Abstract
Floristic research investigating the presence and phytocoenological differentiation of ruderal vegetation, and how it is conditioned structurally and anthropogenically, was undertaken over a period of several years (2007-10) in the south Srem region. The ruderal flora of the research area comprised 249 plants categorized into 63 families, of which the most frequent were: Asteraceae (36), Poaceae (29), Fabaceae (18), Lamiaceae (15), Polygonaceae (15), Brassicaceae (11) and Rosaceae (11). Three ruderal communities are analyzed in this work: Asclepietum syriacae Kojic et al., 2004, as well as Chenopodio-Ambrosietum artemisiifoliae ass. nova and Amorpho-Typhaetum ass. nova, which are described for the first time. It was established that the level of moisture at the habitat, anthropogenic factors, and the immediate proximity to cultivated areas had the most pronounced effect on the differentiation of the researched vegetation.
Highlights
Ruderal vegetation represents a highly dynamic floristic/vegetational complex, which develops most often in human settlements, and in other environments which are permanently or temporarily exposed to anthropogenic influences
Anthropogenic factors are of key significance in the formation, survival, distribution, diversity and dynamics of this type of vegetation
The recorded plant species were established on the basis of several literary sources (Josifović, 1970-1980; Javorka and Chapody, 1975; Tutin, 1964-1980; Aichele and GolteBechtle, 1997; Grey-Wilson and Blamey, 1979), and their abundance in the analyzed relevés was determined by the Westhoff and van der Maarel combined abundance/cover scale, which is an entirely numerical method and, as such, is completely applicable in the mathematical processing of data (Westhoff and van der Maarel, 1973)
Summary
Ruderal vegetation represents a highly dynamic floristic/vegetational complex, which develops most often in human settlements, and in other environments which are permanently or temporarily exposed to anthropogenic influences. The first significant findings on ruderal flora and vegetation in Serbia dates back to the early 20th century when Adamović (1909) described the different formations of ruderal and segetal plants in the central Balkans: at rubbish dumps, along roadsides and in abandoned fields. This type of vegetation was later the subject of research by numerous botanists (Slavnić, 1951; Šajinović, 1968; Jovanović, 1993, 1994; Stanković-Kalezić, 2007, Stanković-Kalezić et al 2008, 2009; Kojić et al, 2004; Perišić et al, 2004; Jovanović and Mitrović, 1998; Prodanović et al, 2008; Pajazitaj, 2009; Jarić, 2009). In addition to the extensive research into the flora and vegetation of major cities in the world (Erhart, 2002; Sukopp, 2002; Brandes, 2004), a significant number of researchers have dealt with the problems of the diversity of ruderal flora and vegetation along roadsides (Heindl and Ulman, 1991; Wrobel, 2006), within large agrarian complexes (Prach, et al, 2001), and in the vicinity of large forest complexes (Akbar et al, 2003)
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