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      Diversity of springtails (Collembola) in agricultural and forest systems in Southern Santa Catarina Translated title: Diversidade de colêmbolos (Collembola) em sistemas agrícolas e florestais no Sul de Santa Catarina

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          Abstract

          Abstract: The aim of this study was to evaluate the influence of soil use on the morphological diversity of springtails and to verify the relationship of these organisms with soil physical, chemical, and microbiological properties. Samples were collected in the Southern region of Santa Catarina, involving three municipalities: Orleans, Lauro Müller, and Siderópolis, in the land use systems (LUS) of native forest (NF), Eucalyptus plantation (EP), pasture (PA), integrated crop-livestock (ICL), and no-tillage (NT). Soil samples to determine edaphic properties and pitfall traps were collected in winter and summer, in the same areas. The collected springtails were counted and morphotyped and the data were analyzed through abundance, Shannon-Wiener diversity (H') and Margalef index, Simpson dominance index (D), Pielou evenness index (J), morphotype richness, and Principal Components Analysis (PCA). Springtails morphotypes were influenced by the management conditions of each system, especially the impact of LUS on these organisms depends on the intensity of the forest/agricultural practices used, including crop rotation and soil preparation.

          Translated abstract

          Resumo: O objetivo deste estudo foi avaliar a influência do uso do solo na diversidade morfológica de colêmbolos e verificar a relação destes organismos com os atributos físicos, químicos e microbiológicos do solo. Foram coletadas amostras na região Sul de Santa Catarina, envolvendo três municípios: Orleans, Lauro Müller e Siderópolis, nos sistemas de uso do solo (SUS) de floresta nativa (FN), reflorestamento de eucalipto (RE), pastagem perene (PA), integração lavoura-pecuária (ILP) e plantio direto (PD). As coletas de solo para determinação dos atributos edáficos e a instalação de armadilhas de queda, foram realizadas no inverno e verão, nos mesmos pontos. Os colêmbolos coletados foram contados e morfotipados e os dados foram analisados por meio da abundância, diversidade de Shannon-Wiener (H') e Margalef, índice de dominância de Simpson (D), uniformidade de Pielou (J), riqueza de morfotipos e Análise de Componentes Principais (ACP). Os morfotipos de Collembola foram influenciados pelas condições de manejo de cada sistema, sobretudo o impacto dos SUS nesses organismos depende da intensidade das práticas florestais/agrícolas utilizadas, incluindo rotações culturais e preparo do solo.

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          An extraction method for measuring soil microbial biomass C

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            Intensive agriculture reduces soil biodiversity across Europe.

            Soil biodiversity plays a key role in regulating the processes that underpin the delivery of ecosystem goods and services in terrestrial ecosystems. Agricultural intensification is known to change the diversity of individual groups of soil biota, but less is known about how intensification affects biodiversity of the soil food web as a whole, and whether or not these effects may be generalized across regions. We examined biodiversity in soil food webs from grasslands, extensive, and intensive rotations in four agricultural regions across Europe: in Sweden, the UK, the Czech Republic and Greece. Effects of land-use intensity were quantified based on structure and diversity among functional groups in the soil food web, as well as on community-weighted mean body mass of soil fauna. We also elucidate land-use intensity effects on diversity of taxonomic units within taxonomic groups of soil fauna. We found that between regions soil food web diversity measures were variable, but that increasing land-use intensity caused highly consistent responses. In particular, land-use intensification reduced the complexity in the soil food webs, as well as the community-weighted mean body mass of soil fauna. In all regions across Europe, species richness of earthworms, Collembolans, and oribatid mites was negatively affected by increased land-use intensity. The taxonomic distinctness, which is a measure of taxonomic relatedness of species in a community that is independent of species richness, was also reduced by land-use intensification. We conclude that intensive agriculture reduces soil biodiversity, making soil food webs less diverse and composed of smaller bodied organisms. Land-use intensification results in fewer functional groups of soil biota with fewer and taxonomically more closely related species. We discuss how these changes in soil biodiversity due to land-use intensification may threaten the functioning of soil in agricultural production systems.
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              Plant species richness drives the density and diversity of Collembola in temperate grassland

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                bn
                Biota Neotropica
                Biota Neotrop.
                Instituto Virtual da Biodiversidade | BIOTA - FAPESP (Campinas, SP, Brazil )
                1676-0611
                2019
                : 19
                : 3
                : e20180720
                Affiliations
                [4] Chapecó SC orgnameUniversidade Comunitária da Região de Chapeco Brasil
                [2] Lages Santa Catarina orgnameUniversidade do Estado de Santa Catarina orgdiv1Centro de Ciências Agroveterinárias orgdiv2Departamento de Solos e Recursos Naturais Brazil
                [3] Curitibanos Santa Catarina orgnameUniversidade Federal de Santa Catarina Brazil
                [5] Chapecó Santa Catarina orgnameUniversidade do Estado de Santa Catarina orgdiv1Centro de Educação Superior do Oeste orgdiv2Departamento de Zootecnia Brazil
                [1] Lages Santa Catarina orgnameUniversidade do Estado de Santa Catarina orgdiv1Centro de Ciências Agroveterinárias orgdiv2Departamento de Engenharia Florestal Brazil
                Article
                S1676-06032019000300207
                10.1590/1676-0611-bn-2018-0720
                1f71745f-022b-442b-a639-23acb251d638

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

                History
                : 17 December 2018
                : 30 May 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 31, Pages: 0
                Product

                SciELO Brazil

                Categories
                Article

                soil quality,edaphic mesofauna,Morfotipos de Collembola,bioindicadores,qualidade do solo,mesofauna edáfica,Collembola morphotypes,bioindicators

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