Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | https://doi.org/10.1590/1982-0224-2021-0035 http://hdl.handle.net/1843/56286 https://orcid.org/0000-0002-5014-784X https://orcid.org/0000-0002-7938-1517 https://orcid.org/0000-0002-0108-8572 https://orcid.org/0000-0003-1308-666X https://orcid.org/0000-0003-3321-7065 https://orcid.org/0000-0001-7990-0068 |
Resumo: | We investigated the mechanisms involved in the relationship between landuse changes and aquatic biodiversity, using stream fish assemblages of the Brazilian Savanna (i.e., Cerrado) as a study model. We tested the prediction that landscape degradation would decrease environmental heterogeneity and change predominant physical-habitat types, which in turn would decrease the functional diversity and alter the functional identity of fish assemblages. We sampled fish from 40 streams in the Upper Paraná River basin, and assessed catchment and instream conditions. We then conducted an ecomorphological analysis to functionally characterize all species (36) and quantify different facets of the functional structure of assemblages. We detected multiple pathways of the impacts from landscape changes on the fish assemblages. Catchment degradation reduced the stream-bed complexity and the heterogeneity of canopy shading, decreasing assemblage functional specialization and divergence. Landscape changes also reduced the water volume and the amount of large rocks in streams, resulting in decreased abundances of species with large bodies and with morphological traits that favor swimming in the water column. We conclude that land-use intensification caused significant changes in aquatic biodiversity in the Cerrado, reinforcing the need to pay special attention to this global hotspot. |
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2023-07-14T20:25:21Z2023-07-14T20:25:21Z2021193https://doi.org/10.1590/1982-0224-2021-00351982-0224http://hdl.handle.net/1843/56286https://orcid.org/0000-0002-5014-784Xhttps://orcid.org/0000-0002-7938-1517https://orcid.org/0000-0002-0108-8572https://orcid.org/0000-0003-1308-666Xhttps://orcid.org/0000-0003-3321-7065https://orcid.org/0000-0001-7990-0068We investigated the mechanisms involved in the relationship between landuse changes and aquatic biodiversity, using stream fish assemblages of the Brazilian Savanna (i.e., Cerrado) as a study model. We tested the prediction that landscape degradation would decrease environmental heterogeneity and change predominant physical-habitat types, which in turn would decrease the functional diversity and alter the functional identity of fish assemblages. We sampled fish from 40 streams in the Upper Paraná River basin, and assessed catchment and instream conditions. We then conducted an ecomorphological analysis to functionally characterize all species (36) and quantify different facets of the functional structure of assemblages. We detected multiple pathways of the impacts from landscape changes on the fish assemblages. Catchment degradation reduced the stream-bed complexity and the heterogeneity of canopy shading, decreasing assemblage functional specialization and divergence. Landscape changes also reduced the water volume and the amount of large rocks in streams, resulting in decreased abundances of species with large bodies and with morphological traits that favor swimming in the water column. We conclude that land-use intensification caused significant changes in aquatic biodiversity in the Cerrado, reinforcing the need to pay special attention to this global hotspot.Investigamos os mecanismos envolvidos na relação entre mudanças de uso da terra e biodiversidade aquática, utilizando a ictiofauna de riachos do Cerrado como modelo de estudo. Testamos a predição de que a degradação da paisagem reduz a heterogeneidade ambiental e muda os tipos predominantes de habitat, por sua vez, diminuindo a diversidade e alterando a identidade funcional de comunidades de peixes. Amostramos 40 riachos da bacia do Alto Rio Paraná, e avaliamos as condições da drenagem e do habitat físico local. Em seguida, conduzimos uma análise ecomorfológica para caracterizar funcionalmente todas as espécies (36) e quantificar diferentes facetas da estrutura funcional das comunidades. Detectamos múltiplos caminhos de impacto das alterações da paisagem sobre a ictiofauna. A degradação das bacias de drenagem reduziu complexidade do leito e heterogeneidade no sombreamento pelo dossel, diminuindo especialização e divergência funcional das comunidades. Alterações na paisagem também reduziram volume de água e quantidade de pedras grandes nos riachos, resultando em diminuição na abundância de espécies de maior porte e com atributos morfológicos que favorecem a natação na coluna d’água. Concluímos que a intensificação dos usos da terra causa alterações significativas para a biodiversidade aquática no Cerrado, reforçando a necessidade de especial atenção a este hotspot global.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFAPESP - Fundação de Amparo à Pesquisa do Estado de São PauloOutra AgênciaengUniversidade Federal de Minas GeraisUFMGBrasilICB - DEPARTAMENTO DE BIOLOGIA GERALNeotropical IchthyologyBiodiversidadePeixe de água doceCerradosEcologia do cerradoDegradação ambientalHomem - Influencia sobre a naturezaBiodiversity hotspotFunctional traitsHuman impactsLandscape degradationStream physical habitatLand-use changes affect the functional structure of stream fish assemblages in the brazilian savannaAs mudanças no uso da terra afetam o funcionamento estrutura de assembléias de peixes de riachos em a savana brasileirainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://www.scielo.br/j/ni/a/yqrsrR9WN7wCLdB7hL9zT5r/?lang=en#Ludmilla Rodrigues Pimenta AlvarengaPaulo Santos PompeuCecília Gontijo LealRobert M. HughesDaniela Cristina FagundesRafael Pereira Leitãoapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/56286/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALLand-use changes affect the functional structure of stream fish assemblages in the brazilian savanna.pdfLand-use changes affect the functional structure of stream fish assemblages in the brazilian savanna.pdfapplication/pdf1732093https://repositorio.ufmg.br/bitstream/1843/56286/2/Land-use%20changes%20affect%20the%20functional%20structure%20of%20stream%20fish%20assemblages%20in%20the%20brazilian%20savanna.pdf3149001dd0a7fe709dcbc7f6b1be2cc5MD521843/562862023-07-14 17:25:21.983oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-07-14T20:25:21Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
dc.title.alternative.pt_BR.fl_str_mv |
As mudanças no uso da terra afetam o funcionamento estrutura de assembléias de peixes de riachos em a savana brasileira |
title |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
spellingShingle |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna Ludmilla Rodrigues Pimenta Alvarenga Biodiversity hotspot Functional traits Human impacts Landscape degradation Stream physical habitat Biodiversidade Peixe de água doce Cerrados Ecologia do cerrado Degradação ambiental Homem - Influencia sobre a natureza |
title_short |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
title_full |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
title_fullStr |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
title_full_unstemmed |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
title_sort |
Land-use changes affect the functional structure of stream fish assemblages in the brazilian savanna |
author |
Ludmilla Rodrigues Pimenta Alvarenga |
author_facet |
Ludmilla Rodrigues Pimenta Alvarenga Paulo Santos Pompeu Cecília Gontijo Leal Robert M. Hughes Daniela Cristina Fagundes Rafael Pereira Leitão |
author_role |
author |
author2 |
Paulo Santos Pompeu Cecília Gontijo Leal Robert M. Hughes Daniela Cristina Fagundes Rafael Pereira Leitão |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Ludmilla Rodrigues Pimenta Alvarenga Paulo Santos Pompeu Cecília Gontijo Leal Robert M. Hughes Daniela Cristina Fagundes Rafael Pereira Leitão |
dc.subject.por.fl_str_mv |
Biodiversity hotspot Functional traits Human impacts Landscape degradation Stream physical habitat |
topic |
Biodiversity hotspot Functional traits Human impacts Landscape degradation Stream physical habitat Biodiversidade Peixe de água doce Cerrados Ecologia do cerrado Degradação ambiental Homem - Influencia sobre a natureza |
dc.subject.other.pt_BR.fl_str_mv |
Biodiversidade Peixe de água doce Cerrados Ecologia do cerrado Degradação ambiental Homem - Influencia sobre a natureza |
description |
We investigated the mechanisms involved in the relationship between landuse changes and aquatic biodiversity, using stream fish assemblages of the Brazilian Savanna (i.e., Cerrado) as a study model. We tested the prediction that landscape degradation would decrease environmental heterogeneity and change predominant physical-habitat types, which in turn would decrease the functional diversity and alter the functional identity of fish assemblages. We sampled fish from 40 streams in the Upper Paraná River basin, and assessed catchment and instream conditions. We then conducted an ecomorphological analysis to functionally characterize all species (36) and quantify different facets of the functional structure of assemblages. We detected multiple pathways of the impacts from landscape changes on the fish assemblages. Catchment degradation reduced the stream-bed complexity and the heterogeneity of canopy shading, decreasing assemblage functional specialization and divergence. Landscape changes also reduced the water volume and the amount of large rocks in streams, resulting in decreased abundances of species with large bodies and with morphological traits that favor swimming in the water column. We conclude that land-use intensification caused significant changes in aquatic biodiversity in the Cerrado, reinforcing the need to pay special attention to this global hotspot. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021 |
dc.date.accessioned.fl_str_mv |
2023-07-14T20:25:21Z |
dc.date.available.fl_str_mv |
2023-07-14T20:25:21Z |
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/1843/56286 |
dc.identifier.doi.pt_BR.fl_str_mv |
https://doi.org/10.1590/1982-0224-2021-0035 |
dc.identifier.issn.pt_BR.fl_str_mv |
1982-0224 |
dc.identifier.orcid.pt_BR.fl_str_mv |
https://orcid.org/0000-0002-5014-784X https://orcid.org/0000-0002-7938-1517 https://orcid.org/0000-0002-0108-8572 https://orcid.org/0000-0003-1308-666X https://orcid.org/0000-0003-3321-7065 https://orcid.org/0000-0001-7990-0068 |
url |
https://doi.org/10.1590/1982-0224-2021-0035 http://hdl.handle.net/1843/56286 https://orcid.org/0000-0002-5014-784X https://orcid.org/0000-0002-7938-1517 https://orcid.org/0000-0002-0108-8572 https://orcid.org/0000-0003-1308-666X https://orcid.org/0000-0003-3321-7065 https://orcid.org/0000-0001-7990-0068 |
identifier_str_mv |
1982-0224 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Neotropical Ichthyology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.publisher.initials.fl_str_mv |
UFMG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
ICB - DEPARTAMENTO DE BIOLOGIA GERAL |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
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reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
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