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      Resposta da assembleia de formigas na interface solo-serapilheira a um gradiente de alteração ambiental Translated title: Response of the ant assemblage to a gradient of environmental change in the soil-litter interface

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          Abstract

          O estudo objetivou avaliar a resposta da assembleia de formigas que nidificam na interface solo-serapilheira a um gradiente de alteração ambiental. O estudo foi realizado em três ambientes com diferentes usos do solo: fragmento florestal, sistema agroflorestal (SAF) e pastagem situados em região de domínio da mata atlântica no sudeste do Brasil. Em cada ambiente foram demarcadas 10 parcelas de 1 m² e todos os ninhos de formigas encontrados foram registrados. Foram encontrados 215 ninhos (103 no fragmento florestal, 64 no sistema agroflorestal e 48 na pastagem), de 31 espécies. O número acumulado de espécies foi maior no fragmento florestal que na pastagem, mas não diferiu do SAF. A composição de espécies foi diferente entre o fragmento florestal e os outros dois ambientes. A riqueza média de espécies de formigas por parcela foi maior no fragmento florestal e menor na pastagem. A quantidade de serapilheira não foi um fator importante para as diferenças na riqueza de espécies. Atividades humanas que reduzam a heterogeneidade da vegetação alteram a composição e diminuem a riqueza de espécies das assembleias de formigas.

          Translated abstract

          The present study aimed at assessing the response of the assemblage of ants that nest in the soil-litter interface to a gradient of environmental change. Fieldwork was carried out in three environments under different land use regimes: a forest fragment, an agroforestry system (AFS), and a pasture, all located within the Atlantic Forest of southeastern Brazil. In each environment we marked ten 1-m² plots and recorded all ant nests found within them. We recorded 215 nests (103 in the forest, 64 in the AFS, and 48 in the pasture) of 31 species. The cumulative number of species was higher in the forest than in the pasture; the forest and the AFS differed from the pasture, but did not differ from each other. Species composition differed between the forest and the other two environments. The average species richness was high in the forest and low in the pasture. The amount of litter did not explain the differences in species richness among environments. Human activities that reduce vegetation heterogeneity change the composition and reduce the richness of the ant assemblage.

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          Most cited references33

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          Ant biodiversity and its relationship to ecosystem functioning: a review

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            EstimateS turns 20: statistical estimation of species richness and shared species from samples, with non-parametric extrapolation

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              Ants as bioindicators of soil function in rural environments

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                isz
                Iheringia. Série Zoologia
                Iheringia, Sér. Zool.
                Fundação Zoobotânica do Rio Grande do Sul (Porto Alegre )
                1678-4766
                June 2013
                : 103
                : 2
                : 104-109
                Affiliations
                [1 ] Universidade Federal Rural do Rio de Janeiro Brazil
                [2 ] Universidade Federal Rural do Rio de Janeiro Brazil
                [3 ] Centro Universitário de Volta Redonda Brazil
                Article
                S0073-47212013000200004
                10.1590/S0073-47212013000200004
                8bd9e9ec-55d9-4579-b3a0-58d509af8f03

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0073-4721&lng=en
                Categories
                ZOOLOGY

                Animal science & Zoology
                Agroecosystem,biodiversity,biotic factors,Agroecossistema,biodiversidade,fatores bióticos

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