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      Organic matter decomposition in subtropical South America aquatic environments: a systematic and scientometric review Translated title: Decomposição de detritos orgânicos em ambientes aquáticos continentais em clima subtropical da América do Sul: uma revisão sistemática e cienciométrica

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          Abstract: Aim To evaluate the general situation of studies on the decomposition of organic matter in aquatic environments in the subtropical region of South America. Methods We compiled publications (1990-2018) with a combination of words referring to decomposition, debris, aquatic environments and South American countries with subtropical climate. The characteristics of the publications were analysed over time. Results A total of 1,042 publications were found, with 106 specifically addressing the purpose of this study. For subtropical climates in South America, this research topic is incipient. Most studies were carried out in streams (39.6%) and studied the decomposition process and associated invertebrates (42.5%). There is a great deficiency of studies in lentic environments (e.g. lakes, 10%). Conclusion Studies on the decomposition of organic detritus in aquatic ecosystems in the subtropical region of South America are still emerging. While the knowledge about the role of shredders is more or less understood, the importance of microorganisms on the decomposition process still needs to be better evaluated. Finally, our study demonstrated that scientific collaboration boosted publication on the topic.

          Translated abstract

          Resumo: Objetivo Avaliar a situação geral dos estudos sobre a decomposição da matéria orgânica vegetal em ambientes aquáticos continentais da região subtropical da América do Sul. Métodos Utilizamos bancos de dados e compilamos publicações (1990-2018) utilizando combinações de palavras referentes à decomposição, detritos, ambientes aquáticos e países da América do Sul com clima subtropical. As características das publicações foram analisadas ao longo do tempo. Resultados Um total de 1.042 publicações foram encontradas, com 106 tratando especificamente do objetivo deste estudo. Em clima subtropical na América do Sul este tópico de pesquisa é incipiente. A maioria dos estudos foi realizada em riachos (39,6%) e avaliou o processo de decomposição e a associação de invertebrados (42,5%). Há uma grande deficiência em estudos realizados em ambientes lênticos (e.g. lagos, 10%). Conclusão Os estudos sobre a decomposição de detritos orgânicos em ecossistemas aquáticos na região subtropical da América do Sul são ainda emergentes. Enquanto o conhecimento sobre o papel dos fragmentadores é razoável, poucos estudos têm avaliado a importância de microrganismos no processo de decomposição. Finalmente, nosso estudo demonstrou que as colaborações científicas impulsionaram as publicações sobre o tema.

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          Most cited references 75

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          Diversity meets decomposition.

          Over 100 gigatons of terrestrial plant biomass are produced globally each year. Ninety percent of this biomass escapes herbivory and enters the dead organic matter pool, thus supporting complex detritus-based food webs that determine the critical balance between carbon mineralization and sequestration. How will changes in biodiversity affect this vital component of ecosystem functioning? Based on our analysis of concepts and experiments of leaf decomposition in forest floors and streams, we suggest that changes in species diversity within and across trophic levels can significantly alter decomposition. This happens through various mechanisms that are broadly similar in forest floors and streams. Differences in diversity effects between these systems relate to divergent habitat conditions and evolutionary trajectories of aquatic and terrestrial decomposers. Copyright (c) 2010 Elsevier Ltd. All rights reserved.
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                Author and article information

                Acta Limnologica Brasiliensia
                Acta Limnol. Bras.
                Associação Brasileira de Limnologia (Rio Claro, SP, Brazil )
                : 33
                Três Lagoas Mato Grosso do Sul orgnameUniversidade Federal de Mato Grosso do Sul Brazil
                Rio Grande Rio Grande do Sul orgnameUniversidade Federal do Rio Grande orgdiv1Instituto de Ciências Biológicas Brazil
                Rio Grande Rio Grande do Sul orgnameUniversidade Federal do Rio Grande orgdiv1Programa de Pós-graduação em Biologia de Ambientes Aquáticos Continentais Brazil
                S2179-975X2021000100202 S2179-975X(21)03300000202

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                Thematic Section: Limnology of Subtropical Aquatic Environments


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