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Andrew M. Kramer, M. Maille Lyons, Fred C. Dobbs and John M. Drake Bacterial colonization and extinction on marine aggregates: stochastic model of species presence and abundance Ecology and Evolution 3

Article first published online: 3 OCT 2013 | DOI: 10.1002/ece3.789

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Organic aggregates provide a favorable habitat for aquatic microbes, are efficiently filtered by shellfish, and may play a major role in the dynamics of aquatic pathogens. We develop a model for the stochastic dynamics of an “average” pathogen species on such aggregates. Model results suggest that presence and abundance are nonlinearly related to bacterial density and aggregate size and provide useful insight into how species-specific differences in bacterial pathogen traits may alter the effect of aggregates on disease transmission.

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