caa a22 4500 463167791 CHVBK 20180406164804.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10530-006-9003-y doi (NATIONALLICENCE)springer-10.1007/s10530-006-9003-y Limiting factors for seedling emergence and establishment of the invasive non-native Rosa rugosa in a coastal dune system [Elektronische Daten] [Johannes Kollmann, Lise Frederiksen, Peter Vestergaard, Hans Bruun] The relative importance of seed, habitat and microhabitat limitation has rarely been investigated for invasive non-native species, although this is critical for their effective management and for predicting future range expansion. Rosa rugosa is an abundant non-native shrub in coastal habitats of NW Europe; it is common along the Baltic coast but more scarce in exposed dunes of the North Sea. To investigate whether invasion of exposed dunes is limited by seed, habitat and microhabitat limitation, seedling emergence and establishment were examined in a factorial sowing, transplant and disturbance experiment. Twenty plots were randomly placed in each of five dune habitats (white dune, Empetrum dune, grey dune, outer dune heath, inner dune heath), and studied over 2years. Seedling emergence in control subplots was zero in all habitats, whereas 96% and 98% of the undisturbed and disturbed seeded subplots produced seedlings. Disturbance had a positive effect on emergence and subsequent survival in white dune, outer and inner dune heath. Seedling survival and growth, and growth of transplanted seedlings, were markedly lower in grey dune. These findings indicate that establishment of R. rugosa is seed-limited in coastal dune habitats, and that the species is able to establish in both active and fixed dunes once seeds have arrived. Although differential seedling emergence and growth indicate that habitats differ in their degree of invasion susceptibility by R. rugosa, the positive influence of small-scale disturbance suggests microhabitat limitation in some dune habitats as well. Dune management should aim to reduce seed production and dispersal of R. rugosa in near-natural sites, and anthropogenic changes of habitat dynamics should be prevented. Springer-Verlag, 2006 Disturbance nationallicence Dune heath nationallicence Empetrum dune nationallicence Grey dune nationallicence Seed addition nationallicence Seed limitation nationallicence Site limitation nationallicence Transplant experiment nationallicence White dune nationallicence Kollmann Johannes Department of Ecology, Royal Veterinary and Agricultural University, Rolighedsvej 21, 1958, Frederiksberg C., Denmark aut Frederiksen Lise Institute of Biology, Department of Terrestrial Ecology, University of Copenhagen, Øster Farimagsgade 2D, 1353, Copenhagen K., Denmark aut Vestergaard Peter Institute of Biology, Department of Terrestrial Ecology, University of Copenhagen, Øster Farimagsgade 2D, 1353, Copenhagen K., Denmark aut Bruun Hans Department of Ecology, Section of Plant Ecology and Systematics, Lund University, Ecology Building, 223 62, Lund, Sweden aut Biological Invasions Kluwer Academic Publishers 9/1(2007-01-01), 31-42 1387-3547 9:1<31 2007 9 10530 https://doi.org/10.1007/s10530-006-9003-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10530-006-9003-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kollmann Johannes Department of Ecology, Royal Veterinary and Agricultural University, Rolighedsvej 21, 1958, Frederiksberg C., Denmark aut NATIONALLICENCE 700 1- Frederiksen Lise Institute of Biology, Department of Terrestrial Ecology, University of Copenhagen, Øster Farimagsgade 2D, 1353, Copenhagen K., Denmark aut NATIONALLICENCE 700 1- Vestergaard Peter Institute of Biology, Department of Terrestrial Ecology, University of Copenhagen, Øster Farimagsgade 2D, 1353, Copenhagen K., Denmark aut NATIONALLICENCE 700 1- Bruun Hans Department of Ecology, Section of Plant Ecology and Systematics, Lund University, Ecology Building, 223 62, Lund, Sweden aut NATIONALLICENCE 773 0- Biological Invasions Kluwer Academic Publishers 9/1(2007-01-01), 31-42 1387-3547 9:1<31 2007 9 10530 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer