Composição e dinâmica da comunidade de aves em fragmento de mata atlântica no extremo norte do Rio Grande do Sul

Abstract

The present goal was to characterize structure, composition and dynamics of bird community at an Atlantic Forest remnant at the extreme north of Rio Grande do Sul State as well to compare interior and forest edge related to (1) species composition, (2) richness, (3) abundance of functional groups and (4) Atlantic Forest abundance of endemics bird species. General description of the fragment and comparisons between forest interior and edge were based on 22 defined functional groups, however only 11 could be compared to statistical level, the other groups did not obtain sufficient sample data to be included in the analysis. Functional groups used in the comparison between the abundance of forest edge and interior were: generalist seedeater/insectivores, ground seedeater/frugivores, understory insectivores, mid and understory insectivores, tunk and twig insectivores, bamboo or forest tangle insectivores, canopy insectivores, mid and understory insectivore/frugivores, canopy insectivore/frugivores, nectarivore/in