Hydrobiologia

, Volume 691, Issue 1, pp 147–156

Can coastal biodiversity measured in four Mediterranean sites be representative of the region? A test for the robustness of the NaGISA protocol by using the hard substrate syllid (Annelida, Polychaeta) taxo-communities as a surrogate

  • Georgios Chatzigeorgiou
  • Sarah Faulwetter
  • Eduardo López
  • Rafael Sardá
  • Christos Arvanitidis
Primary Research Paper

DOI: 10.1007/s10750-012-1065-5

Cite this article as:
Chatzigeorgiou, G., Faulwetter, S., López, E. et al. Hydrobiologia (2012) 691: 147. doi:10.1007/s10750-012-1065-5

Abstract

The global NaGISA (Natural Geography in Shore Areas) initiative focusing on long-term monitoring of coastal biodiversity has recently been expanded to the Mediterranean. On the basis of datasets from four Mediterranean hard substrate sites and by using the most abundant polychaete family (Syllidae), two questions are addressed in this study: (a) Is the biodiversity sampled in the two NaGISA sites, based on the family Syllidae, representative of the regional one of the Mediterranean Sea? (b) Are local syllid taxo-communities assembled at random from the regional species pool? Randomisation tests determining to what extent local species lists and their phylogenetic relationships are assembled at random from a regional one showed that at small observational scales (e.g. replicate units, depths) the phylogenetic diversity is assembled at random from the one known to exist locally. It is assumed, therefore, that local processes here have a stronger influence on community assembly than historical-evolutionary processes. The latter is in accordance with previous results derived from using polychaetes to test the same hypotheses at a pan-European level. Local syllid biodiversity in the western Mediterranean is a random subset of the Mediterranean one, whereas that of the NaGISA sites in the eastern Mediterranean is only under certain conditions. Therefore, the currently observed biodiversity of the Mediterranean sites can be considered as representative of that of the entire regional sea only under certain assumptions, as far as the syllid taxo-communities are concerned, demonstrating the potential of the taxon as a surrogate of the polychaete biodiversity.

Keywords

Polychaeta Syllidae Mediterranean NaGISA Taxonomic distinctness Biodiversity surrogate Community assembly 

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Georgios Chatzigeorgiou
    • 1
    • 5
  • Sarah Faulwetter
    • 2
    • 5
  • Eduardo López
    • 3
  • Rafael Sardá
    • 4
  • Christos Arvanitidis
    • 5
  1. 1.Department of BiologyUniversity of CreteHeraklion, CreteGreece
  2. 2.Department of Zoology-Marine Biology, Faculty of BiologyNational and Kapodestrian University of AthensAthensGreece
  3. 3.Laboratorio de Biología Marina, Departamento de Biología (Zoología), Facultad de CienciasUniversidad Autónoma de MadridMadridSpain
  4. 4.Centre d’Estudis Avançats de Blanes (CEAB)Consejo Superior Investigaciones Científicas (CSIC)Blanes, GironaSpain
  5. 5.Institute of Marine Biology and GeneticsHellenic Centre for Marine ResearchHeraklion, CreteGreece

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