caa a22 4500 475750799 CHVBK 20180406123523.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1009869109179 doi (NATIONALLICENCE)springer-10.1023/A:1009869109179 Variation in species composition and species richness within Phragmites australis dominated riparian zones [Elektronische Daten] [J.P.M. Lenssen, F.B.J. Menting, W.H. Van der Putten, C.W.P.M. Blom] In riparian wetlands total standing crop often fails to account for a significant part of the observed variation in species richness and species composition within communities. In this study, we used abundance of the dominant species instead of total standing crop as the biotic predictor variable and investigated its relationships with species composition and species richness in communities dominated by Phragmites australis (Cav.) Trin. ex Steudel. This was done by measuring soil organic matter content, litter cover and elevation, Phragmites abundance (standing crop and stem density) and species composition in 78 relevés. In addition, we tried to identify the environmental boundaries of Phragmites communities by sampling relevés in neighbouring communities. Two gradients were related to a decline in Phragmites abundance: one gradient, perpendicular to the shoreline, was mainly related to increased elevation and the second gradient ran parallel to the shoreline and was related to increased amounts of soil organic matter. Within the relevés dominated by Phragmites, stem density of Phragmites and litter cover were the only factors significantly related to species composition in the RDA solution. Litter cover and standing crop of the dominant accounted for 64% of the variation in species richness within the Phragmites-dominated community. These results show that dead and living biomass of the dominant species may account for a substantial part of the variation in species composition and species richness within a single community. Kluwer Academic Publishers, 2000 Dominant plant species nationallicence Litter nationallicence Ordination nationallicence Riparian wetlands nationallicence Zonation nationallicence Lenssen J.P.M. Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG, Heteren, the Netherlands aut Menting F.B.J. Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG, Heteren, the Netherlands aut Van der Putten W.H. Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG, Heteren, the Netherlands aut Blom C.W.P.M. Department of Ecology, University of Nijmegen, Toernooiveld 1, 6525 ED, Nijmegen, The Netherlands aut Plant Ecology Kluwer Academic Publishers 147/1(2000-03-01), 137-146 1385-0237 147:1<137 2000 147 11258 https://doi.org/10.1023/A:1009869109179 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009869109179 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lenssen J.P.M. Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG, Heteren, the Netherlands aut NATIONALLICENCE 700 1- Menting F.B.J. Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG, Heteren, the Netherlands aut NATIONALLICENCE 700 1- Van der Putten W.H. Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG, Heteren, the Netherlands aut NATIONALLICENCE 700 1- Blom C.W.P.M. Department of Ecology, University of Nijmegen, Toernooiveld 1, 6525 ED, Nijmegen, The Netherlands aut NATIONALLICENCE 773 0- Plant Ecology Kluwer Academic Publishers 147/1(2000-03-01), 137-146 1385-0237 147:1<137 2000 147 11258 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer