Consulta: creatorFacets:"Menezes,Luis Fernando Tavares de"
Registros recuperados: 12
Data/hora: 11/06/2024 12:33:24

Microclimate and development of 'Conilon' coffee intercropped with rubber trees
Provedor de dados: 86
Autores: Partelli,Fábio Luiz; Araújo,André Vasconcellos; Vieira,Henrique Duarte; Dias,Jairo Rafael Machado; Menezes,Luis Fernando Tavares de; Ramalho,José Cochicho.
The objective of this work was to evaluate the influence of intercropping 'Conilon' coffee (Coffea canephora) with rubber trees on coffee tree microclimate, nutrition, growth, and yield. Rubber trees were planted in two double rows 33 m apart, with 4x2.3 m spacing between plants. Treatments consisted of the distances from the coffee plants to the rubber trees: 3, 6, 9, 12, and 15 m. Measurements of atmospheric variables (temperature, irradiance, and relative humidity), leaf nutrient concentration, internode length of plagiotropic and orthotropic branches, individual leaf area, chlorophyll content, and yield were performed. Intercropping promotes changes in the microclimatic conditions of coffee plants close to rubber trees, with reduction of temperature...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea canéfora; Hevea brasiliensis; Irradiance; Monoculture; Shading.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014001100872

Leaf damage in a mangrove swamp at Sepetiba Bay, Rio de Janeiro, Brazil
Provedor de dados: 88
Autores: Menezes,Luis Fernando Tavares de; Peixoto,Ariane Luna.
Leaf damage to Rhizophora mangle L., Avicennia schaueriana Stapf. &amp;amp; Leechman, and Laguncularia racemosa L. was studied in a two hectare mangrove swamp site in Sepetiba Bay. Seventeen arthropod morphospecies were identified as being responsible for the damage, and their species diversity was highest on A. schaueriana, followed by R. mangle and L. racemosa. Damage in terms of relative area was greatest in L. racemosa. Almost 9% of mangrove canopy leaf area demonstrated some damage. Loss of leaf area to herbivory was 12.1%, 8.3% and 6.2% in L. racemosa, A. schaueriana and R. mangle respectively. L. racemosa and A. schaueriana showed high percentages of leaf-margin damage in terms of the total damaged leaf area (82.2% and 56.3% respectively), while the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avicennia schaueriana; Herbivory; Laguncularia racemosa; Mangrove; Rhizophora mangle.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000400010

Regeneração e riqueza da formação arbustiva de Palmae em uma cronoseqüência pós-fogo na Restinga da Marambaia, Rio de Janeiro, RJ, Brasil
Provedor de dados: 39
Autores: Menezes,Luis Fernando Tavares de; Araujo,Dorothy Sue Dunn de.
A estrutura e a riqueza da formação arbustiva de Palmae foram analisadas em três sítios numa cronoseqüência de regeneração (3, 12 e 84 meses após a última queimada) na Restinga da Marambaia, registrando-se a presença de 29, 41 e 64 táxons, respectivamente. No sítio com maior tempo de regeneração, Allagoptera arenaria (Gomes) Kuntze representou 79% da dominância relativa (DoR), seguida das nanofanerófitas Inga maritima Benth. e Manilkara subsericea (Mart.) Dubard. Na área queimada há 12 meses, A. arenaria representou 88% da DoR, seguida de Inga maritima, Setaria setosa (Sw.) P. Beauv. e Paspalum arenarium Schrad. No sítio com três meses de regeneração, a DoR de A. arenaria foi de 82%, acompanhada de Clitoria sp., Inga maritima e Portulaca mucronata Link....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sucessão secundária; Rebrota; Fogo; Allagoptera arenaria; Restinga.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000400007

Floristic and phytogeographic pattern of native field in southeastern Brazil
Provedor de dados: 39
Autores: Ferreira,Vanuza Borges Ribeiro; Nascimento,Marcelo Trindade; Menezes,Luis Fernando Tavares de.
The waterlogging of soils creates selective environments for plant species. The frequency and duration of flooding influence the responses to ecological processes, determining the structure and floristic composition of vegetation formations. We investigated the relationship between floristic composition and environmental heterogeneity of native field, one physiognomic type found interspersed with semideciduous forest in the plains in the northern part of the state of Espírito Santo, Brazil, which is characterized by varying degrees of waterlogging. Our results indicate that the differentiation of physiognomic types of native field is related to the frequency and duration of waterlogging to which each is subjected, resulting in a somewhat shared flora,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Groundwater depth; Muçununga; Vale Nature Reserve; Soil.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000300020

