Banca de DEFESA: VANESSA PULCHERIA PINHEIRO DA COSTA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : VANESSA PULCHERIA PINHEIRO DA COSTA
DATE: 21/08/2020
TIME: 08:15
LOCAL: Sala Virtual
TITLE:

VEGETATION COMPOSITION AND STRUCTURE IN AN ATLANTIC FOREST REMAINING IN RIO GRANDE DO NORTE

KEY WORDS:

Seasonal Forest; Conservation Unit; Phytosociology.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Conservação da Natureza
SUMMARY:

As a result of anthropic processes, the Atlantic Forest has only 12.4% of its original composition, thus, preservation actions based on floristic and phytosociological studies, become essential to diagnose floristic and structural patterns in forest fragments. The objective of the work was to diagnose the floristic and structural modifications of the shrub-tree communities in three sectors with different disturbance histories and under influences caused by the number of trails. The study was carried out in the Municipal Natural Park José Mulato, which is a remaining of Atlantic Forest with 82.5 ha with seasonal Semideciduous Forest type vegetation. The remaining was divided into three sectors and along the trails 25 sample units of 20 m x 20 m (400 m²) were allocated at random, totaling 10,000 m2. DAP≥5 was used as an inclusion criterion for the measurement of trees DAP≥5,0 cm. To describe the structure, the parameters of absolute density, absolute frequency, absolute dominance and importance value were calculated, in addition to comparing the diversity and equability indices and, analyzing the diametric structure. Analyzes of clusters and indicator species were performed. In total, 784 individuals belonging to 25 families and 53 species were inventoried, 37 of which were identified at the species level, three at the gender level, six at the family level and seven indeterminate. In sector A, 233 individuals distributed in 22 families and 37 species, sector B, 292 individuals distributed in 23 families and 41 species and, sector C, 259 individuals distributed in 19 families and 28 species. The analyzes showed a distinction in terms of composition and structure between sector A and C, and sector B as a transition area. Only sectors A and C showed indicator species. Sector C obtained greater equability and sector B had the highest Shannon index. There was a floristic and structural distinction between sectors, reflecting, at first, the anthropogenic influences in time and space. The sectors with the highest levels of disruption showed high resilience.

BANKING MEMBERS:
Presidente - 049.666.234-13 - ALAN CAUÊ DE HOLANDA - UFERSA
Interno - 1755074 - LEONARDO DE MELO VERSIEUX
Interna - 2326526 - TATIANE KELLY BARBOSA DE AZEVEDO CARNAVAL
Externo à Instituição - ALLYSON ROCHA ALVES - UFERSA