Southern European species in the flora of towns in the central Poland
2009
Witoslawski, P., University of Lodz, Lodz (Poland). Faculty of Biology and Environment Protection, Department of Geobotany and Plant Ecology | Bomanowska, A., University of Lodz, Lodz (Poland). Faculty of Biology and Environment Protection, Department of Geobotany and Plant Ecology
The aim of the study was to investigate the participation and conditions of occurence of southern European species (with Mediterranean or Mediterranean-continental type of geographic range) in the synanthropic floras of major towns in central Poland. Investigations were conducted for 7 towns in the region with population larger than 50 thousand inhabitants. A total of 142 southern European species were found to occur in the analyzed towns (15% of their entire synanthropic flora and 30% in the flora of anthropophytes). The predominant group of species are non-naturalized anthropophytes (45%), a significant group is formed by archaeophytes (34%). The share of kenophytes is smaller (21%). In the individual towns, the number of southern European species varies from 134 to 53. The share of southern European species in the flora varies from 12.2% to 16.4% for the total synanthropic flora and is the highest in Lodz i.e. the biggest city of the analyzed. The share of this group of species spreads differently among anthropophytes and metaphytes. In Lodz it is lower than in the other cities. Similarity analysis performed for entire grass floras and separately for geographical-historical groups in individual towns points to a very strong similarity between Lodz and Zgierz - two towns with a similar history and strong transport links.
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