Urban Ecosystems

, Volume 20, Issue 5, pp 1135–1140 | Cite as

Urban ornamental trees: a source of current invaders; a case study from a European City

  • Natálie Čeplová
  • Zdeňka Lososová
  • Veronika Kalusová
Article

Abstract

Human made habitats are considered to be important hotspots of biodiversity of native as well as alien plant species. Due to high propagule pressure caused by human activities they serve as a source of introduction of alien plant species. We used the database of planted ornamental trees and shrubs for Brno, Czech Republic, to determine the significance of introduction effort given by intensity of planting as a factor in woody plant naturalization. Of all planted woody taxa, 15% were recognized as spontaneously growing in the urban area and there was a significant relationship between the number of planted individuals and the ability of a species to spontaneously occur in the urban area. The most often spontaneously escaping species originated in Europe (55%), followed by neophytes from North America (21%) and Central and Eastern Asia (14%). Although only a minor portion of planted woody species is able to escape from cultivation, this still could represent a potential risk for the native vegetation.

Keywords

Archaeophytes Europe Invasive biology Native species Neophytes Propagule pressure 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Botany and Zoology, Faculty of ScienceMasaryk UniversityBrnoCzech Republic
  2. 2.Department of Biology, Faculty of EducationMasaryk UniversityBrnoCzech Republic

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