Community richness of amphibian skin bacteria correlates with bioclimate at the global scale

Kueneman Jordan G., Bletz Molly C., McKenzie Valerie J., Becker C. Guilherme, Joseph Maxwell B., Abarca Juan G., Archer Holly, Arellano Ana Lisette, Bataille Arnaud, Becker Matthew, Belden Lisa K., Crottini Angelica, Geffers Robert, Haddad Célio. F. B., Harris Reid N., Holden Whitney M., Hughey Myra, Jarek Michael, Kearns Patrick J., Kerby Jacob L., Kielgast Jos, Kurabayashi Atsushi, Longo Ana V., et al.. 2019. Community richness of amphibian skin bacteria correlates with bioclimate at the global scale. Nature Ecology and Evolution, 3 : 381-389.

https://doi.org/10.1038/s41559-019-0798-1

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

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	Version publiée - Anglais Accès réservé aux personnels Cirad Utilisation soumise à autorisation de l'auteur ou du Cirad. nature ecology evolution.pdf Télécharger (1MB) \| Demander une copie

Url - jeu de données - Entrepôt autre : https://www.ncbi.nlm.nih.gov/bioproject/?term=PRJNA474496

Quartile : Outlier, Sujet : ECOLOGY / Quartile : Outlier, Sujet : EVOLUTIONARY BIOLOGY

Résumé : Animal-associated microbiomes are integral to host health, yet key biotic and abiotic factors that shape host-associated microbial communities at the global scale remain poorly understood. We investigated global patterns in amphibian skin bacterial communities, incorporating samples from 2,349 individuals representing 205 amphibian species across a broad biogeographic range. We analysed how biotic and abiotic factors correlate with skin microbial communities using multiple statistical approaches. Global amphibian skin bacterial richness was consistently correlated with temperature-associated factors. We found more diverse skin microbiomes in environments with colder winters and less stable thermal conditions compared with environments with warm winters and less annual temperature variation. We used bioinformatically predicted bacterial growth rates, dormancy genes and antibiotic synthesis genes, as well as inferred bacterial thermal growth optima to propose mechanistic hypotheses that may explain the observed patterns. We conclude that temporal and spatial characteristics of the host's macro-environment mediate microbial diversity.

Mots-clés Agrovoc : Amphibien, peau, Bacteria, environnement, biodiversité, flore microbienne, microbiome

Mots-clés géographiques Agrovoc : États-Unis d'Amérique, Brésil, Japon, République de Corée, Madagascar, Panama

Classification Agris : L20 - Écologie animale
L50 - Physiologie et biochimie animales

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Auteurs et affiliations