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Mechanisms of biodiversity between Campylobacter sequence types in a flock of broiler-breeder chickens.


ABSTRACT: Commercial poultry flocks frequently harbor the dangerous bacterial pathogen Campylobacter. As exclusion efforts frequently fail, there is interest in potential ecologically informed solutions. A long-term study of Campylobacter sequence types was used to investigate the competitive framework of the Campylobacter metacommunity and understand how multiple sequence types simultaneously co-occur in a flock of chickens. A combination of matrix and patch-occupancy models was used to estimate parameters describing the competition, transmission, and mortality of each sequence type. It was found that Campylobacter sequence types form a strong hierarchical framework within a flock of chickens and occupied a broad spectrum of transmission-mortality trade-offs. Upon further investigation of how biodiversity is thus maintained within the flock, it was found that the demographic capabilities of Campylobacter, such as mortality and transmission, could not explain the broad biodiversity of sequence types seen, suggesting that external factors such as host-bird health and seasonality are important elements in maintaining biodiversity of Campylobacter sequence types.

SUBMITTER: Rawson T 

PROVIDER: S-EPMC8928907 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Mechanisms of biodiversity between <i>Campylobacter</i> sequence types in a flock of broiler-breeder chickens.

Rawson Thomas T   Colles Frances M FM   Terry J Christopher D JCD   Bonsall Michael B MB  

Ecology and evolution 20220306 3


Commercial poultry flocks frequently harbor the dangerous bacterial pathogen <i>Campylobacter</i>. As exclusion efforts frequently fail, there is interest in potential ecologically informed solutions. A long-term study of <i>Campylobacter</i> sequence types was used to investigate the competitive framework of the <i>Campylobacter</i> metacommunity and understand how multiple sequence types simultaneously co-occur in a flock of chickens. A combination of matrix and patch-occupancy models was used  ...[more]

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