How bamboo influences the seed bank and biotic and abiotic factors of a Brazilian tropical forest

Autor(es)

Débora Cristina Rother ; Paula Ponteli Costa ^[2] ; Thaís Diniz Silva ^[3] ; Karinne Sampaio Valdemarin ^[4] ; Ricardo Ribeiro Rodrigues ^[5]

• Tipo de documento: Artigo Científico
• Fonte: Acta Botanica Brasilica; v. 35, n. 2, p. 179-187, 2021-10-18.

Resumo

ABSTRACT There is a knowledge gap regarding the influence of bamboos on natural regeneration. This study evaluated how abundance, richness, dominance, evenness, diversity of the seed bank and biotic and abiotic factors (e.g., canopy opening, herbaceous cover, and litter thickness), differ between bamboo dominated (B) and non-dominated (NB) areas. The study was conducted in a fragment of Semideciduous Seasonal Forest surrounded by an agricultural landscape. Soil samples were taken at 20 points in each area at two time periods, to evaluate the seed bank. The results show that diversity and structural parameters of the seed bank differ between areas and time periods. There was higher abundance and richness of seedlings of herbaceous ruderal species in area B and a greater abundance of seedlings of arboreal species in area NB. Sampling points in the bamboo dominated area had greater canopy openings and greater cover by herbaceous species, facilitating the establishment of individuals belonging to the families Poaceae and Cyperaceae, which could have competitive advantages over other species of the regenerating community. Considering that bamboo can affect the seed bank, long-term studies are needed to understand successional dynamics and evaluate suitable management actions to conserve the diversity in remaining forests. (AU)

• Processo FAPESP: 12/24118-8 - O papel da restauração ecológica no resgate da diversidade florística e funcional e na melhoria da estrutura da paisagem regional da Mata Atlântica
• Beneficiário: Debora Cristina Rother
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/50718-5 - Restauração ecológica de florestas ciliares, de florestas nativas de produção econômica e de fragmentos florestais degradados (em APP e RL), com base na ecologia de restauração de ecossistemas de referência, visando testar cientificamente os preceitos do Novo Código Florestal Brasileiro
• Beneficiário: Ricardo Ribeiro Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático