The Convention on Biological Diversity (CBD) aims at the conservation of all three levels of biodiversity, that is, 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 hypothesised 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.
Taberlet, P., Zimmermann, N. E., Englisch, T., Tribsch, A., Holderegger, R., Alvarez, N., Niklfeld, H., Coldea, G., Mirek, Z., Moilanen, A., Ahlmer, W., Bona, E., Bovio, M., Choler, P., Cieslak, E., Colli, L., Cristea, V., Dalmas, J. P., Frajman, B., Garraud, L., Gaudeul, M., Gielly, L., Gutermann, W., Jogan, N., Kagalo, A. A., Korbecka, G., Küpfer, P., Lequette, B., Letz, D. R., Manel, S., Mansion, G., Marhold, K., Martini, F., Negrini, R., Niño, F., Paun, O., Pellecchia, M., Perico, G., Piekos Mirkowa, H., Prosser, F., Puscas, M., Ronikier, M., Scheuerer, M., Schneeweiss, G. M., Schönswetter, P., Schratt Ehrendorfer, L., Schüpfer, F., Selvaggi, A., Steinmann, K., Thiel Egenter, C., Van Loo, M., Winkler, M., Wohlgemuth, T., Wraber, T., Gugerli, F., Ajmone Marsan, P., Genetic diversity in widespread species is not congruent with species richness in alpine plant communities, <<ECOLOGY LETTERS>>, 2012; 15 (12): 1439-1448. [doi:10.1111/ele.12004] [http://hdl.handle.net/10807/41459]
Genetic diversity in widespread species is not congruent with species richness in alpine plant communities
Colli, Licia;Negrini, Riccardo;Ajmone Marsan, Paolo
2012
Abstract
The Convention on Biological Diversity (CBD) aims at the conservation of all three levels of biodiversity, that is, 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 hypothesised 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.