Categorização functional trófica das comunidades de macroinvertebrados de dois reservatórios na região centro-oeste do Estado de São Paulo, Brasil

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da Silva, Fabio Laurindo
Pauleto, Gustavo Mayer
Talamoni, Jandria Liria Biscalquini [UNESP]
Ruiz, Sonia Silveira [UNESP]

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The use of the concept of guild can be useful for the functional trophic categorization of communities, because there is no requirement identification of organisms in the level of species and not to treat each species as a separate entity. The aim of this study was to analyze the functional feeding groups (collectors-gatherers, collectors-filterers, shredders, predators and grazer-scrapers) of the macroinvertebrate communities of two reservoirs in the Midwestern region of São Paulo State. Sampling was carried out in rainy (March/April - 2001) and dry (July/August - 2001) seasons and the data obtained indicate that 'collectors-gatherers' is the most frequent guild. This fact suggests a great importance of organic matter as a food source in the diet of the macroinvertebrates analyzed.



Estação Ecológica de Caetetus, Functional feeding groups, Guilds, Parque zoológico municipal de Bauru, organic matter, animal community, animal experiment, animal food, Brazil, controlled study, macroinvertebrate, nonhuman, organismal interaction, seasonal variation, taxonomic identification, trophic level

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Acta Scientiarum - Biological Sciences, v. 31, n. 1, p. 73-78, 2009.