O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise
There is no study aimed to synthesize the magnitude and variation of aquatic invertebrates for the decomposition of leaf litter in aquatic ecosystems. Furthermore, there is also a lack of knowledge about what is the overall impact of these small organisms on leaf decomposition. Moreover, there are a...
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Decomposição Detrito foliar Escala global Invertebrados Meta-análise CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
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Decomposição Detrito foliar Escala global Invertebrados Meta-análise CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA Francisco, Lucas Viegas O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
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There is no study aimed to synthesize the magnitude and variation of aquatic invertebrates for the decomposition of leaf litter in aquatic ecosystems. Furthermore, there is also a lack of knowledge about what is the overall impact of these small organisms on leaf decomposition. Moreover, there are a number of controversies that are the most influential factors on one of the most important processes of aquatic ecology. For example, the influence of latitude and temperature or yet the methodology employed for measuring the effect of the aquatic detritivorous invertebrates. Therefore the aim of our study was, through a meta-analytic review, understand how these organisms affect the decomposition of foliar detritus in aquatic ecosystems, and how this effect varies according to the methodological and environmental parameters most used. Through the evaluation of decomposition rates (k) in the presence and absence of these invertebrates 104 independent studies satisfied our selection criteria and were included in the database. To intention present representativeness of the sample, each used parameter in this analysis need to be present in over 90% of the selected studies. No publication bias was detected, although we verified a significant decrease in the invertebrate decomposition effect in longer experimental duration, indicating that short experiments reveal higher detritivoria while longer experiments manifest lower mass loss. As expected, these results cast reveal that in general the presence of invertebrates accelerates the decomposition process. Furthermore the global effect size, these effect are consistent and do not differ in relation to aquatic ecosystem types (lotic, lentic or marine), temperature or latitude of the experiments, even presenting a slight increase importance of invertebrates in the decomposition process toward lower latitudes. Therefore, this analysis contradicts the argument that invertebrates have a greater role in the decomposition of aquatic ecosystems at higher latitudes while microorganisms would be more important at minors. Temperature result also contradicts the preview and results of this and other reviews where it could reveal some variation of invertebrate effect. No weakness of invertebrate exclusion methods (mesh bags, electric field or toxic) or even the standardized mesh bag difference (a standardized difference between coarse and fine mesh bags) was found. In contrast to the most of literature, these parameters did not show any significant relationship with the effect size. However should be difficult affirm there is no additive effects of experimental exclusion or also standardized mesh size difference. Conversely, other factors interfere significantly in the decomposition mediated by invertebrates such as detritus origin (allochthonous or autochthonous) and experimental duration. Probably other parameters besides the not included in this analysis could explain the effect of invertebrates on leaf decomposition, however an insufficient number of available parameters hamper this assay. We conclude that this synthesis indicates that the role of detritivorous invertebrates should be included in biogeochemical models, which consider nutrient cycling in temperate or tropical aquatic ecosystems. More specifically these models should incorporate environmental parameters such as detritus origin, as well methodological parameters such as experimental duration. |
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Silva, Adriano Caliman Ferreira da |
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Silva, Adriano Caliman Ferreira da Francisco, Lucas Viegas |
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Francisco, Lucas Viegas |
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Francisco, Lucas Viegas |
title |
O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
title_short |
O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
title_full |
O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
title_fullStr |
O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
title_full_unstemmed |
O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
title_sort |
o efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise |
publisher |
Universidade Federal do Rio Grande do Norte |
publishDate |
2016 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/20420 |
work_keys_str_mv |
AT franciscolucasviegas oefeitodosinvertebradosaquaticosnadecomposicaodedetritosfoliaresumametaanalise AT franciscolucasviegas theeffectofaquaticinvertebratesonleaflitterdecompositionametaanalysis |
