Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities
Abstract Understanding the role of interspecific interactions in shaping ecological communities is one of the central goals in community ecology. In fungal communities, measuring interspecific interactions directly is challenging because these communities are composed of large numbers of species, ma...
Published in: | Molecular Ecology |
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Online Access: | http://dx.doi.org/10.1111/mec.15516 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15516 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15516 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15516 |
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crwiley:10.1111/mec.15516 2024-09-09T19:22:07+00:00 Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J. M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso Vetenskapsrådet Academy of Finland Norges Forskningsråd Ella ja Georg Ehrnroothin Säätiö 2020 http://dx.doi.org/10.1111/mec.15516 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15516 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15516 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15516 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Molecular Ecology volume 29, issue 14, page 2736-2746 ISSN 0962-1083 1365-294X journal-article 2020 crwiley https://doi.org/10.1111/mec.15516 2024-08-09T04:31:23Z Abstract Understanding the role of interspecific interactions in shaping ecological communities is one of the central goals in community ecology. In fungal communities, measuring interspecific interactions directly is challenging because these communities are composed of large numbers of species, many of which are unculturable. An indirect way of assessing the role of interspecific interactions in determining community structure is to identify the species co‐occurrences that are not constrained by environmental conditions. In this study, we investigated co‐occurrences among root‐associated fungi, asking whether fungi co‐occur more or less strongly than expected based on the environmental conditions and the host plant species examined. We generated molecular data on root‐associated fungi of five plant species evenly sampled along an elevational gradient at a high arctic site. We analysed the data using a joint species distribution modelling approach that allowed us to identify those co‐occurrences that could be explained by the environmental conditions and the host plant species, as well as those co‐occurrences that remained unexplained and thus more probably reflect interactive associations. Our results indicate that not only negative but also positive interactions play an important role in shaping microbial communities in arctic plant roots. In particular, we found that mycorrhizal fungi are especially prone to positively co‐occur with other fungal species. Our results bring new understanding to the structure of arctic interaction networks by suggesting that interactions among root‐associated fungi are predominantly positive. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Molecular Ecology 29 14 2736 2746 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Understanding the role of interspecific interactions in shaping ecological communities is one of the central goals in community ecology. In fungal communities, measuring interspecific interactions directly is challenging because these communities are composed of large numbers of species, many of which are unculturable. An indirect way of assessing the role of interspecific interactions in determining community structure is to identify the species co‐occurrences that are not constrained by environmental conditions. In this study, we investigated co‐occurrences among root‐associated fungi, asking whether fungi co‐occur more or less strongly than expected based on the environmental conditions and the host plant species examined. We generated molecular data on root‐associated fungi of five plant species evenly sampled along an elevational gradient at a high arctic site. We analysed the data using a joint species distribution modelling approach that allowed us to identify those co‐occurrences that could be explained by the environmental conditions and the host plant species, as well as those co‐occurrences that remained unexplained and thus more probably reflect interactive associations. Our results indicate that not only negative but also positive interactions play an important role in shaping microbial communities in arctic plant roots. In particular, we found that mycorrhizal fungi are especially prone to positively co‐occur with other fungal species. Our results bring new understanding to the structure of arctic interaction networks by suggesting that interactions among root‐associated fungi are predominantly positive. |
author2 |
Vetenskapsrådet Academy of Finland Norges Forskningsråd Ella ja Georg Ehrnroothin Säätiö |
format |
Article in Journal/Newspaper |
author |
Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J. M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso |
spellingShingle |
Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J. M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
author_facet |
Abrego, Nerea Roslin, Tomas Huotari, Tea Tack, Ayco J. M. Lindahl, Björn D. Tikhonov, Gleb Somervuo, Panu Schmidt, Niels Martin Ovaskainen, Otso |
author_sort |
Abrego, Nerea |
title |
Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
title_short |
Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
title_full |
Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
title_fullStr |
Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
title_full_unstemmed |
Accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
title_sort |
accounting for environmental variation in co‐occurrence modelling reveals the importance of positive interactions in root‐associated fungal communities |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/mec.15516 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15516 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15516 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15516 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Molecular Ecology volume 29, issue 14, page 2736-2746 ISSN 0962-1083 1365-294X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/mec.15516 |
container_title |
Molecular Ecology |
container_volume |
29 |
container_issue |
14 |
container_start_page |
2736 |
op_container_end_page |
2746 |
_version_ |
1809762398411685888 |