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Composição e dinâmica da avifauna da mata de Santa Genebra, Campinas, São Paulo, Brasil

1995; Sociedade Brasileira de Zoologia; Volume: 12; Issue: 3 Linguagem: Inglês

10.1590/s0101-81751995000300004

1806-969X

Alexandre Luis Padovan Aleixo, Jacques Vielliard,

Wildlife-Road Interactions and Conservation

A quali-quantitatiw survey 01' avi fauna was earried out at the Sanla Genehra forest reserve (MSG) in order to evaluate lhe <:urrent stah~oI' çonservation ar this ilnportant conservation arca in lhe interior 01' São Paulo State.The qualitative survey reeorueu 134 species and lhe quantilative survey through unlimited uistanee point counls reeonled lhe ahundanee 01' 97 speeies.The low numhcr oI' speeies reeordeu in bolh surveys was due to the small size (151 ha) anu lhe high degree oI' isolation oI' the MSG.These faelors plus lhe exknsive degradation ofthe forest cover pn.::vent reçoloni/.ation of extind species anti allow lhe expansion of some species tnkrant to Jisturhulll:e.The quantitative survey shnwcd some spccies with ao unusually high ahundance indexo The ahundam:e af 1110St speçies aI MSG is higher when çOlllpared with olher arcas of similar vegdation whidl are 110t fragmcnh:d ano isolatcd.There was no striking scasonal variation in th~nU1llh~r 01' hinJs r~í.:ord~d.Th~& I,;aract~ristics ~ould h(: int(:l'Pf(:te:d as resulting from the density compensalion phenomenon.The struclure oI' the bird communily 01' MSG resembles Ihat from an island with low number 01' speeies hul overall uensity similar lO thal ofthe mainland.Icauing to a higher uensily per speeies.The proeess responsible fi", these patterns seems to be relateu to the habilat approprialeness.mainly beeause lhe MSG is eomplctcly isolatcu from olher foresl ar~as .