Continental-scale effects of nutrient pollution on stream ecosystem functioning
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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/10316/98712 https://doi.org/10.1126/science.1219534 |
Resumo: | Excessive nutrient loading is a major threat to aquatic ecosystems worldwide that leads to profound changes in aquatic biodiversity and biogeochemical processes. Systematic quantitative assessment of functional ecosystem measures for river networks is, however, lacking, especially at continental scales. Here, we narrow this gap by means of a pan-European field experiment on a fundamental ecosystem process—leaf-litter breakdown—in 100 streams across a greater than 1000-fold nutrient gradient. Dramatically slowed breakdown at both extremes of the gradient indicated strong nutrient limitation in unaffected systems, potential for strong stimulation in moderately altered systems, and inhibition in highly polluted streams. This large-scale response pattern emphasizes the need to complement established structural approaches (such as water chemistry, hydrogeomorphology, and biological diversity metrics) with functional measures (such as litter-breakdown rate, whole-system metabolism, and nutrient spiraling) for assessing ecosystem health. |
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spelling |
Continental-scale effects of nutrient pollution on stream ecosystem functioningExcessive nutrient loading is a major threat to aquatic ecosystems worldwide that leads to profound changes in aquatic biodiversity and biogeochemical processes. Systematic quantitative assessment of functional ecosystem measures for river networks is, however, lacking, especially at continental scales. Here, we narrow this gap by means of a pan-European field experiment on a fundamental ecosystem process—leaf-litter breakdown—in 100 streams across a greater than 1000-fold nutrient gradient. Dramatically slowed breakdown at both extremes of the gradient indicated strong nutrient limitation in unaffected systems, potential for strong stimulation in moderately altered systems, and inhibition in highly polluted streams. This large-scale response pattern emphasizes the need to complement established structural approaches (such as water chemistry, hydrogeomorphology, and biological diversity metrics) with functional measures (such as litter-breakdown rate, whole-system metabolism, and nutrient spiraling) for assessing ecosystem health.3F10-AC72-52D0 | Verónica Ferreirainfo:eu-repo/semantics/publishedVersion2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/98712http://hdl.handle.net/10316/98712https://doi.org/10.1126/science.1219534eng2-s2.0-84862302017cv-prod-702518Woodward, GuyGessner, Mark O.Giller, Paul S.Gulis, VladislavHladyz, SallyLecerf, AntoineMalmqvist, B.Ferreira, VerónicaGraça, Manuel A. S.et al.info: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:RCAAP2022-02-08T12:02:51Zoai:estudogeral.uc.pt:10316/98712Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:16:27.543514Repositório 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 |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
title |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
spellingShingle |
Continental-scale effects of nutrient pollution on stream ecosystem functioning Woodward, Guy |
title_short |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
title_full |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
title_fullStr |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
title_full_unstemmed |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
title_sort |
Continental-scale effects of nutrient pollution on stream ecosystem functioning |
author |
Woodward, Guy |
author_facet |
Woodward, Guy Gessner, Mark O. Giller, Paul S. Gulis, Vladislav Hladyz, Sally Lecerf, Antoine Malmqvist, B. Ferreira, Verónica Graça, Manuel A. S. et al. |
author_role |
author |
author2 |
Gessner, Mark O. Giller, Paul S. Gulis, Vladislav Hladyz, Sally Lecerf, Antoine Malmqvist, B. Ferreira, Verónica Graça, Manuel A. S. et al. |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Woodward, Guy Gessner, Mark O. Giller, Paul S. Gulis, Vladislav Hladyz, Sally Lecerf, Antoine Malmqvist, B. Ferreira, Verónica Graça, Manuel A. S. et al. |
description |
Excessive nutrient loading is a major threat to aquatic ecosystems worldwide that leads to profound changes in aquatic biodiversity and biogeochemical processes. Systematic quantitative assessment of functional ecosystem measures for river networks is, however, lacking, especially at continental scales. Here, we narrow this gap by means of a pan-European field experiment on a fundamental ecosystem process—leaf-litter breakdown—in 100 streams across a greater than 1000-fold nutrient gradient. Dramatically slowed breakdown at both extremes of the gradient indicated strong nutrient limitation in unaffected systems, potential for strong stimulation in moderately altered systems, and inhibition in highly polluted streams. This large-scale response pattern emphasizes the need to complement established structural approaches (such as water chemistry, hydrogeomorphology, and biological diversity metrics) with functional measures (such as litter-breakdown rate, whole-system metabolism, and nutrient spiraling) for assessing ecosystem health. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 |
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/10316/98712 http://hdl.handle.net/10316/98712 https://doi.org/10.1126/science.1219534 |
url |
http://hdl.handle.net/10316/98712 https://doi.org/10.1126/science.1219534 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2-s2.0-84862302017 cv-prod-702518 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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