Dynamic Of Forest
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Prediction of diametric and dynamic structures in a semiarid forest (Caatinga) area submitted to Forest Management, Brazil
ABSTRACT Dynamics studies associated with prognosis can support planning actions for the conservation and sustainable use of forest resources. Therefore, the objective of this study was to evaluate the dynamics and predict the diameter structure using the Markov chain model for an area of caatinga forest submitted to different management practices. The study
Revista Ceres. Publicado em: 2022
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2. Mimosa scabrella Benth. as Facilitator of Forest Successional Advance in the South of Brazil
ABSTRACT Pioneer species have the potential to colonize disturbed environments, contributing to the establishment of other species and driving the dynamics and advancement of the structure of forest communities. The aim of this study was to assess the evolution of floristic-structural composition in the regenerating stratum of communities formed in the Mimos
Floresta Ambient.. Publicado em: 30/09/2019
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3. Expansão da vegetação arbustivo-arbórea em áreas abertas alto-montanas adjacentes a fragmentos florestais, no Planalto Sul Catarinense
Resumo O objetivo deste estudo foi conhecer os padrões demográficos da regeneração natural do componente arbustivo-arbóreo e determinar se esses são influenciados pelas variáveis ambientais, em três áreas abertas em regeneração natural (diâmetro na altura do peito < 5 cm), em contato com fragmentos florestais de Floresta Ombrófila Mista Alto-Mon
Ciênc. Florest.. Publicado em: 30/05/2019
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4. STATISTICAL MULTIVARIATE ANALYSIS APPLIED TO ENVIRONMENTAL CHARACTERIZATION OF SOIL IN SEMIARID REGION1
RESUMO O solo é um sistema dinâmico e complexo ao ser estudado, que demanda para fins de pesquisa um considerável número de amostras e análises. Com os métodos estatísticos multivariados podem-se criar condições mais favoráveis ao analisar as amostras, i.e. redução e simplificação estrutural dos dados. Este trabalho tem por objetivo empregar a
Rev. Caatinga. Publicado em: 09/05/2019
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5. Ancient and Current Distributions of Erythrina crista-galli L. (Fabaceae) in South America
ABSTRACT Erythrina crista-galli is a native tree from South America with an important role on pharmaceutical studies. The objective of this study was to model the ancient and current ecological niches distribution of E. crista-galli in South America, contributing to the discussion about species management and conservation. A reduction in the potential area o
Floresta Ambient.. Publicado em: 04/04/2019
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6. SPATIAL DYNAMICS OF SEMIDECIDUOUS SEASONAL FORESTS: CASE STUDY IN THE TURVO SUJO RIVER BASIN IN SOUTHEASTERN BRAZIL, BETWEEN THE YEARS OF 2003 AND 2016
RESUMO De acordo com a Agência Nacional das Águas (ANA), a escassez de água vem sendo um problema brasileiro desde 2012 e está diretamente relacionado com a conservação das bacias hidrográficas. É possível monitorar as mudanças da paisagem e conservação dessas bacias com imagens provenientes de sensores orbitais. O trabalho teve como objetivo ana
Rev. Árvore. Publicado em: 04/02/2019
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7. Floral Scent and Nectar Sugar Composition of Temnadenia odorifera (Apocynoideae, Apocynaceae)
Temnadenia odorifera is an endemic species from the Brazilian Atlantic Forest. This study was developed in order to identify the volatile compounds emitted by the living flowers and nectar, to evaluate the temporal pattern of scent emission, and the sugars composition of its nectar. Analyses of the flower scent by dynamic headspace in vivo, of nectar sugar c
J. Braz. Chem. Soc.. Publicado em: 2019-02
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8. Effects of deforestation on headwater stream fish assemblages in the Upper Xingu River Basin, Southeastern Amazonia
RESUMO A expansão da fronteira agrícola amazônica representa a mais ampla mudança na cobertura e uso da terra no mundo contemporâneo, e ameaça a integridade de ecossistemas de riachos que abrigam a maior diversidade de peixes de água doce do planeta. Nosso objetivo foi testar as hipóteses de que o desmatamento afeta a abundância, a riqueza e a estru
Neotrop. ichthyol.. Publicado em: 31/01/2019
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9. Modeling of stem form and volume through machine learning
Abstract Taper functions and volume equations are essential for estimation of the individual volume, which have consolidated theory. On the other hand, mathematical innovation is dynamic, and may improve the forestry modeling. The objective was analyzing the accuracy of machine learning (ML) techniques in relation to a volumetric model and a taper function f
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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10. Litter Dynamics in a Forest Dune at Restinga da Marambaia, RJ, Brazil
ABSTRACT Restingas are extremely degraded, tropical sandy ecosystems and are poorly studied in terms of nutrient cycling. The present study aimed to evaluate litter dynamics in a forest dune at Restinga da Marambaia, RJ. Litterfall was collected monthly using two parallel transects installed 200 m apart from each other with 15 litter traps (0.25 m2), over t
Floresta Ambient.. Publicado em: 29/03/2018
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11. Temporal changes in species composition, diversity, and woody vegetation structure of savannas in the Cerrado-Amazon transition zone
ABSTRACT Vegetation in the transition between tropical forest and savanna is hyperdynamic and there is evidence that in the absence of fire, forest advances over savanna. Between 2008 and 2013 we evaluated changes in species composition and diversity and in the structure of the woody vegetation of savanna physiognomies in the transition between the Cerrado a
Acta Bot. Bras.. Publicado em: 15/01/2018
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12. Heterogeneity of bird communities in a mosaic of habitats on a restinga ecosystem in southeast Brazil
ABSTRACT Restinga occurs as a narrow band of coastal habitats throughout the Atlantic Forest, although it presents considerable variation in vegetation structure, which likely contributes to heterogeneity in species inhabiting this endangered ecosystem. The goal of this study is to examine how variation in vegetation and abiotic conditions in the restinga ec
Zoologia (Curitiba). Publicado em: 03/10/2016