Estrutura fitossociológica do componente arbóreo de um fragmento de Floresta Ombrófila Densa na mata sul de Pernambuco, nordeste do Brasil.

Costa, Roberto Felix; Ferreira, Rinaldo Luíz Caraciolo; Rodal, Maria Jesus Nogueira; Feliciano, Ana Lícia Patriota; Marangon, Luíz Carlos; Silva, Wegliane Campelo da

doi:10.5902/19805098455

Cited by 16 publications

(6 citation statements)

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“…As in the present study, other authors such as Araújo et al (2015), Colonetti et al (2009) and Costa Junior et al (2008) analyzing the phytosociological structure of fragments of Atlantic Forest also showed that a small number of species presented high density. According to Richards (1996), the dominance of a reduced number of species in the environment is a common occurrence in humid tropical forests.…”

Section: Discussionsupporting

confidence: 85%

“…The absolute dominance in the community was 11.75 m² ha -1 , being lower than that found by Costa Junior et al (2008), Araújo et al (2015) and Lima et al (2017) when analyzing the structure of Atlantic Forest fragments in the Brazilian Northeast, whose values were 22.13 m² ha -1 , 23.59 m² ha -1 and 19.63 m² ha -1 , respectively. This fact can be explained by the successional stage of the fragment of forest analyzed, the size of the area sampled, as well as the anthropic disturbances that preceded the incorporation of the fragment to the Conservation Unit Dois Irmãos State Park.…”

Section: Discussioncontrasting

confidence: 55%

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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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Section: Discussionsupporting

confidence: 85%

Section: Discussioncontrasting

confidence: 55%

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

2019

Aust. J. Basic & Appl. Sci.

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“…The other families (28) accounted for 21.15% of the total, evidencing the low relative abundance of individuals in these families. The Anacardiaceae family, which obtained the largest number of individuals in this study, was also the most outstanding in a study by Costa et al (2008) for the same typology. This higher representation may be related to the fact that this family has approximately 81 genera and 800 species, with occurrence in dry to humid environments, mainly in lowlands in tropical and subtropical regions around the world (Pell et al, 2011).…”

Section: Floristic Composition and Successional Classificationmentioning

confidence: 54%

Structure and Diversity In Ombrophilous Forest in the Zona da Mata of Pernambuco

et al. 2019

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The objective of this work was to evaluate the arboreal component of a Dense Ombrophilous Lowland Forest fragment through evaluations of richness, structure and diversity. For the sampling of this component, we implanted 40 sample units of 10 × 25 m. We measured all arboreal individuals who presented circumference at breast height ≥ 15 cm, 1.30 m from the ground level. The tree stratum presented 1324 individuals, 100 species, 64 genera and 38 families. The Fabaceae family had the highest wealth and Anacardiaceae was the most abundant. The Shannon index and Pielou equability were 3.60 nats.ind.-1 and 0.78, respectively, suggesting the existence of relevant ecological dominance in the community. The results of this work emphasize the ecological importance of this remnant for maintaining the local flora and fauna, also emphasizing the importance of preserving Atlantic Ombrophilous Forests, particularly in the Zona da Mata of Pernambuco.

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“…Número de indivíduos/ha Número de indivíduos/ha A espécie Plathymenia foliolosa (Figura 3E) demonstrou descontinuidade na distribuição diamétrica, em mais de uma classe e/ou, em classes sucessivas, podendo indicar que alguns locais sofreram alterações na sua estrutura pelo corte seletivo de árvores de menor porte, para a produção de energia, fato também verificado por Graz (2004) e Oliveira et al (2005), o que vem corroborar com as evidências de exploração madeireira no fragmento constada por Costa Júnior et al (2007Júnior et al ( , 2008.…”

Section: Resultsunclassified

Estrutura diamétrica de um fragmento de Floresta Atlântica em matriz de cana-de-açúcar, Catende, Pernambuco

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Silva

et al. 2009

Rev. bras. eng. agríc. ambient.

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RESUMOObjetivou-se, neste trabalho, analisar a estrutura diamétrica do componente arbóreo de um fragmento de Floresta Atlântica inserido em uma matriz de cana-de-açúcar, utilizando-se o quociente "q" de De Liocourt. O estudo foi realizado no fragmento denominado Mata das Caldeiras, no município de Catende, Pernambuco. Os indivíduos amostrados foram distribuídos em classes de diâmetro com amplitude de 5 cm, em que o centro da primeira classe tem o valor de 6,5 cm. Com o uso do quociente "q" de De Liocourt, aqui empregado, construíram-se as curvas de distribuição diamétrica, observadas e estimadas para a amostragem geral e para as espécies de maior Valor de Importância (VI). O fragmento Mata das Caldeiras apresentou déficit de árvores nas classes de diâmetro, geral e por espécies de maior VI, comparado a uma floresta balanceada. O quociente "q" de De Liocourt pode ser usado para avaliar estrutura diamétrica em fragmentos de Floresta Atlântica. Por meio da distribuição diamétrica e dos valores de "q" obtidos para o estágio de sucessão em que se encontram as áreas, pode-se inferir que o grau de perturbação nesses fragmentos ocorre de forma constante.Palavras-chave: distribuição diamétrica, quociente de De Liocourt, floresta ombrófila Diametric structure of a fragment of Atlantic Rain Forest in sugarcane plantation, ABSTRACTThis work aimed to analyze the diametric structure of arboreous component in an Atlantic Rain Forest fragment using De Liocourt quotient "q". The study was carried out at the Atlantic Rain Forest fragment, called Mata das Caldeiras, in Catende municipality, Pernambuco State, Brazil. The sampled individuals were distributed in class diameters with amplitude of 5 cm, with the first class having a value of 6.5 cm. Using the quotient "q" of De Liocourt the curves of diametric distribution, observed and estimated, were constructed, for the whole fragment and for species of higher Importance Value (VI). The fragment Mata das Caldeiras showed a deficit of trees in the diameter classes, generally and for species of greater VI, compared with a balanced forest. The De Liocourt quotient "q" may be used to evaluate diametric structure in fragments of Atlantic Forest. By the diametric distribution and obtained values of "q", for the period of succession found in the areas, it can be inferred that the degree of disturbance in these fragments occurs in a consistant manner.

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Estrutura fitossociológica do componente arbóreo de um fragmento de Floresta Ombrófila Densa na mata sul de Pernambuco, nordeste do Brasil.

Cited by 16 publications

References 6 publications

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

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

Structure and Diversity In Ombrophilous Forest in the Zona da Mata of Pernambuco

Estrutura diamétrica de um fragmento de Floresta Atlântica em matriz de cana-de-açúcar, Catende, Pernambuco

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