1. Performance, genetic and ecological insights for the conservation of the endangered large pink, Dianthus superbus L. (Caryophyllaceae) in semi-natural grassland
- Author
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Eugénie Schwoertzig, Marine Pouvreau, Michel Hoff, Laurent Hardion, Isabelle Combroux, Julie Nguefack, Laboratoire Image, Ville, Environnement (LIVE), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Hydrologie et de Géochimie de Strasbourg (LHyGeS), Ecole et Observatoire des Sciences de la Terre (EOST), and Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
0106 biological sciences ,0301 basic medicine ,Conservation genetics ,geography.geographical_feature_category ,biology ,business.industry ,Ecology ,Endangered species ,Biodiversity ,Caryophyllaceae ,Dianthus superbus ,Plant Science ,[SDV.BID]Life Sciences [q-bio]/Biodiversity ,15. Life on land ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Grassland ,03 medical and health sciences ,030104 developmental biology ,Geography ,Agriculture ,Threatened species ,business - Abstract
The traditional management of hay meadows has allowed them to maintain a notable part of biodiversity currently threatened by recent changes in agricultural uses. In the North Eastern region of France, the large pink, Dianthus superbus L. (Caryophyllaceae), mainly grows in hay meadows, and its protected status implies a conservation strategy merging information about its demography, its genetic diversity and its ecology. This study has revealed that the population size of D. superbus is correlated with the trophic status of meadows, with a decrease from mesotrophic to eutrophic meadows. No relation has been established between population size and habitat size, spatial isolation or habitat connectivity. Moreover, AFLPs genetic fingerprints indicated equivalent genetic diversities among meadows, without impact of population size or habitat characteristics. The absence of genetic structure and the lack of population differentiation suggest a large genetic admixture at the regional scale. The most crucial issue for the conservation of D. superbus in the North Eastern region of France seems to be the modification of its habitat due to the eutrophication of hay meadows.
- Published
- 2019
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