Parallel changes in genetic diversity and species diversity following a natural disturbance.

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Version: Final published version
Serval ID
serval:BIB_4B2FEB086B4C
Type
Article: article from journal or magazin.
Collection
Publications
Title
Parallel changes in genetic diversity and species diversity following a natural disturbance.
Journal
Molecular Ecology
Author(s)
Evanno G., Castella E., Antoine C., Paillat G., Goudet J.
ISSN
1365-294X[electronic]
Publication state
Published
Issued date
2009
Peer-reviewed
Oui
Volume
18
Number
6
Pages
1137-1144
Language
english
Abstract
We examined the spatial and temporal variation of species diversity and genetic diversity in a metacommunity comprising 16 species of freshwater gastropods. We monitored species abundance at five localities of the Ain river floodplain in southeastern France, over a period of four years. Using 190 AFLP loci, we monitored the genetic diversity of Radix balthica, one of the most abundant gastropod species of the metacommunity, twice during that period. An exceptionally intense drought occurred during the last two years and differentially affected the study sites. This allowed us to test the effect of natural disturbances on changes in both genetic and species diversity. Overall, local (alpha) diversity declined as reflected by lower values of gene diversity H(S) and evenness. In parallel, the among-sites (beta) diversity increased at both the genetic (F(ST)) and species (F(STC)) levels. These results suggest that disturbances can lead to similar changes in genetic and community structure through the combined effects of selective and neutral processes.
Keywords
Amplified Fragment Length Polymorphism Analysis, Animals, Biodiversity, Droughts, France, Gastropoda, Genetic Variation, Genetics, Population, Models, Biological, Population Dynamics, Sequence Analysis, DNA
Pubmed
Web of science
Open Access
Yes
Create date
19/02/2009 12:06
Last modification date
20/08/2019 14:59
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