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 : pp. 381-389.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Outlier, Sujet : ECOLOGY / Quartile : Outlier, Sujet : EVOLUTIONARY BIOLOGY

Abstract : 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

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

Mots-clés complémentaires : microbiome

Classification Agris : L20 - Animal ecology
L50 - Animal physiology and biochemistry

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

Auteurs et affiliations

  • Kueneman Jordan G., Smithsonian Tropical Research Institute (PAN)
  • Bletz Molly C., University of Massachusetts (USA)
  • McKenzie Valerie J., University of Colorado (USA)
  • Becker C. Guilherme, University of Alabama (USA)
  • Joseph Maxwell B., University of Colorado (USA)
  • Abarca Juan G., UCR (CRI)
  • Archer Holly, University of Colorado (USA)
  • Arellano Ana Lisette, University of Colorado (USA)
  • Bataille Arnaud, CIRAD-BIOS-UMR ASTRE (FRA)
  • Becker Matthew, Liberty University (USA)
  • Belden Lisa K., Virginia Tech (USA)
  • Crottini Angelica, CIBIO (PRT)
  • Geffers Robert, Helmholtz Zentrum München (DEU)
  • Haddad Célio. F. B., UNESP (BRA)
  • Harris Reid N., James Madison University (USA)
  • Holden Whitney M., Vanderbilt University Medical Center (USA)
  • Hughey Myra, Vassar College (USA)
  • Jarek Michael, Helmholtz Zentrum München (DEU)
  • Kearns Patrick J., Tufts University (USA)
  • Kerby Jacob L., South Dakota State University (USA)
  • Kielgast Jos, University of Copenhagen (DNK)
  • Kurabayashi Atsushi, Hirosaki University (JPN)
  • Longo Ana V., University of Florida (USA)
  • et al.

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