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All publications of “José Paulo Sousa”

3 results

Collembola Community Structure as a Tool to Assess Land Use Effects on Soil Quality

Luís Carlos Iuñes de Oliveira Filho, Osmar Klauberg Filho, Dilmar Baretta, Cynthia Akemi Shinozaki Tanaka, José Paulo Sousa

09/Dec/2016

ABSTRACT: Collembolan species are differently affected by soil tillage (conventional, minimum tillage, and no-tillage) and are known to modify plant growth. This study relies on the relationships between Collembola community structures and land use systems as a proxy for characterizing changes in soil quality. Thus, Collembola community structure (eco-morphological groups – edaphic, hemiedaphic and epigeic, and morphotypes) were examined in a no-tillage system and crop-livestock integration system to evaluate the discriminative power of the Collembola community structure and to determine […]

Behavioral avoidance tests to evaluate effects of cattle slurry and dairy sludge application to soil

Mariana Matos-Moreira, Júlia Carina Niemeyer, José Paulo Sousa, Mário Cunha, Emilio Carral

01/Aug/2011

The application of organic wastes to agricultural soils is not risk-free and can affect soil invertebrates. Ecotoxicological tests based on the behavioral avoidance of earthworms and springtails were performed to evaluate effects of different fertilization strategies on soil quality and habitat function for soil organisms. These tests were performed in soils treated with: i) slurry and chemical fertilizers, according to the conventional fertilization management of the region, ii) conventional fertilization + sludge and iii) unfertilized reference soil. Both fertilization strategies […]

Springtails (Hexapoda: Collembola) as soil quality bioindicators in areas with Araucaria angustifolia

Dilmar Baretta, Cristina Seabra Ferreira, José Paulo Sousa, Elke Jurandy Bran Nogueira Cardoso

01/Dec/2008

There is no information about the diversity of springtails associated with Araucaria angustifolia (Bert.) O. Kuntze forests in Brazil. This study was carried out to evaluate the potential of springtail family diversity as a soil quality indicator and to separate different Araucaria areas, using soil chemical and microbiological attributes as explanatory variables. The study was conducted in four areas of: 1. native forest with predominance of Araucaria (NF); 2. Araucaria reforestation (R); 3. Araucaria reforestation burnt by an accidental fire […]