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Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming
Climate warming is releasing carbon from soils around the world, constituting a positive climate feedback. Warming is also causing species to expand their ranges into new ecosystems. Yet, in most ecosystems, whether range expanding species will amplify or buffer expected soil carbon loss is unknown....
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9191888/ https://www.ncbi.nlm.nih.gov/pubmed/35550673 http://dx.doi.org/10.7554/eLife.78555 |
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author | Walker, Tom WN Gavazov, Konstantin Guillaume, Thomas Lambert, Thibault Mariotte, Pierre Routh, Devin Signarbieux, Constant Block, Sebastián Münkemüller, Tamara Nomoto, Hanna Crowther, Thomas W Richter, Andreas Buttler, Alexandre Alexander, Jake M |
author_facet | Walker, Tom WN Gavazov, Konstantin Guillaume, Thomas Lambert, Thibault Mariotte, Pierre Routh, Devin Signarbieux, Constant Block, Sebastián Münkemüller, Tamara Nomoto, Hanna Crowther, Thomas W Richter, Andreas Buttler, Alexandre Alexander, Jake M |
author_sort | Walker, Tom WN |
collection | PubMed |
description | Climate warming is releasing carbon from soils around the world, constituting a positive climate feedback. Warming is also causing species to expand their ranges into new ecosystems. Yet, in most ecosystems, whether range expanding species will amplify or buffer expected soil carbon loss is unknown. Here, we used two whole-community transplant experiments and a follow-up glasshouse experiment to determine whether the establishment of herbaceous lowland plants in alpine ecosystems influences soil carbon content under warming. We found that warming (transplantation to low elevation) led to a negligible decrease in alpine soil carbon content, but its effects became significant and 52% ± 31% (mean ± 95% confidence intervals) larger after lowland plants were introduced at low density into the ecosystem. We present evidence that decreases in soil carbon content likely occurred via lowland plants increasing rates of root exudation, soil microbial respiration, and CO(2) release under warming. Our findings suggest that warming-induced range expansions of herbaceous plants have the potential to alter climate feedbacks from this system, and that plant range expansions among herbaceous communities may be an overlooked mediator of warming effects on carbon dynamics. |
format | Online Article Text |
id | pubmed-9191888 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-91918882022-06-14 Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming Walker, Tom WN Gavazov, Konstantin Guillaume, Thomas Lambert, Thibault Mariotte, Pierre Routh, Devin Signarbieux, Constant Block, Sebastián Münkemüller, Tamara Nomoto, Hanna Crowther, Thomas W Richter, Andreas Buttler, Alexandre Alexander, Jake M eLife Ecology Climate warming is releasing carbon from soils around the world, constituting a positive climate feedback. Warming is also causing species to expand their ranges into new ecosystems. Yet, in most ecosystems, whether range expanding species will amplify or buffer expected soil carbon loss is unknown. Here, we used two whole-community transplant experiments and a follow-up glasshouse experiment to determine whether the establishment of herbaceous lowland plants in alpine ecosystems influences soil carbon content under warming. We found that warming (transplantation to low elevation) led to a negligible decrease in alpine soil carbon content, but its effects became significant and 52% ± 31% (mean ± 95% confidence intervals) larger after lowland plants were introduced at low density into the ecosystem. We present evidence that decreases in soil carbon content likely occurred via lowland plants increasing rates of root exudation, soil microbial respiration, and CO(2) release under warming. Our findings suggest that warming-induced range expansions of herbaceous plants have the potential to alter climate feedbacks from this system, and that plant range expansions among herbaceous communities may be an overlooked mediator of warming effects on carbon dynamics. eLife Sciences Publications, Ltd 2022-05-12 /pmc/articles/PMC9191888/ /pubmed/35550673 http://dx.doi.org/10.7554/eLife.78555 Text en © 2022, Walker et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Ecology Walker, Tom WN Gavazov, Konstantin Guillaume, Thomas Lambert, Thibault Mariotte, Pierre Routh, Devin Signarbieux, Constant Block, Sebastián Münkemüller, Tamara Nomoto, Hanna Crowther, Thomas W Richter, Andreas Buttler, Alexandre Alexander, Jake M Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
title | Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
title_full | Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
title_fullStr | Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
title_full_unstemmed | Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
title_short | Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
title_sort | lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming |
topic | Ecology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9191888/ https://www.ncbi.nlm.nih.gov/pubmed/35550673 http://dx.doi.org/10.7554/eLife.78555 |
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