Dark side of the fence: ornamental plants as a source for spontaneous flora of the Czech Republic

0464335 - BÚ 2017 RIV CZ eng J - Journal Article
Pergl, Jan - Sádlo, Jiří - Petřík, Petr - Danihelka, Jiří - Chrtek, Jindřich - Hejda, Martin - Moravcová, Lenka - Perglová, Irena - Štajerová, Kateřina - Pyšek, Petr
Dark side of the fence: ornamental plants as a source for spontaneous flora of the Czech Republic.
Preslia. Roč. 88, č. 2 (2016), s. 163-184. ISSN 0032-7786. E-ISSN 0032-7786
R&D Projects: GA ČR(CZ) GAP504/11/1028; GA ČR(CZ) GA14-15414S; GA ČR GB14-36079G
Grant - others:AV ČR(CZ) AP1002
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:67985939
Keywords : cultivated plants * neutralization * urban areas
Subject RIV: EF - Botanics
Impact factor: 3.000, year: 2016

We studied ornamental plants in the Czech Republic in order to provide detailed information, based on field sampling, on the diversity of taxa grown in cultivation in private gardens. The floristic inventories for 174 sites yielded 1842 taxa of these 76.9% were alien and 420 (22.8%) native. The ornamental flora consisted of not-escaping aliens, escaping aliens and cultivated natives. Most alien ornamentals are native to Asia and Americas. Winter annuals and shrubs are most represented among the commonly planted aliens. The core (persistent) part of the flora comprised 599 taxa (32% of the total number of taxa) and the transient 240 (13%) taxa. The “grey zone” between the two included 1003 taxa (55%). The results reported here provide quantitative insights into the role of horticulture as a major pathway of plant invasions.
Permanent Link: http://hdl.handle.net/11104/0265427