|Support type:||Scholarships in Brazil - Master|
|Effective date (Start):||August 01, 2014|
|Effective date (End):||February 28, 2015|
|Field of knowledge:||Biological Sciences - Ecology - Ecosystems Ecology|
|Principal researcher:||Plínio Barbosa de Camargo|
|Grantee:||Fernanda Gaudio Augusto|
|Home Institution:||Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil|
Despite the great biological importance of the Atlantic Forest, this is finds seriously threatened by humanaction through, for example, the change in land use, being left about 8% of its original cover. Thisdevastation includes degradation of its water systems which are linked to important processes such asenergy transfer and nutrient cycling in the ecosystem. Much of the energy in aquatic systems is available infrom external sources to them and the decomposition of this material is extremely important in providingenergy and nutrients for them. Stages of the decomposition process results from the activity ofmacroinvertebrates, these organisms are essential in the conversion of coarse organic matter into fineorganic matter. That said, this study aims to analyze the performance of macroinvertebrate shredders inleaf decomposition by experiments with litter bags filled with C 3 and C 4 plants in three streams of theSerra do Mar, State of São Paulo, one in grassland and two forest one of them with rocky bed and anotherin sandy bed. Furthermore, the isotope methodology will be used to demonstrate the consumption ofinvertebrates and some environmental indices are calculated. Through this comparing altered streams andnot altered in the same basin, you can understand how changes in coverage and land use affect the basicoperating procedures of these water bodies.