Perennial ruderal vegetation of the Czech Republic: a new vegetation survey
| Authors | |
|---|---|
| Year of publication | 2008 |
| Type | Article in Proceedings |
| Conference | Abstracts and Excursion Guides |
| MU Faculty or unit | |
| Citation | |
| Field | Ecology |
| Keywords | Cocktail method; Artemisietea vulgaris; Czech Republic; ruderal vegetation; classification |
| Description | A high number of vegetation units of perennial ruderal vegetation have been distinguished in the traditional phytosociological system of the Czech Republic (Moravec et al. 1995, Red list of plant communities of the Czech Republic and their endangerment). Due to inconsistent delimitation of these units, which often differed among various authors, the revision of the recent classification system was done. A large data set of relevés was extracted from the Czech National Phytosociological Database and geographically stratified. The procedure of formalized reproduction of an expert-based vegetation classification was applied. By means of the Cocktail method, sociological species groups were defined. Consequently, formal definitions were created using these sociological species groups and also using a dominance of species. Syntaxonomical classification of the ruderal vegetation commonly ranked into the classes Artemisietea vulgaris and Agropyretea repentis was revised. Finally, only one class Artemisietea vulgaris including four alliances (Onopordion acanthii, Dauco-Melilotion, Convolvulo-Agropyrion and Arction lappae) was accepted for the monograph Vegetation of the Czech Republic. In comparison with the last Czech phytosociological survey, 17 associations (instead of 25) were distinguished. Associations with poor floristic differentiation and a disputable occurrence in the country were omitted. Revision of nomenclature of syntaxa was done. |
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