Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors
It is important to understand the consequences of low level disturbances on the functioning of ecological communities because of the pervasiveness and frequency of this type of environmental change. In this study we investigated the response of a heterogeneous, subtidal, soft-sediment habitat to sma...
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ftrepec:oai:RePEc:plo:pone00:0081646 2024-04-14T08:17:45+00:00 Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors Iván F Rodil Andrew M Lohrer Simon F Thrush https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0081646 https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081646&type=printable unknown https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0081646 https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081646&type=printable article ftrepec 2024-03-19T10:29:54Z It is important to understand the consequences of low level disturbances on the functioning of ecological communities because of the pervasiveness and frequency of this type of environmental change. In this study we investigated the response of a heterogeneous, subtidal, soft-sediment habitat to small experimental additions of organic matter and calcium carbonate to examine the sensitivity of benthic ecosystem functioning to changes in sediment characteristics that relate to the environmental threats of coastal eutrophication and ocean acidification. Our results documented significant changes between key biogeochemical and sedimentary variables such as gross primary production, ammonium uptake and dissolved reactive phosphorus flux following treatment additions. Moreover, the application of treatments affected relationships between macrofauna communities, sediment characteristics (e.g., chlorophyll a content) and biogeochemical processes (oxygen and nutrient fluxes). In this experiment organic matter and calcium carbonate showed persistent opposing effects on sedimentary processes, and we demonstrated that highly heterogeneous sediment habitats can be surprisingly sensitive to subtle perturbations. Our results have important biological implications in a world with relentless anthropogenic inputs of atmospheric CO2 and nutrients in coastal waters. Article in Journal/Newspaper Ocean acidification RePEc (Research Papers in Economics) |
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RePEc (Research Papers in Economics) |
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It is important to understand the consequences of low level disturbances on the functioning of ecological communities because of the pervasiveness and frequency of this type of environmental change. In this study we investigated the response of a heterogeneous, subtidal, soft-sediment habitat to small experimental additions of organic matter and calcium carbonate to examine the sensitivity of benthic ecosystem functioning to changes in sediment characteristics that relate to the environmental threats of coastal eutrophication and ocean acidification. Our results documented significant changes between key biogeochemical and sedimentary variables such as gross primary production, ammonium uptake and dissolved reactive phosphorus flux following treatment additions. Moreover, the application of treatments affected relationships between macrofauna communities, sediment characteristics (e.g., chlorophyll a content) and biogeochemical processes (oxygen and nutrient fluxes). In this experiment organic matter and calcium carbonate showed persistent opposing effects on sedimentary processes, and we demonstrated that highly heterogeneous sediment habitats can be surprisingly sensitive to subtle perturbations. Our results have important biological implications in a world with relentless anthropogenic inputs of atmospheric CO2 and nutrients in coastal waters. |
format |
Article in Journal/Newspaper |
author |
Iván F Rodil Andrew M Lohrer Simon F Thrush |
spellingShingle |
Iván F Rodil Andrew M Lohrer Simon F Thrush Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors |
author_facet |
Iván F Rodil Andrew M Lohrer Simon F Thrush |
author_sort |
Iván F Rodil |
title |
Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors |
title_short |
Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors |
title_full |
Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors |
title_fullStr |
Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors |
title_full_unstemmed |
Sensitivity of Heterogeneous Marine Benthic Habitats to Subtle Stressors |
title_sort |
sensitivity of heterogeneous marine benthic habitats to subtle stressors |
url |
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0081646 https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081646&type=printable |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0081646 https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081646&type=printable |
_version_ |
1796317035672633344 |