Data from: Genetic diversity in widespread species is not congruent with species richness in alpine plant communities
2023-03-31, 2023-03-31
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The Convention on Biological Diversity (CBD) aims at the conservation of all three levels of biodiversity, i.e. ecosystems, species and genes. Genetic diversity represents evolutionary potential and is important for ecosystem functioning. Unfortunately, genetic diversity in natural populations is hardly considered in conservation strategies because it is difficult to measure and has been hypothesized to co-vary with species richness. This means that species richness is taken as a surrogate of genetic diversity in conservation planning, though their relationship has not been properly evaluated. We tested whether the genetic and species levels of biodiversity co-vary, using a large-scale and multi-species approach. We chose the high-mountain flora of the Alps and the Carpathians as study systems and demonstrate that species richness and genetic diversity are not correlated. Species richness thus cannot act as a surrogate for genetic diversity. Our results have important consequences for implementing the CBD when designing conservation strategies.
Arabis alpina L., Saxifraga stellaris L., Saxifraga wahlenbergii Ball, Hedysarum hedysaroides Schinz & Thell. s.l., Androsace obtusifolia All., Festuca supina (= F. airoides) Schur, Festuca carpathica F. Dietr., Gentiana nivalis L., Soldanella pusilla Baum., Gypsophila repens L., Festuca versicolor Tausch s.l., Cerastium uniflorum Clairv., Loiseleuria procumbens (L.) Desv., Juncus trifidus L., Phyteuma betonicifolium Vill. s.l., Geum reptans L., Sempervivum montanum L. s.l., Luzula alpinopilosa (Chaix) Breist., Sesleria caerulea (L.) Ard., Carex sempervirens Vill., Primula minima L., Hornungia alpina (L.) Appel s.l., Ranunculus alpestris L. s.l., Campanula barbata L., Peucedanum ostruthium (L.) W.D. Koch, Rhododendron myrthifolium Schott & Kotschy, Quaternary, alpine vascular plants, Trifolium alpinum L., Campanula alpina Jacq., Phyteuma hemisphaericum L., Phyteuma confusum A. Kern., Veronica baumgartenii Roem. & Schult., Dryas octopetala L., Geum montanum L., Carex firma Mygind, Ligusticum mutellinoides (Cr.) Vill., Hypochaeris uniflora Vill., Campanula serrata (Kit.) Hendrych, Rhododendron ferrugineum L., Cirsium spinosissimum (L.) Scop.