Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas?

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 Pirapó Rive...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Hunt, L., Marrochi, María Natalia, Bonetto, Carlos Alberto, Liess, M., Buss, D. F., Vieira da Silva, C., Chiu, M.-C., Resh, V. H.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
Soy production
Pesticides
Agriculture
Multiple stressors
Stream macroinvertebrates
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/103038
https://link.springer.com/article/10.1007%2Fs00267-017-0938-9
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-103038
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Soy production
Pesticides
Agriculture
Multiple stressors
Stream macroinvertebrates
spellingShingle Ciencias Naturales
Soy production
Pesticides
Agriculture
Multiple stressors
Stream macroinvertebrates
Hunt, L.
Marrochi, María Natalia
Bonetto, Carlos Alberto
Liess, M.
Buss, D. F.
Vieira da Silva, C.
Chiu, M.-C.
Resh, V. H.
Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas?
topic_facet Ciencias Naturales
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 Pirapó River in the state of Itapúa and in Brazil we sampled 18 sites on tributaries of the San Francisco River in the state of Paraná. 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.
format Articulo
Articulo
author Hunt, L.
Marrochi, María Natalia
Bonetto, Carlos Alberto
Liess, M.
Buss, D. F.
Vieira da Silva, C.
Chiu, M.-C.
Resh, V. H.
author_facet Hunt, L.
Marrochi, María Natalia
Bonetto, Carlos Alberto
Liess, M.
Buss, D. F.
Vieira da Silva, C.
Chiu, M.-C.
Resh, V. H.
author_sort Hunt, L.
title Do Riparian Buffers Protect Stream Invertebrate Communities in South American Atlantic Forest Agricultural Areas?
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?
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/103038
https://link.springer.com/article/10.1007%2Fs00267-017-0938-9
work_keys_str_mv AT huntl doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT marrochimarianatalia doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT bonettocarlosalberto doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT liessm doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT bussdf doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT vieiradasilvac doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT chiumc doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
AT reshvh doriparianbuffersprotectstreaminvertebratecommunitiesinsouthamericanatlanticforestagriculturalareas
bdutipo_str Repositorios
_version_ 1764820441395888128

Ejemplares similares