Cargando…
Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest
Declining arthropod communities have recently gained a lot of attention, with climate and land-use change among the most frequently discussed drivers. Here, we focus on a seemingly underrepresented driver of arthropod community decline: biological invasions. For approximately 12 000 years, earthworm...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8965420/ https://www.ncbi.nlm.nih.gov/pubmed/35350876 http://dx.doi.org/10.1098/rsbl.2021.0636 |
_version_ | 1784678428830597120 |
---|---|
author | Jochum, Malte Thouvenot, Lise Ferlian, Olga Zeiss, Romy Klarner, Bernhard Pruschitzki, Ulrich Johnson, Edward A. Eisenhauer, Nico |
author_facet | Jochum, Malte Thouvenot, Lise Ferlian, Olga Zeiss, Romy Klarner, Bernhard Pruschitzki, Ulrich Johnson, Edward A. Eisenhauer, Nico |
author_sort | Jochum, Malte |
collection | PubMed |
description | Declining arthropod communities have recently gained a lot of attention, with climate and land-use change among the most frequently discussed drivers. Here, we focus on a seemingly underrepresented driver of arthropod community decline: biological invasions. For approximately 12 000 years, earthworms have been absent from wide parts of northern North America, but they have been re-introduced with dramatic consequences. Most studies investigating earthworm-invasion impacts focus on the belowground world, resulting in limited knowledge on aboveground-community changes. We present observational data on earthworm, plant and aboveground arthropod communities in 60 plots, distributed across areas with increasing invasion status (low, medium and high) in a Canadian forest. We analysed how earthworm-invasion status and biomass impact aboveground arthropod community abundance, biomass and species richness, and how earthworm impacts cascade across trophic levels. We sampled approximately 13 000 arthropods, dominated by Hemiptera, Diptera, Araneae, Thysanoptera and Hymenoptera. Total arthropod abundance, biomass and species richness declined significantly from areas of low to those with high invasion status, with reductions of 61, 27 and 18%, respectively. Structural equation models suggest that earthworms directly and indirectly impact arthropods across trophic levels. We show that earthworm invasion can alter aboveground multi-trophic arthropod communities and suggest that belowground invasions might be underappreciated drivers of aboveground arthropod decline. |
format | Online Article Text |
id | pubmed-8965420 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-89654202022-03-30 Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest Jochum, Malte Thouvenot, Lise Ferlian, Olga Zeiss, Romy Klarner, Bernhard Pruschitzki, Ulrich Johnson, Edward A. Eisenhauer, Nico Biol Lett Special Feature Declining arthropod communities have recently gained a lot of attention, with climate and land-use change among the most frequently discussed drivers. Here, we focus on a seemingly underrepresented driver of arthropod community decline: biological invasions. For approximately 12 000 years, earthworms have been absent from wide parts of northern North America, but they have been re-introduced with dramatic consequences. Most studies investigating earthworm-invasion impacts focus on the belowground world, resulting in limited knowledge on aboveground-community changes. We present observational data on earthworm, plant and aboveground arthropod communities in 60 plots, distributed across areas with increasing invasion status (low, medium and high) in a Canadian forest. We analysed how earthworm-invasion status and biomass impact aboveground arthropod community abundance, biomass and species richness, and how earthworm impacts cascade across trophic levels. We sampled approximately 13 000 arthropods, dominated by Hemiptera, Diptera, Araneae, Thysanoptera and Hymenoptera. Total arthropod abundance, biomass and species richness declined significantly from areas of low to those with high invasion status, with reductions of 61, 27 and 18%, respectively. Structural equation models suggest that earthworms directly and indirectly impact arthropods across trophic levels. We show that earthworm invasion can alter aboveground multi-trophic arthropod communities and suggest that belowground invasions might be underappreciated drivers of aboveground arthropod decline. The Royal Society 2022-03-30 /pmc/articles/PMC8965420/ /pubmed/35350876 http://dx.doi.org/10.1098/rsbl.2021.0636 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Special Feature Jochum, Malte Thouvenot, Lise Ferlian, Olga Zeiss, Romy Klarner, Bernhard Pruschitzki, Ulrich Johnson, Edward A. Eisenhauer, Nico Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest |
title | Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest |
title_full | Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest |
title_fullStr | Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest |
title_full_unstemmed | Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest |
title_short | Aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern North American forest |
title_sort | aboveground impacts of a belowground invader: how invasive earthworms alter aboveground arthropod communities in a northern north american forest |
topic | Special Feature |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8965420/ https://www.ncbi.nlm.nih.gov/pubmed/35350876 http://dx.doi.org/10.1098/rsbl.2021.0636 |
work_keys_str_mv | AT jochummalte abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT thouvenotlise abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT ferlianolga abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT zeissromy abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT klarnerbernhard abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT pruschitzkiulrich abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT johnsonedwarda abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest AT eisenhauernico abovegroundimpactsofabelowgroundinvaderhowinvasiveearthwormsalterabovegroundarthropodcommunitiesinanorthernnorthamericanforest |