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Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors
Species diversity is important for a range of ecosystem processes and properties, including the resistance to single and multiple stressors. It has been suggested that genetic diversity may play a similar role, but empirical evidence is still relatively scarce. Here, we report the results of a micro...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445582/ https://www.ncbi.nlm.nih.gov/pubmed/23028735 http://dx.doi.org/10.1371/journal.pone.0045007 |
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author | Roger, Fabian Godhe, Anna Gamfeldt, Lars |
author_facet | Roger, Fabian Godhe, Anna Gamfeldt, Lars |
author_sort | Roger, Fabian |
collection | PubMed |
description | Species diversity is important for a range of ecosystem processes and properties, including the resistance to single and multiple stressors. It has been suggested that genetic diversity may play a similar role, but empirical evidence is still relatively scarce. Here, we report the results of a microcosm experiment where four strains of the marine diatom Skeletonema marinoi were grown in monoculture and in mixture under a factorial combination of temperature and salinity stress. The strains differed in their susceptibility to the two stressors and no strain was able to survive both stressors simultaneously. Strong competition between the genotypes resulted in the dominance of one strain under both control and salinity stress conditions. The overall productivity of the mixture, however, was not related to the dominance of this strain, but was instead dependent on the treatment; under control conditions we observed a positive effect of genetic richness, whereas a negative effect was observed in the stress treatments. This suggests that interactions among the strains can be both positive and negative, depending on the abiotic environment. Our results provide additional evidence that the biodiversity-ecosystem functioning relationship is also relevant at the level of genetic diversity. |
format | Online Article Text |
id | pubmed-3445582 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-34455822012-10-01 Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors Roger, Fabian Godhe, Anna Gamfeldt, Lars PLoS One Research Article Species diversity is important for a range of ecosystem processes and properties, including the resistance to single and multiple stressors. It has been suggested that genetic diversity may play a similar role, but empirical evidence is still relatively scarce. Here, we report the results of a microcosm experiment where four strains of the marine diatom Skeletonema marinoi were grown in monoculture and in mixture under a factorial combination of temperature and salinity stress. The strains differed in their susceptibility to the two stressors and no strain was able to survive both stressors simultaneously. Strong competition between the genotypes resulted in the dominance of one strain under both control and salinity stress conditions. The overall productivity of the mixture, however, was not related to the dominance of this strain, but was instead dependent on the treatment; under control conditions we observed a positive effect of genetic richness, whereas a negative effect was observed in the stress treatments. This suggests that interactions among the strains can be both positive and negative, depending on the abiotic environment. Our results provide additional evidence that the biodiversity-ecosystem functioning relationship is also relevant at the level of genetic diversity. Public Library of Science 2012-09-18 /pmc/articles/PMC3445582/ /pubmed/23028735 http://dx.doi.org/10.1371/journal.pone.0045007 Text en © 2012 Roger et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Roger, Fabian Godhe, Anna Gamfeldt, Lars Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors |
title | Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors |
title_full | Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors |
title_fullStr | Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors |
title_full_unstemmed | Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors |
title_short | Genetic Diversity and Ecosystem Functioning in the Face of Multiple Stressors |
title_sort | genetic diversity and ecosystem functioning in the face of multiple stressors |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445582/ https://www.ncbi.nlm.nih.gov/pubmed/23028735 http://dx.doi.org/10.1371/journal.pone.0045007 |
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