Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil

Detalhes bibliográficos
Autor(a) principal: Viana, Carolina Gomes
Data de Publicação: 2020
Outros Autores: Campos, Ingrid Reis, Lustosa, Guilherme Santana, Veras, Daniel Silas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Brasiliensis (Online)
Texto Completo: http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/362
Resumo: The patterns of aquatic insect diversity are influenced by landscape structure and environmental gradients that can be altered significantly through changes in land use. The aim of the present study was to verify if the patterns of diversity of the orders Odonata and Trichoptera vary significantly between preserved and altered sites, along a gradient of environmental impact. Data were collected on the structural and environmental characteristics of the stream, and the assemblages of aquatic insects at seven sampling points in a Cerrado-Caatinga ecotone of northeastern Brazil, in the dry seasons of 2018 and 2019. The results indicated that altered streams had higher electrical conductivity and lowest HII (habitat integrity index) values in comparison with the preserved ones, being determinant in the distribution of genera, and low pH values increased genera richness, informations that can guide management strategies for biodiversity conservation. Which supports the conclusion that the diversity of aquatic insects is determined by the influence of environmental filters in the streams.
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spelling Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil Gradientes ambientais como filtros na composição de insetos aquáticos do Cerrado-Caatinga, BrasilThe patterns of aquatic insect diversity are influenced by landscape structure and environmental gradients that can be altered significantly through changes in land use. The aim of the present study was to verify if the patterns of diversity of the orders Odonata and Trichoptera vary significantly between preserved and altered sites, along a gradient of environmental impact. Data were collected on the structural and environmental characteristics of the stream, and the assemblages of aquatic insects at seven sampling points in a Cerrado-Caatinga ecotone of northeastern Brazil, in the dry seasons of 2018 and 2019. The results indicated that altered streams had higher electrical conductivity and lowest HII (habitat integrity index) values in comparison with the preserved ones, being determinant in the distribution of genera, and low pH values increased genera richness, informations that can guide management strategies for biodiversity conservation. Which supports the conclusion that the diversity of aquatic insects is determined by the influence of environmental filters in the streams.Os padrões de diversidade de insetos aquáticos são influenciados pela estrutura da paisagem e gradientes ambientais que podem ser alterados significativamente através de mudanças no uso da terra. O objetivo do presente estudo foi verificar se os padrões de diversidade das ordens Odonata e Trichoptera variam significativamente entre locais preservados e alterados, ao longo de um gradiente de impacto ambiental. Foram coletados dados sobre as características estruturais e ambientais do córrego e das assembleias de insetos aquáticos em sete pontos de amostragem em um ecótono Cerrado-Caatinga do Nordeste, Brasil, nas estações secas de 2018 e 2019. Os resultados indicaram que córregos alterados apresentaram maiores valores de condutividade elétrica e menores valores de IIH (índice de integridade de habitat) em comparação aos preservados, sendo determinantes na distribuição de gêneros, e baixos valores de pH aumentaram a riqueza de gêneros, informações que podem orientar estratégias de manejo para a conservação da biodiversidade. Reforçando a conclusão de que a diversidade de insetos aquáticos é determinada pela influência de filtros ambientais nos riachos.Universidade Federal de Campina Grande - UFCG2020-09-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/36210.22571/2526-4338362Acta Brasiliensis; Vol 4 No 3 (2020): Acta Brasiliensis; 142-148Acta Brasiliensis; Vol 4 No 3 (2020): Acta Brasiliensis; 142-148Acta Brasiliensis; Vol 4 No 3 (2020): Acta Brasiliensis; 142-1482526-43382526-432Xreponame:Acta Brasiliensis (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCGenghttp://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/362/104Viana, Carolina GomesCampos, Ingrid ReisLustosa, Guilherme SantanaVeras, Daniel Silasinfo:eu-repo/semantics/openAccess2021-07-12T20:03:34Zoai:ActaBra.revistas.ufcg.edu.br:article/362Revistahttp://revistas.ufcg.edu.br/ActaBraPUBhttp://revistas.ufcg.edu.br/ActaBra/index.php/actabra/oaiactabrasiliensis@gmail.com || actabrasiliensis@gmail.com2526-432X2526-4338opendoar:2021-07-12T20:03:34Acta Brasiliensis (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil

Gradientes ambientais como filtros na composição de insetos aquáticos do Cerrado-Caatinga, Brasil
title Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
spellingShingle Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
Viana, Carolina Gomes
title_short Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
title_full Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
title_fullStr Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
title_full_unstemmed Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
title_sort Environmental gradients as filters on the composition of aquatic insect of the Cerrado-Caatinga, Brazil
author Viana, Carolina Gomes
author_facet Viana, Carolina Gomes
Campos, Ingrid Reis
Lustosa, Guilherme Santana
Veras, Daniel Silas
author_role author
author2 Campos, Ingrid Reis
Lustosa, Guilherme Santana
Veras, Daniel Silas
author2_role author
author
author
dc.contributor.author.fl_str_mv Viana, Carolina Gomes
Campos, Ingrid Reis
Lustosa, Guilherme Santana
Veras, Daniel Silas
description The patterns of aquatic insect diversity are influenced by landscape structure and environmental gradients that can be altered significantly through changes in land use. The aim of the present study was to verify if the patterns of diversity of the orders Odonata and Trichoptera vary significantly between preserved and altered sites, along a gradient of environmental impact. Data were collected on the structural and environmental characteristics of the stream, and the assemblages of aquatic insects at seven sampling points in a Cerrado-Caatinga ecotone of northeastern Brazil, in the dry seasons of 2018 and 2019. The results indicated that altered streams had higher electrical conductivity and lowest HII (habitat integrity index) values in comparison with the preserved ones, being determinant in the distribution of genera, and low pH values increased genera richness, informations that can guide management strategies for biodiversity conservation. Which supports the conclusion that the diversity of aquatic insects is determined by the influence of environmental filters in the streams.
publishDate 2020
dc.date.none.fl_str_mv 2020-09-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/362
10.22571/2526-4338362
url http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/362
identifier_str_mv 10.22571/2526-4338362
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/362/104
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 Campina Grande - UFCG
publisher.none.fl_str_mv Universidade Federal de Campina Grande - UFCG
dc.source.none.fl_str_mv Acta Brasiliensis; Vol 4 No 3 (2020): Acta Brasiliensis; 142-148
Acta Brasiliensis; Vol 4 No 3 (2020): Acta Brasiliensis; 142-148
Acta Brasiliensis; Vol 4 No 3 (2020): Acta Brasiliensis; 142-148
2526-4338
2526-432X
reponame:Acta Brasiliensis (Online)
instname:Universidade Federal de Campina Grande (UFCG)
instacron:UFCG
instname_str Universidade Federal de Campina Grande (UFCG)
instacron_str UFCG
institution UFCG
reponame_str Acta Brasiliensis (Online)
collection Acta Brasiliensis (Online)
repository.name.fl_str_mv Acta Brasiliensis (Online) - Universidade Federal de Campina Grande (UFCG)
repository.mail.fl_str_mv actabrasiliensis@gmail.com || actabrasiliensis@gmail.com
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