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vol.16 issue1Comparison of the comniunitics of Entomobryidae and Isotomidae (Collembola) among no-tillage in three levels of fertility, conventional tillage and a natural ecosystem (native grassland) in Ponta Grossa, Paraná, BrazilSystematic review of Neotropical Lauxaniidae genera: Cephalella Malloch (Diptera, Schizophora) author indexsubject indexarticles search
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Revista Brasileira de Zoologia

Print version ISSN 0101-8175

Rev. Bras. Zool. vol.16 no.1 Curitiba Mar. 1999

https://doi.org/10.1590/S0101-81751999000100007 

Comparação das comunidades de Sminthuroidea e Onychiuridae (Collembola) entre plantio direto em três níveis de fertilidade, plantio convencional e um ecossistema natural (campo nativo) em Ponta Grossa, Paraná, Brasil

 

Coniparison of the communities of Sminthuroidea and Onychiuridae (Collembola) among no-tillage in three levels of fertility, conventional tillage and a natural ecosystem (native grassland) in Ponta Grossa, Paraná, Brazil

 

 

Klaus Dieter SautterI; Honório Roberto dos SantosII; Paulo Justiniano Ribeiro JúniorIII

ICurso de Pós-Graduação em Engenharia Florestal, Setor de Ciências Agrárias, Universidade Federal do Paraná. Caixa Postal 2959, 80001-970 Curitiba, Paraná, Brasil
IIDCA/CEUD, Universidade Federal de Mato Grosso do Sul. Caixa Postal 533, 79804-970 Dourados, Mato Grosso do Sul, Brasil
IIIDepartamento de Estatística, Universidade Federal do Paraná. Caixa Postal 19081, 81531-990 Curitiba, Paraná, Brasil

 

 


ABSTRACT

This work had as objective to compare the communities of Sminthuroidea and Onychiuridae (Collembola) among no-tillage in three fertility levels, conventional tillage and a natural ecosystem (native grassland). In the conventional tillage and in the no-tillage in area of medium fertility, the community of Sminthuroidea had regular fluctuation along the period of the experiment, but wtth low densities. The no-tillage in area of high fertility presented a populational pick in the autumn; the no-tillage in area of low fertility, in the spring; and, the natural ecosystem, in the summer. As the final mean density of the population of Sminthuroidea, was observed that the no-tillage in area of low fertility went numerically superior to the others, proceeded by the natural ecosystem, no-tillage in area of high fertility, conventional tillage, and, finally, no-tillage in area of medium fertility. Onychiuridae had three populational picks in the no-tillage in area of low fertility: being a larger in the winter and other two, smaller in the summer and in the autumn. In the no-tillage in area of medium fertility presented only a populational pick in the winter. In the other treatments there was not significantly populational picks. In relation to the final mean density ofthe community of Onychiuridae, the no-tillage plantation in area of low fertility was superior, proceeded by the other treatments of no-tillage, and, in third plan, the natural ecosystem and the conventional tillage.

Key words: Collembola, Onychiuridae, Sminthuroidea, no-tillage, conventional tillage


 

 

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Recebido em 29.VIII.1997; aceito em 25.I.1999.

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