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Benthic macrofauna of a urban stream (Angatuba, SP) under the influence of different anthropogenic pressures: a longitudinal and seasonal analysis of the composition and diet

Grant number: 13/05655-5
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): September 01, 2013
Effective date (End): February 28, 2015
Field of knowledge:Biological Sciences - Ecology - Ecosystems Ecology
Principal Investigator:Virginia Sanches Uieda
Grantee:Maria Lúcia Berchiol Iwai
Host Institution: Instituto de Biociências (IBB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


In lotic ecosystems, the benthic macroinvertebrates have a great ecological importance, taking part in the energy flow and nutrient cycling. They also have been described as the group which best reflects the degree of integrity of the environment. This study aims to analyze the composition and organization of benthic macrofauna along a longitudinal transect in Ribeirão Grande stream, located in the urban area of Angatuba, SP. Spatial variations will be verified based on the influence of different anthropogenic pressures on the stream. Seasonal changes will be analyzed due to temporary alterations in the environment structure. For aquatic insects, the gut content will be analyzed in order to define species diet and trophic groups. In July 2013 (dry season) and January 2014 (rainy season), environmental analysis and macrofauna samples with Surber sampler (mesh 250m¼) will be performed at five collecting sites. The macroinvertebrates will be collected in riffles and runs, which are the prevalent and greater extent mesohabitats in all points of the longitudinal transect. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
UIEDA, V. S.; IWAI, M. L. B.; ONO, E. R.; MELO, A. L. U.; ALVES, M. I. B.. How seasonality and anthropogenic impacts can modulate the structure of aquatic benthic invertebrate assemblages. COMMUNITY ECOLOGY, v. 18, n. 1, p. 47-55, . (13/05655-5)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
IWAI, Maria Lúcia Berchiol. Macroinvertebrados bentônicos de um riacho urbano (Angatuba, SP) sob influência de diferentes pressões antrópicas: uma análise longitudinal e sazonal da composição e dieta. 2015. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências. Botucatu Botucatu.

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