Publicação on-line; 26 ref.; 3 tables; 2 illus.; Summary (En)

ABSTRACT

Pioneer species have the potential to colonize disturbed environments, contributing to the
establishment of other species and driving the dynamics and advancement of the structure of
forest communities. The aim of this study was to assess the evolution of floristic-structural
composition in the regenerating stratum of communities formed in the Mimosa scabrella Benth.
understory with different ages. The study was carried out in four municipalities located in the Santa
Catarina State South Plateau, on communities with different successional ages. The plot method
was applied to the survey of all arboreal individuals with height ≥ 10 cm. The floristic-structural
patterns found were compatible with the expected trend of Araucaria Forest successional dynamic,
showing higher richness and abundance of regenerating individuals in the older understories.

Keywords: bracatinga, forest succession, natural regeneration, facilitation, Araucaria Forest.