Publication details

Diversity of wetland vegetation in the Bulgarian high mountains, main gradients and context-dependence of the pH role



Year of publication 2006
Type Article in Periodical
Magazine / Source Plant Ecology
MU Faculty or unit

Faculty of Science

Field Ecology
Keywords Altitude; Balkan Peninsula; Fen; Floristic elements; Ordination; Plant communities; Subalpine spring; Water conductivity
Description We fill a gap in understanding wetland vegetation diversity and relationship with environmental determinants in Bulgarian high mountains. A total of 615 phytosociological samples were taken from springs, mires, wet meadows and tall-forb habitats throughout Bulgaria, of which 234 releve s are from mire and spring vegetation above timberline. The vegetation was classified by TWINSPAN and the resulting vegetation types were reproduced by the formal definitions using the combination of Cocktail species groups based on phicoefficient of joint co-occurrence of the species. The gradient structure of the vegetation was revealed by DCA and by CCA with forward selection of environmental factors. The major determinants of vegetation variation strongly differ above and below the timberline and likewise between springs and fens.
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