Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon

Detalhes bibliográficos
Autor(a) principal: Röpke, Cristhiana Paula
Data de Publicação: 2017
Outros Autores: Amadio, Sidinéia Aparecida, Zuanon, Jansen, Ferreira, Efrem J.G., Deus, C. P., Pires, Tiago H.S., Winemiller, Kirk O.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/15221
Resumo: Combined effects of climate change and deforestation have altered precipitation patterns in the Amazon. This has led to changes in the frequency of extreme events of flood and drought in recent decades and in the magnitude of the annual flood pulse, a phenomenon that influences virtually all aspects of river-floodplain ecosystem dynamics. Analysis of long-term data revealed abrupt and synchronous changes in hydrology and fish assemblage structure of a floodplain lake near the confluence of Amazon and Negro rivers. After an intense drought in 2005, the assemblage assumed a different and fairly persistent taxonomic composition and functional structure. Declines in abundance after 2005 were more pronounced for species of all sizes having equilibrium life history strategy, large species with periodic life history strategy, and for all trophic levels except primary consumers. Our results suggest that the extreme drought triggered changes in the fish assemblage and subsequent anomalous hydrological conditions have hampered assemblage recovery. These findings stress the need to account for climatic-driven hydrological changes in conservation efforts addressing aquatic biodiversity and fishery resources in the central Amazon. © The Author(s) 2017.
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spelling Röpke, Cristhiana PaulaAmadio, Sidinéia AparecidaZuanon, JansenFerreira, Efrem J.G.Deus, C. P.Pires, Tiago H.S.Winemiller, Kirk O.2020-05-07T14:14:48Z2020-05-07T14:14:48Z2017https://repositorio.inpa.gov.br/handle/1/1522110.1038/srep40170Combined effects of climate change and deforestation have altered precipitation patterns in the Amazon. This has led to changes in the frequency of extreme events of flood and drought in recent decades and in the magnitude of the annual flood pulse, a phenomenon that influences virtually all aspects of river-floodplain ecosystem dynamics. Analysis of long-term data revealed abrupt and synchronous changes in hydrology and fish assemblage structure of a floodplain lake near the confluence of Amazon and Negro rivers. After an intense drought in 2005, the assemblage assumed a different and fairly persistent taxonomic composition and functional structure. Declines in abundance after 2005 were more pronounced for species of all sizes having equilibrium life history strategy, large species with periodic life history strategy, and for all trophic levels except primary consumers. Our results suggest that the extreme drought triggered changes in the fish assemblage and subsequent anomalous hydrological conditions have hampered assemblage recovery. These findings stress the need to account for climatic-driven hydrological changes in conservation efforts addressing aquatic biodiversity and fishery resources in the central Amazon. © The Author(s) 2017.Volume 7Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBiodiversityConsumerDroughtFisheryFloodplainHumanHydrologyLife HistorySpeciesStressStructure Activity RelationTrophic LevelAnimalsBiotaClassificationClimate ChangeEnvironmental ProtectionFishFloodingGrowth, Development And AgingLakeLongitudinal StudyRiverWater CycleAnimalBiotaClimate ChangeConservation Of Natural ResourcesFishesFloodsLakesLongitudinal StudiesRiversWater CycleSimultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazoninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleScientific Reportsengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf4229464https://repositorio.inpa.gov.br/bitstream/1/15221/1/artigo-inpa.pdf32bbf8326d921a7112f3c96ec9686ed0MD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/15221/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/152212020-07-14 10:59:19.627oai:repositorio:1/15221Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T14:59:19Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
title Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
spellingShingle Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
Röpke, Cristhiana Paula
Biodiversity
Consumer
Drought
Fishery
Floodplain
Human
Hydrology
Life History
Species
Stress
Structure Activity Relation
Trophic Level
Animals
Biota
Classification
Climate Change
Environmental Protection
Fish
Flooding
Growth, Development And Aging
Lake
Longitudinal Study
River
Water Cycle
Animal
Biota
Climate Change
Conservation Of Natural Resources
Fishes
Floods
Lakes
Longitudinal Studies
Rivers
Water Cycle
title_short Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
title_full Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
title_fullStr Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
title_full_unstemmed Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
title_sort Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floodplain lake in the central Amazon
author Röpke, Cristhiana Paula
author_facet Röpke, Cristhiana Paula
Amadio, Sidinéia Aparecida
Zuanon, Jansen
Ferreira, Efrem J.G.
Deus, C. P.
Pires, Tiago H.S.
Winemiller, Kirk O.
author_role author
author2 Amadio, Sidinéia Aparecida
Zuanon, Jansen
Ferreira, Efrem J.G.
Deus, C. P.
Pires, Tiago H.S.
Winemiller, Kirk O.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Röpke, Cristhiana Paula
Amadio, Sidinéia Aparecida
Zuanon, Jansen
Ferreira, Efrem J.G.
Deus, C. P.
Pires, Tiago H.S.
Winemiller, Kirk O.
dc.subject.eng.fl_str_mv Biodiversity
Consumer
Drought
Fishery
Floodplain
Human
Hydrology
Life History
Species
Stress
Structure Activity Relation
Trophic Level
Animals
Biota
Classification
Climate Change
Environmental Protection
Fish
Flooding
Growth, Development And Aging
Lake
Longitudinal Study
River
Water Cycle
Animal
Biota
Climate Change
Conservation Of Natural Resources
Fishes
Floods
Lakes
Longitudinal Studies
Rivers
Water Cycle
topic Biodiversity
Consumer
Drought
Fishery
Floodplain
Human
Hydrology
Life History
Species
Stress
Structure Activity Relation
Trophic Level
Animals
Biota
Classification
Climate Change
Environmental Protection
Fish
Flooding
Growth, Development And Aging
Lake
Longitudinal Study
River
Water Cycle
Animal
Biota
Climate Change
Conservation Of Natural Resources
Fishes
Floods
Lakes
Longitudinal Studies
Rivers
Water Cycle
description Combined effects of climate change and deforestation have altered precipitation patterns in the Amazon. This has led to changes in the frequency of extreme events of flood and drought in recent decades and in the magnitude of the annual flood pulse, a phenomenon that influences virtually all aspects of river-floodplain ecosystem dynamics. Analysis of long-term data revealed abrupt and synchronous changes in hydrology and fish assemblage structure of a floodplain lake near the confluence of Amazon and Negro rivers. After an intense drought in 2005, the assemblage assumed a different and fairly persistent taxonomic composition and functional structure. Declines in abundance after 2005 were more pronounced for species of all sizes having equilibrium life history strategy, large species with periodic life history strategy, and for all trophic levels except primary consumers. Our results suggest that the extreme drought triggered changes in the fish assemblage and subsequent anomalous hydrological conditions have hampered assemblage recovery. These findings stress the need to account for climatic-driven hydrological changes in conservation efforts addressing aquatic biodiversity and fishery resources in the central Amazon. © The Author(s) 2017.
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2020-05-07T14:14:48Z
dc.date.available.fl_str_mv 2020-05-07T14:14:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv https://repositorio.inpa.gov.br/handle/1/15221
dc.identifier.doi.none.fl_str_mv 10.1038/srep40170
url https://repositorio.inpa.gov.br/handle/1/15221
identifier_str_mv 10.1038/srep40170
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Volume 7
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
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publisher.none.fl_str_mv Scientific Reports
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institution INPA
reponame_str Repositório Institucional do INPA
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