2008
Which factors determine plant invasions in vegetation of man-made habitats in the Czech Republic?
SIMONOVA, Deana a Zdeňka LOSOSOVÁZákladní údaje
Originální název
Which factors determine plant invasions in vegetation of man-made habitats in the Czech Republic?
Název česky
Jaké faktory určují invadovanost vegetace na antropogenních stanovištích v České republice?
Autoři
SIMONOVA, Deana (203 Česká republika, garant) a Zdeňka LOSOSOVÁ (203 Česká republika)
Vydání
Bonn, Urban biodiversity & Design, Book of Abstracts, Third Conference of the Competence Network Urban Ecology, od s. 218-218, 1 s. 2008
Nakladatel
Bundesamt für Naturschutz (BfN)
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/08:00024730
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
plant invasion; archaeophytes; neophytes; Czech Republic; regression tree
Příznaky
Mezinárodní význam
Změněno: 26. 5. 2008 07:36, Mgr. Deana Láníková, Ph.D.
V originále
Factors determining the invasibility of different types of anthropogenic vegetation were studied in the Czech Republic. A data set of 3420 vegetation plots recorded between 1945 and 2005 was used. A set of climatic variables, propagule pressure, and local habitat conditions was obtained for each plot. All species were classified as native, archaeophytes, and neophytes and their relative proportion was calculated for each plot. Regression tree models were used to determine the ecological characteristics of the most invasible man-made habitats in the Czech Republic. The plots contained on average 31.9% archaeophytes and 7.3% neophytes. Both archaeophytes and neophytes were found predominantly in strongly disturbed habitats with a high nutrient supply located at low elevations in warmer climatic areas of the Czech Republic. The highest proportion of alien species was found in annual ruderal vegetation. Archaeophytes prevailed in alliances Malvion neglectae and Bromo-Hordeion murini, while neophytes were mainly found in Salsolion ruthenicae alliance. Archaeophytes are more influenced by local habitat conditions and preferentially colonize sunny and dry man-made habitats with higher soil reaction. Neophytes have no special preferences for local habitat conditions and their highest proportion was found mainly in disturbed habitats at low elevations.
Česky
Pomocí modelů regresních stromů bylo zkoumáno zastoupení archeofytů a neofytů v jednotlivých typech synantropní vegetace v České republice.
Návaznosti
| GA206/05/0020, projekt VaV |
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| MSM0021622416, záměr |
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