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Revista Brasileira de Zoologia

Print version ISSN 0101-8175

Rev. Bras. Zool. vol.16 no.4 Curitiba  1999

http://dx.doi.org/10.1590/S0101-81751999000400018 

Composição da avifauna em duas matas ciliares na bacia do rio Jacaré-Pepira, São Paulo, Brasil

 

Bird community composition of two riparian forests at Jacaré-Pepira river, São Paulo, Brazil

 

 

Maria Elisa de Castro AlmeidaI; Jacques M.E. VielliardII; Manoel Martins DiasI

IDepartamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Carlos. Caixa Postal 676, 13565-905 São Carlos, São Paulo, Brasil
IIDepartamento de Zoologia, Universidade Estadual de Campinas. Caixa Postal 6109, 13083-970 Campinas, São Paulo, Brasil

 

 


ABSTRACT

A quali-quantitative survey was carried out in two riparian forests fragmente (approximately 40 ha each) at Jacaré-Pepira river. Our intention was to characterize its bird community conceming richness, abundance and species occurrence in these areas. The qualitative survey showed 130 species at Santa Elisa (Brotas, São Paulo) and 151 at Morro Chato (Dourado, São Paulo), whereas the quantitative survey revealed the presence of 69 and 75 species at Santa Elisa and Morro Chato, respectively. The small size and the isolation might be responsible for the low number of species found. Observing the abundance index values (IPA) we realize that there are a few number of species with a high IPA on the one hand, while on the other there is a large number of species with intermediate and low IPA rates. A high detection coefficient (vocalization), low predatoiy rates and competition might have contributed for the higher abundance values found among these species. Furthermore, we have also registered species which are abundant in a fragment, but absent in the other, which might be explained by initial exclusion or local extinction. In spite of the riparian forests being protected by law, its clearing process has not stopped yet. Therefore, the study of this bird community is of uppermost impoitance for the elaboration of both conservation and management projects regarding these areas.

Key words: Bird community, unlimited distance point counts, riparian forest.


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

AGRADECIMENTOS. Os autores agradecem ao Programa de Pós-Graduação em Ecologia e Recursos Naturais da UFSCar pelo apoio logístico e ao CNPq pela bolsa concedida. Ao Eng1 Florestal Cássio H. G. Cezare e ao técnico Luiz Aparecido Joaquim (DEBE/UFSCar), pelo acompanhamento nos trabalhos de campo.

 

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Vielliard, J. & W.R. Silva. 1990. Nova metodologia de levantamento quantitativo da avifauna e primeiros resultados no interior do Estado de São Paulo, Brasil. Anais do IV ENAV, Recife, Universidade Federal Rural de Pernambuco, p. 117-151.         [ Links ]

 

 

Recebido em 11.XII.1997; aceito em 07.X.1999.