A conceptual model of litter breakdown in low order streams
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
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/10316/98689 https://doi.org/10.1002/iroh.201401757 |
Resumo: | The detrital-based food web of many streams and rivers plays a fundamental role in the cycling and retention of carbon and nutrients. However, we still need to understand which global mechanisms underlie the biogeochemical pathways that control energy transfer from the detrital pool through local food webs into nutrient and energy cycles and storage. Previous attempts to understandthe variability in litter breakdown rateshave includedthe searchforlatitudinal variation patterns and analysis of the influence of different factors. Here we complement those studies by developing a conceptual model to predict litter breakdown dynamics in low order streams. According to the model, litter breakdown rates and the relative role of microbial decomposers and shredder detritivores on this process are hierarchically governed by interactions between climate/ hydrology and geology acting upon plant traits, nutrient and leaf availability to decomposers, and metabolism of microbial decomposers and shredders. The model explains variations in leaf litter breakdown rates and shredder abundance across large geographic areas, allowing the formulation of predictions of how anthropogenic pressures may affect litter breakdown rates. |
id |
RCAP_adde81b23108846959fc40bb89266436 |
---|---|
oai_identifier_str |
oai:estudogeral.uc.pt:10316/98689 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
A conceptual model of litter breakdown in low order streamsDecompositionOrganic matterProcessingStreamsShreddersAquatic hyphomycetesThe detrital-based food web of many streams and rivers plays a fundamental role in the cycling and retention of carbon and nutrients. However, we still need to understand which global mechanisms underlie the biogeochemical pathways that control energy transfer from the detrital pool through local food webs into nutrient and energy cycles and storage. Previous attempts to understandthe variability in litter breakdown rateshave includedthe searchforlatitudinal variation patterns and analysis of the influence of different factors. Here we complement those studies by developing a conceptual model to predict litter breakdown dynamics in low order streams. According to the model, litter breakdown rates and the relative role of microbial decomposers and shredder detritivores on this process are hierarchically governed by interactions between climate/ hydrology and geology acting upon plant traits, nutrient and leaf availability to decomposers, and metabolism of microbial decomposers and shredders. The model explains variations in leaf litter breakdown rates and shredder abundance across large geographic areas, allowing the formulation of predictions of how anthropogenic pressures may affect litter breakdown rates.3F10-AC72-52D0 | Verónica Ferreirainfo:eu-repo/semantics/publishedVersion2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/98689http://hdl.handle.net/10316/98689https://doi.org/10.1002/iroh.201401757eng2-s2.0-84920972500cv-prod-702506Graça, Manuel A. S.Ferreira, VerónicaCanhoto, CristinaEncalada, Andrea C.Guerrero-Bolaño, FranciscoWantzen, Karl M.Boyero, Luzinfo: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:RCAAP2022-02-09T11:37:54Zoai:estudogeral.uc.pt:10316/98689Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:16:26.805520Repositório 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 conceptual model of litter breakdown in low order streams |
title |
A conceptual model of litter breakdown in low order streams |
spellingShingle |
A conceptual model of litter breakdown in low order streams Graça, Manuel A. S. Decomposition Organic matter Processing Streams Shredders Aquatic hyphomycetes |
title_short |
A conceptual model of litter breakdown in low order streams |
title_full |
A conceptual model of litter breakdown in low order streams |
title_fullStr |
A conceptual model of litter breakdown in low order streams |
title_full_unstemmed |
A conceptual model of litter breakdown in low order streams |
title_sort |
A conceptual model of litter breakdown in low order streams |
author |
Graça, Manuel A. S. |
author_facet |
Graça, Manuel A. S. Ferreira, Verónica Canhoto, Cristina Encalada, Andrea C. Guerrero-Bolaño, Francisco Wantzen, Karl M. Boyero, Luz |
author_role |
author |
author2 |
Ferreira, Verónica Canhoto, Cristina Encalada, Andrea C. Guerrero-Bolaño, Francisco Wantzen, Karl M. Boyero, Luz |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Graça, Manuel A. S. Ferreira, Verónica Canhoto, Cristina Encalada, Andrea C. Guerrero-Bolaño, Francisco Wantzen, Karl M. Boyero, Luz |
dc.subject.por.fl_str_mv |
Decomposition Organic matter Processing Streams Shredders Aquatic hyphomycetes |
topic |
Decomposition Organic matter Processing Streams Shredders Aquatic hyphomycetes |
description |
The detrital-based food web of many streams and rivers plays a fundamental role in the cycling and retention of carbon and nutrients. However, we still need to understand which global mechanisms underlie the biogeochemical pathways that control energy transfer from the detrital pool through local food webs into nutrient and energy cycles and storage. Previous attempts to understandthe variability in litter breakdown rateshave includedthe searchforlatitudinal variation patterns and analysis of the influence of different factors. Here we complement those studies by developing a conceptual model to predict litter breakdown dynamics in low order streams. According to the model, litter breakdown rates and the relative role of microbial decomposers and shredder detritivores on this process are hierarchically governed by interactions between climate/ hydrology and geology acting upon plant traits, nutrient and leaf availability to decomposers, and metabolism of microbial decomposers and shredders. The model explains variations in leaf litter breakdown rates and shredder abundance across large geographic areas, allowing the formulation of predictions of how anthropogenic pressures may affect litter breakdown rates. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 |
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/10316/98689 http://hdl.handle.net/10316/98689 https://doi.org/10.1002/iroh.201401757 |
url |
http://hdl.handle.net/10316/98689 https://doi.org/10.1002/iroh.201401757 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2-s2.0-84920972500 cv-prod-702506 |
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 |
instname_str |
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 |
|
_version_ |
1799134060696567808 |