Disentangling plant establishment in sandy coastal systems: biotic and abiotic factors that determine Allagoptera arenaria (Arecaceae) germination
Provedor de dados: 39
Autores: Menezes,Luis Fernando Tavares de; Pugnaire,Francisco I.; Matallana,Gloria; Nettesheim,Felipe Cito; Carvalho,Daniel Costa de; Mattos,Eduardo Arcoverde de.
ABSTRACT Germination rate and establishment success of plants in harsh environments depend on the ability of seeds to withstand unfavorable environmental conditions and avoid predators. Brazilian coastal plains, known as restinga, are subject to environmental factors that seriously limit plant establishment and survival (e.g. salinity, desiccation, oligotrophy, flooding, high temperature and radiation levels). We tested, both in field and laboratory experiments, conditions for germination and establishment of Allagoptera arenaria, a palm tree often found in restinga ecosystems of southeastern Brazil, and which have a principal role in plant community dynamics. Our results showed that the absence of mesocarp, high radiation exposure, and temperature were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arecaceae; Facilitation; Resting; Secondary dispersion; Seedling.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100012

Influence of environmental variation on Atlantic Forest tree-shrub-layer phytogeography in southeast Brazil
Provedor de dados: 39
Autores: Nettesheim,Felipe Cito; Menezes,Luis Fernando Tavares de; Carvalho,Daniel Costa de; Conde,Marilena Menezes Silva; Araujo,Dorothy Sue Dunn de.
This work assessed data from 32 forest sites in Rio de Janeiro and São Paulo, Brazil, using multivariate analysis to answer the question: Are there floristic patterns of the Atlantic Forest tree-shrub layer related to the Serra do Mar and the width of coastal plains in the states of Rio de Janeiro and São Paulo? Three multivariate analyses were performed to investigate the relationship between the tree-shrub flora and environmental variation in these 32 study areas. Our analyses demonstrated the influence of geo-climatic variation on floristic differentiation of tree and shrub species in Atlantic Forest regions generating groups of areas based on similar biotic and abiotic characteristics. These groups support the existence of floristic patterns within the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic rain forest; Floristic composition; Multivariate analyses; Phytogeography.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000200007

Estrutura comunitária e amplitude ecológica do componente lenhoso de uma floresta de restinga mal drenada no sudeste do Brasil
Provedor de dados: 39
Autores: Menezes,Luis Fernando Tavares de; Araujo,Dorothy Sue Dunn de; Nettesheim,Felipe Cito.
Analisamos a estrutura de uma floresta mal drenada na Restinga da Marambaia, RJ, e a amplitude ecológica das espécies quanto à tolerância à inundação do solo. Foram amostrados em 50 parcelas contíguas de 10 X 10m (0,5 ha), indivíduos com diâmetro do caule a altura do peito (DAP) &gt;2,5 cm. Registramos 1.223 indivíduos vivos (distribuídos em 24 famílias, 43 gêneros e 57 espécies). O índice de diversidade de Shannon (H') foi de 2,87 e a equabilidade (J') foi de 0,68. A densidade total foi de 2.446 ind. ha-1 e a área basal de 25,14 m². ha-1. As famílias mais ricas em espécies foram Myrtaceae (13), Leguminosae (5), Annonaceae, Euphorbiaceae, Myrsinaceae e Sapindaceae (4). Dez espécies apresentaram valor de importância (VI) acima de nove, correspondendo o...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversidade; Fitossociologia; Floresta de restinga; Formações vegetais; Similaridade.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000300025

Subtribo Myrciinae O. Berg (Myrtaceae) na Restinga da Marambaia, RJ, Brasil
Provedor de dados: 39
Autores: Souza,Marcelo da Costa; Morim,Marli Pires; Conde,Marilena de Menezes Silva; Menezes,Luis Fernando Tavares de.
A família Myrtaceae é uma das famílias com maior riqueza de espécies nas Restingas. O principal objetivo deste trabalho foi o levantamento da subtribo Myrciinae (Myrtaceae) nas diferentes formações vegetais da Restinga da Marambaia, no Estado do Rio de Janeiro (43º32' e 44º01'W; 23º01' e 23º06'S). Foram registradas as ocorrências dos seguintes táxons: Calyptranthes brasiliensis Spreng., Gomidesia fenzliana O. Berg, G. martiana O. Berg, Marlierea tomentosa Cambess., Myrcia acuminatissima O. Berg, M. lundiana Kiaersk., M. multiflora (Lam.) DC., M. recurvata O. Berg e M. richardiana (O. Berg) Kiaersk. Dois novos sinônimos são propostos para esta última espécie: Aulomyrcia lúcida O.Berg e Myrcia grandiglandulosa Kiaersk. Apresenta-se uma chave de identificação...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myrciinae; Myrtaceae; Florística; Taxonomia; Restinga da Marambaia.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062007000100006

