Wetlands

, Volume 30, Issue 6, pp 1097–1105 | Cite as

Inundation Frequency Determines the Post-Pioneer Successional Pathway in a Newly Created Salt Marsh

  • Julien Pétillon
  • Reza Erfanzadeh
  • Angus Garbutt
  • Jean-Pierre Maelfait
  • Maurice Hoffmann
Article

Abstract

The effect of inundation frequency on plant community composition, species turnover, total and growth form cover, species richness, and abundance of individual species was investigated in a newly created salt marsh (Belgium) with a gradient of inundation frequencies from 0.01% to 100%. Cover of all plant species was estimated in 119 permanent 2 × 2 m plots along seven randomly chosen transects perpendicular to the main inundation gradient in 2003, 2005, and 2007. Plant composition change clearly varied along the inundation frequency gradient. The cover of annual species increased at a higher rate at higher inundation frequencies, while cover of perennials increased at higher rate at lower inundation frequencies. Species richness and the abundance of most species increased over time, indicating general absence of competitive exclusion among species. Conversely, the abundance and frequency of Atriplex spp., Chenopodium spp., and Salsola kali strongly decreased over time, indicating their early successional character. Frequent inundations hampered plant species turnover because of the low number of species which can tolerate that environmental condition. The appearance of communities dominated by Elymus athericus or Salicornia procumbens strongly increased over time, leading to a stronger separation of plant communities and an appearance of typical salt-marsh zonation.

Keywords

Plant composition Restoration Species turnover Succession 

Notes

Acknowledgments

R.E. was partially funded by a grant from the Ministry of Science, Research and Technology (Islamic Republic of Iran). We thank the Agency for Nature and Forest for permission to use the IJzermonding nature reserve for this research, and Vincent Woodhead and three anonymous referees for constructive comments on earlier drafts of the manuscript.

Supplementary material

13157_2010_115_MOESM1_ESM.pdf (217 kb)
ESM 1(PDF 216 kb)

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Copyright information

© Society of Wetland Scientists 2010

Authors and Affiliations

  • Julien Pétillon
    • 1
    • 2
  • Reza Erfanzadeh
    • 1
    • 3
  • Angus Garbutt
    • 4
  • Jean-Pierre Maelfait
    • 1
  • Maurice Hoffmann
    • 1
    • 5
  1. 1.Terrestrial Ecology Unit, Department of BiologyGhent UniversityGhentBelgium
  2. 2.Evolutionary Ecology GroupUniversity of AntwerpAntwerpenBelgium
  3. 3.Faculty of Natural Resources and Marine SciencesTarbiat Modares UniversityTehranIran
  4. 4.NERC Centre for Ecology and Hydrology, BangorEnvironment Centre WalesGwyneddUK
  5. 5.Department of Biodiversity and Natural EnvironmentResearch Institute for Nature and ForestBrusselsBelgium

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