A global synthesis of human impacts on the multifunctionality of streams and rivers
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/100256 https://doi.org/10.1111/gcb.16210 |
Resumo: | Human impacts, particularly nutrient pollution and land-use change, have caused significant declines in the quality and quantity of freshwater resources. Most global assessments have concentrated on species diversity and composition, but effects on the multifunctionality of streams and rivers remain unclear. Here, we analyse the most comprehensive compilation of stream ecosystem functions to date to provide an overview of the responses of nutrient uptake, leaf litter decomposition, ecosystem productivity, and food web complexity to six globally pervasive human stressors. We show that human stressors inhibited ecosystem functioning for most stressor-function pairs. Nitrate uptake efficiency was most affected and was inhibited by 347% due to agriculture. However, concomitant negative and positive effects were common even within a given stressor-function pair. Some part of this variability in effect direction could be explained by the structural heterogeneity of the landscape and latitudinal position of the streams. Ranking human stressors by their absolute effects on ecosystem multifunctionality revealed significant effects for all studied stressors, with wastewater effluents (194%), agriculture (148%), and urban land use (137%) having the strongest effects. Our results demonstrate that we are at risk of losing the functional backbone of streams and rivers if human stressors persist in contemporary intensity, and that freshwaters are losing critical ecosystem services that humans rely on. We advocate for more studies on the effects of multiple stressors on ecosystem multifunctionality to improve the functional understanding of human impacts. Finally, freshwater management must shift its focus toward an ecological function-based approach and needs to develop strategies for maintaining or restoring ecosystem functioning of streams and rivers. |
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A global synthesis of human impacts on the multifunctionality of streams and riversfood websleaf litter decompositionmeta-analysismultiple stressorsnutrient uptakesecondary productionwhole-stream metabolismHuman impacts, particularly nutrient pollution and land-use change, have caused significant declines in the quality and quantity of freshwater resources. Most global assessments have concentrated on species diversity and composition, but effects on the multifunctionality of streams and rivers remain unclear. Here, we analyse the most comprehensive compilation of stream ecosystem functions to date to provide an overview of the responses of nutrient uptake, leaf litter decomposition, ecosystem productivity, and food web complexity to six globally pervasive human stressors. We show that human stressors inhibited ecosystem functioning for most stressor-function pairs. Nitrate uptake efficiency was most affected and was inhibited by 347% due to agriculture. However, concomitant negative and positive effects were common even within a given stressor-function pair. Some part of this variability in effect direction could be explained by the structural heterogeneity of the landscape and latitudinal position of the streams. Ranking human stressors by their absolute effects on ecosystem multifunctionality revealed significant effects for all studied stressors, with wastewater effluents (194%), agriculture (148%), and urban land use (137%) having the strongest effects. Our results demonstrate that we are at risk of losing the functional backbone of streams and rivers if human stressors persist in contemporary intensity, and that freshwaters are losing critical ecosystem services that humans rely on. We advocate for more studies on the effects of multiple stressors on ecosystem multifunctionality to improve the functional understanding of human impacts. Finally, freshwater management must shift its focus toward an ecological function-based approach and needs to develop strategies for maintaining or restoring ecosystem functioning of streams and rivers.Generalitat de Catalunya, Grant/Award Number: 2017SGR0976; Portuguese Foundation for Science and Technology, Grant/Award Number: CEEIND/02484/2018 and UIDP/04292/2020Wiley2022-05-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/100256http://hdl.handle.net/10316/100256https://doi.org/10.1111/gcb.16210eng1354-10131365-2486Brauns, MarioAllen, Daniel CBoëchat, Iola GCross, Wyatt FFerreira, VerónicaGraeber, DanielPatrick, Christopher JPeipoch, Marcvon Schiller, DanielGücker, Björninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-02T20:30:14Zoai:estudogeral.uc.pt:10316/100256Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:17:41.153760Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
title |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
spellingShingle |
A global synthesis of human impacts on the multifunctionality of streams and rivers Brauns, Mario food webs leaf litter decomposition meta-analysis multiple stressors nutrient uptake secondary production whole-stream metabolism |
title_short |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
title_full |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
title_fullStr |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
title_full_unstemmed |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
title_sort |
A global synthesis of human impacts on the multifunctionality of streams and rivers |
author |
Brauns, Mario |
author_facet |
Brauns, Mario Allen, Daniel C Boëchat, Iola G Cross, Wyatt F Ferreira, Verónica Graeber, Daniel Patrick, Christopher J Peipoch, Marc von Schiller, Daniel Gücker, Björn |
author_role |
author |
author2 |
Allen, Daniel C Boëchat, Iola G Cross, Wyatt F Ferreira, Verónica Graeber, Daniel Patrick, Christopher J Peipoch, Marc von Schiller, Daniel Gücker, Björn |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Brauns, Mario Allen, Daniel C Boëchat, Iola G Cross, Wyatt F Ferreira, Verónica Graeber, Daniel Patrick, Christopher J Peipoch, Marc von Schiller, Daniel Gücker, Björn |
dc.subject.por.fl_str_mv |
food webs leaf litter decomposition meta-analysis multiple stressors nutrient uptake secondary production whole-stream metabolism |
topic |
food webs leaf litter decomposition meta-analysis multiple stressors nutrient uptake secondary production whole-stream metabolism |
description |
Human impacts, particularly nutrient pollution and land-use change, have caused significant declines in the quality and quantity of freshwater resources. Most global assessments have concentrated on species diversity and composition, but effects on the multifunctionality of streams and rivers remain unclear. Here, we analyse the most comprehensive compilation of stream ecosystem functions to date to provide an overview of the responses of nutrient uptake, leaf litter decomposition, ecosystem productivity, and food web complexity to six globally pervasive human stressors. We show that human stressors inhibited ecosystem functioning for most stressor-function pairs. Nitrate uptake efficiency was most affected and was inhibited by 347% due to agriculture. However, concomitant negative and positive effects were common even within a given stressor-function pair. Some part of this variability in effect direction could be explained by the structural heterogeneity of the landscape and latitudinal position of the streams. Ranking human stressors by their absolute effects on ecosystem multifunctionality revealed significant effects for all studied stressors, with wastewater effluents (194%), agriculture (148%), and urban land use (137%) having the strongest effects. Our results demonstrate that we are at risk of losing the functional backbone of streams and rivers if human stressors persist in contemporary intensity, and that freshwaters are losing critical ecosystem services that humans rely on. We advocate for more studies on the effects of multiple stressors on ecosystem multifunctionality to improve the functional understanding of human impacts. Finally, freshwater management must shift its focus toward an ecological function-based approach and needs to develop strategies for maintaining or restoring ecosystem functioning of streams and rivers. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-17 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/100256 http://hdl.handle.net/10316/100256 https://doi.org/10.1111/gcb.16210 |
url |
http://hdl.handle.net/10316/100256 https://doi.org/10.1111/gcb.16210 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1354-1013 1365-2486 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134072300109825 |