Palynology of the First 30 Metres of a 120 M Deep Section in Northern Greece

Wijmstra, T.A.

doi:10.1111/j.1438-8677.1969.tb00591.x

Cited by 375 publications

(190 citation statements)

References 8 publications

(1 reference statement)

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“…No pollen data exist for the early part of the Li'^Ĉ jlacial and there is no conclusive evidence to indicate that short relatively warm interstadials "' the type recorded in I-'rance by Woillard (1978) and in Cireece by Wymstra (1969) occurred in Tasmanu' even though there is a record of rainforest development for the Huon Valley from 53 400 to 41 150 yr B.p. However, these dates are probabb minimal and tbis record could possibly be interglacial (Colboun & (ioede, 1979).…”

Section: Dischssionmentioning

confidence: 99%

Interglacial pollen and plant macrofossils from Langdon River, western Tasmania

et al. 1989

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summary Pollen and plant macrofossils from Langdon liner give an interglacial floral record for western Tasmania. The location of the site between the ice limits of the Last or Margaret Glaciation and the Penultimate or Henty Glaciation indicate that it cannot be younger than the Last Interglacial. The sequence of vegetation changes shows the succession Casuarina Phyllocladus‐Nothofagus with Casuarina as pioneer and Nothofagus as representing Maximum wet forest development. After the maximum the presence of Phyllocladus‐Nothofagus‐Eucalyptus‐Microstrobos suggests deterioration to subalpine woodland/shrubland, and Compositae, Gramineae‐Microstrobos to alpine shrubland and herbland. The sequence represents most of a glacial‐interglacial‐glacial cycle Of environmental changes that occurred before 43 000 14C yr B.P. Very high Casuarina values occur in the early part at the interglacial sequence which contrasts with the Holocene where Eucalyptus is more important than Casuarina. Otherwise the sequence of Phyllocladus, Nothofagus, Eucryphia‐Anodopetalum is the same as for Holocene forest development. The interglaeial ‘optimum’ is marked by the occurrence of Pomaderris apetala type and Dicksonia antarctica. There is some similarity with the Casuarina curves in the Lake George interglacials before the Last Interglacial. But, on the whole, there is more similarity with interglacial rainforest development in western South Island, New Zealand Only one cycle of vegetation change is recognized at Langdon River which is unlike New Zealand and central Chilean records from 40‐42° S which in different ways record a mid Last Interglacial climatic deterioration.

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Section: Dischssionmentioning

confidence: 99%

Interglacial pollen and plant macrofossils from Langdon River, western Tasmania

et al. 1989

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“…Unfortunately, the Portuguese pollen record does not extend beyond MIS 11. The only southern European record that continuously spans the last 800 kyr (and indeed the last 1.35 million years) is from Tenaghi Philippon, NE Greece (Wijmstra, 1969;Wijmstra and Smit, 1976;van der Wiel andWijmstra, 1987a, 1987b). While its astronomicallycalibrated timescale is not as well constrained as that of the Portuguese margin, comparison of the temperate tree pollen record with atmospheric methane www.clim-past.net/6/131/2010/concentrations has also revealed a strong coherence over the last 800 kyr (Tzedakis et al, 2009).…”

Section: Alternative Analogues and Implicationsmentioning

confidence: 99%

The MIS 11 – MIS 1 analogy, southern European vegetation, atmospheric methane and the "early anthropogenic hypothesis"

