Co-ordinating Editor: Dr. Ingolf Kühn.
Differences in trait compositions between rocky natural and artificial habitats
Article first published online: 14 JAN 2010
© 2010 International Association for Vegetation Science
Journal of Vegetation Science
Volume 21, Issue 3, pages 520–530, June 2010
How to Cite
Lososová, Z. and Láníková, D. (2010), Differences in trait compositions between rocky natural and artificial habitats. Journal of Vegetation Science, 21: 520–530. doi: 10.1111/j.1654-1103.2009.01160.x
- Issue published online: 13 APR 2010
- Article first published online: 14 JAN 2010
- Received 19 May 2009; Accepted 26 November 2009.
- Czech Republic;
- Ellenberg indicator values;
- Regression tree model;
Question: What are the differences in trait compositions that enable native plants to colonise comparable natural and man-made habitats? Are these traits independent of phylogenetic relationships between species?
Location: Czech Republic.
Methods: The relative importance of biological, ecological and distributional traits of native species was studied, using a dataset of 75 species growing in rock and wall habitats in the Czech Republic. Species preferences for individual habitats due to climatic conditions and proportions of different vegetation types in their surroundings were partialled out using partial canonical correspondence analysis. The pattern of plant traits along a gradient from natural rock habitats to secondary wall habitats was analysed using regression trees and generalized linear models with and without phylogenetic correction.
Results: The most common native species colonising rock habitats are phanerophytes, mostly woody juveniles, with a CSR life strategy and most are adapted to epizoochory. Summer green leaves, annual life span, CR life strategy, reproduction mostly by seeds and dispersal by ants are all traits positively associated with the ability of species to colonise wall habitats. These species are also characterised by their high demand for nutrients, temperature, base-rich substrates and light. Biological and ecological traits are more important for colonising new habitats than traits related to species dispersal ability or phylogenetic relationships between species. Biological and ecological traits alone explained 29.3% of variability in the species dataset, while dispersal characteristics and phylogeny alone explained 9.1% and 4.8%, respectively.
Conclusions: We outline how the process of environmental filtering determines native species assemblages and identify a set of species traits that enable them to persist in particular habitats. We conclude that although urbanisation generally results in loss of natural habitats, there are new, man-made habitats potentially suitable for native species.