Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas?
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00267-017-0938-9 http://hdl.handle.net/11449/163429 |
Resumo: | We investigated the influence and relative importance of insecticides and other agricultural stressors in determining variability in invertebrate communities in small streams in intensive soy-production regions of Brazil and Paraguay. In Paraguay we sampled 17 sites on tributaries of the Pirapo River in the state of Itapua and in Brazil we sampled 18 sites on tributaries of the San Francisco River in the state of Parana. The riparian buffer zones generally contained native Atlantic forest remnants and/or introduced tree species at various stages of growth. In Brazil the stream buffer width was negatively correlated with sediment insecticide concentrations and buffer width was found to have moderate importance in mitigating effects on some sensitive taxa such as mayflies. However, in both regions insecticides had low relative importance in explaining variability in invertebrate communities, while various habitat parameters were more important. In Brazil, the percent coverage of soft depositional sediment in streams was the most important agriculture-related explanatory variable, and the overall stream-habitat score was the most important variable in Paraguay streams. Paraguay and Brazil both have laws requiring forested riparian buffers. The ample forested riparian buffer zones typical of streams in these regions are likely to have mitigated the effects of pesticides on stream invertebrate communities. This study provides evidence that riparian buffer regulations in the Atlantic Forest region are protecting stream ecosystems from pesticides and other agricultural stressors. Further studies are needed to determine the minimum buffer widths necessary to achieve optimal protection. |
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Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas?Soy productionPesticidesAgricultureMultiple stressorsStream macroinvertebratesWe investigated the influence and relative importance of insecticides and other agricultural stressors in determining variability in invertebrate communities in small streams in intensive soy-production regions of Brazil and Paraguay. In Paraguay we sampled 17 sites on tributaries of the Pirapo River in the state of Itapua and in Brazil we sampled 18 sites on tributaries of the San Francisco River in the state of Parana. The riparian buffer zones generally contained native Atlantic forest remnants and/or introduced tree species at various stages of growth. In Brazil the stream buffer width was negatively correlated with sediment insecticide concentrations and buffer width was found to have moderate importance in mitigating effects on some sensitive taxa such as mayflies. However, in both regions insecticides had low relative importance in explaining variability in invertebrate communities, while various habitat parameters were more important. In Brazil, the percent coverage of soft depositional sediment in streams was the most important agriculture-related explanatory variable, and the overall stream-habitat score was the most important variable in Paraguay streams. Paraguay and Brazil both have laws requiring forested riparian buffers. The ample forested riparian buffer zones typical of streams in these regions are likely to have mitigated the effects of pesticides on stream invertebrate communities. This study provides evidence that riparian buffer regulations in the Atlantic Forest region are protecting stream ecosystems from pesticides and other agricultural stressors. Further studies are needed to determine the minimum buffer widths necessary to achieve optimal protection.Agencia Nacional de Promocion Cientifica y TecnologicaConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)National Science FoundationFulbright U.S Student ProgramPro CosaraMuseo Nacional de Historia Natural ParaguayGuyra ParaguayWorld Wildlife Fund ParaguayPontificia Universidade Catolica do ParanaInstituto Ambiental do ParanaUniv Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USAUNLP, ILPLA CONICET CCT La Plata, Inst Limnol Dr Raul A Ringuelet, Blvd 120 & 62, RA-1900 Buenos Aires, DF, ArgentinaUFZ Helmholtz Ctr Environm Res, Dept Syst Ecotoxicol, Leipzig, GermanyFiocruz MS, IOC, Lab Avaliacao & Promocao Saude Ambiental, Av Brasil 4365 Manguinhos, BR-21045900 Rio De Janeiro, RJ, BrazilUniv Estadual Paulista, Dept Zool, Inst Biociencias, Dist Rubiao Jr S-N, BR-18618689 Botucatu, SP, BrazilUniv Estadual Paulista, Dept Zool, Inst Biociencias, Dist Rubiao Jr S-N, BR-18618689 Botucatu, SP, BrazilAgencia Nacional de Promocion Cientifica y Tecnologica: Argentina-PICT 2010-0446CNPq: 400107/2011-2SpringerUniv Calif BerkeleyUNLPUFZ Helmholtz Ctr Environm ResFiocruz MSUniversidade Estadual Paulista (Unesp)Hunt, L.Marrochi, N.Bonetto, C.Liess, M.Buss, D. F.Vieira da Silva, C. [UNESP]Chiu, M. -C.Resh, V. H.2018-11-26T17:41:59Z2018-11-26T17:41:59Z2017-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1155-1170application/pdfhttp://dx.doi.org/10.1007/s00267-017-0938-9Environmental Management. New York: Springer, v. 60, n. 6, p. 1155-1170, 2017.0364-152Xhttp://hdl.handle.net/11449/16342910.1007/s00267-017-0938-9WOS:000413777700011WOS000413777700011.