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  Characterization of the microbiome of the invasive Asian toad in Madagascar across the expansion range and comparison with a native co-occurring species

Santos, B., Bletz, M. C., Sabino-Pinto, J., Cocca, W., Fidy, J. F. S., Freeman, K. L., et al. (2021). Characterization of the microbiome of the invasive Asian toad in Madagascar across the expansion range and comparison with a native co-occurring species. PeerJ, 9: e11532. doi:10.7717/peerj.11532.

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 Creators:
Santos, Bárbara, Author
Bletz, Molly C., Author
Sabino-Pinto, Joana, Author
Cocca, Walter, Author
Fidy, Jean Francois Solofoniaina, Author
Freeman, Karen LM, Author
Künzel, Sven1, Author           
Ndriantsoa, Serge, Author
Noel, Jean, Author
Rakotonanahary, Tsanta, Author
Vences, Miguel, Author
Crottini, Angelica, Author
Affiliations:
1Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445635              

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Free keywords: Duttaphrynus melanostictus, Ptychadena mascareniensis, Invasive species, Toamasina, Madagascar, 16s rRNA sequencing, Gut bacteria, Skin bacteria
 Abstract: Biological invasions are on the rise, with each invader carrying a plethora of associated microbes. These microbes play important, yet poorly understood, ecological roles that can include assisting the hosts in colonization and adaptation processes or as possible pathogens. Understanding how these communities differ in an invasion scenario may help to understand the host's resilience and adaptability. The Asian common toad, Duttaphrynus melanostictus is an invasive amphibian, which has recently established in Madagascar and is expected to pose numerous threats to the native ecosystems. We characterized the skin and gut bacterial communities of D. melanostictus in Toamasina (Eastern Madagascar), and compared them to those of a co-occurring native frog species, Ptychadena mascareniensis, at three sites where the toad arrived in different years. Microbial composition did not vary among sites, showing that D. melanostictus keeps a stable community across its expansion but significant differences were observed between these two amphibians. Moreover, D. melanostictus had richer and more diverse communities and also harboured a high percentage of total unique taxa (skin: 80%; gut: 52%). These differences may reflect the combination of multiple host-associated factors including microhabitat selection, skin features and dietary preferences.

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Language(s): eng - English
 Dates: 2020-10-072021-05-072021-06-282021
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.7717/peerj.11532
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Title: PeerJ
  Other : PeerJ
Source Genre: Journal
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Publ. Info: London [u.a.] : PeerJ Inc.
Pages: - Volume / Issue: 9 Sequence Number: e11532 Start / End Page: - Identifier: ISSN: 2167-8359
CoNE: https://pure.mpg.de/cone/journals/resource/2167-8359