmentioning

confidence: 99%

Palynology and Mediterranean vegetation history

2013

Fl. Medit.

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The history of Mediterranean vegetation can be outlined using pollen grains contained in lacustrine, marine and other sediments. These sediments have recorded very important vegetation changes during recent geological times. For example, during the last 6 Ma (million years), the effects of different events acting at regional (e.g. the Messinian salinity crisis between 5.96 Ma and 5.33 Ma) and global (expansion of the Arctic ice at ca 2.6 Ma) scales produced a progressive decrease and final disappearance of tropical and subtropical taxa. However, prior to the start of the Quaternary the Mediterranean flora still included a consistent number of tropical and subtropical arboreal taxa accompanying deciduous and partly evergreen trees that have persisted until today. The most important features of the vegetation history of the Quaternary consist in the fact that vegetation adapted to climate changes due to changes in orbital cyclicity, alternating between glacial and interglacial periods. The more widespread vegetation types were steppe and grassland formations during the dry and cold glacial periods whereas either deciduous or evergreen forests were characteristic of interglacial periods. These cold-dry to warmhumid climate cycles became more and more intense towards the present. During the second half of the present interglacial, after the mid-Holocene, joint actions of increasing dryness, climate oscillations and human impact led to the present day Mediterranean plant landscape. It is however not clear how far the causation of this spread of evergreen taxa was climatic or human. One of the most exciting challenges is the prediction of the future course of Mediterranean vegetation. In this perspective a consistent help, not fully explored yet, can be found in aeropalynology, recording the pollen transported in the air. Together with modern surface samples, these data act as modern analogues. Though it probably does not represent the same past vegetational composition, the current pollen rain is the only basic reference on which our comparative approach can rely. Present trends are interpreted and future scenarios can be hypothesized just using a combination of aero-and archaeo-/palaeo-palynological approaches.

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The Lateglacial and Holocene environmental history of the Ioannina basin, north-west Greece

Cited by 141 publications

References 71 publications

A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)

Terrestrial climate variability and seasonality changes in the Mediterranean region between 15 000 and 4000 years BP deduced from marine pollen records

Palynology and Mediterranean vegetation history

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