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Chorological spectra of arable weed vegetation types in the Czech Republic

Basic information
Original title:Chorological spectra of arable weed vegetation types in the Czech Republic
Authors:Zdeňka Lososová, Vít Grulich
Further information
Citation:LOSOSOVÁ, Zdeňka a Vít GRULICH. Chorological spectra of arable weed vegetation types in the Czech Republic. Phytocoenologia, Berlin-Stuttgart, 2009, roč. 39, č. 2, s. 235-252. ISSN 0340-269X.Export BibTeX
@article{839184,
author = {Lososová, Zdeňka and Grulich, Vít},
article_location = {Berlin-Stuttgart},
article_number = {2},
keywords = {alien plants; alliances; Cocktail method; phytosociology; range type},
language = {eng},
issn = {0340-269X},
journal = {Phytocoenologia},
title = {Chorological spectra of arable weed vegetation types in the Czech Republic},
volume = {39},
year = {2009}
}
Original language:English
Field:Botany
Type:Article in Periodical
Keywords:alien plants; alliances; Cocktail method; phytosociology; range type

A data set of 2,743 phytosociological relevés was used for a comparison of the basic chorological characteristics of the main vegetation types of weed vegetation in the Czech Republic. All relevés were classified by the cocktail method into the alliances: Caucalidion, Scleranthion annui, Veronico-Euphorbion, Oxalidion fontanae, Spergulo-Erodion and Arnoseridion minimae. The proportions of native species, archaeophytes and neophytes, as well as the proportion of species with particular distribution range types were calculated for each relevé. The weed vegetation in the data set contained 560 species: 38.3 % of them were native, 56.2 % were archaeophytes and 5.5 % were neophytes. The highest proportion of natives was found for the weed vegetation of poor sandy soils (alliance Arnoseridion minimae) and of humid areas (alliance Oxalidion fontanae). The highest proportion of archaeophytes was found in the thermophilous weed vegetation of Caucalidion and Spergulo-Erodion alliances, and the highest proportion of neophytes in Spergulo-Erodion alliance. Czech weed vegetation is predominantly composed of species of Euroasian temperate range type. These species prevail in weed vegetation of alliances Scleranthion annui and Oxalidion fontanae. Macaronesian-Mediterranean range types and Oriental-Turcestani-Mediterranean range types make up 25-38 % of all weed species growing in the Czech Republic. These Mediterranean species dominate in the weed vegetation of alliances Caucalidion and Arnoseridion minimae, followed by alliances Veronico-Euphorbion and Spergulo-Erodion. The proportion of central European species is similar (about 10 % of species) in all the compared vegetation types except Spergulo-Erodion, where these species are rarer (only 5 %). Other chorological types are scarcely present in the weed vegetation of the Czech Republic.

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