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Managementinfo:eu-repo/semantics/openAccess2023-12-29T06:18:25Zoai:repositorio.unesp.br:11449/163429Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-29T06:18:25Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
title |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
spellingShingle |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? Hunt, L. Soy production Pesticides Agriculture Multiple stressors Stream macroinvertebrates |
title_short |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
title_full |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
title_fullStr |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
title_full_unstemmed |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
title_sort |
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas? |
author |
Hunt, L. |
author_facet |
Hunt, L. Marrochi, N. Bonetto, C. Liess, M. Buss, D. F. Vieira da Silva, C. [UNESP] Chiu, M. -C. Resh, V. H. |
author_role |
author |
author2 |
Marrochi, N. Bonetto, C. Liess, M. Buss, D. F. Vieira da Silva, C. [UNESP] Chiu, M. -C. Resh, V. H. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Calif Berkeley UNLP UFZ Helmholtz Ctr Environm Res Fiocruz MS Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Hunt, L. Marrochi, N. Bonetto, C. Liess, M. Buss, D. F. Vieira da Silva, C. [UNESP] Chiu, M. -C. Resh, V. H. |
dc.subject.por.fl_str_mv |
Soy production Pesticides Agriculture Multiple stressors Stream macroinvertebrates |
topic |
Soy production Pesticides Agriculture Multiple stressors Stream macroinvertebrates |
description |
We investigated the influence and relative importance of insecticides and other agricultural stressors in determining variability in invertebrate communities in small streams in intensive soy-production regions of Brazil and Paraguay. In Paraguay we sampled 17 sites on tributaries of the Pirapo River in the state of Itapua and in Brazil we sampled 18 sites on tributaries of the San Francisco River in the state of Parana. The riparian buffer zones generally contained native Atlantic forest remnants and/or introduced tree species at various stages of growth. In Brazil the stream buffer width was negatively correlated with sediment insecticide concentrations and buffer width was found to have moderate importance in mitigating effects on some sensitive taxa such as mayflies. However, in both regions insecticides had low relative importance in explaining variability in invertebrate communities, while various habitat parameters were more important. In Brazil, the percent coverage of soft depositional sediment in streams was the most important agriculture-related explanatory variable, and the overall stream-habitat score was the most important variable in Paraguay streams. Paraguay and Brazil both have laws requiring forested riparian buffers. The ample forested riparian buffer zones typical of streams in these regions are likely to have mitigated the effects of pesticides on stream invertebrate communities. This study provides evidence that riparian buffer regulations in the Atlantic Forest region are protecting stream ecosystems from pesticides and other agricultural stressors. Further studies are needed to determine the minimum buffer widths necessary to achieve optimal protection. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 2018-11-26T17:41:59Z 2018-11-26T17:41:59Z |
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://dx.doi.org/10.1007/s00267-017-0938-9 Environmental Management. New York: Springer, v. 60, n. 6, p. 1155-1170, 2017. 0364-152X http://hdl.handle.net/11449/163429 10.1007/s00267-017-0938-9 WOS:000413777700011 WOS000413777700011.pdf |
url |
http://dx.doi.org/10.1007/s00267-017-0938-9 http://hdl.handle.net/11449/163429 |
identifier_str_mv |
Environmental Management. New York: Springer, v. 60, n. 6, p. 1155-1170, 2017. 0364-152X 10.1007/s00267-017-0938-9 WOS:000413777700011 WOS000413777700011.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Management |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1155-1170 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799965445627838464 |