Abstract
Ruderal flora and vegetation is one of the youngest and most dynamic floristic-vegetation complexes. The anthropogenic conditionality, pronounced dynamism, microfragmentation in its distribution and great morpho-anatomical variability of its cenobionts are its important characteristics. The floristic composition and development stage of the ruderal flora and vegetation are important data in observing the consequences of increasingly intensifying processes of urbanization. Floristic studies of the ruderal flora in the territory of the town Kičevo, have established the presence of 290 taxa of vascular plants, classfied into 207 genera, 58 families and 3 classes.The most represented taxa in the ruderal flora of Kičevo are from the most numerous families in the flora of North Macedonia: Asteraceae (41), Poaceae (26), and Fabaceae (25). A total of eighteen genera with three or more taxa were recorded, and the genera with the largest number of taxa are: Vicia (6), Trifolium (5), Geranium, Veronica, Euphorbia, Rumex, Linaria and Ranunculus (4). Majority of the species which belong to these genera are characteristic indicators of tertiary ruderal vegetation. Analysis of the representation of certain life forms has determined the hemicryptophyto-therophite character of the ruderal flora (H= 43.10%, T= 36.55%). The subdominant presence of therophytes is directly correlated with the instability of the ruderal habitats caused by the anthropogenic activities.The analysis of ecological indices for five main ecological factors (light, temperature, humidity, soil reaction and nutritiens) has shown dominance of plants preferring semi-open to open habitats, mesothermal and thermophylic habitats (regarding their termal regime), submesophyte to subxerophyte habitats (regarding their water regime), mostly neutral to low alkaline soil reaction and oligo-mesotrophic habitats, regarding their nutritien status. Comparing the ruderal flora of Kičevo with other similar sized cities in the region (Žabljak, Loznica, Smederevska Palanka and Kosovska Mitrovica), we found the highest index of similarity (0.81) between the cities of Kičevo and Kosovska Mitrovica.
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