Tzedakis

2010

Clim. Past

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Abstract. Marine Isotope Stage (MIS) 11 has been considered a potential analogue for the Holocene and its future evolution. However, a dichotomy has emerged over the precise chronological alignment of the two intervals, with one solution favouring a synchronization of the precession signal and another of the obliquity signal. The two schemes lead to different implications over the natural length of the current interglacial and the underlying causes of the evolution of greenhouse gas concentrations. Here, the close coupling observed between changes in southern European tree populations and atmospheric methane concentrations in previous interglacials is used to evaluate the natural vs. anthropogenic contribution to Holocene methane emissions and assess the two alignment schemes. Comparison of the vegetation trends in MIS 1 and MIS 11 favours a precessional alignment, which would suggest that the Holocene is nearing the end of its natural course. This, combined with the divergence between methane concentrations and temperate tree populations after 5 kyr BP, provides some support for the notion that the Holocene methane trend may be anomalous compared to previous interglacials. In contrast, comparison of MIS 1 with MIS 19, which may represent a closer astronomical analogue than MIS 11, leads to substantially different conclusions on the projected natural duration of the current interglacial and the extent of the anthropogenic contribution to the Holocene methane budget. As answers vary with the choice of analogue, resolution of these issues using past interglacials remains elusive.

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“…It has been suggested that the southeast Alps and the adjacent Dinaric Mountains were the closest main refugial area whence spruce slowly migrated south and southeast (Lang, 1994). However, Picea pollen is absent from diagrams of the Late-glacial from north and northwest Greece (Wijmstra, 1969 ;Bottema, 1974 ;Tzedakis, 1994).…”

Section: The Holocene Recordmentioning

confidence: 99%

Pollen from Lake Sedmo Rilsko reveals southeast European postglacial vegetation in the highest mountain area of the Balkans

Bozilova

Tonkov

2000

New Phytologist

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A lacustrine sequence from Lake Sedmo Rilsko (altitude 2095 m) in the northwest of Rila Mountain, Bulgaria, was analysed on the basis of 84 pollen spectra and three "%C accelerator mass spectrometry dates. The lower part of the sequence (413-530 cm) corresponds to the Late-glacial. Three phases, two stadial and one interstadial, are characterized by the dominance of mountain-steppe herb vegetation composed of Artemisia, Chenopodiaceae and Poaceae, with single trees of Pinus and shrub land of Juniperus and Ephedra. The identification of pollen grains of Abies, Quercus robur-type, Corylus, Acer, Fagus and other mesophilous trees suggests that they survived the harsh Late-glacial conditions in refuges below an altitude of 1000 m, where moisture was sufficient for their growth. In the early Holocene period, Betula forests at high altitudes and, below them, closed deciduous forests with Quercus, Tilia, Ulmus and Corylus, occurred from 11800 until approx. 6700 cal. BP. The formation of the coniferous belt dominated by Pinus sylvestris, Pinus peuce and Abies alba lasted from between 6700 and 5000 cal. BP. The forest dynamics in the Subboreal and the Subatlantic ended with the invasion of Fagus sylvatica and Picea abies after approx. 4500 and 3300 cal. BP, respectively. Indications of anthropogenic activities, expansion of agriculture in the lowland foothills, and livestock grazing in the mountain meadows and pastures, are clearly evident from the pollen diagram from 2400 cal. BP onwards.

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Palynology of the First 30 Metres of a 120 M Deep Section in Northern Greece

Cited by 375 publications

References 8 publications

Interglacial pollen and plant macrofossils from Langdon River, western Tasmania

Interglacial pollen and plant macrofossils from Langdon River, western Tasmania

The MIS 11 – MIS 1 analogy, southern European vegetation, atmospheric methane and the "early anthropogenic hypothesis"

Pollen from Lake Sedmo Rilsko reveals southeast European postglacial vegetation in the highest mountain area of the Balkans

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Palynology of the First 30 Metres of a 120 M Deep Section in Northern Greece

Cited by 375 publications

References 8 publications

Interglacial pollen and plant macrofossils from Langdon River, western Tasmania

Interglacial pollen and plant macrofossils from Langdon River, western Tasmania

The MIS 11 – MIS 1 analogy, southern European vegetation, atmospheric methane and the &quot;early anthropogenic hypothesis&quot;

Pollen from Lake Sedmo Rilsko reveals southeast European postglacial vegetation in the highest mountain area of the Balkans

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The MIS 11 – MIS 1 analogy, southern European vegetation, atmospheric methane and the "early anthropogenic hypothesis"