Resistance of benthic intertidal communities to multiple disturbances and stresses
Many ecosystems are facing biodiversity loss and environmental change due to anthropogenic activities, with these impacts occurring within the context of natural disturbance. Understanding ecosystem functioning and the response of communities to these impacts is necessary in order to evaluate the ef...
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ftunivquebecchic:oai:constellation.uqac.ca:3362 2023-05-15T18:28:31+02:00 Resistance of benthic intertidal communities to multiple disturbances and stresses Joseph, Laetitia Cusson, Mathieu 2015 application/pdf https://constellation.uqac.ca/3362/1/Joseph_Cusson_post-proof_meps2015_complet.pdf https://constellation.uqac.ca/3362/19/Cusson_et_Joseph_MEPS_2015.pdf https://constellation.uqac.ca/3362/20/Cusson_et_Joseph_MEPS_2015_supplement.pdf en eng https://constellation.uqac.ca/3362/ http://dx.doi.org/doi:10.3354/meps11359 https://constellation.uqac.ca/3362/1/Joseph_Cusson_post-proof_meps2015_complet.pdf https://constellation.uqac.ca/3362/19/Cusson_et_Joseph_MEPS_2015.pdf https://constellation.uqac.ca/3362/20/Cusson_et_Joseph_MEPS_2015_supplement.pdf Joseph Laetitia et Cusson Mathieu. (2015). Resistance of benthic intertidal communities to multiple disturbances and stresses. Marine Ecology Progress Series, 534, p. 49-64. Océanographie Biologie et autres sciences connexes Article publié dans une revue avec comité d'évaluation PeerReviewed 2015 ftunivquebecchic https://doi.org/10.3354/meps11359 2021-03-08T12:02:40Z Many ecosystems are facing biodiversity loss and environmental change due to anthropogenic activities, with these impacts occurring within the context of natural disturbance. Understanding ecosystem functioning and the response of communities to these impacts is necessary in order to evaluate the effects of future environmental change. The aim of this study was to determine the consequences of the loss of key species on the structure and function of intertidal communities in a context of nutrient enrichment, so as to ascertain the resistance of these communities when disturbance and stresses are compounded. Subarctic rocky intertidal communities in Quebec were subjected to an orthogonal factorial field experiment with 3 stress factors (macroalgae canopy loss, grazer exclusion, and nutrient enrichment), each with 2 disturbance levels. Simple and interactive effects of these factors were followed for 4 mo, and responses in structure (% cover and biomass) and productivity were evaluated. The communities that were not subjected to canopy loss showed greater resistance and very limited effects from enrichment and grazer reduction. The loss of canopy altered the community structure (e.g. reduction in richness and biomass) and functioning (reduced productivity), probably due to increased temperatures and desiccation. This lack of resistance was amplified through the addition of a stress. The application of multiple stresses within field experiments allows for a better understanding of the mechanisms affecting community structure and ecosystem functioning under situations of increased natural and anthropogenic stress. Text Subarctic Université du Québec à Chicoutimi (UQAC): Constellation Marine Ecology Progress Series 534 49 64 |
institution |
Open Polar |
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Université du Québec à Chicoutimi (UQAC): Constellation |
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ftunivquebecchic |
language |
English |
topic |
Océanographie Biologie et autres sciences connexes |
spellingShingle |
Océanographie Biologie et autres sciences connexes Joseph, Laetitia Cusson, Mathieu Resistance of benthic intertidal communities to multiple disturbances and stresses |
topic_facet |
Océanographie Biologie et autres sciences connexes |
description |
Many ecosystems are facing biodiversity loss and environmental change due to anthropogenic activities, with these impacts occurring within the context of natural disturbance. Understanding ecosystem functioning and the response of communities to these impacts is necessary in order to evaluate the effects of future environmental change. The aim of this study was to determine the consequences of the loss of key species on the structure and function of intertidal communities in a context of nutrient enrichment, so as to ascertain the resistance of these communities when disturbance and stresses are compounded. Subarctic rocky intertidal communities in Quebec were subjected to an orthogonal factorial field experiment with 3 stress factors (macroalgae canopy loss, grazer exclusion, and nutrient enrichment), each with 2 disturbance levels. Simple and interactive effects of these factors were followed for 4 mo, and responses in structure (% cover and biomass) and productivity were evaluated. The communities that were not subjected to canopy loss showed greater resistance and very limited effects from enrichment and grazer reduction. The loss of canopy altered the community structure (e.g. reduction in richness and biomass) and functioning (reduced productivity), probably due to increased temperatures and desiccation. This lack of resistance was amplified through the addition of a stress. The application of multiple stresses within field experiments allows for a better understanding of the mechanisms affecting community structure and ecosystem functioning under situations of increased natural and anthropogenic stress. |
format |
Text |
author |
Joseph, Laetitia Cusson, Mathieu |
author_facet |
Joseph, Laetitia Cusson, Mathieu |
author_sort |
Joseph, Laetitia |
title |
Resistance of benthic intertidal communities to multiple disturbances and stresses |
title_short |
Resistance of benthic intertidal communities to multiple disturbances and stresses |
title_full |
Resistance of benthic intertidal communities to multiple disturbances and stresses |
title_fullStr |
Resistance of benthic intertidal communities to multiple disturbances and stresses |
title_full_unstemmed |
Resistance of benthic intertidal communities to multiple disturbances and stresses |
title_sort |
resistance of benthic intertidal communities to multiple disturbances and stresses |
publishDate |
2015 |
url |
https://constellation.uqac.ca/3362/1/Joseph_Cusson_post-proof_meps2015_complet.pdf https://constellation.uqac.ca/3362/19/Cusson_et_Joseph_MEPS_2015.pdf https://constellation.uqac.ca/3362/20/Cusson_et_Joseph_MEPS_2015_supplement.pdf |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://constellation.uqac.ca/3362/ http://dx.doi.org/doi:10.3354/meps11359 https://constellation.uqac.ca/3362/1/Joseph_Cusson_post-proof_meps2015_complet.pdf https://constellation.uqac.ca/3362/19/Cusson_et_Joseph_MEPS_2015.pdf https://constellation.uqac.ca/3362/20/Cusson_et_Joseph_MEPS_2015_supplement.pdf Joseph Laetitia et Cusson Mathieu. (2015). Resistance of benthic intertidal communities to multiple disturbances and stresses. Marine Ecology Progress Series, 534, p. 49-64. |
op_doi |
https://doi.org/10.3354/meps11359 |
container_title |
Marine Ecology Progress Series |
container_volume |
534 |
container_start_page |
49 |
op_container_end_page |
64 |
_version_ |
1766211020334825472 |