Composição e estrutura do componente arbóreo de remanescente de floresta estacional semidecidual aluvial no Pantanal Mato-Grossense, Brasil

Negrelle, Raquel Rejane Bonato

doi:10.1590/s0100-67622013000600001

Cited by 4 publications

(6 citation statements)

References 13 publications

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“…It was found that the shannon diversity index of the studied area is lower than that found in a semideciduous seasonal forest remnant, in the state of Mato Grosso (Negrelle, 2013), which corresponded to 2,67 nats. ha -1 .…”

Section: Resultscontrasting

confidence: 60%

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Characterization of Tree Community in a Forest Post Exploration Area, South of Tocantins State

Sousa¹,

Coelho²,

Santana³

et al. 2022

JER

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Considering the lack of data and studies in post-forestry areas, the objective of the study was to evaluate the floristics, phytosociology and the distribution in height and diameter classes of the tree species after forest management of the Wood Industry Rio Formoso located in the municipality of Dueré, State of Tocantins. Made from a forest inventory with systematic sampling, where 22 plots measuring 20 m by 50 m were installed, totaling 2.2 ha of sample area. All arboreal individuals with a circumference of 1.30 m from the ground ≥ 15 cm were sampled, botanically identified, and classified into ecological groups. Phytosociological parameters were analyzed, and volume, biomass and carbon stocks were determined from equations for the region. In the area were found 821 individuals distributed in 27 species and 18 botanical families; Shannon's density, dominance and diversity values are considered low for comparison purposes with other studies. The diametric structure showed an unbalanced "inverted J" pattern. The volume stock was 355,068 m³. ha -1 , the biomass was 67,867 ton. ha -1 ; and carbon was 33,934 ton. ha -1 .

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Section: Resultscontrasting

confidence: 60%

“…Analyzing the values of standard deviation (14.38 cm) and coefficient of variation (55.47%) of the variable diameter, it is observed how much the values vary around the mean. Studying the structure of a semideciduous seasonal forest remnant in Mato Grosso, Negrelle (2013) obtained an average diameter of 24.19 ± 16.60 cm.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Tree Community in a Forest Post Exploration Area, South of Tocantins State

Sousa¹,

Coelho²,

Santana³

et al. 2022

JER

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“…The Myrtaceae family has its participation justified by its broad longitudinal distribution spectrum (Negrelle, 2013). However, Gasper et al (2013) claim that this family is best represented in the rain forests than in the seasonal forests, tending to decline in richness in the Cerrado and According to Ribeiro and Lima (2009) the Fabaceae (Leguminosae) family is more diversified in seasonal environments, which can be explained from the Tertiary, when the dry forests dominated the major regions of the world, from where the association of legumes with nitrogen-fixing bacteria created efficient evolutionary mechanisms, providing greater plasticity for the occupation in poor environments in nutrients and regeneration.…”

Section: Discussionmentioning

confidence: 99%

Floristic, Diversity and Spatial Distribution of Tree Species in a Dry Forest in Southern Brazil

Freitas¹

2017

Appl Ecol Env Res

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Trabalhadores, 420, Vila Santa Cecília, Volta Redonda, RJ, 2 Janeiro -UFRRJ, Rod. BR-465, km 7,23851-970, Seropédica, RJ, Brasil (e-mail: l.mauro@terra.com.br) *Corresponding author e-mail: wkfreitas@gmail.com; tel: +55-24-2107-3434 (Received 2 nd Jul 2016; accepted 11 th Oct 2016) Abstract. This study was conducted in a fragment of deciduous seasonal forest (DSF), located between the municipalities of Piratuba and Ipira, Santa Catarina. The objective was to evaluate the floristic composition and the successional stage through the ecological groups, the Shannon diversity index (H') and the dispersal syndromes of species, also using the H' and the McGinnies index (IGA) to determine the pattern of spatial distribution of species. 14 transects were installed, each with 1,000 m 2 , considering all trees with Diameter at Breast Hight (DBH) ≤ 4.0 cm. In total, 2,125 individuals were sampled, belonging to 113 species and 34 families. Myrtaceae and Fabaceae were the families with the highest species richness, with 14.2% and 11.5%, respectively. Euphorbiaceae and Lauraceae added approximately 25% of the individuals. The most abundant species were Actiniostemon concolor (Spreng.) Müll. Arg (6.9%) and Luehea divaricata Mart. (6.7%). The ecological group of the pioneers totaled 40% of the individuals and 36.3% of the species. The zoochoric syndrome accounted for just over 60% of individuals and species. The H' was 3.92 nats. ind -1 and the Pielou evenness (J) was 0.82. The IGA revealed that only over 40% of the species and 60% of the individuals showed a clumped dispersion pattern. The community is on successional transition phase, from the initial to the intermediate stage. In this scenario, management measures adopted for the microscale could be implemented in order to preserve this important repository for diversity. The application of McGinnies index can be of great use in conservation and forest management, as its interpretation may contribute to the development of restoration methods of degraded areas, enrichment of forest remnants, germplasm conservation and other activities. Department of Environmental Sciences and the Postgraduate Program in Sustainable Development Practices -PPGPDS -Rural Federal University of Rio de

