The development of studies on natural regeneration in fragments of the Atlantic Forest assists to evaluate the regenerative power of forests against natural and anthropic disturbances. So, the objective of the work was to analyze the structure of the regenerative component and ecological succession of arboreal species in an urban fragment of Atlantic Forest. The study was undertaken in Parque Estadual Dois Irmãos (PEDI), in Recife, Pernambuco, in which 10 subplots of 1 m x 25 m (25 m²) each was installed. As inclusion criterion, the regenerating individuals of arboreal species should have a height equal to or greater than one meter and circumference at the height of the chest (CAP 1.30 m) inferior to 15 cm. The individuals were classified as the ecological groups origin (native or exotic species) and were calculated via phytosociological parameters such as heights classes for regenerating individuals and diversity index. For data analysis Mata Nativa version 4.05 was used. The families that presented the highest number of species were: Myrtaceae and Fabaceae. It was observed that 15% of the species belong to the pioneer group, while 48% belonged to the initial secondary group, and 22% to the late secondary group. The distribution of individuals of the species Hirtella racemosa and Chamaecrista ensiformis in the different size and relative density classes allow us to affirm that these species act directly in the process of ecological succession. The fragment is in the initial secondary stage of succession.
Background: Despite the development of modern veterinary medicine, rural populations in developing countries continue to treat their animals with medicinal plants due to a combination of their low cost, easy availability, perceived efficacy and the absence of veterinary clinics. So, this study aimed to assess the consensus on the ethnobotanical knowledge from small-holders and to assess their preference either on medicinal plants or synthetic pharmaceuticals.Methods: Interviews were conducted between January and March 2015 with 30 people of both sexes, aged 24-96 years in Dom Hélder Câmara, the largest rural settlement arisen by land reform efforts with remaining Caatinga vegetation in the state of Alagoas, northeast Brazil. The following indices were calculated to help interpret the data: Smith's Salience Index, Informant Consensus Factor (ICF) and Fidelity Level (FL).Results: Fifty-four species of plants in 45 genera and 25 botanical families were reported as treatments for 33 veterinary diseases. The highest salience value was found for Aloe vera (0.361) and Guapira graciliflora (0.336). The highest ICF values were recorded for the categories Ecto and endoparasite (0.670) and Gastrointestinal (0.630). In 76.5% of cases only the plant was used and in 23.5% of the cases synthetic pharmaceuticals were also considered as a treatment option. The highest FL values were found for G. graciliflora (84.62%) and Citrus limon (75.00%).
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