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Newly acquired palaeobotanical data, including pollen, charred and uncharred wood, provided an exhaustive overview of the temporal changes in woodlands, which changes are due to the cumulative effect of natural processes and the long-term impact of pre-agrarian societies. We used the unique advantage of the peat bog archaeological site at Szczepanki located on an island in the former Lake Staświn (Masurian Lake District) to get an overview of wood exploitation throughout the Stone Age. Special attention was paid to the period of the most intense settlement, the period of the para-Neolithic Zedmar culture. This culture is interesting due to its economy having not been fully recognized so far, especially with respect to the use of plant resources. The evidence from Szczepanki confirmed the use of 16 arboreal taxa, accessible in local woodlands, as a source of timber by foragers. The majority of both unworked wood and fragments bearing traces of processing has been discovered in layers corresponding to the Zedmar period. An important role in the economy was played by wood with medium or low mechanical properties that was however fissile and amenable to woodworking. In addition, other useful properties such as flexibility, lightness, water resistance, strength and ease of splitting were favoured in the selection. The temporal distribution of wood remains in cultural layers at Szczepanki was convergent with a pollen record documenting the course of postglacial migration and local growth of particular taxa, as well as with the archaeologically documented changes in the intensity and time frame of the settlement. [ABSTRACT FROM AUTHOR]

Pollen analysis of sediments from three lakes and analysis of plant macroremains including charcoal from archaeological sites in the Mazurian Lake District provide new data for the reconstruction of vegetation changes related to human activity between the 1st and 13th century ad. At that time settlements of the Bogaczewo culture (from the turn of the 1st century ad to the first part of the 5th century ad), the Olsztyn Group (second part of the 5th century ad to the 7th or beginning of the 8th century ad), and the Prussian Galinditae tribes (8th/9th-13th century ad) developed. The most intensive woodland clearing occurred between the 1st and 6th/7th century ad. Presence of Cerealia-type, Secale cereale and Cannabis-type pollen, as well as macroremains of Hordeum vulgare, S. cereale, Triticum spelta, T. cf. monococcum, T. cf. dicoccum, Avena sp. and Panicum miliaceum documented local agriculture. High Betula representation synchronous with microcharcoal occurrence suggests shifting agriculture. After forest regeneration between c. ad 650 and 1100, the area was strongly deforested due to the early medieval occupation by Prussian tribes. The archaeobotanical examination of samples taken in a cemetery and a large settlement of the Roman Iron Age revealed strong differences in the taxonomic composition of the fossil plant remains. An absolute dominance of birch charcoal in the samples from the cemetery indicates its selective use for funeral pyre construction. There is a difference between cereals found in both contexts: numerous grains of Triticum have been found in the cemetery, while in the settlement crops were represented mostly by Secale and Hordeum. Grass tubers, belonging probably to Phleum pratense, are among the particularly interesting plant remains found in the cemetery. [ABSTRACT FROM AUTHOR]