Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects

Abstract Stressors associated with global change will be experienced simultaneously and may act synergistically, so attempts to estimate the capacity of marine systems to cope with global change requires a multi-stressor approach. Because recent evidence suggests that stressor effects can be context...

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Autores principales:	Rolanda Lange, Dustin Marshall
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0683663ef0534853849238cb9e5d26f7
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spelling	oai:doaj.org-article:0683663ef0534853849238cb9e5d26f72021-12-02T12:32:49ZEcologically relevant levels of multiple, common marine stressors suggest antagonistic effects10.1038/s41598-017-06373-y2045-2322https://doaj.org/article/0683663ef0534853849238cb9e5d26f72017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06373-yhttps://doaj.org/toc/2045-2322Abstract Stressors associated with global change will be experienced simultaneously and may act synergistically, so attempts to estimate the capacity of marine systems to cope with global change requires a multi-stressor approach. Because recent evidence suggests that stressor effects can be context-dependent, estimates of how stressors are experienced in ecologically realistic settings will be particularly valuable. To enhance our understanding of the interplay between environmental effects and the impact of multiple stressors from both natural and anthropogenic sources, we conducted a field experiment. We explored the impact of multiple, functionally varied stressors from both natural and anthropogenic sources experienced during early life history in a common sessile marine invertebrate, Bugula neritina. Natural spatial environmental variation induced differences in conspecific densities, allowing us to test for density-driven context-dependence of stressor effects. We indeed found density-dependent effects. Under high conspecific density, individual survival increased, which offset part of the negative effects of experiencing stressors. Experiencing multiple stressors early in life history translated to a decreased survival in the field, albeit the effects were not as drastic as we expected: our results are congruent with antagonistic stressor effects. We speculate that when individual stressors are more subtle, stressor synergies become less common.Rolanda LangeDustin MarshallNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rolanda Lange Dustin Marshall Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
description	Abstract Stressors associated with global change will be experienced simultaneously and may act synergistically, so attempts to estimate the capacity of marine systems to cope with global change requires a multi-stressor approach. Because recent evidence suggests that stressor effects can be context-dependent, estimates of how stressors are experienced in ecologically realistic settings will be particularly valuable. To enhance our understanding of the interplay between environmental effects and the impact of multiple stressors from both natural and anthropogenic sources, we conducted a field experiment. We explored the impact of multiple, functionally varied stressors from both natural and anthropogenic sources experienced during early life history in a common sessile marine invertebrate, Bugula neritina. Natural spatial environmental variation induced differences in conspecific densities, allowing us to test for density-driven context-dependence of stressor effects. We indeed found density-dependent effects. Under high conspecific density, individual survival increased, which offset part of the negative effects of experiencing stressors. Experiencing multiple stressors early in life history translated to a decreased survival in the field, albeit the effects were not as drastic as we expected: our results are congruent with antagonistic stressor effects. We speculate that when individual stressors are more subtle, stressor synergies become less common.
format	article
author	Rolanda Lange Dustin Marshall
author_facet	Rolanda Lange Dustin Marshall
author_sort	Rolanda Lange
title	Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
title_short	Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
title_full	Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
title_fullStr	Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
title_full_unstemmed	Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
title_sort	ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0683663ef0534853849238cb9e5d26f7
work_keys_str_mv	AT rolandalange ecologicallyrelevantlevelsofmultiplecommonmarinestressorssuggestantagonisticeffects AT dustinmarshall ecologicallyrelevantlevelsofmultiplecommonmarinestressorssuggestantagonisticeffects
_version_	1718393958413893632

Ecologically relevant levels of multiple, common marine stressors suggest antagonistic effects

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