Publication details
Jaké faktory podmiňují rostlinné invaze na antropogenních stanovištích v České republice?
| Title in English | Which factors determine plant invasions in vegetation of man-made habitats in the Czech Republic? |
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| Authors | |
| Year of publication | 2007 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | A data set of 3420 vegetation plots recorded between 1945 and 2005 was used for analysis of invasibility of different types of anthropogenic vegetation in the Czech Republic. A set of climatic variables, propagule pressure, and local habitat conditions was obtained for each plot. Relative proportion of natives, archaeophytes, and neophytes 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. Generally, alien species (both archaeophytes and neophytes) were found predominantly in strongly disturbed habitats with a high nutrient supply with location 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 represented in Salsolion ruthenicae alliance. Archaeophytes are more influenced by local abiotic conditions and preferentially colonize sunny and dry man-made habitats with rather higher soil reaction. Neophytes have no special preferences for local habitat conditions and they are found mainly in disturbed habitats at low elevations. |
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