Environmental conditions and community evenness determine the outcome of biological invasion
| Autor: | Nico Boon, Annalisa Balloi, Massimo Marzorati, Willy Verstraete, Karen De Roy, Daniele Daffonchio, Andrea Negroni, Olivier Thas, Fabio Fava |
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| Přispěvatelé: | Karen De Roy, Massimo Marzorati, Andrea Negroni, Olivier Tha, Annalisa Balloi, Fabio Fava, Willy Verstraete, Daniele Daffonchio, Nico Boon |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Salinity evenne Biodiversity microbial communities General Physics and Astronomy Introduced species environmental stre Biology Models Biological 010603 evolutionary biology 01 natural sciences Outcome (game theory) General Biochemistry Genetics and Molecular Biology 03 medical and health sciences Invasion Stress Physiological Ecosystem 030304 developmental biology 0303 health sciences Multidisciplinary Bacteria Resistance (ecology) Ecology Stressor General Chemistry 15. Life on land Carbon Species evenness Species richness Introduced Species |
| Zdroj: | Nature Communications |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/ncomms2392 |
| Popis: | Biological invasion is widely studied, however, conclusions on the outcome of this process mainly originate from observations in systems that leave a large number of experimental variables uncontrolled. Here using a fully controlled system consisting of assembled bacterial communities, we evaluate the degree of invasion and the effect on the community functionality in relation to the initial community evenness under specific environmental stressors. We show that evenness influences the level of invasion and that the introduced species can promote functionality under stress. The evenness–invasibility relationship is negative in the absence and neutral in the presence of stress. Under these conditions, the introduced species is able to maintain the functionality of uneven communities. These results indicate that communities, initially having the same genetic background, in the presence of the same invader, react in a different way with respect to invasibility and functionality depending on specific environmental conditions and community evenness. |
| Databáze: | OpenAIRE |
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