Survey and biology of benthic freshwater Insecta and Oligochaeta from the State of São Paulo

Abstract

The present project aims at carrying on the faunistic survey of two groups of benthic freshwater macroinvertebrates, insects and oligochates, with emphasis on lotic systems. The previous project included also crustaceans and molluscs; for both a survey was made in the main hydrographic basins of the State. The area sampled for insects was smaller due to the much poorer knowledge of their taxonomy. The emphasis was on protected areas in Serra do Mar and Serra da Mantiqueira in order to have a better knowledge of local faunas, ecological aspects included. The survey of oligochaetes also was restricted, as the group was included into the project in the beginning of its third year. For the present project the area to be sampled is enlarged, with three new areas in the State, the State Parks of Vassununga, Fumas do Bom Jesus and Caetetus. Two areas from the first project, The State Parks of Intervales and Campos do Jordão, are maintained because there are still ongoing research projects there. Samplings in the neighborhood of the principal researchers' institutions (Araraquara, São Cartos and Ribeirão Preto) will also be continued. At the end of the second year of the project, the inclusion of new areas will be considered. The project comprises three subprojects, to be carried on in an integraded manner, optimizing resources and field activities: Freshwater Diptera (Chironomidae, Simuliidae), Ephemeroptera, Plecoptera, Trichoptera (EPT), and Oligochaeta. Other aquatic insects will also be collected. A significant part of the material will be deposited in the Museum of Zoology of the University of São Paulo. (AU)