SEXUAL TRANSMISSION MAY DRIVE PAIR SIMILARITY OF THE CLOACAL MICROBIOME IN A POLYANDROUS SPECIES ...

1 All animals host a microbial community within and on their reproductive organs, known as the reproductive microbiome. In free-living birds, studies on the sexual transmission of bacteria have typically focused on a few pathogens instead of the bacterial community as a whole, despite a potential li...

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Bibliographic Details
Main Authors: Prüter, Hanna, Gillingham, Mark, Krietsch, Johannes, Kuhn, Sylvia, Kempenaers, Bart
Format: Article in Journal/Newspaper
Language:unknown
Published: Zenodo 2023
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Online Access:https://dx.doi.org/10.5281/zenodo.7928429
https://zenodo.org/record/7928429
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Summary:1 All animals host a microbial community within and on their reproductive organs, known as the reproductive microbiome. In free-living birds, studies on the sexual transmission of bacteria have typically focused on a few pathogens instead of the bacterial community as a whole, despite a potential link to reproductive function. Theory predicts higher sexual transmission of the reproductive microbiome in females via the males’ ejaculates and higher rates of transmission in promiscuous systems. 2 We studied the cloacal microbiome of breeding individuals of a socially polyandrous, sex-role-reversed shorebird, the red phalarope ( Phalaropus fulicarius ). We expected (i) higher microbial diversity in females compared to males; (ii) low compositional differentiation between sexes; (iii) lower intraspecific variation in females than in males; (iv) convergence in composition as the breeding season progresses as a consequence of sexual transmission and/or shared habitat use; and, (v) higher similarity in microbial ...