Composição florística e estrutura do componente arbóreo de uma vegetação secundária no entorno do Parque Nacional do Caparaó

• Ano de defesa: 2025
• Autor(a) principal: Evaristo, Maria América Tavares
• Orientador(a): dias, Henrique Machado
• Banca de defesa: Karla Maria Pedra de Abreu , Duarte, Victor Braga Rodrigues
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; Mestrado em Ciências Florestais
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciências Florestais
• Departamento: Centro de Ciências Agrárias e Engenharias
• País: BR
• Palavras-chave em Português: Lacunas florísticas; Conservação da flora; Zona de amortecimento
• Área do conhecimento CNPq: Recursos Florestais e Engenharia Florestal
• Link de acesso: http://repositorio.ufes.br/handle/10/20574

Several locations in the Atlantic Forest biome remain poorly studied regarding their Foristic and structural aspects, which are fundamental for the conservation of the regional Mora. This study aimed to describe the floristic composition and analyze the phytosociological structure and phytogeographic aspects of secondary vegetation bordering Caparaó National Park (PNC), in the municipality of Divino de São Lourenço, Espírito Santo state. The study area is located in a small valley between the RPPN Cachoeira Alta and RPPN Águas do Caparaó. Reproductive material from various life forms such as trees, shrubs, herbs, lianas, and palms were collected at the edges of the vegetation and within the forest. For the phytosociological analysis, 10 transects (50 m x 2m) were allocated, totaling 0.1 ha of total area, and all living shrub-tree individuals with DBH ≥ 25 cm were sampled, The floristic similarity of the sampling units and the study area with neighboring regions was estimated using the Sorensen index, and species dustering was performed using the UPGMA method. The floristic survey recorded 73 species distributed across 48 families and 47 genera, Considering the three lists consulted (EMA, Flora of Brazil 2020, and IUCN Red List), 67 species were recorded in some threat category (LC, VU, and EN), Only one species, Casearia espiritosantensis, was classified as endemic to Espírito Santo. The most common phytogeographic pattern of the Inventoried species was Neotropical, with 24 species (33%). The structural analysis identified 52 species and 76 genera, distributed across 27 families, with the species with the highest importance value being Euterpe edulis Mart. The diversity and evenness indices were high (Shannon H = 4.44; Pielou J = 0.87). Similarity values between sampling units were high, and analysis of nearby areas indicated greater foristic similarity with the Santa Marta area of Caparaó National Park. The flora of the studied area reflects patterns of regenerating montane Atlantic Forest, with a predominance of zoochoric dispersal and good structural diversity Spatial heterogeneity and environmental factors among the areas contributed to the low similarity between floristic groups Altitude, phytophysiognomy, and land use history may have influenced species composition, which ultimately influence species distribution patterns, Floristic and structural studies in the Caparaó region are essential for filling gaps in knowledge of the local flora and supporting conservation strategies. In this context, the Importance of RPPNs in conserving the flora in the buffer zones of the PNC is emphasized, reinforcing their relevance as complementary Instruments to public protected areas and essential for maintaining the biodiversity and ecosystem services of the Atlantic Forest.