The pattern of high plant diversity of Neotropical inselbergs: highlighting endemic, threatened and unique species
Provedor de dados: 39
Autores: Pinto-Junior,Herval Vieira; Villa,Pedro Manuel; Pereira,Miriam Cristina Alvarez; Menezes,Luis Fernando Tavares de.
ABSTRACT Understanding how multiple drivers shape plant community diversity across environmental gradients is one of the most important issues in plant ecology and biodiversity conservation. We aimed to analyse plant community structure and diversity in four inselbergs in Espírito Santo State, Brazil. We evaluated species diversity, floristic composition and similarity, phytosociological structure, occurrence, and conservation status of rupicolous flora in the inselberg communities. We used field expeditions and plant inventory data from 370 sampling units. We estimated floristic similarity and compared diversity indexes among inselbergs. We observed marked differences in community structure and diversity among inselbergs, where the southern region had the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha diversity; Atlantic Forest; Biodiversity conservation; Floristic composition; Latitudinal gradient; Phytosociological structure; Rock outcrop.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400645

Structure and floristic pattern of a coastal dunes in southeastern Brazil
Provedor de dados: 39
Autores: Giaretta,Augusto; Menezes,Luis Fernando Tavares de; Pereira,Oberdan José.
The Brazilian shrublands area (restinga) is composed of marine coast vegetation on Quaternary sandy plains, where the species composition can vary depending on the surrounding ecosystems. The aims of this study were to describe the structure and floristic composition of a restinga near the community of Itaúnas, in the northern part of the state of Espírito Santo, to identify any relationships between this restinga and surrounding plant formations, and to determine which are the species that occur preferentially in the coastal forests of Espírito Santo. We sampled woody plants with a diameter at breast height &gt; 2.5 cm, excluding lianas, in 50 plots of 100 m². We selected studies of coastal forests in the states of Espírito Santo and Bahia to prepare a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytosociology; Phytogeography; Pleistocene restinga; Espírito Santo; Itaúnas.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100011

Estrutura de duas formações vegetais do cordão externo da restinga de Marambaia, RJ
Provedor de dados: 39
Autores: Menezes,Luis Fernando Tavares de; Araujo,Dorothy Sue Dunn de.
Foram caracterizadas duas formações vegetais, psamófila-reptante e arbustiva de Palmae, no cordão arenoso externo da restinga de Marambaia (RJ) com base na posição topográfica, na fisionomia e na estrutura, utilizando-se o método de parcelas. Embora as duas formações sejam visualmente distintas, há uma zona de transição entre elas. Das 23 espécies amostradas na formação psamófila-reptante, Ipomoea pes-caprae, Ipomoea imperati, Allagoptera arenaria, Sporobolus virginicus, Remirea marítima e Panicum racemosum despontaram com maiores valores de importância (VI). A formação halófila dominada por Blutaparon portulacoides, típica de outras restingas no litoral brasileiro, não foi identificada devido ao intenso dinamismo da faixa entre o mar e a primeira linha de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Formações vegetais; Fitossociologia; Marambaia; Restinga.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061999000200009

Tree and shrub species of the Atlantic Forest on the slopes of Marambaia Island, Rio de Janeiro, Brazil
Provedor de dados: 49
Autores: Nettesheim,Felipe Cito; Menezes,Luis Fernando Tavares de; Carvalho,Daniel Costa de; Conde,Marilena Menezes Silva; Somner,Genise Vieira; Rodrigues,Guilherme de Assis; Araujo,Dorothy Sue Dunn de.
This study describes the tree and shrub component of the Atlantic Forest on the slopes of Marambaia Island, RJ. It further evaluates which species are found at threatened species lists and the similarity that the studied forest component has with other nearby locations with similar vegetation. Data gathering relied on the joint effort of arbitrary walks and sampling units known as Transect. The same sampling criterion was applied at both approaches (DBH greater than or equal to 5 cm). A similarity analysis, followed by a Cluster analysis, was used to compare the studied vegetation component. Similarity calculations were based in the Bray-Curtis coefficient. We detected a total of 235 species. These are divided in 134 genera and 52 families. The richest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dense ombrophilous forest; Floristic; Species richness; Similarity; Phytogeography.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300021