FIG 1 .

Characterization of biodiversity-ecosystem functioning relationships in vitro. (A) Pseudomonas community niche breadth was defined as the number of carbon sources used by at least one of the members of Pseudomonas community (detailed information on resources can be found in Table S4). (B) Pseudomonas community niche overlap with the pathogen was defined as similarity in resource consumption between the resident community and the pathogen. (C) Antibacterial activity of Pseudomonas community was determined as a reduction in pathogen density in the presence of Pseudomonas bacterial supernatants; all supernatants were derived from monocultures and mixed together in testing the synergistic effects.