0385693 - BÚ 2013 RIV NL eng J - Journal Article
Lososová, Z. - Chytrý, M. - Tichý, L. - Danihelka, Jiří - Fajmon, K. - Hájek, O. - Kintrová, K. - Láníková, Deana - Otýpková, Z. - Řehořek, V.
Biotic homogenization of Central European urban floras depends on residence time of alien species and habitat types.
Biological Conservation. Roč. 145, č. 1 (2012), s. 179-184. ISSN 0006-3207. E-ISSN 1873-2917
Institutional research plan: CEZ:AV0Z60050516
Institutional support: RVO:67985939
Keywords : archaeophytes * beta diversity * biological invasions
Subject RIV: EF - Botanics
Impact factor: 3.794, year: 2012

Spread of alien species may result in biotic homogenization, i.e. increasing similarity between biotas of different areas. We examined whether the flora of Central European cities is becoming homogenized because of the spread of alien species, whether the contribution of aliens to homogenization depends on residence time, and whether habitats under more intense human pressure are more homogenized. Using floristic composition data from a standardized sample of 1-ha plots located in seven habitat types in 32 cities in Central Europe, Belgium and the Netherlands, we compared homogenization effects of archaeophytes (pre-AD 1500 aliens) and neophytes (post-AD 1500 aliens) using rarefaction curves, Jaccard dissimilarity index, Mantel tests and homogenization index. We found that archaeophytes contributed to homogenization and neophytes to differentiation of floras among cities, but generally the spread of alien species caused differentiation.
Permanent Link: http://hdl.handle.net/11104/0007421