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Monitoring bryophytes and lichens dynamics in sand dunes: example on the French Atlantic coast
Jun, R.; Rozé, F. (2005). Monitoring bryophytes and lichens dynamics in sand dunes: example on the French Atlantic coast, in: Herrier, J.-L. et al. (Ed.) Proceedings 'Dunes and Estuaries 2005': International Conference on nature restoration practices in European coastal habitats, Koksijde, Belgium 19-23 September 2005. VLIZ Special Publication, 19: pp. 291-313
In: Herrier, J.-L. et al. (Ed.) (2005). Proceedings 'Dunes and Estuaries 2005': International Conference on nature restoration practices in European coastal habitats, Koksijde, Belgium 19-23 September 2005. VLIZ Special Publication, 19. Vlaams Instituut voor de Zee (VLIZ): Oostende. XIV, 685 pp., more
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, more

Available in Authors 
Document type: Conference paper

Keywords
    Communities; Communities; Communities; Functional groups; Management; Succession; Marine

Authors  Top 
  • Jun, R.
  • Rozé, F.

Abstract
    Bryophytes and lichens communities growing on nine non-forested coastal dunes along the Atlantic seaboard of France were studied from vegetation surveys during three years. Coastal dune systems provide opportunities for the study of plant successions and colonisation processes. The distribution of species and the relationships between bryophytes and lichens versus pedologic factors has been investigated on 1x1m permanent plots and were analysed by multivariate analyses. This study has shown that the different species are distributed in five groups in the different dune habitats. These groups are composed with several Mediterraneo-Atlantic species which distinguished them from other communities described in bryophytes and lichens successions in Europe. The significative relationships between the five groups and pedologic factors such as pH-water, percentage of total calcium and total nitrogen permit to evaluate the chemical variations of the soil along the dune-transect. The knowledge of relationships between the responses of the species and the abiotic variations of the soil determine functional groups. The monitoring of these functionnal groups is a good tool to understand evolutionary processes of dune-ecosystems and their management.

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