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Agricultural spider decline: long-term trends under constant management conditions
There is widespread evidence for a worldwide trend of insect decline, but we have much fewer data about recent temporal trends in other arthropod groups, including spiders. Spiders can be hypothesised to similarly decline because of trophic dependence on insects and being equally sensitive to local...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9911793/ https://www.ncbi.nlm.nih.gov/pubmed/36759542 http://dx.doi.org/10.1038/s41598-023-29003-2 |
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author | Samu, F. Szita, É. Botos, E. Simon, J. Gallé-Szpisjak, N. Gallé, R. |
author_facet | Samu, F. Szita, É. Botos, E. Simon, J. Gallé-Szpisjak, N. Gallé, R. |
author_sort | Samu, F. |
collection | PubMed |
description | There is widespread evidence for a worldwide trend of insect decline, but we have much fewer data about recent temporal trends in other arthropod groups, including spiders. Spiders can be hypothesised to similarly decline because of trophic dependence on insects and being equally sensitive to local and global environmental changes. Background trends in arthropod populations can be verified if we decouple large-scale environmental transitions, such as climate change, from local factors. To provide a case study on baseline spider community trends, we observed changes in the spider community of an unsprayed alfalfa field and its margin 23 years apart under largely unchanged local conditions. We aimed to determine whether there are changes in spider abundance, species richness and mean species characteristics. Spider abundance per unit effort decreased dramatically, by 45% in alfalfa and by 59% in the margin, but species richness and most characteristics remained unchanged. Community composition in both habitats shifted and became more similar by the current study period. The population decline was especially marked in certain farmland species. We propose that in the absence of local causative factors, spider abundance decline in our study indicates a reduction of spider populations at landscape and regional scales. |
format | Online Article Text |
id | pubmed-9911793 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-99117932023-02-11 Agricultural spider decline: long-term trends under constant management conditions Samu, F. Szita, É. Botos, E. Simon, J. Gallé-Szpisjak, N. Gallé, R. Sci Rep Article There is widespread evidence for a worldwide trend of insect decline, but we have much fewer data about recent temporal trends in other arthropod groups, including spiders. Spiders can be hypothesised to similarly decline because of trophic dependence on insects and being equally sensitive to local and global environmental changes. Background trends in arthropod populations can be verified if we decouple large-scale environmental transitions, such as climate change, from local factors. To provide a case study on baseline spider community trends, we observed changes in the spider community of an unsprayed alfalfa field and its margin 23 years apart under largely unchanged local conditions. We aimed to determine whether there are changes in spider abundance, species richness and mean species characteristics. Spider abundance per unit effort decreased dramatically, by 45% in alfalfa and by 59% in the margin, but species richness and most characteristics remained unchanged. Community composition in both habitats shifted and became more similar by the current study period. The population decline was especially marked in certain farmland species. We propose that in the absence of local causative factors, spider abundance decline in our study indicates a reduction of spider populations at landscape and regional scales. Nature Publishing Group UK 2023-02-09 /pmc/articles/PMC9911793/ /pubmed/36759542 http://dx.doi.org/10.1038/s41598-023-29003-2 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 Samu, F. Szita, É. Botos, E. Simon, J. Gallé-Szpisjak, N. Gallé, R. Agricultural spider decline: long-term trends under constant management conditions |
title | Agricultural spider decline: long-term trends under constant management conditions |
title_full | Agricultural spider decline: long-term trends under constant management conditions |
title_fullStr | Agricultural spider decline: long-term trends under constant management conditions |
title_full_unstemmed | Agricultural spider decline: long-term trends under constant management conditions |
title_short | Agricultural spider decline: long-term trends under constant management conditions |
title_sort | agricultural spider decline: long-term trends under constant management conditions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9911793/ https://www.ncbi.nlm.nih.gov/pubmed/36759542 http://dx.doi.org/10.1038/s41598-023-29003-2 |
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