Unexpected fish diversity gradients in the Amazon basin
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/15500 |
Resumo: | Using the most comprehensive fish occurrence database, we evaluated the importance of ecological and historical drivers in diversity patterns of subdrainage basins across the Amazon system. Linear models reveal the influence of climatic conditions, habitat size and sub-basin isolation on species diversity. Unexpectedly, the species richness model also highlighted a negative upriver-downriver gradient, contrary to predictions of increasing richness at more downriver locations along fluvial gradients. This reverse gradient may be linked to the history of the Amazon drainage network, which, after isolation as western and eastern basins throughout the Miocene, only began flowing eastward 1–9 million years (Ma) ago. Our results suggest that the main center of fish diversity was located westward, with fish dispersal progressing eastward after the basins were united and the Amazon River assumed its modern course toward the Atlantic. This dispersal process seems not yet achieved, suggesting a recent formation of the current Amazon system. Copyright © 2019 The Authors, |
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Oberdorff, ThierryDias, Murilo SversutJ?z?quel, C?lineAlbert, James SpurlingArantes, Caroline ChavesBigorne, RémyCarvajal-Valleros, Fernando M.Wever, Aaike deFrederico, Renata GuimarãesHidalgo, Max H.Hugueny, BernardLeprieur, FabienMabel, Maldonado,Maldonado-Ocampo, Javier AlejandroMartens, Koen M.Ortega, HernánJaime, Sarmiento,Tedesco, Pablo A.Torrente-Vilara, GisleneWinemiller, Kirk O.Zuanon, Jansen2020-05-14T16:04:20Z2020-05-14T16:04:20Z2019https://repositorio.inpa.gov.br/handle/1/1550010.1126/sciadv.aav8681Using the most comprehensive fish occurrence database, we evaluated the importance of ecological and historical drivers in diversity patterns of subdrainage basins across the Amazon system. Linear models reveal the influence of climatic conditions, habitat size and sub-basin isolation on species diversity. Unexpectedly, the species richness model also highlighted a negative upriver-downriver gradient, contrary to predictions of increasing richness at more downriver locations along fluvial gradients. This reverse gradient may be linked to the history of the Amazon drainage network, which, after isolation as western and eastern basins throughout the Miocene, only began flowing eastward 1–9 million years (Ma) ago. Our results suggest that the main center of fish diversity was located westward, with fish dispersal progressing eastward after the basins were united and the Amazon River assumed its modern course toward the Atlantic. This dispersal process seems not yet achieved, suggesting a recent formation of the current Amazon system. Copyright © 2019 The Authors,Volume 5, Número 9Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessCatchmentsAmazon BasinAmazon RiverClimatic ConditionsDrainage NetworksEastern BasinsMioceneSpecies RichnessSubbasinsFishClimateHabitatHumanMiocenePredictionRiverSpecies DiversitySpecies RichnessUnexpected fish diversity gradients in the Amazon basininfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleScience Advancesengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf654934https://repositorio.inpa.gov.br/bitstream/1/15500/1/artigo-inpa.pdfc597bce1832161508ee940cf90b1b08eMD511/155002020-07-14 11:24:16.229oai:repositorio:1/15500Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T15:24:16Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Unexpected fish diversity gradients in the Amazon basin |
title |
Unexpected fish diversity gradients in the Amazon basin |
spellingShingle |
Unexpected fish diversity gradients in the Amazon basin Oberdorff, Thierry Catchments Amazon Basin Amazon River Climatic Conditions Drainage Networks Eastern Basins Miocene Species Richness Subbasins Fish Climate Habitat Human Miocene Prediction River Species Diversity Species Richness |
title_short |
