Landscape integrity and influence on Chironomidae composition assemblages in small order streams
Ecología Austral, 24:335-342 (2014)Studies in stream ecology are aimed at understanding the patterns of distribution of aquatic communities, trying to answer how local and regional factors influence the occurrence and persistence of species in these ecosystems. This study investigated the influence of land use on the Chironomidae community in streams in two drainage areas in southern Brazil. Chironomid larvae were collected in1st and 2nd orders. The riparian zone of streams (30 m on both sides) had its landscape analyzed using GIS techniques, and land uses classified as consistent and non-consistent. The land use influence was different between the two drainage areas. Likewise, the composition of Chironomidae community in streams was different between the two drainage areas. Among the different land uses, the community was influenced mainly by agriculture and arboreous vegetation. We conclud that the aquatic communities respond to environmental changes not only at local scale but also at broader scales, such as landscape features of the surrounding areas.
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2014
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rev-ecoaus-article-112023-11-02T20:45:11Z Landscape integrity and influence on Chironomidae composition assemblages in small order streams Integridade da paisagem e sua influência sobre a composição da comunidade de Chironomidae (Diptera) em riachos de pequena ordem De Toni, Kamila R. Nava, Diane Restello, Rozane M. Decian, Vanderlei Rovani, Ivan L. Hepp, Luiz U. Ecología Austral, 24:335-342 (2014)Studies in stream ecology are aimed at understanding the patterns of distribution of aquatic communities, trying to answer how local and regional factors influence the occurrence and persistence of species in these ecosystems. This study investigated the influence of land use on the Chironomidae community in streams in two drainage areas in southern Brazil. Chironomid larvae were collected in1st and 2nd orders. The riparian zone of streams (30 m on both sides) had its landscape analyzed using GIS techniques, and land uses classified as consistent and non-consistent. The land use influence was different between the two drainage areas. Likewise, the composition of Chironomidae community in streams was different between the two drainage areas. Among the different land uses, the community was influenced mainly by agriculture and arboreous vegetation. We conclud that the aquatic communities respond to environmental changes not only at local scale but also at broader scales, such as landscape features of the surrounding areas. Ecología Austral, 24:335-342 (2014)Trabalhos com ecologia de riachos tem buscado compreender os padrões de distribuição das comunidades aquáticas procurando responder de que forma os fatores locais e regionais, influenciam na ocorrência e persistência de determinadas espécies nesses ecossistemas. Este estudo investigou a influência dos usos e ocupação da terra sobre a comunidade de Chironomidae em riachos em duas áreas de drenagem no sul do Brasil. Larvas de Chironomidae foram coletadas em riachos de 1a e 2a ordens. A zona ripária dos riachos (30 m em ambas as margens) teve sua paisagem analisada utilizando técnicas de geoprocessamento e diferentes usos e ocupação da terra foram classificados e quantificados. Os usos e ocupação da terra foram diferentes entre as duas áreas de drenagem estudadas. Da mesma forma, a composição da comunidade de Chironomidae nos riachos foi diferente entre as duas áreas de drenagem. Dentre os diferentes usos e ocupação da terra quantificados, a comunidade foi influenciada principalmente pela agricultura e vegetação arbórea nativa. As variações na paisagem demonstraram que o aumento na área de agricultura e a diminuição da área de vegetação ripária são os principais atributos da paisagem que influenciam as comunidades de Chironomidae. Asociación Argentina de Ecología 2014-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articles Artículos application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/11 10.25260/EA.14.24.3.0.11 Ecología Austral; Vol. 24 No. 3 (2014): December 2014, Pages 265-364; 335-342 Ecología Austral; Vol. 24 Núm. 3 (2014): December 2014, Pages 265-364; 335-342 1667-782X 0327-5477 spa https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/11/11 Derechos de autor 2015 Kamila R. De Toni, Diane Nava, Rozane M. Restello, Vanderlei Decian, Ivan L. Rovani, Luiz U. Hepp https://creativecommons.org/licenses/by/3.0/ |
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De Toni, Kamila R. Nava, Diane Restello, Rozane M. Decian, Vanderlei Rovani, Ivan L. Hepp, Luiz U. |
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De Toni, Kamila R. Nava, Diane Restello, Rozane M. Decian, Vanderlei Rovani, Ivan L. Hepp, Luiz U. Landscape integrity and influence on Chironomidae composition assemblages in small order streams |
author_facet |
De Toni, Kamila R. Nava, Diane Restello, Rozane M. Decian, Vanderlei Rovani, Ivan L. Hepp, Luiz U. |
author_sort |
De Toni, Kamila R. |
title |
Landscape integrity and influence on Chironomidae composition assemblages in small order streams |
title_short |
Landscape integrity and influence on Chironomidae composition assemblages in small order streams |
title_full |
Landscape integrity and influence on Chironomidae composition assemblages in small order streams |
title_fullStr |
Landscape integrity and influence on Chironomidae composition assemblages in small order streams |
title_full_unstemmed |
Landscape integrity and influence on Chironomidae composition assemblages in small order streams |
title_sort |
landscape integrity and influence on chironomidae composition assemblages in small order streams |
description |
Ecología Austral, 24:335-342 (2014)Studies in stream ecology are aimed at understanding the patterns of distribution of aquatic communities, trying to answer how local and regional factors influence the occurrence and persistence of species in these ecosystems. This study investigated the influence of land use on the Chironomidae community in streams in two drainage areas in southern Brazil. Chironomid larvae were collected in1st and 2nd orders. The riparian zone of streams (30 m on both sides) had its landscape analyzed using GIS techniques, and land uses classified as consistent and non-consistent. The land use influence was different between the two drainage areas. Likewise, the composition of Chironomidae community in streams was different between the two drainage areas. Among the different land uses, the community was influenced mainly by agriculture and arboreous vegetation. We conclud that the aquatic communities respond to environmental changes not only at local scale but also at broader scales, such as landscape features of the surrounding areas. |
publisher |
Asociación Argentina de Ecología |
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2014 |
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https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/11 |
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