Abstract This study evaluates the potential of fauna attractiveness according to brushwood transposition in an abandoned mining area under restoration in Rio Grande do Sul, Brazil. Sixteen areas of brushwood measuring 2 m² area and 1 m high were installed. The occurrence of fauna groups under and around the brushwood piles was then observed with use of bi-monthly surveys. Data were collected using a non-destructive method and the animals were identified by order and separated by taxonomic units. Twenty-three fauna orders were found, with the most frequent being Anura, Araneae, Hymenoptera and Isoptera. There was an increase in the number of taxonomic units found in each survey, with a significant difference after ten months of installation. The results indicate that the brushwood was attractive to the fauna and provided new habitats and coexistence between different fauna groups during the monitored period.

Conhecer a regeneração florestal em áreas dominadas por bambu pode auxiliar no gerenciamento das espécies nestas áreas, assim como auxiliar em propostas de recuperação e restauração destes ambientes. Dessa forma, o presente trabalho objetivou conhecer a estrutura, composição florística, mecanismos de dispersão, tolerância à sombra e hábito de vida das espécies da regeneração natural presentes em área sob domínio da espécie exótica Bambusa tuldoides Munro. O estudo foi desenvolvido em área de floresta estacional, município de Eldorado do Sul, Rio Grande do Sul, Brasil. Foram demarcadas 30 parcelas de 12x12 m, totalizando 0,432 ha de amostragem. Foram medidos e identificados todos os indivíduos presentes na classe I: altura maior ou igual a 30 cm e menor que 130 cm (30≤ H<130 cm) e na classe II: circunferência à altura do peito menor ou igual a 5 cm (CAP≤5). Foram observadas baixa densidade de indivíduos e espécies, principalmente na Classe II. Ocotea puberula, Myrsine umbellata, Trichilia elegans e Cupania vernalis apresentaram maior distribuição e relação com a área de bambus. Quanto à ecologia das espécies da regeneração, a maiorias destas podem ser classificadas como tolerantes à sombra (53%), de dispersão zoocórica (87%) e hábito de vida arbóreo (54%). Conclui-se que na área de superabundância de Bambusa tuldoides analisada, a classe da regeneração apresenta baixa densidade de espécies, indivíduos de pequeno porte, tolerantes à sombra e de dispersão zoocórica. Estas informações, devem ser consideradas para futuras ações de manejo e recuperação no local de estudo.

Understand the native forest regeneration process in areas dominated by bamboo can be a support to the management of these species, as well as assist in proposals for recovery and restoration of these environments. Therefore, this study aimed to evaluate concomitantly the structure, floristic composition, mechanisms of dispersion, shade tolerance and lifeforms of the natural regenerating species present in the area under dominance of exotic species Bambusa tuldoides Munro. The study was carried out in seasonal forest, in the municipality of Eldorado do Sul, state of Rio Grande do Sul, Brazil. Thirty plots of 12x12 m (0.432 ha) were sampled and the plants divided into two classes. In Class I were measured and identified all the individuals with height greater or equal to 30 cm and less than 130 cm (30 ≤ H <130 cm) and in the Class II all the individuals with a circumference at breast height less than or equal to 5 cm (CBH≤5). Low density of individuals and species were observed, mainly in Class II. Ocotea puberula, Myrsine umbellate, Trichilia elegans and Cupania vernalis showed a greater distribution and relation with the bamboos area. About ecology, the majority of regenerating species can be classified as tolerant to shade (53%), zoocoric dispersion (87%) and arboreal lifeform (54%). It is concluded that in the area of superabundance of Bambusa tuldoides, the regeneration class (Class I) presents low density of species, small individuals, tolerant to shade and with zoocoric dispersion. It information should be considered for future management and recovery actions at the site.