Unexpected fish diversity gradients in the Amazon basin |
title_full |
Unexpected fish diversity gradients in the Amazon basin |
title_fullStr |
Unexpected fish diversity gradients in the Amazon basin |
title_full_unstemmed |
Unexpected fish diversity gradients in the Amazon basin |
title_sort |
Unexpected fish diversity gradients in the Amazon basin |
author |
Oberdorff, Thierry |
author_facet |
Oberdorff, Thierry Dias, Murilo Sversut J?z?quel, C?line Albert, James Spurling Arantes, Caroline Chaves Bigorne, Rémy Carvajal-Valleros, Fernando M. Wever, Aaike de Frederico, Renata Guimarães Hidalgo, Max H. Hugueny, Bernard Leprieur, Fabien Mabel, Maldonado, Maldonado-Ocampo, Javier Alejandro Martens, Koen M. Ortega, Hernán Jaime, Sarmiento, Tedesco, Pablo A. Torrente-Vilara, Gislene Winemiller, Kirk O. Zuanon, Jansen |
author_role |
author |
author2 |
Dias, Murilo Sversut J?z?quel, C?line Albert, James Spurling Arantes, Caroline Chaves Bigorne, Rémy Carvajal-Valleros, Fernando M. Wever, Aaike de Frederico, Renata Guimarães Hidalgo, Max H. Hugueny, Bernard Leprieur, Fabien Mabel, Maldonado, Maldonado-Ocampo, Javier Alejandro Martens, Koen M. Ortega, Hernán Jaime, Sarmiento, Tedesco, Pablo A. Torrente-Vilara, Gislene Winemiller, Kirk O. Zuanon, Jansen |
author2_role |
author author author author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Oberdorff, Thierry Dias, Murilo Sversut J?z?quel, C?line Albert, James Spurling Arantes, Caroline Chaves Bigorne, Rémy Carvajal-Valleros, Fernando M. Wever, Aaike de Frederico, Renata Guimarães Hidalgo, Max H. Hugueny, Bernard Leprieur, Fabien Mabel, Maldonado, Maldonado-Ocampo, Javier Alejandro Martens, Koen M. Ortega, Hernán Jaime, Sarmiento, Tedesco, Pablo A. Torrente-Vilara, Gislene Winemiller, Kirk O. Zuanon, Jansen |
dc.subject.eng.fl_str_mv |
Catchments Amazon Basin Amazon River Climatic Conditions Drainage Networks Eastern Basins Miocene Species Richness Subbasins Fish Climate Habitat Human Miocene Prediction River Species Diversity Species Richness |
topic |
Catchments Amazon Basin Amazon River Climatic Conditions Drainage Networks Eastern Basins Miocene Species Richness Subbasins Fish Climate Habitat Human Miocene Prediction River Species Diversity Species Richness |
description |
Using the most comprehensive fish occurrence database, we evaluated the importance of ecological and historical drivers in diversity patterns of subdrainage basins across the Amazon system. Linear models reveal the influence of climatic conditions, habitat size and sub-basin isolation on species diversity. Unexpectedly, the species richness model also highlighted a negative upriver-downriver gradient, contrary to predictions of increasing richness at more downriver locations along fluvial gradients. This reverse gradient may be linked to the history of the Amazon drainage network, which, after isolation as western and eastern basins throughout the Miocene, only began flowing eastward 1–9 million years (Ma) ago. Our results suggest that the main center of fish diversity was located westward, with fish dispersal progressing eastward after the basins were united and the Amazon River assumed its modern course toward the Atlantic. This dispersal process seems not yet achieved, suggesting a recent formation of the current Amazon system. Copyright © 2019 The Authors, |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2020-05-14T16:04:20Z |
dc.date.available.fl_str_mv |
2020-05-14T16:04:20Z |
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 |
https://repositorio.inpa.gov.br/handle/1/15500 |
dc.identifier.doi.none.fl_str_mv |
10.1126/sciadv.aav8681 |
url |
https://repositorio.inpa.gov.br/handle/1/15500 |
identifier_str_mv |
10.1126/sciadv.aav8681 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 5, Número 9 |
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 |
dc.publisher.none.fl_str_mv |
Science Advances |
publisher.none.fl_str_mv |
Science Advances |
dc.source.none.fl_str_mv |
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