D 2008

Which factors determine plant invasions in vegetation of man-made habitats in the Czech Republic?

SIMONOVA, Deana and Zdeňka LOSOSOVÁ

Basic information

Original name

Which factors determine plant invasions in vegetation of man-made habitats in the Czech Republic?

Name in Czech

Jaké faktory určují invadovanost vegetace na antropogenních stanovištích v České republice?

Authors

SIMONOVA, Deana (203 Czech Republic, guarantor) and Zdeňka LOSOSOVÁ (203 Czech Republic)

Edition

Bonn, Urban biodiversity & Design, Book of Abstracts, Third Conference of the Competence Network Urban Ecology, p. 218-218, 1 pp. 2008

Publisher

Bundesamt für Naturschutz (BfN)

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/08:00024730

Organization unit

Faculty of Science

Keywords in English

plant invasion; archaeophytes; neophytes; Czech Republic; regression tree

Tags

International impact
Změněno: 26/5/2008 07:36, Mgr. Deana Láníková, Ph.D.

Abstract

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.

In Czech

Pomocí modelů regresních stromů bylo zkoumáno zastoupení archeofytů a neofytů v jednotlivých typech synantropní vegetace v České republice.

Links

GA206/05/0020, research and development project
Name: Vegetace České republiky: formalizovaná typizace, monografie a expertní systém
Investor: Czech Science Foundation, Vegetation of the Czech Republic: formalized typology, monograph and expert system
MSM0021622416, plan (intention)
Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase
Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time