Food web model of the Upper Paraná River Floodplain: description and aggregation effects
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/30801 |
Resumo: | To describe the Upper Paraná River Floodplain (the last non-dammed stretch of the Paraná River, Brazil) a food web model was quantified using ECOPATH. The modeled ecosystem showed maturity because of the total primary production/total respiration ratio (close to 2), Finn’s cycling index (7%) and overhead (65%). The first model elaborated had 40 compartments/groups, but its transfer efficiencies among trophic levels did not reduce in despite the trophic level increasing. To solve this, the effect of two grouping methods on system-level information and other ecosystem attributes was investigated. The first series tested, named “classic” (researcher intuitive way and by food preferences) also did not reduce transfer efficiencies. In the second series, named “by pathways”, the first species grouping were those with higher number of input pathways and longest mean length of pathways. Thereby, the news groups from aggregation decreased the number of components and system’s richness, but stability (measured by overhead) did not change, including the model with only eight compartments. The great number of the ten compartments that showed these characteristics was piscivores, increasing the redundancy within highest trophic level. The use of pathways (number and length) can be useful to lumping species since it reduces compartments and do compromise neither maturity nor stability, diminishing grouping subjectivity |
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Angelini, RonaldoAgostinho, Angelo Antonio2020-12-01T00:32:24Z2020-12-01T00:32:24Z2005ANGELINI, R.; AGOSTINHO, Angelo Antonio . Food web model of the Upper Paraná River Floodplain: description and aggregation effects. Ecological Modelling, Holanda, v. 181, n.2-3, p. 109-121, 2005. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0304380004003606. Acesso em: 19 nov. 2020. https://doi.org/10.1016/j.ecolmodel.2004.06.0250304-3800https://repositorio.ufrn.br/handle/123456789/3080110.1016/j.ecolmodel.2004.06.025ElsevierMathematical modelsFood webAquatic ecosystemFloodplainEcopathFood web model of the Upper Paraná River Floodplain: description and aggregation effectsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleTo describe the Upper Paraná River Floodplain (the last non-dammed stretch of the Paraná River, Brazil) a food web model was quantified using ECOPATH. The modeled ecosystem showed maturity because of the total primary production/total respiration ratio (close to 2), Finn’s cycling index (7%) and overhead (65%). The first model elaborated had 40 compartments/groups, but its transfer efficiencies among trophic levels did not reduce in despite the trophic level increasing. To solve this, the effect of two grouping methods on system-level information and other ecosystem attributes was investigated. The first series tested, named “classic” (researcher intuitive way and by food preferences) also did not reduce transfer efficiencies. In the second series, named “by pathways”, the first species grouping were those with higher number of input pathways and longest mean length of pathways. Thereby, the news groups from aggregation decreased the number of components and system’s richness, but stability (measured by overhead) did not change, including the model with only eight compartments. The great number of the ten compartments that showed these characteristics was piscivores, increasing the redundancy within highest trophic level. The use of pathways (number and length) can be useful to lumping species since it reduces compartments and do compromise neither maturity nor stability, diminishing grouping subjectivityengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/30801/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30801/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTFoodWebModel_ANGELINI_2005.pdf.txtFoodWebModel_ANGELINI_2005.pdf.txtExtracted texttext/plain41723https://repositorio.ufrn.br/bitstream/123456789/30801/4/FoodWebModel_ANGELINI_2005.pdf.txt59668fbb0fc7a9132dba9d67e99827b5MD54THUMBNAILFoodWebModel_ANGELINI_2005.pdf.jpgFoodWebModel_ANGELINI_2005.pdf.jpgGenerated Thumbnailimage/jpeg1719https://repositorio.ufrn.br/bitstream/123456789/30801/5/FoodWebModel_ANGELINI_2005.pdf.jpg6fd018b307b483a698c121e80127117aMD55123456789/308012023-02-02 18:22:36.864oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2023-02-02T21:22:36Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
title |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
spellingShingle |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects Angelini, Ronaldo Mathematical models Food web Aquatic ecosystem Floodplain Ecopath |
title_short |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
title_full |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
title_fullStr |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
title_full_unstemmed |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
title_sort |
Food web model of the Upper Paraná River Floodplain: description and aggregation effects |
author |
Angelini, Ronaldo |
author_facet |
Angelini, Ronaldo Agostinho, Angelo Antonio |
author_role |
author |
author2 |
Agostinho, Angelo Antonio |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Angelini, Ronaldo Agostinho, Angelo Antonio |
dc.subject.por.fl_str_mv |
Mathematical models Food web Aquatic ecosystem Floodplain Ecopath |
topic |
Mathematical models Food web Aquatic ecosystem Floodplain Ecopath |
description |
To describe the Upper Paraná River Floodplain (the last non-dammed stretch of the Paraná River, Brazil) a food web model was quantified using ECOPATH. The modeled ecosystem showed maturity because of the total primary production/total respiration ratio (close to 2), Finn’s cycling index (7%) and overhead (65%). The first model elaborated had 40 compartments/groups, but its transfer efficiencies among trophic levels did not reduce in despite the trophic level increasing. To solve this, the effect of two grouping methods on system-level information and other ecosystem attributes was investigated. The first series tested, named “classic” (researcher intuitive way and by food preferences) also did not reduce transfer efficiencies. In the second series, named “by pathways”, the first species grouping were those with higher number of input pathways and longest mean length of pathways. Thereby, the news groups from aggregation decreased the number of components and system’s richness, but stability (measured by overhead) did not change, including the model with only eight compartments. The great number of the ten compartments that showed these characteristics was piscivores, increasing the redundancy within highest trophic level. The use of pathways (number and length) can be useful to lumping species since it reduces compartments and do compromise neither maturity nor stability, diminishing grouping subjectivity |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2020-12-01T00:32:24Z |
dc.date.available.fl_str_mv |
2020-12-01T00:32:24Z |
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.citation.fl_str_mv |
ANGELINI, R.; AGOSTINHO, Angelo Antonio . Food web model of the Upper Paraná River Floodplain: description and aggregation effects. Ecological Modelling, Holanda, v. 181, n.2-3, p. 109-121, 2005. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0304380004003606. Acesso em: 19 nov. 2020. https://doi.org/10.1016/j.ecolmodel.2004.06.025 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/30801 |
dc.identifier.issn.none.fl_str_mv |
0304-3800 |
dc.identifier.doi.none.fl_str_mv |
10.1016/j.ecolmodel.2004.06.025 |
identifier_str_mv |
ANGELINI, R.; AGOSTINHO, Angelo Antonio . Food web model of the Upper Paraná River Floodplain: description and aggregation effects. Ecological Modelling, Holanda, v. 181, n.2-3, p. 109-121, 2005. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0304380004003606. Acesso em: 19 nov. 2020. https://doi.org/10.1016/j.ecolmodel.2004.06.025 0304-3800 10.1016/j.ecolmodel.2004.06.025 |
url |
https://repositorio.ufrn.br/handle/123456789/30801 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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