Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1519-6984.15013 http://hdl.handle.net/11449/177396 |
Resumo: | Through a manipulative experiment, the colonization of leaf litter by invertebrates was investigated in two sections of a tropical stream (spatial scale) that differed in function of the canopy cover, one with the presence (closed area) and another without riparian vegetation (open area), during one month of the dry and one of the wet season (temporal scale). The work aimed to verify differences related to four variables: season, canopy cover, leaf type and leaf condition. Litter bags containing arboreal and herbaceous leaves (leaf type variable), non-conditioned and preconditioned (leaf condition variable) were placed at the bottom of the stream in each area (canopy cover variable) and season (dry and wet), and removed after 13-day colonization. The analysis of the remaining litter dry mass per leaf bag emphasizes differences related mainly to seasonality, canopy cover and leaf type, although leaf condition was also important when combined with those three factors. Comparing the abundance of invertebrates per treatment, there was a tendency of high predominance of Chironomidae during the dry season and greater taxa diversity and evenness during the wet season, when the water flow increase could alter the availability of microhabitats for local fauna. Even though canopy cover alone was not a significant source of variation in the abundance of invertebrates, the results showed a tendency of a combined effect of canopy cover with seasonality and leaf condition. |
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Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordemExperimental manipulation of leaf litter colonization by aquatic invertebrates in a third order tropical streamAquatic insectsHeadwater streamsLeaf breakdownSeasonal variationSpatial variationThrough a manipulative experiment, the colonization of leaf litter by invertebrates was investigated in two sections of a tropical stream (spatial scale) that differed in function of the canopy cover, one with the presence (closed area) and another without riparian vegetation (open area), during one month of the dry and one of the wet season (temporal scale). The work aimed to verify differences related to four variables: season, canopy cover, leaf type and leaf condition. Litter bags containing arboreal and herbaceous leaves (leaf type variable), non-conditioned and preconditioned (leaf condition variable) were placed at the bottom of the stream in each area (canopy cover variable) and season (dry and wet), and removed after 13-day colonization. The analysis of the remaining litter dry mass per leaf bag emphasizes differences related mainly to seasonality, canopy cover and leaf type, although leaf condition was also important when combined with those three factors. Comparing the abundance of invertebrates per treatment, there was a tendency of high predominance of Chironomidae during the dry season and greater taxa diversity and evenness during the wet season, when the water flow increase could alter the availability of microhabitats for local fauna. Even though canopy cover alone was not a significant source of variation in the abundance of invertebrates, the results showed a tendency of a combined effect of canopy cover with seasonality and leaf condition.Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista ‘Júlio de Mesquita Filho’ – UNESP, CP 510Universidade Federal da Grande Dourados - UFGD, CP 322Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista ‘Júlio de Mesquita Filho’ – UNESP, CP 510Universidade Estadual Paulista (Unesp)Universidade Federal da Grande Dourados - UFGDUieda, V. S. [UNESP]Carvalho, E. M.2018-12-11T17:25:14Z2018-12-11T17:25:14Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article405-413application/pdfhttp://dx.doi.org/10.1590/1519-6984.15013Brazilian Journal of Biology, v. 75, n. 2, p. 405-413, 2015.1678-43751519-6984http://hdl.handle.net/11449/17739610.1590/1519-6984.15013S1519-698420150002000222-s2.0-84936764739S1519-69842015000200022.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Biology0,523info:eu-repo/semantics/openAccess2023-10-26T06:09:42Zoai:repositorio.unesp.br:11449/177396Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-26T06:09:42Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem Experimental manipulation of leaf litter colonization by aquatic invertebrates in a third order tropical stream |
title |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem |
spellingShingle |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem Uieda, V. S. [UNESP] Aquatic insects Headwater streams Leaf breakdown Seasonal variation Spatial variation |
title_short |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem |
title_full |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem |
title_fullStr |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem |
title_full_unstemmed |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem |
title_sort |
Manipulação experimental da colonização de detritos foliares por invertebrados aquáticos em um riacho tropical de 3ª ordem |
author |
Uieda, V. S. [UNESP] |
author_facet |
Uieda, V. S. [UNESP] Carvalho, E. M. |
author_role |
author |
author2 |
Carvalho, E. M. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal da Grande Dourados - UFGD |
dc.contributor.author.fl_str_mv |
Uieda, V. S. [UNESP] Carvalho, E. M. |
dc.subject.por.fl_str_mv |
Aquatic insects Headwater streams Leaf breakdown Seasonal variation Spatial variation |
topic |
Aquatic insects Headwater streams Leaf breakdown Seasonal variation Spatial variation |
description |
Through a manipulative experiment, the colonization of leaf litter by invertebrates was investigated in two sections of a tropical stream (spatial scale) that differed in function of the canopy cover, one with the presence (closed area) and another without riparian vegetation (open area), during one month of the dry and one of the wet season (temporal scale). The work aimed to verify differences related to four variables: season, canopy cover, leaf type and leaf condition. Litter bags containing arboreal and herbaceous leaves (leaf type variable), non-conditioned and preconditioned (leaf condition variable) were placed at the bottom of the stream in each area (canopy cover variable) and season (dry and wet), and removed after 13-day colonization. The analysis of the remaining litter dry mass per leaf bag emphasizes differences related mainly to seasonality, canopy cover and leaf type, although leaf condition was also important when combined with those three factors. Comparing the abundance of invertebrates per treatment, there was a tendency of high predominance of Chironomidae during the dry season and greater taxa diversity and evenness during the wet season, when the water flow increase could alter the availability of microhabitats for local fauna. Even though canopy cover alone was not a significant source of variation in the abundance of invertebrates, the results showed a tendency of a combined effect of canopy cover with seasonality and leaf condition. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2018-12-11T17:25:14Z 2018-12-11T17:25:14Z |
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/10.1590/1519-6984.15013 Brazilian Journal of Biology, v. 75, n. 2, p. 405-413, 2015. 1678-4375 1519-6984 http://hdl.handle.net/11449/177396 10.1590/1519-6984.15013 S1519-69842015000200022 2-s2.0-84936764739 S1519-69842015000200022.pdf |
url |
http://dx.doi.org/10.1590/1519-6984.15013 http://hdl.handle.net/11449/177396 |
identifier_str_mv |
Brazilian Journal of Biology, v. 75, n. 2, p. 405-413, 2015. 1678-4375 1519-6984 10.1590/1519-6984.15013 S1519-69842015000200022 2-s2.0-84936764739 S1519-69842015000200022.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal of Biology 0,523 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
405-413 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_ |
1799964707884367872 |