Diversity and habitat preferences of Carabidae and Staphylinidae (Coleoptera) in two agroecosystems

• Main Authors: Ivan Carlos Fernandes Martins, Francisco Jorge Cividanes, Sergio Ide, Gianni Queiroz Haddad
• Format: Article
• Language: English
• Published: Instituto Agronômico de Campinas 2012-01-01
• Series: Bragantia
• Subjects: Carabídeos; estafilinídeos; sistemas de plantio direto; fragmento florestal; borda
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052012000400004&lng=en&tlng=en

The present study had as objective determine the diversity and abundance of adults Carabidae and Staphylinidae in two areas, constituted by forest fragment and soybean/corn crops under conventional tillage and no-tillage systems and to analyze the distribution and preference of those beetles for the habitat. The beetles were sampled with 48 pitfall traps. In both experimental areas, two parallel transects of pitfall traps were installed. Each transect had 100 m in the crop and 100 m in the forest fragment. Four traps were close to each other (1 m) in the edge between the crop and the forest fragment, the other traps were installed each 10 m. The obtained data were submitted to the faunistic analysis and the preference of the species by habitat was obtained by cluster analysis. The results demonstrated that the type of crop system (conventional tillage or no-tillage) might have influenced the diversity of species of Carabidae and Staphylinidae. The cluster analysis evidenced that the carabids may prefer a specific habitat. In the present study, the distribution of carabids and staphylinids in the three habitats showed that these beetles have potential to be dispersed at great distances inside the crop.