Abstract
The objective of this study was to evaluate the ecological relationships between different layers of a restored area in Vicosa, State of Minas Gerais. A floristic survey of the tree layer, natural regeneration and soil seed bank was carried out. The floristic composition between layers of the restored area (tree layer, regeneration and seed bank) was compared, and this composition was also compared to various forest fragments in the area; the comparisons were made through cluster analysis. The successional class and dispersion syndrome between layers of the restored area were compared by analysis of variance (ANOVA). The dendrogram obtained distinguished the seed bank of the other layers. There was no similarity between the area studied and the forest fragments in Vicosa. In the distribution by successional class and dispersal syndrome, there was significant difference between the seed bank and other layers of the restored area. Results evinced the discrepancy of the seed bank floristic compared to other layers of the forest, proving that the forest area is in a headmost stage of succession.
Highlights
The objective of this study was to evaluate the ecological relationships between different layers of a restored area in Viçosa, State of Minas Gerais
The floristic composition between layers of the restored area was compared, and this composition was compared to various forest fragments in the area; the comparisons were made through cluster analysis
The successional class and dispersion syndrome between layers of the restored area were compared by analysis of variance (ANOVA)
Summary
Grande parcela da biodiversidade do Brasil está inserida na Mata Atlântica, que atualmente está reduzida a remanescentes florestais isolados. A implantação de um projeto de restauração florestal, por mais bem planejado e executado que seja, não garante que determinada área conseguirá futuramente uma cobertura florestal com capacidade de regeneração e as demais funções ecológicas em pleno funcionamento (Martins, 2009). A dispersão de propágulos possui papel fundamental na colonização de ecossistemas e na formação da estrutura espacial e temporal de comunidades florestais, causando grande efeito em sua dinâmica e composição florística, como também influencia os processos subsequentes, como predação, competição por recursos e reprodução (Barbosa et al, 2009). O objetivo deste estudo foi avaliar as relações ecológicas entre os diferentes estratos (arbóreo, regeneração, banco de sementes) de uma área restaurada por meio de plantio, após 40 anos de sua implantação, no município de Viçosa-MG, e suas relações com outras comunidades vegetais de Florestas Estacionais Semideciduais da região de Viçosa-MG
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