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Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles

Microbial symbionts can influence their hosts in stunningly diverse ways. Emerging research suggests that an underappreciated facet of these relationships is the influence microbes can have on their host's responses to novel, or stressful, environmental conditions. We sought to address these an...

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Detalles Bibliográficos
Autores principales: Parker, Erik S., Moczek, Armin P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7771182/
https://www.ncbi.nlm.nih.gov/pubmed/33391669
http://dx.doi.org/10.1002/ece3.6836
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author Parker, Erik S.
Moczek, Armin P.
author_facet Parker, Erik S.
Moczek, Armin P.
author_sort Parker, Erik S.
collection PubMed
description Microbial symbionts can influence their hosts in stunningly diverse ways. Emerging research suggests that an underappreciated facet of these relationships is the influence microbes can have on their host's responses to novel, or stressful, environmental conditions. We sought to address these and related questions in populations resulting from the recent introduction and subsequent rapid range expansion of Onthophagus taurus dung beetles. Specifically, we manipulated both microbial communities and rearing temperature to detect signatures of developmental and life history differentiation in response to the local thermal conditions in two populations derived from the southern most (Florida) and northern most (Michigan) extremes of the exotic Eastern U.S. range of O. taurus. We then sought to determine the contributions, if any, of host‐associated microbiota to this differentiation. We found that when reared under common garden conditions individuals from Florida and Michigan populations differed significantly in developmental performance measures and life history traits, consistent with population divergence. At the same time, and contrary to our predictions, we failed to find support for the hypothesis that animals perform better if reared at temperatures that match their location of origin and that performance differences may be mediated by host‐associated microbiota. Instead, we found that microbiome swapping across host populations improved developmental performance in both populations, consistent with enemy release dynamics. We discuss the implications of our results for our understanding of the rapid spread of exotic O. taurus through the Eastern United States and the significance of symbiosis in host responses to novel environmental conditions more broadly.
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spelling pubmed-77711822020-12-31 Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles Parker, Erik S. Moczek, Armin P. Ecol Evol Original Research Microbial symbionts can influence their hosts in stunningly diverse ways. Emerging research suggests that an underappreciated facet of these relationships is the influence microbes can have on their host's responses to novel, or stressful, environmental conditions. We sought to address these and related questions in populations resulting from the recent introduction and subsequent rapid range expansion of Onthophagus taurus dung beetles. Specifically, we manipulated both microbial communities and rearing temperature to detect signatures of developmental and life history differentiation in response to the local thermal conditions in two populations derived from the southern most (Florida) and northern most (Michigan) extremes of the exotic Eastern U.S. range of O. taurus. We then sought to determine the contributions, if any, of host‐associated microbiota to this differentiation. We found that when reared under common garden conditions individuals from Florida and Michigan populations differed significantly in developmental performance measures and life history traits, consistent with population divergence. At the same time, and contrary to our predictions, we failed to find support for the hypothesis that animals perform better if reared at temperatures that match their location of origin and that performance differences may be mediated by host‐associated microbiota. Instead, we found that microbiome swapping across host populations improved developmental performance in both populations, consistent with enemy release dynamics. We discuss the implications of our results for our understanding of the rapid spread of exotic O. taurus through the Eastern United States and the significance of symbiosis in host responses to novel environmental conditions more broadly. John Wiley and Sons Inc. 2020-11-19 /pmc/articles/PMC7771182/ /pubmed/33391669 http://dx.doi.org/10.1002/ece3.6836 Text en © 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Parker, Erik S.
Moczek, Armin P.
Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles
title Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles
title_full Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles
title_fullStr Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles
title_full_unstemmed Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles
title_short Don’t stand so close to me: Microbiota‐facilitated enemy release dynamics in introduced Onthophagus taurus dung beetles
title_sort don’t stand so close to me: microbiota‐facilitated enemy release dynamics in introduced onthophagus taurus dung beetles
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7771182/
https://www.ncbi.nlm.nih.gov/pubmed/33391669
http://dx.doi.org/10.1002/ece3.6836
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