Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.

Hypoxia represents one of the major causes of biodiversity and ecosystem functioning loss for coastal waters. Since eutrophication-induced hypoxic events are becoming increasingly frequent and intense, understanding the response of ecosystems to hypoxia is of primary importance to understand and pre...

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Autores principales:	Carl Van Colen, Francesca Rossi, Francesc Montserrat, Maria G I Andersson, Britta Gribsholt, Peter M J Herman, Steven Degraer, Magda Vincx, Tom Ysebaert, Jack J Middelburg
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dad850aa0310423b91e8411f58ee7b59
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spelling	oai:doaj.org-article:dad850aa0310423b91e8411f58ee7b592021-11-18T08:07:53ZOrganism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.1932-620310.1371/journal.pone.0049795https://doaj.org/article/dad850aa0310423b91e8411f58ee7b592012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23185440/?tool=EBIhttps://doaj.org/toc/1932-6203Hypoxia represents one of the major causes of biodiversity and ecosystem functioning loss for coastal waters. Since eutrophication-induced hypoxic events are becoming increasingly frequent and intense, understanding the response of ecosystems to hypoxia is of primary importance to understand and predict the stability of ecosystem functioning. Such ecological stability may greatly depend on the recovery patterns of communities and the return time of the system properties associated to these patterns. Here, we have examined how the reassembly of a benthic community contributed to the recovery of ecosystem functioning following experimentally-induced hypoxia in a tidal flat. We demonstrate that organism-sediment interactions that depend on organism size and relate to mobility traits and sediment reworking capacities are generally more important than recovering species richness to set the return time of the measured sediment processes and properties. Specifically, increasing macrofauna bioturbation potential during community reassembly significantly contributed to the recovery of sediment processes and properties such as denitrification, bedload sediment transport, primary production and deep pore water ammonium concentration. Such bioturbation potential was due to the replacement of the small-sized organisms that recolonised at early stages by large-sized bioturbating organisms, which had a disproportionately stronger influence on sediment. This study suggests that the complete recovery of organism-sediment interactions is a necessary condition for ecosystem functioning recovery, and that such process requires long periods after disturbance due to the slow growth of juveniles into adult stages involved in these interactions. Consequently, repeated episodes of disturbance at intervals smaller than the time needed for the system to fully recover organism-sediment interactions may greatly impair the resilience of ecosystem functioning.Carl Van ColenFrancesca RossiFrancesc MontserratMaria G I AnderssonBritta GribsholtPeter M J HermanSteven DegraerMagda VincxTom YsebaertJack J MiddelburgPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 11, p e49795 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Carl Van Colen Francesca Rossi Francesc Montserrat Maria G I Andersson Britta Gribsholt Peter M J Herman Steven Degraer Magda Vincx Tom Ysebaert Jack J Middelburg Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
description	Hypoxia represents one of the major causes of biodiversity and ecosystem functioning loss for coastal waters. Since eutrophication-induced hypoxic events are becoming increasingly frequent and intense, understanding the response of ecosystems to hypoxia is of primary importance to understand and predict the stability of ecosystem functioning. Such ecological stability may greatly depend on the recovery patterns of communities and the return time of the system properties associated to these patterns. Here, we have examined how the reassembly of a benthic community contributed to the recovery of ecosystem functioning following experimentally-induced hypoxia in a tidal flat. We demonstrate that organism-sediment interactions that depend on organism size and relate to mobility traits and sediment reworking capacities are generally more important than recovering species richness to set the return time of the measured sediment processes and properties. Specifically, increasing macrofauna bioturbation potential during community reassembly significantly contributed to the recovery of sediment processes and properties such as denitrification, bedload sediment transport, primary production and deep pore water ammonium concentration. Such bioturbation potential was due to the replacement of the small-sized organisms that recolonised at early stages by large-sized bioturbating organisms, which had a disproportionately stronger influence on sediment. This study suggests that the complete recovery of organism-sediment interactions is a necessary condition for ecosystem functioning recovery, and that such process requires long periods after disturbance due to the slow growth of juveniles into adult stages involved in these interactions. Consequently, repeated episodes of disturbance at intervals smaller than the time needed for the system to fully recover organism-sediment interactions may greatly impair the resilience of ecosystem functioning.
format	article
author	Carl Van Colen Francesca Rossi Francesc Montserrat Maria G I Andersson Britta Gribsholt Peter M J Herman Steven Degraer Magda Vincx Tom Ysebaert Jack J Middelburg
author_facet	Carl Van Colen Francesca Rossi Francesc Montserrat Maria G I Andersson Britta Gribsholt Peter M J Herman Steven Degraer Magda Vincx Tom Ysebaert Jack J Middelburg
author_sort	Carl Van Colen
title	Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
title_short	Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
title_full	Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
title_fullStr	Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
title_full_unstemmed	Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
title_sort	organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/dad850aa0310423b91e8411f58ee7b59
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Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning.

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