Biotic and abiotic variables influencing plant litter breakdown in streams: a global study
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/10316/98686 https://doi.org/10.1098/rspb.2015.2664 |
Resumo: | Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We present a global-scale study of litter breakdown in streams to compare the roles of biotic, climatic and other environmental factors on breakdown rates. We conducted an experiment in 24 streams encompassing latitudes from 47.88 N to 42.88 S, using litter mixtures of local species differing in quality and phylogenetic diversity (PD), and alder (Alnus glutinosa) to control for variation in litter traits. Our models revealed that breakdown of alder was driven by climate, with some influence of pH, whereas variation in breakdown of litter mixtures was explained mainly by litter quality and PD. Effects of litter quality and PD and stream pH were more positive at higher temperatures, indicating that different mechanisms may operate at different latitudes. These results reflect global variability caused by multiple factors, but unexplained variance points to the need for expanded global-scale comparisons. |
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Biotic and abiotic variables influencing plant litter breakdown in streams: a global studydecompositionlatitudinal gradientclimatelitter qualitybiodiversitydetritivore shreddersPlant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We present a global-scale study of litter breakdown in streams to compare the roles of biotic, climatic and other environmental factors on breakdown rates. We conducted an experiment in 24 streams encompassing latitudes from 47.88 N to 42.88 S, using litter mixtures of local species differing in quality and phylogenetic diversity (PD), and alder (Alnus glutinosa) to control for variation in litter traits. Our models revealed that breakdown of alder was driven by climate, with some influence of pH, whereas variation in breakdown of litter mixtures was explained mainly by litter quality and PD. Effects of litter quality and PD and stream pH were more positive at higher temperatures, indicating that different mechanisms may operate at different latitudes. These results reflect global variability caused by multiple factors, but unexplained variance points to the need for expanded global-scale comparisons.3F10-AC72-52D0 | Verónica Ferreirainfo:eu-repo/semantics/publishedVersion2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/98686http://hdl.handle.net/10316/98686https://doi.org/10.1098/rspb.2015.2664engcv-prod-702499WOS:000376158600002Boyero, LuzPearson, Richard G.Hui, CangGessner, Mark O.Perez, JavierAlexandrou, Markos A.Graça, Manuel A. S.Ferreira, Verónicaet 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:RCAAP2022-02-09T12:18:12Zoai:estudogeral.uc.pt:10316/98686Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:16:26.550810Repositório 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 |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
title |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
spellingShingle |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study Boyero, Luz decomposition latitudinal gradient climate litter quality biodiversity detritivore shredders |
title_short |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
title_full |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
title_fullStr |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
title_full_unstemmed |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
title_sort |
Biotic and abiotic variables influencing plant litter breakdown in streams: a global study |
author |
Boyero, Luz |
author_facet |
Boyero, Luz Pearson, Richard G. Hui, Cang Gessner, Mark O. Perez, Javier Alexandrou, Markos A. Graça, Manuel A. S. Ferreira, Verónica et al. |
author_role |
author |
author2 |
Pearson, Richard G. Hui, Cang Gessner, Mark O. Perez, Javier Alexandrou, Markos A. Graça, Manuel A. S. Ferreira, Verónica et al. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Boyero, Luz Pearson, Richard G. Hui, Cang Gessner, Mark O. Perez, Javier Alexandrou, Markos A. Graça, Manuel A. S. Ferreira, Verónica et al. |
dc.subject.por.fl_str_mv |
decomposition latitudinal gradient climate litter quality biodiversity detritivore shredders |
topic |
decomposition latitudinal gradient climate litter quality biodiversity detritivore shredders |
description |
Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We present a global-scale study of litter breakdown in streams to compare the roles of biotic, climatic and other environmental factors on breakdown rates. We conducted an experiment in 24 streams encompassing latitudes from 47.88 N to 42.88 S, using litter mixtures of local species differing in quality and phylogenetic diversity (PD), and alder (Alnus glutinosa) to control for variation in litter traits. Our models revealed that breakdown of alder was driven by climate, with some influence of pH, whereas variation in breakdown of litter mixtures was explained mainly by litter quality and PD. Effects of litter quality and PD and stream pH were more positive at higher temperatures, indicating that different mechanisms may operate at different latitudes. These results reflect global variability caused by multiple factors, but unexplained variance points to the need for expanded global-scale comparisons. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 |
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/10316/98686 http://hdl.handle.net/10316/98686 https://doi.org/10.1098/rspb.2015.2664 |
url |
http://hdl.handle.net/10316/98686 https://doi.org/10.1098/rspb.2015.2664 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
cv-prod-702499 WOS:000376158600002 |
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) |
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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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