caa a22 4500 475751485 CHVBK 20180406123525.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1023/A:1009800327334 doi (NATIONALLICENCE)springer-10.1023/A:1009800327334 Vulnerability of riparian zones to invasion by exotic vascular plants [Elektronische Daten] [W. Hood, Robert Naiman] We compared the invasibility of riparian plant communities high on river banks with those on floodplain floors for four South African rivers. Analyses of abundant and significant riparian species showed that the floors have 3.1 times more exotic plants than the banks. The percent exotics ranges from 5% to 11% of total species richness for the banks, and from 20% to 30% for the floors. Species richness and percent exotics are negatively correlated for the banks, but not correlated for the floors. Despite great differences in climate, species richness, and landuse history, the percentages of exotic plants in three rivers in the Pacific Northwest of the USA and one river in southwestern France are similar to those in South Africa (24-30% vs. 20-30%, respectively). Furthermore, the high proportions of exotic species in these riparian plant communities are comparable to those reported for vascular plant communities on islands. We conclude that the macro-channel floor regions of the riparian zones of South African rivers are highly vulnerable to invasion by exotic vascular plants. Kluwer Academic Publishers, 2000 Biological invasions nationallicence Exotic species nationallicence Kruger National Park nationallicence Riparian zones nationallicence South African rivers nationallicence Hood W. School of Fisheries, University of Washington, Box 357980, 98195, Seattle, Washington, USA aut Naiman Robert School of Fisheries, University of Washington, Box 357980, 98195, Seattle, Washington, USA aut Plant Ecology Kluwer Academic Publishers 148/1(2000-05-01), 105-114 1385-0237 148:1<105 2000 148 11258 https://doi.org/10.1023/A:1009800327334 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009800327334 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hood W. School of Fisheries, University of Washington, Box 357980, 98195, Seattle, Washington, USA aut NATIONALLICENCE 700 1- Naiman Robert School of Fisheries, University of Washington, Box 357980, 98195, Seattle, Washington, USA aut NATIONALLICENCE 773 0- Plant Ecology Kluwer Academic Publishers 148/1(2000-05-01), 105-114 1385-0237 148:1<105 2000 148 11258 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer