Fitossociologia da regeneração natural de uma Floresta Ombrófila densa em Moreno, Pernambuco, Brasil

Oliveira, Lamartine Soares Bezerra de; Marangon, Luíz Carlos; Feliciano, Ana Lícia Patriota; Cardoso, Mércia de Oliveira; Lima, Aldení Silva de; Albuquerque, Morgana de Jesus Brito de

doi:10.5039/agraria.v8i1a2097

Cited by 8 publications

(8 citation statements)

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“…A maior frequência das espécies Thyrsodium spruceanum, Protium heptaphyllum e Eschweilera ovata se justifica pela ampla dispersão zoocórica, uma vez que seus frutos são muito apreciados pela fauna, principalmente por pássaros. Resultado semelhante foi registrado por Oliveira et al (2013), em que a espécie Protium heptaphyllum esteve presente em 93,33% das unidades amostrais.…”

Section: Resultsunclassified

Potencial regenerativo de espécies arbóreas em fragmento de Mata Atlântica, Pernambuco, Brasil

et al. 2017

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Objetivou-se caracterizar o estrato regenerante de um fragmento de Floresta Ombrófila Densa das Terras Baixas, mediante avaliações da riqueza, estrutura e diversidade. Para estimar os índices de regeneração natural por espécie para cada classe de tamanho de planta (RNC), visando à obtenção do índice de regeneração natural total (RNT), foram alocadas, 40 parcelas de 25 m² (5 m x 5 m). A análise foi realizada com indivíduos que apresentaram CAP < 15,0 cm e altura igual ou superior a 1,0 m. As classes de alturas foram pré-determinadas, em que: C1 = 1,0 m-2,0 m; C2 = 2,1 m-3,0 m; C3 = > 3,0 m. Foram amostrados 1.197 indivíduos distribuídos em 81 espécies, 31 famílias e 51 gêneros. A família Fabaceae obteve maior riqueza, seguida por Melastomataceae e Myrtaceae. A espécie Protium heptaphyllum destacou-se com o maior Valor de Importância (VI), apresentando 14,64% do total de VI. As espécies que apresentaram os maiores RNTs foram: Protium heptaphyllum (Aubl.) Marchand, Thyrsodium spruceanum Benth., Eschweilera ovata (Cambess.) Miers e Brosimum guianense (Aubl.) Huber. Em relação à classificação sucessional, houve predominância das espécies de início de sucessão, comprovando a condição jovem da floresta. Os resultados mostram que o fragmento estudado apresenta boa capacidade de regeneração possibilitando maior riqueza e diversidade de espécies do estrato arbóreo adulto à longo prazo.

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Section: Resultsunclassified

Potencial regenerativo de espécies arbóreas em fragmento de Mata Atlântica, Pernambuco, Brasil

et al. 2017

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“…ind. -1 were found in the papers of Lima et al, Aparício et al and Oliveira et al [33,34,35], respectively, considering the same inclusion criterion in regenerant classes. These generalizations, while showing little implication in conservation, confirm a slight idea of the similarity of the diversity of the woody component between the coastal Atlantic Forest and the innermost areas (i.e., when they move away from the coast towards the West).…”

Section: Fig 3 Sample Intensity Curve By Interpolation (-) and Extrapolation (--) Both With 95% Confidence Intervals (Shaded Areas) Arbormentioning

confidence: 69%

Diversity and Structure of Adult and Regenerating Arbor Component in Forest ‘Submontana’, Paraíba-Brazil

Santos

Medeiros²,

Santos

et al. 2018

JEAI

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The objective of this research was to study the diversity and similarity profiles of vegetal species from adult and regenerating arboreal component in 'submontana' forest area, evaluating the modulation of the effective numbers of vegetal species on the different strata. An area of 4400 m 2 was sampled in a remaining rainforest (Open Ombrophylous Forest), in which woody species of adult stratum and regenerating were measured. All woody individuals were considered among the adult strata with CFG ≥ 10 cm in circumference (circumference of the trunk at 30 cm from the ground). Regenerating components were measured in the same plot (CFG < 10 cm), to justify richness and diversity comparisons in the same scale of the area. The numbers of effective Hill diversity (qD) to Shannon entropy, Simpson and species Richness was estimated by rarefaction (P = .05). The effective plant species numbers (qD) were estimated at 71.00; 37.48 and 25.31 species in relation to adult stratum, and 69.0; 25.36 and 16.87 species for the regenerant. No significant differences were found for richness of species among the strata. On the other hand, when plant species abundances were intensified as more important in the diversity measures, it was proved that the tree component began to maintain greater diversity, by Shannon and Simpson's entropy. The pattern of proportionality in species abundance changed systematically as the community directed its development to the adult stratum. The hypothesis on floristic similarity was confirmed, indicating reasonable perspectives on the regeneration power of these forests, front of the great scenario of moderate local disturbances.

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“…Caesalpinia peltophoroides was present in 40% of the plots, resulting in the second highest value of Relative Dominance (Table 1). Oliveira et al (2013) evaluated the horizontal structure in a fragment of Atlantic Forest in the State of Pernambuco and also identified the species Eschweilera ovata as one of the species with the highest Importance Value. Pinto et al (2018) in Igarassu, Pernambuco, evaluated the structure of a secondary forest fragment in the São José Plant and found lower values of VI, indicating a late succession, corroborating with the good state of conservation of the fragment evaluated in the present study.…”

Section: Discussionmentioning

confidence: 99%

Structure and Spatial Pattern of Vegetation in a Fragment of Atlantic Forest

2019

Aust. J. Basic & Appl. Sci.

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The degradation of the Atlantic Forest is a reflection of the occupation and irrational exploitation of natural resources, which resulted in a drastic reduction of vegetation cover and fragmentation of these habitats. Thus, the objective of this study was to evaluate the species diversity, horizontal structure and spatial pattern of a fragment of Atlantic. Ten plots with dimensions of 10 m x 25 m (250 m²), were distributed in a completely random manner in the area. The data were obtained from the identification and measurement of the arboreal individuals with circumference at the breast height (Cbh) at 1.30 m of the soil > 15 cm. The total height was estimated by using a 6 m long ruler positioned near the individual to be measured. The horizontal structure was calculated based on the following phytosociological parameters: density, frequency, dominance, importance value and diversity indices (Shannon Index-H ' and Pielou Equability-J). The spatial distribution pattern of the species was analyzed for the ten of the highest absolute density observed in the phytosociological analysis of the fragment. For this, we used the MacGuinnes index. The diversity Shannon Index was 3.37 nats. ind.-1 and the Pielou equability index of 0.83. In general, the species presented an aggregate pattern of distribution in the area, with emphasis on the species Miconia prasina (Sw.) DC. and Myrcia splendens (Sw.) DC. and Byrsonima crassifolia that presented a random pattern, this information is necessary for future management and conservation actions in the region.

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Fitossociologia da regeneração natural de uma Floresta Ombrófila densa em Moreno, Pernambuco, Brasil

Cited by 8 publications

References 20 publications

Potencial regenerativo de espécies arbóreas em fragmento de Mata Atlântica, Pernambuco, Brasil

Potencial regenerativo de espécies arbóreas em fragmento de Mata Atlântica, Pernambuco, Brasil

Diversity and Structure of Adult and Regenerating Arbor Component in Forest ‘Submontana’, Paraíba-Brazil

Structure and Spatial Pattern of Vegetation in a Fragment of Atlantic Forest

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