Publications des scientifiques de l'IRD

Fauvelot Cécile, Bertozzi F., Costantini F., Airoldi L., Abbiati M. (2009). Lower genetic diversity in the limpet Patella caerulea on urban coastal structures compared to natural rocky habitats. Marine Biology, 156 (11), p. 2313-2323. ISSN 0025-3162.

Titre du document
Lower genetic diversity in the limpet Patella caerulea on urban coastal structures compared to natural rocky habitats
Année de publication
2009
Type de document
Article référencé dans le Web of Science WOS:000270180900010
Auteurs
Fauvelot Cécile, Bertozzi F., Costantini F., Airoldi L., Abbiati M.
Source
Marine Biology, 2009, 156 (11), p. 2313-2323 ISSN 0025-3162
Human-made structures are increasingly found in marine coastal habitats. The aim of the present study was to explore whether urban coastal structures can affect the genetic variation of hard-bottom species. We conducted a population genetic analysis on the limpet Patella caerulea sampled in both natural and artificial habitats along the Adriatic coast. Five microsatellite loci were used to test for differences in genetic diversity and structure among samples. Three microsatellite loci showed strong Hardy-Weinberg disequilibrium likely linked with the presence of null alleles. Genetic diversity was significantly higher in natural habitat than in artificial habitat. A weak but significant differentiation over all limpet samples was observed, but not related to the type of habitat. While the exact causes of the differences in genetic diversity deserve further investigation, these results clearly point that the expansion of urban structures can lead to genetic diversity loss at regional scales.
Plan de classement
Ecologie, systèmes aquatiques [036]
Localisation
Fonds IRD [F B010048215]
Identifiant IRD
fdi:010048215
Contact