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“…A maior diversidade específica e riqueza de espécies registrados em FES Submontana, indicam a ocorrência de alta heterogeneidade florística, sendo considerados elevados e compatíveis com os valores obtidos nas Florestas Estacionais Semideciduais da região, que variam entre 2,67 A 3,53 nats ind -1 (Romagnolo e Souza, 2000;Pereira et al, 2007;Negrelle et al 2013).…”

Section: Discussõesunclassified

Estrutura da comunidade arbustivo-arbórea em Florestas Tropicais Subcaducifólias

Mello

2020

RSD

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Objetivou-se caracterizar a estrutura da comunidade arbustivo-arbórea em Florestas Estacionais Semidecíduas (FES) buscando investigar a riqueza e a similaridade de espécies entre as áreas. Avaliou-se três ambientes em uma Area de Preservação Permanete: FES Submontana; FES Aluvial e Área de Vegetação Secundária (AVS). Através do método de parcelas contíguas foram indentificados os individuos com CAP igual/superior a 10 cm/1,30m do solo. Para a ánalise dos dados, utilizou-se a ordenação NMDS baseada na matriz de dissimilaridade de Bray-Curtis, a análise de agrupamento (UPGMA), o diagrama de Venn, a diversidade alfa e os parâmetros fitossociológicos (Dr, DoR, FR, IVI, IVC). Registrou-se um total de 2.780 indivíduos. As áreas amostradas resultaram em três ambientes significativamente diferentes quanto a estrutura da comunidade (Pillai =1,25; df =4 e 294; p<0,001), onde FESS apresentou maior índice de diversidade e riqueza de espécies. A análise (UPGMA) revelou agrupamento entre FESA e AVS com coeficiente de 0,65. A maior diversidade específica e riqueza de espécies em FESS indicam alta heterogeneidade florística. A menor diversidade em FESA e AVS respectivamente, podem ser reflexos das características edafoclimáticas do local. A composição de espécies distintas justifica-se devido o processo de regeneração natural apresentar diversas trajetórias sucessionais, podendo ser influenciadas por múltiplos fatores. Ressalta-se a importância da preservação desses ambientes para a manutenção da riqueza florística da região, pois as mesmas resguardam valiosas informações florísticas, podendo representar um modelo para a revegetação de áreas sob condições semelhantes, bem como para a fundamentação de propostas de manejo e recuperação de áreas degradadas.

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Composição e estrutura do componente arbóreo de remanescente de floresta estacional semidecidual aluvial no Pantanal Mato-Grossense, Brasil

Abstract: TREE SPECIES COMPOSITION AND ESTRUCTURE OF A REMNANT OF A SEMIDECIDUAL SEASONAL ALLUVIAL FOREST REMNANT IN PANTANAL MATOGROSSENSE, BRAZIL

Cited by 4 publications

References 13 publications

Characterization of Tree Community in a Forest Post Exploration Area, South of Tocantins State

Characterization of Tree Community in a Forest Post Exploration Area, South of Tocantins State

Floristic, Diversity and Spatial Distribution of Tree Species in a Dry Forest in Southern Brazil

Estrutura da comunidade arbustivo-arbórea em Florestas Tropicais Subcaducifólias

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