Skin, but not gut, microbial communities vary with social density in Antarctic fur seals.
Front. Microbiol. 16:1603500 (2025)
Comparative studies of microbial communities occupying different body sites in wild vertebrates are scarce, but they are crucial for advancing our understanding of the ecological and evolutionary factors shaping animal microbiomes. We therefore used a natural experiment comprising mother-offspring pairs from two adjacent Antarctic fur seal breeding colonies that differ in social density to investigate differences between skin and gut microbial communities in relation to host-specific and environmental factors. Using 16S rRNA amplicon sequencing, we uncovered a strong influence of colony on the diversity and composition of skin but not gut microbial communities. Specifically, we observed a suppressive effect of high social density on skin microbial alpha diversity as well as an overabundance of phyla associated with diseases and bite wounds in the high-density colony. Our findings suggest that skin microbial communities may be more sensitive to external factors, whereas gut communities are more tightly regulated by the host. Overall, this study highlights the importance of considering multiple body sites and their distinct microbial communities to develop a more comprehensive understanding of the factors shaping microbial diversity and composition in marine mammals.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Antarctic Fur Seal (arctocephalus Gazella) ; Gut Microbiome ; Pinniped ; Skin Microbiome ; Social Density; Evolution; Life; Wild
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2025
Prepublished im Jahr
0
HGF-Berichtsjahr
2025
ISSN (print) / ISBN
1664-302X
e-ISSN
1664-302X
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 16,
Heft: ,
Seiten: ,
Artikelnummer: 1603500
Supplement: ,
Reihe
Verlag
Frontiers
Verlagsort
Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30202 - Environmental Health
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504700-001
G-504700-002
Förderungen
Open Access Publication Fund of Bielefeld University
DFG
British Antarctic Survey's Ecosystems Program
Natural Environment Research Council
German Research Foundation (DFG) Schwerpunktprogramm (special priority programme)
Copyright
Erfassungsdatum
2025-07-18