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Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum
Biotic homogenization appears to be a global consequence of anthropogenic change. However, the underlying environmental factors contributing to homogenization are difficult to identify because their effects usually interact and confound each other. This can be the reason why there is very little evi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10113374/ https://www.ncbi.nlm.nih.gov/pubmed/37072510 http://dx.doi.org/10.1038/s41598-023-32806-y |
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author | Zhai, Marie Bojková, Jindřiška Němejcová, Denisa Polášek, Marek Syrovátka, Vít Horsák, Michal |
author_facet | Zhai, Marie Bojková, Jindřiška Němejcová, Denisa Polášek, Marek Syrovátka, Vít Horsák, Michal |
author_sort | Zhai, Marie |
collection | PubMed |
description | Biotic homogenization appears to be a global consequence of anthropogenic change. However, the underlying environmental factors contributing to homogenization are difficult to identify because their effects usually interact and confound each other. This can be the reason why there is very little evidence on the role of climate warming in homogenization. By analysing macroinvertebrate assemblages in 65 streams that were as close to natural conditions as possible, we avoided the confounding effects of common anthropogenic stressors. This approach resulted in revealing a significant effect of increased temperature (both summer and winter) on changes in macroinvertebrate compositional over the past two decades. However, homogenization was significant only at opposite ends of the river continuum (submontane brooks, low-altitude rivers). Surprisingly, species of native origin predominated overall, increasing in frequency and abundance (“winners”), while only a minority of species declined or disappeared (“losers”). We hypothesise that undisturbed conditions mitigate species declines and thus homogenization, and that the temperature increase has so far been beneficial to most native species. Although we may have only captured a transitional state due to extinction debt, this underscores the importance of maintaining ecological conditions in stream to prevent species loss due to climate change. |
format | Online Article Text |
id | pubmed-10113374 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-101133742023-04-20 Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum Zhai, Marie Bojková, Jindřiška Němejcová, Denisa Polášek, Marek Syrovátka, Vít Horsák, Michal Sci Rep Article Biotic homogenization appears to be a global consequence of anthropogenic change. However, the underlying environmental factors contributing to homogenization are difficult to identify because their effects usually interact and confound each other. This can be the reason why there is very little evidence on the role of climate warming in homogenization. By analysing macroinvertebrate assemblages in 65 streams that were as close to natural conditions as possible, we avoided the confounding effects of common anthropogenic stressors. This approach resulted in revealing a significant effect of increased temperature (both summer and winter) on changes in macroinvertebrate compositional over the past two decades. However, homogenization was significant only at opposite ends of the river continuum (submontane brooks, low-altitude rivers). Surprisingly, species of native origin predominated overall, increasing in frequency and abundance (“winners”), while only a minority of species declined or disappeared (“losers”). We hypothesise that undisturbed conditions mitigate species declines and thus homogenization, and that the temperature increase has so far been beneficial to most native species. Although we may have only captured a transitional state due to extinction debt, this underscores the importance of maintaining ecological conditions in stream to prevent species loss due to climate change. Nature Publishing Group UK 2023-04-18 /pmc/articles/PMC10113374/ /pubmed/37072510 http://dx.doi.org/10.1038/s41598-023-32806-y Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Zhai, Marie Bojková, Jindřiška Němejcová, Denisa Polášek, Marek Syrovátka, Vít Horsák, Michal Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
title | Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
title_full | Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
title_fullStr | Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
title_full_unstemmed | Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
title_short | Climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
title_sort | climatically promoted taxonomic homogenization of macroinvertebrates in unaffected streams varies along the river continuum |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10113374/ https://www.ncbi.nlm.nih.gov/pubmed/37072510 http://dx.doi.org/10.1038/s41598-023-32806-y |
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