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Modeling the trophic impacts of invasive zooplankton in a highly invaded river
The lower Columbia River (Washington and Oregon, USA) has been heavily invaded by a large number of planktonic organisms including the invasive copepod Pseudodiaptomus forbesi and the planktonic juveniles of the invasive clam, Corbicula fluminea. In order to assess the ecological impacts of these hi...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7707467/ https://www.ncbi.nlm.nih.gov/pubmed/33259538 http://dx.doi.org/10.1371/journal.pone.0243002 |
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author | Dexter, Eric Katz, Stephen L. Bollens, Stephen M. Rollwagen-Bollens, Gretchen Hampton, Stephanie E. |
author_facet | Dexter, Eric Katz, Stephen L. Bollens, Stephen M. Rollwagen-Bollens, Gretchen Hampton, Stephanie E. |
author_sort | Dexter, Eric |
collection | PubMed |
description | The lower Columbia River (Washington and Oregon, USA) has been heavily invaded by a large number of planktonic organisms including the invasive copepod Pseudodiaptomus forbesi and the planktonic juveniles of the invasive clam, Corbicula fluminea. In order to assess the ecological impacts of these highly abundant invaders, we developed a multivariate auto-regressive (MAR) model of food web dynamics based upon a 12-year time-series of plankton community and environmental data from the Columbia River. Our model results indicate that plankton communities in the lower Columbia River are strongly impacted by the copepod P. forbesi at multiple trophic levels. We observed different ecological effects across different life stages of P. forbesi, with nauplii negatively impacting ciliates and autotrophs, and copepodite stages negatively impacting Daphnia and cyclopoid copepods. Although juvenile C. fluminea were highly abundant in the summer and autumn of each year, our best fit MAR model did not show significant C. fluminea impacts. Our results illustrate the strong ecological impact that some zooplankton invaders may cause within rivers and estuarine systems, and highlight the need for further research on the feeding ecology of the planktonic life-stage of C. fluminea. Overall, our study demonstrates the manner in which long-term, high resolution data sets can be used to better understand the ecological impacts of invasive species among complex and highly dynamic communities. |
format | Online Article Text |
id | pubmed-7707467 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-77074672020-12-08 Modeling the trophic impacts of invasive zooplankton in a highly invaded river Dexter, Eric Katz, Stephen L. Bollens, Stephen M. Rollwagen-Bollens, Gretchen Hampton, Stephanie E. PLoS One Research Article The lower Columbia River (Washington and Oregon, USA) has been heavily invaded by a large number of planktonic organisms including the invasive copepod Pseudodiaptomus forbesi and the planktonic juveniles of the invasive clam, Corbicula fluminea. In order to assess the ecological impacts of these highly abundant invaders, we developed a multivariate auto-regressive (MAR) model of food web dynamics based upon a 12-year time-series of plankton community and environmental data from the Columbia River. Our model results indicate that plankton communities in the lower Columbia River are strongly impacted by the copepod P. forbesi at multiple trophic levels. We observed different ecological effects across different life stages of P. forbesi, with nauplii negatively impacting ciliates and autotrophs, and copepodite stages negatively impacting Daphnia and cyclopoid copepods. Although juvenile C. fluminea were highly abundant in the summer and autumn of each year, our best fit MAR model did not show significant C. fluminea impacts. Our results illustrate the strong ecological impact that some zooplankton invaders may cause within rivers and estuarine systems, and highlight the need for further research on the feeding ecology of the planktonic life-stage of C. fluminea. Overall, our study demonstrates the manner in which long-term, high resolution data sets can be used to better understand the ecological impacts of invasive species among complex and highly dynamic communities. Public Library of Science 2020-12-01 /pmc/articles/PMC7707467/ /pubmed/33259538 http://dx.doi.org/10.1371/journal.pone.0243002 Text en © 2020 Dexter et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Dexter, Eric Katz, Stephen L. Bollens, Stephen M. Rollwagen-Bollens, Gretchen Hampton, Stephanie E. Modeling the trophic impacts of invasive zooplankton in a highly invaded river |
title | Modeling the trophic impacts of invasive zooplankton in a highly invaded river |
title_full | Modeling the trophic impacts of invasive zooplankton in a highly invaded river |
title_fullStr | Modeling the trophic impacts of invasive zooplankton in a highly invaded river |
title_full_unstemmed | Modeling the trophic impacts of invasive zooplankton in a highly invaded river |
title_short | Modeling the trophic impacts of invasive zooplankton in a highly invaded river |
title_sort | modeling the trophic impacts of invasive zooplankton in a highly invaded river |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7707467/ https://www.ncbi.nlm.nih.gov/pubmed/33259538 http://dx.doi.org/10.1371/journal.pone.0243002 |
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