-The ecological restoration of degraded areas using seeds collected in forest remnants has shown significant results. This study was developed to verify the potential of seed rain to regenerate forest fragments of a Permanent Preservation Area (PPA) in the Apa River Basin which is located in the southwestern portion of the Mato Grosso do Sul state, Brazil. To develop the study, we installed 25 collectors measuring 1 m 2 each, which were systematically distributed on an area of 1.5ha. Seed gathering was conducted in a monthly basis throughout the year of 2013. A total of 26.411 propagules were identified and distributed among 50 species, 45 genera and 32 families. In terms of the propagules distribution, 70.51% were identified as trees, 22.8% as lianas, 6.5% as shrubs, 0.1 as herbaceous, 0.05% as palm and 0.05% could not be classified. The value for the Shannon Diversity Index was (H ') = 1.67 and the Pielou Evenness index was (J) = 0.42. These results indicate that the seeds rain has low species diversity with the abundance of a few species. The overall results suggest that seed rain can be a potential technique for restoration of the PPAs and other forested areas. However, it is necessary to enhance the diversity of tree species. cada um, distribuídos de forma sistemática em uma área de 1,5 ha. As coletas foram realizadas mensalmente durante o ano 2013. Foram identificados um total de 26.411 propágulos, distribuídos em 50 espécies, 45 gêneros e 32 famílias. Em termos de distribuição dos propágulos, 70,51% é do tipo arbóreo, 22,8% de lianas, 6,5% de arbustivas, 0,1% de herbáceas, 0,05% de palmeiras e 0,05% não puderam ser classificados. O valor do Índice de Diversidade de Shannon (H') foi de 1,67 e o índice de Equabilidade de Pielou (J') = 0,42. Esse resultado indica que a chuva de sementes tem baixa diversidade de espécies com abundância de algumas espécies. Os 22Revista Árvore, Viçosa-MG, v.40, n.1, p.21-28, 2016 SILVA, E.P. et al.resultados sugerem que a chuva de sementes apresenta potencial como técnica para restauração de APPs e outras áreas similares da região. No entanto, é necessário aumentar a diversidade de espécies arbóreas.Palavras-chave: Restauração; Mata ciliar; Chuva de sementes.
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