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Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts
Predation shapes marine benthic communities and affects prey species population dynamics in tropic and temperate coastal systems. However, information on its magnitude in systematically understudied Arctic coastal habitats is scarce. To test predation effects on the diversity and structure of Arctic...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9873870/ https://www.ncbi.nlm.nih.gov/pubmed/36713482 http://dx.doi.org/10.1002/ece3.9779 |
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author | Díaz, María José Buschbaum, Christian Renaud, Paul E. Valdivia, Nelson Molis, Markus |
author_facet | Díaz, María José Buschbaum, Christian Renaud, Paul E. Valdivia, Nelson Molis, Markus |
author_sort | Díaz, María José |
collection | PubMed |
description | Predation shapes marine benthic communities and affects prey species population dynamics in tropic and temperate coastal systems. However, information on its magnitude in systematically understudied Arctic coastal habitats is scarce. To test predation effects on the diversity and structure of Arctic benthic communities, we conducted caging experiments in which consumers were excluded from plots at two intertidal sedimentary sites in Svalbard (Longyearbyen and Thiisbukta) for 2.5 months. Unmanipulated areas served as controls and partial (open) cages were used to estimate potential cage effects. At the end of the experiment, we took one sediment core from each plot and quantified total biomass and the number of each encountered taxon. At both sites, the experimental exclusion of predators slightly changed the species composition of communities and had negligible effects on biomass, total abundance, species richness, evenness, and Shannon Index. In addition, we found evidence for cage effects, and spatial variability in the intensity of the predation effects was identified. Our study suggests that predators have limited effects on the structure of the studied intertidal macrobenthic Arctic communities, which is different from coastal soft‐bottom ecosystems at lower latitudes. |
format | Online Article Text |
id | pubmed-9873870 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-98738702023-01-27 Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts Díaz, María José Buschbaum, Christian Renaud, Paul E. Valdivia, Nelson Molis, Markus Ecol Evol Research Articles Predation shapes marine benthic communities and affects prey species population dynamics in tropic and temperate coastal systems. However, information on its magnitude in systematically understudied Arctic coastal habitats is scarce. To test predation effects on the diversity and structure of Arctic benthic communities, we conducted caging experiments in which consumers were excluded from plots at two intertidal sedimentary sites in Svalbard (Longyearbyen and Thiisbukta) for 2.5 months. Unmanipulated areas served as controls and partial (open) cages were used to estimate potential cage effects. At the end of the experiment, we took one sediment core from each plot and quantified total biomass and the number of each encountered taxon. At both sites, the experimental exclusion of predators slightly changed the species composition of communities and had negligible effects on biomass, total abundance, species richness, evenness, and Shannon Index. In addition, we found evidence for cage effects, and spatial variability in the intensity of the predation effects was identified. Our study suggests that predators have limited effects on the structure of the studied intertidal macrobenthic Arctic communities, which is different from coastal soft‐bottom ecosystems at lower latitudes. John Wiley and Sons Inc. 2023-01-24 /pmc/articles/PMC9873870/ /pubmed/36713482 http://dx.doi.org/10.1002/ece3.9779 Text en © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Díaz, María José Buschbaum, Christian Renaud, Paul E. Valdivia, Nelson Molis, Markus Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts |
title | Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts |
title_full | Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts |
title_fullStr | Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts |
title_full_unstemmed | Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts |
title_short | Limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of Arctic coasts |
title_sort | limited predatory effects on infaunal macrobenthos community patterns in intertidal soft‐bottom of arctic coasts |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9873870/ https://www.ncbi.nlm.nih.gov/pubmed/36713482 http://dx.doi.org/10.1002/ece3.9779 |
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