Parallel declines in species and genetic diversity driven by anthropogenic disturbance: a multispecies approach in a French Atlantic dune system.

Détails

Ressource 1Télécharger: 26989439_BIB_B84B11779225.pdf (558.82 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_B84B11779225
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Parallel declines in species and genetic diversity driven by anthropogenic disturbance: a multispecies approach in a French Atlantic dune system.
Périodique
Evolutionary Applications
Auteur(s)
Frey D., Arrigo N., Granereau G., Sarr A., Felber F., Kozlowski G.
ISSN
1752-4571 (Electronic)
ISSN-L
1752-4571
Statut éditorial
Publié
Date de publication
2016
Peer-reviewed
Oui
Volume
9
Numéro
3
Pages
479-488
Langue
anglais
Résumé
Numerous studies assess the correlation between genetic and species diversities, but the processes underlying the observed patterns have only received limited attention. For instance, varying levels of habitat disturbance across a region may locally reduce both diversities due to extinctions, and increased genetic drift during population bottlenecks and founder events. We investigated the regional distribution of genetic and species diversities of a coastal sand dune plant community along 240 kilometers of coastline with the aim to test for a correlation between the two diversity levels. We further quantify and tease apart the respective contributions of natural and anthropogenic disturbance factors to the observed patterns. We detected significant positive correlation between both variables. We further revealed a negative impact of urbanization: Sites with a high amount of recreational infrastructure within 10 km coastline had significantly lowered genetic and species diversities. On the other hand, a measure of natural habitat disturbance had no effect. This study shows that parallel variation of genetic and species diversities across a region can be traced back to human landscape alteration, provides arguments for a more resolute dune protection, and may help to design priority conservation areas.
Mots-clé
biodiversity, coastal conservation, disturbance, habitat loss, sand dunes, species-genetic diversity correlation metapopulation model, urbanization
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/02/2016 18:52
Dernière modification de la notice
20/08/2019 16:26
Données d'usage