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E. coli microcosms indicate a tight link between predictability of ecosystem dynamics and diversity.


ABSTRACT: The diversity-stability hypothesis proposes that ecosystem diversity is positively correlated with stability. The impact of ecosystem diversity is, however, still debated. In a microcosm experiment using diverged Escherichia coli cells, we show that the fitness of community members depends on the complexity (number of participants) of the system. Interestingly, the spread of a community member with a superior genotype is mostly stochastic in low-complexity systems, but highly deterministic in a more complex environment. We conclude that system complexity provides a buffer against stochastic effects.

SUBMITTER: Imhof M 

PROVIDER: S-EPMC1500808 | biostudies-literature |

REPOSITORIES: biostudies-literature

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