How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages
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/10.1556/168.2017.18.1.6 http://hdl.handle.net/11449/178964 |
Resumo: | We studied a benthic invertebrate assemblage of a stream that passes through pristine, rural, suburban and urban areas of a municipality located in southeastern Brazil to investigate a possible relationship between this assemblage structure and urbanization. The environmental variables and fauna structure were analyzed in a spatial and temporal scale, sampling the four sites in a dry and wet season. We found a clear spatial pattern, with higher similarity between sites from rural and suburban area that presented intermediate environmental characteristics. The pristine site showed in both seasons the lowest values of alkalinity and fecal coliform. On the other hand, the site located in the urban area showed the lowest concentration of dissolved oxygen and higher of suspended solids, ammonia and fecal coliform. The extreme values of these three variables occurred in the wet season, probably related to the high rainfall values. The benthic invertebrate fauna structure followed the same longitudinal and seasonal pattern found for the environmental variables. The site in urban area showed the lowest richness, diversity and evenness, with a dominance of two groups resistant to adverse environmental conditions (Oligochaeta and Orthocladiinae) and absence of more sensitive groups (Coleoptera, Ephemeroptera and Trichoptera). The increase drag of the substrate and associated invertebrates can be responsible for the lower abundance and richness observed in the wet season. The environmental variables that best defined the differentiation between sites (dissolved oxygen, organic suspended solids and fecal coliform) related directly to urbanization effects, like dump effluents and removal of riparian vegetation. |
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How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblagesAquatic insectsBrazilian streamEnvironmental degradationUrbanizationWe studied a benthic invertebrate assemblage of a stream that passes through pristine, rural, suburban and urban areas of a municipality located in southeastern Brazil to investigate a possible relationship between this assemblage structure and urbanization. The environmental variables and fauna structure were analyzed in a spatial and temporal scale, sampling the four sites in a dry and wet season. We found a clear spatial pattern, with higher similarity between sites from rural and suburban area that presented intermediate environmental characteristics. The pristine site showed in both seasons the lowest values of alkalinity and fecal coliform. On the other hand, the site located in the urban area showed the lowest concentration of dissolved oxygen and higher of suspended solids, ammonia and fecal coliform. The extreme values of these three variables occurred in the wet season, probably related to the high rainfall values. The benthic invertebrate fauna structure followed the same longitudinal and seasonal pattern found for the environmental variables. The site in urban area showed the lowest richness, diversity and evenness, with a dominance of two groups resistant to adverse environmental conditions (Oligochaeta and Orthocladiinae) and absence of more sensitive groups (Coleoptera, Ephemeroptera and Trichoptera). The increase drag of the substrate and associated invertebrates can be responsible for the lower abundance and richness observed in the wet season. The environmental variables that best defined the differentiation between sites (dissolved oxygen, organic suspended solids and fecal coliform) related directly to urbanization effects, like dump effluents and removal of riparian vegetation.Department of Zoology Unesp - Univ Estadual Paulista, C.P. 510Department of Zoology Unesp - Univ Estadual Paulista, C.P. 510Universidade Estadual Paulista (Unesp)Uieda, V. S. [UNESP]Iwai, M. L.B. [UNESP]Ono, E. R. [UNESP]Melo, A. L.U. [UNESP]Alves, M. I.B. [UNESP]2018-12-11T17:32:55Z2018-12-11T17:32:55Z2017-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article47-55application/pdfhttp://dx.doi.org/10.1556/168.2017.18.1.6Community Ecology, v. 18, n. 1, p. 47-55, 2017.1588-27561585-8553http://hdl.handle.net/11449/17896410.1556/168.2017.18.1.62-s2.0-850211645342-s2.0-85021164534.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCommunity Ecology0,549info:eu-repo/semantics/openAccess2023-12-26T06:13:31Zoai:repositorio.unesp.br:11449/178964Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:17:38.972835Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
title |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
spellingShingle |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages Uieda, V. S. [UNESP] Aquatic insects Brazilian stream Environmental degradation Urbanization |
title_short |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
title_full |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
title_fullStr |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
title_full_unstemmed |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
title_sort |
How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages |
author |
Uieda, V. S. [UNESP] |
author_facet |
Uieda, V. S. [UNESP] Iwai, M. L.B. [UNESP] Ono, E. R. [UNESP] Melo, A. L.U. [UNESP] Alves, M. I.B. [UNESP] |
author_role |
author |
author2 |
Iwai, M. L.B. [UNESP] Ono, E. R. [UNESP] Melo, A. L.U. [UNESP] Alves, M. I.B. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Uieda, V. S. [UNESP] Iwai, M. L.B. [UNESP] Ono, E. R. [UNESP] Melo, A. L.U. [UNESP] Alves, M. I.B. [UNESP] |
dc.subject.por.fl_str_mv |
Aquatic insects Brazilian stream Environmental degradation Urbanization |
topic |
Aquatic insects Brazilian stream Environmental degradation Urbanization |
description |
We studied a benthic invertebrate assemblage of a stream that passes through pristine, rural, suburban and urban areas of a municipality located in southeastern Brazil to investigate a possible relationship between this assemblage structure and urbanization. The environmental variables and fauna structure were analyzed in a spatial and temporal scale, sampling the four sites in a dry and wet season. We found a clear spatial pattern, with higher similarity between sites from rural and suburban area that presented intermediate environmental characteristics. The pristine site showed in both seasons the lowest values of alkalinity and fecal coliform. On the other hand, the site located in the urban area showed the lowest concentration of dissolved oxygen and higher of suspended solids, ammonia and fecal coliform. The extreme values of these three variables occurred in the wet season, probably related to the high rainfall values. The benthic invertebrate fauna structure followed the same longitudinal and seasonal pattern found for the environmental variables. The site in urban area showed the lowest richness, diversity and evenness, with a dominance of two groups resistant to adverse environmental conditions (Oligochaeta and Orthocladiinae) and absence of more sensitive groups (Coleoptera, Ephemeroptera and Trichoptera). The increase drag of the substrate and associated invertebrates can be responsible for the lower abundance and richness observed in the wet season. The environmental variables that best defined the differentiation between sites (dissolved oxygen, organic suspended solids and fecal coliform) related directly to urbanization effects, like dump effluents and removal of riparian vegetation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-04-01 2018-12-11T17:32:55Z 2018-12-11T17:32:55Z |
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/10.1556/168.2017.18.1.6 Community Ecology, v. 18, n. 1, p. 47-55, 2017. 1588-2756 1585-8553 http://hdl.handle.net/11449/178964 10.1556/168.2017.18.1.6 2-s2.0-85021164534 2-s2.0-85021164534.pdf |
url |
http://dx.doi.org/10.1556/168.2017.18.1.6 http://hdl.handle.net/11449/178964 |
identifier_str_mv |
Community Ecology, v. 18, n. 1, p. 47-55, 2017. 1588-2756 1585-8553 10.1556/168.2017.18.1.6 2-s2.0-85021164534 2-s2.0-85021164534.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Community Ecology 0,549 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
47-55 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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 |
|
_version_ |
1808129306884308992 |