Abstract
summaryGramousti lake and Rezina marsh are small basins, of similar size, 20 km apart but at contrasting heights of 285 and 1800 m. Comparison of the palaeoecological and sedimentary sequences from the two sites indicates that in the early postglacial, there was distinct altitudinal zonation of the vegetation. In the mountains, a dense mixed woodland containing at least sixteen different tree taxa became established whereas the lowland vegetation consisted of an open oak woodland which was much less diverse. It is suggested that the differences seen between the two sites is evidence for the existence of a montane refugium for temperate tree taxa during the lateglacial. The great contrast over such a small spatial distance suggests that refugia were probably small pockets of vegetation in micro‐environmentally favourable locations, for example, the more humid mountains. Throughout the first 5000 yr of the postglacial, the contrast in vegetation around the two sites persisted and it was not until c. 6000 BP that the ‘warm‐stage’ refugium in the mountains became reduced in diversity and density. Finally, the onset of anthropogenic disturbance at c. 4000 BP resulted in the total depletion of the montane forest and the dominance of a herbaceous vegetation at both sites.
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Dates
Type | When |
---|---|
Created | 19 years, 3 months ago (April 29, 2006, 11:03 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 23, 2023, 5:03 a.m.) |
Indexed | 11 months, 1 week ago (Sept. 19, 2024, 11:04 a.m.) |
Issued | 33 years, 3 months ago (May 1, 1992) |
Published | 33 years, 3 months ago (May 1, 1992) |
Published Online | 19 years, 4 months ago (April 28, 2006) |
Published Print | 33 years, 3 months ago (May 1, 1992) |
@article{WILLIS_1992, title={The late Quaternary vegetational history of northwest Greece: III. A comparative study of two contrasting sites}, volume={121}, ISSN={1469-8137}, url={http://dx.doi.org/10.1111/j.1469-8137.1992.tb01099.x}, DOI={10.1111/j.1469-8137.1992.tb01099.x}, number={1}, journal={New Phytologist}, publisher={Wiley}, author={WILLIS, K.J.}, year={1992}, month=may, pages={139–155} }