February 1st to 5th 2016
Olhão, Portugal
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Lessons from Pacific islands: marine protected spaces help to control the spreading of exotic species.

Oral Presentation
Biological Invasions
Thursday, February 4, 2016 -
17:15 to 17:30

Ardura, A. 1 Juanes, F. 2 Planes, S. 3 García-Vázquez, E. 4

1USR3278-CRIOBE-CNRS-EPHE, Laboratoire d'excellence "CORAIL", Université de Perpignan-CBETM. 58 Rue Paul Alduy. 66860-Perpignan CEDEX, France
2University of Victoria, Canada
3USR3278-CRIOBE-CNRS-EPHE Laboratoire d'excellence "CORAIL"
4University of Oviedo, Spain

One of the more dangerous threats to biodiversity today is the uncontrolled expansion of non-indigenous species. These can become biological invasions, especially in degraded or human-modified environments. Protection of marine spaces, principally reducing their uses and the human activities carried out inside, is sought to protect biodiversity. The benefits of marine protected areas (MPA) has been proved at varied levels, but their effect on NIS control has been insufficiently addressed by now. In this study we have used two Pacific islands of very different size, type of human uses and climate as a model, and treated them equally for analysis of impacts and protection scaling. Mollusks were chosen as taxonomic group model because they contain a great proportion of the recognized marine invasive species. We have employed genetic Barcoding for ascertaining the species to avoid taxonomic incertitude. We have found strong and significant protective effect of MPA against NIS, likely due to a combination of less habitat degradation and a higher occupation of niches by native species.

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