Biological Invasions

, Volume 13, Issue 12, pp 2691–2701

Ecological preferences of alien plant species in North-Eastern Germany

Original Paper

DOI: 10.1007/s10530-011-9939-4

Cite this article as:
Jansen, F., Ewald, J. & Zerbe, S. Biol Invasions (2011) 13: 2691. doi:10.1007/s10530-011-9939-4

Abstract

The large, comprehensive vegetation database of Mecklenburg-Vorpommern/NE Germany with 51,328 relevés allowed us to study an entire regional flora of 133 non-native plants (NNP, immigration after 1492 AD) with regard to their preferences to all kinds of habitats and along different ecological gradients. For each relevé, we computed average Ellenberg indicator values (EIV) for temperature, light, moisture, reaction, nutrients and salt as well as plant strategy type weights. We partitioned the dataset into relevés with and without occurrences of NNP and compared them with respect to the relative frequencies of EIVs and strategy type weights. We identified deviations from random differences by testing against permuted indicator values. To account for bias in EIV between community types, NNP preferences were differentiated for 34 phytosociological classes. We tested significance of preferences for the group of NNP as a whole, as well as for single NNP species within the entire dataset, as well as differentiated by phytosociological classes and formations. NNP as a group prefer communities with high EIVs for temperature and nutrients and low EIVs for moisture. They avoid communities with low EIV for reaction and high EIV for salt. NNP prefer communities with high proportions of ruderal and low proportion of stress strategists. The differentiation by phytosociological classes reinforces the general trends for temperature, nutrients, moisture, R and S strategy types. Nevertheless, preferences of single species reveal that NNP are not a congruent group but show individualistic ecological preferences.

Keywords

Co-occurrenceEllenberg indicator valuesLevel of invasionPhytosociological databaseVegetation changeSuccessionStrategy types

Abbreviations

EIV

Ellenberg indicator value

NP

Native plant

NNP

Non native plant

Supplementary material

10530_2011_9939_MOESM1_ESM.pdf (204 kb)
Supplementary material 1 (PDF 204 kb)
10530_2011_9939_MOESM2_ESM.pdf (79 kb)
Supplementary material 2 (PDF 78 kb)
10530_2011_9939_MOESM3_ESM.pdf (46 kb)
Supplementary material 3 (PDF 46 kb)
10530_2011_9939_MOESM4_ESM.pdf (702 kb)
Supplementary material 4 (PDF 701 kb)

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Institute of Botany and Landscape EcologyUniversity of GreifswaldGreifswaldGermany
  2. 2.Faculty of ForestryUniversity of Applied Sciences Weihenstephan-TriesdorfFreisingGermany
  3. 3.Faculty of Science and TechnologyFree University of Bozen–Bolzano, Piazza Università 5BolzanoItaly