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ri-123456789-204202019-06-02T05:16:18Z O efeito dos invertebrados aquáticos na decomposição de detritos foliares: uma meta-análise The effect of aquatic invertebrates on leaf litter decomposition - a meta-analysis Francisco, Lucas Viegas Silva, Adriano Caliman Ferreira da http://lattes.cnpq.br/1245929043259894 http://lattes.cnpq.br/4147444251852878 Amado, André Megali http://lattes.cnpq.br/4312158184208542 Carneiro, Luciana Silva http://lattes.cnpq.br/0236958347394500 Suhett, Albert Luiz http://lattes.cnpq.br/2173663162208012 Decomposição Detrito foliar Escala global Invertebrados Meta-análise CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA There is no study aimed to synthesize the magnitude and variation of aquatic invertebrates for the decomposition of leaf litter in aquatic ecosystems. Furthermore, there is also a lack of knowledge about what is the overall impact of these small organisms on leaf decomposition. Moreover, there are a number of controversies that are the most influential factors on one of the most important processes of aquatic ecology. For example, the influence of latitude and temperature or yet the methodology employed for measuring the effect of the aquatic detritivorous invertebrates. Therefore the aim of our study was, through a meta-analytic review, understand how these organisms affect the decomposition of foliar detritus in aquatic ecosystems, and how this effect varies according to the methodological and environmental parameters most used. Through the evaluation of decomposition rates (k) in the presence and absence of these invertebrates 104 independent studies satisfied our selection criteria and were included in the database. To intention present representativeness of the sample, each used parameter in this analysis need to be present in over 90% of the selected studies. No publication bias was detected, although we verified a significant decrease in the invertebrate decomposition effect in longer experimental duration, indicating that short experiments reveal higher detritivoria while longer experiments manifest lower mass loss. As expected, these results cast reveal that in general the presence of invertebrates accelerates the decomposition process. Furthermore the global effect size, these effect are consistent and do not differ in relation to aquatic ecosystem types (lotic, lentic or marine), temperature or latitude of the experiments, even presenting a slight increase importance of invertebrates in the decomposition process toward lower latitudes. Therefore, this analysis contradicts the argument that invertebrates have a greater role in the decomposition of aquatic ecosystems at higher latitudes while microorganisms would be more important at minors. Temperature result also contradicts the preview and results of this and other reviews where it could reveal some variation of invertebrate effect. No weakness of invertebrate exclusion methods (mesh bags, electric field or toxic) or even the standardized mesh bag difference (a standardized difference between coarse and fine mesh bags) was found. In contrast to the most of literature, these parameters did not show any significant relationship with the effect size. However should be difficult affirm there is no additive effects of experimental exclusion or also standardized mesh size difference. Conversely, other factors interfere significantly in the decomposition mediated by invertebrates such as detritus origin (allochthonous or autochthonous) and experimental duration. Probably other parameters besides the not included in this analysis could explain the effect of invertebrates on leaf decomposition, however an insufficient number of available parameters hamper this assay. We conclude that this synthesis indicates that the role of detritivorous invertebrates should be included in biogeochemical models, which consider nutrient cycling in temperate or tropical aquatic ecosystems. More specifically these models should incorporate environmental parameters such as detritus origin, as well methodological parameters such as experimental duration. Até o momento não há um estudo que objetivou sintetizar a magnitude e variação do papel dos invertebrados aquáticos sobre a decomposição do detrito foliar em ambientes aquáticos. Além disso, existe uma falta de conhecimento sobre qual é o impacto geral desses pequenos organismos na decomposição foliar. Além do mais, existe um quantidade de controvérsias sobre como e quais devem ser os fatores mais influentes nesse processo ecológico. O objetivo deste estudo foi através de uma abordagem meta-analítica, entender como estes organismos afetam a decomposição foliar em ecossistemas aquáticos, e como este efeito varia de acordo com aspectos ecológicos e metodológicos. Foram incluídos estudos que avaliaram as taxas de decaimento exponencial na presença e ausência de invertebrados, sendo abordadas apenas as variáveis presentes em mais de 90% dos estudos do banco de dados. Como esperado, a presença dos invertebrados acelera a decomposição foliar e sua magnitude do efeito em escala global é consistente. Este efeito não difere em relação ao tipo de ecossistema (lótico ou lêntico), temperatura ou latitude. Portanto, esta análise contradiz o argumento que invertebrados tem um maior papel na decomposição em ecossistemas de altas latitudes enquanto microrganismos deveriam ser mais importantes mais próximo aos trópicos. Não observou-se nenhum viés ou quanto aos métodos de exclusão dos invertebrados ou ainda quanto a diferença entre as malhas. Apesar de ser difícil afirmar que não existem efeitos aditivos da exclusão experimental ou ainda a diferença entre as malhas. Provavelmente outros parâmetros não foram incluídos nesta análise poderiam explicar o efeito dos invertebrados na decomposição foliar, entretanto um insuficiente número de parâmetros disponíveis dificultam mais avaliações. Esta síntese conclui que o papel acelerador dos invertebrados detritívoros deveria ser incluída em modelos biogeoquímicos. Mais especificamente, estes modelos deveriam incorporar parâmetros como a origem do detrito e a duração experimental. 2016-05-09T22:36:53Z 2016-05-09T22:36:53Z 2013-07-04 masterThesis FRANCISCO, Lucas Viegas. O efeito dos invertebrados aquáticos na decomposição foliar: uma meta-análise. 2013. 30f. Dissertação (Mestrado em Ecologia) - Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, 2013. https://repositorio.ufrn.br/jspui/handle/123456789/20420 por Acesso Aberto application/pdf Universidade Federal do Rio Grande do Norte Brasil UFRN PROGRAMA DE PÓS-GRADUAÇÃO EM ECOLOGIA |