Natural Regeneration in Urban Fragment of Atlantic Forest, Pernambuco, Brazil | Journal of Experimen

The aim of this study was to look at the phytosociological structure of natural regeneration, the ecological group, and the species dispersion syndrome in an urban fragment of the Atlantic Forest in Pernambuco, Brazil.

Sampling was done in a systematic manner.

Immaculate Catholic College Conceiço do Recife (FICR) in the municipality of Recife, PE, will begin classes in August 2019.

Methodology: Ten 5 m x 5 m plots were sampled in the survey, and all living individuals with a height of 1 m and a diameter of 1.30 m from the soil were sampled 15 cm. On the basis of phytosociological parameters and the distribution of individuals in height groups, the structure of natural regeneration was investigated. The Shannon diversity and Pielou equability indices were used to calculate species diversity.

We collected 236 individuals from 26 different species. Density and supremacy were measured to be 9,940 ind.ha-1 and 5.27 m2.ha-1, respectively. The Fabaceae, Myrtaceae, and Bignoniaceae families had the most plant diversity. Protium heptaphyllum, Eschweilera ovata, Casearia javitensis, Brosimum guianense, Handroanthus sp.1, Xylopia frutescens, Thyrsodium spruceanum, and Myrciaria ferruginea were the species that stood out when density, frequency, dominance, importance value, and natural regeneration have been considered well adapted, showing efficiency in the production.Since it is an invasive alien species, the Elaeis guineensis was also one of the most noticeable, and it was important to track and manage it. Shannon diversity and Pielou equability indices were 2.56 and 0.76 nats.ind.-1, respectively. The field was inhabited by the first secondary species with zoochoric dispersal syndrome. The number of people in each height class was allocated in the following order: C3 > C1 > C2.

Conclusion: The region is in the middle of the ecological succession cycle, with a mild diversity of species. The area must be monitored with the aim of controlling Elaeis guineensis and native species with low natural regeneration.

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