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Social environment influences microbiota and potentially pathogenic bacterial communities on the skin of developing birds
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Social environment influences microbiota and potentially pathogenic bacterial communities on the skin of developing birds
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Social environment influences microbiota and potentially pathogenic bacterial communities on the skin of developing birds
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Journal Article
Social environment influences microbiota and potentially pathogenic bacterial communities on the skin of developing birds
2024
Overview
Background
Animal bacterial symbionts are established early in life, either through vertical transmission and/or by horizontal transmission from both the physical and the social environment, such as direct contact with con- or heterospecifics. The social environment particularly can influence the acquisition of both mutualistic and pathogenic bacteria, with consequences for the stability of symbiotic communities. However, segregating the effects of the shared physical environment from those of the social interactions is challenging, limiting our current knowledge on the role of the social environment in structuring bacterial communities in wild animals. Here, we take advantage of the avian brood-parasite system of Eurasian magpies (
Pica pica
) and great spotted cuckoos (
Clamator glandarius
) to explore how the interspecific social environment (magpie nestlings developing with or without heterospecifics) affects bacterial communities on uropygial gland skin.
Results
We demonstrated interspecific differences in bacterial community compositions in members of the two species when growing up in monospecific nests. However, the bacterial community of magpies in heterospecific nests was richer, more diverse, and more similar to their cuckoo nest-mates than when growing up in monospecific nests. These patterns were alike for the subset of microbes that could be considered core, but when looking at the subset of potentially pathogenic bacterial genera, cuckoo presence reduced the relative abundance of potentially pathogenic bacterial genera on magpies.
Conclusions
Our findings highlight the role of social interactions in shaping the assembly of the avian skin bacterial communities during the nestling period, as exemplified in a brood parasite—host system.
Publisher
BioMed Central,Springer Nature B.V,BMC
Subject
