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Killer-sensitive coexistence in metapopulations of micro-organisms
- Source :
- Proceedings of the Royal Society. B: Biological Sciences 270 (2003), Proceedings of the Royal Society. B: Biological Sciences, 270, 1373-1378
- Publication Year :
- 2003
-
Abstract
- Many micro-organisms are known to produce efficient toxic substances against conspecifics and closely related species. The widespread coexistence of killer (toxin producer) and sensitive (non-producer) strains is a puzzle calling for a theoretical explanation. Based on stochastic cellular automaton simulations and the corresponding semi-analytical configuration-field approximation models, we suggest that metapopulation dynamics offers a plausible rationale for the maintenance of polymorphism in killer-sensitive systems. A slight trade-off between toxin production and population growth rate is sufficient to maintain the regional coexistence of toxic and sensitive strains, if toxic killing is a local phenomenon restricted to small habitat patches and local populations regularly go extinct and are renewed via recolonizations from neighbouring patches. Pattern formation on the regional scale does not play a decisive part in this mechanism, but the local manner of interactions is essential.
- Subjects :
- Time Factors
yeasts
Metapopulation
Biology
Laboratorium voor Erfelijkheidsleer
Models, Biological
General Biochemistry, Genetics and Molecular Biology
diversity
Stochastic cellular automaton
promotes biodiversity
Spatial model
Yeasts
Approximation models
evolution
Killer yeast
Ecosystem
General Environmental Science
Polymorphism, Genetic
General Immunology and Microbiology
Ecology
paper
General Medicine
Mycotoxins
PE&RC
Killer Factors, Yeast
communities
Phenotype
Habitat
escherichia-coli
scissors
Laboratory of Genetics
General Agricultural and Biological Sciences
competition
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 09628452 and 13731378
- Database :
- OpenAIRE
- Journal :
- Proceedings of the Royal Society. B: Biological Sciences 270 (2003), Proceedings of the Royal Society. B: Biological Sciences, 270, 1373-1378
- Accession number :
- edsair.doi.dedup.....dd595f2c0e1e3fdef7006c76ec3bb4bf