Bird community in an Araucaria forest fragment in relation to changes in the surrounding landscape in Southern Brazil

摘要: The dynamics of the bird community in a small forest fragment was evaluated along seven years relation to changes surrounding landscape. study area is an Araucaria Southern Brazil (state Parana). sampling period covered 1988 through 1994 and mark-release-recapture method utilized. landscape analysis based on Landsat TM images, exotic tree plantations, native forest, open areas (agriculture, pasture, bare soil, abandoned field), "capoeira"(native vegetation < 2 m) were quantified. relationship between abundance diversity birds, open-area forest-edge bamboo specialists evaluated. Richness estimates run for each year studied. richness recorded comprised 96 species. 114, 118 110 species Chao 1, Jackknife 1 Bootstrap, respectively. varied richness, from year. As diversity, 1991, 1993 significantly different other years. Changes contributed increase groups bamboo-specialist An important factor discussed effect flowering "taquara" (Poaceae), which increasing seed eaters, mainly 1992 1993. In general, results showed that affected structure this over time, proved have role conservation avian intensive forestry agricultural activities.