A5013255072- Ecology and Vegetation Dynamics Studies
- Forest ecology and management
- Fern and Epiphyte Biology
- Soil Management and Crop Yield
- Plant and animal studies
- Plant Diversity and Evolution
- Polymer-Based Agricultural Enhancements
- Coastal wetland ecosystem dynamics
- Wildlife-Road Interactions and Conservation
- Mediterranean and Iberian flora and fauna
- Plant tissue culture and regeneration
- Environmental and biological studies
- Agroforestry and silvopastoral systems
- Pharmacological Effects of Natural Compounds
- Tree Root and Stability Studies
- Agricultural and Food Sciences
- Natural Antidiabetic Agents Studies
- Plant Taxonomy and Phylogenetics
- Species Distribution and Climate Change
- Animal Ecology and Behavior Studies
- Forest Ecology and Biodiversity Studies
- Biological Activity of Diterpenoids and Biflavonoids
- Plant Pathogens and Fungal Diseases
- Soil erosion and sediment transport
- Lichen and fungal ecology
Universidade Federal Rural do Rio de Janeiro
2013-2024
Universidade do Estado do Rio de Janeiro
2016-2017
A restinga de Praia das Neves ocupa uma extensa área (ca. 67 km2) no extremo sul do Estado Espírito Santo (21°14′35.35″S e 40°56′48.68″W), limitada pelo Rio Itabapoana, na divisa com o Janeiro. O objetivo desse estudo foi identificar caracterizar as diferentes formações vegetais dessa sua flora associada, incluindo reconhecimento dos habitats relacionados ao lagarto ameaçado extinção Liolaemus lutzae Mertens, 1938. Excursões para caracterização da local foram realizadas em campanhas...
The aim of this work is to evaluate the antioxidant activity against radical species DPPH, reducing capacity Fe II ions, and inhibitory on tyrosinase enzyme T. triangulare. Hydromethanolic crude extract provided two fractions after liquid/liquid partition with chloroform. Folin-Ciocalteu method determined total phenolic content (CE) hydromethanolic fraction (Fraction 1), resulting in a concentration 0.5853 g/100 g for Fraction 1, 0.1400 CE. Taking into account results free scavenging was...
O objetivo do presente estudo foi avaliar o desempenho e selecionar funções densidade de probabilidade que descrevam a distribuição diamétrica da comunidade florestal das três principais espécies Floresta Ombrófila Densa no sul estado Rio Janeiro. Foram testadas as Normal, Log Beta, Gama, Sb Johnson Weibull. Os ajustes foram realizados com auxílio ferramenta Solver (MSExcel®), utiliza algoritmo linear gradiente reduzido para otimização dos parâmetros funções. Para seleção melhor modelo...
A composição e qualidade do banco de sementes são alguns dos fatores responsáveis pela estrutura florística ambientes florestais. O objetivo deste estudo foi avaliar o um fragmento Floresta Estacional Semidecidual, com influência das características topográficas da paisagem. Foram selecionadas duas pedoformas adjacentes relevo tipo convexa côncava, sendo essas divididas em minissítios (MS) I, II, III na pedoforma convexa, IV, V, VI côncava. amostrados 10 pontos cada MS, distribuídos...
Sapindaceae family presents notable richness of liana species in the Neotropics. Many them are potentially ornamental, but still unexplored. Two were selected to test efficiency thiamine hydrochloride plant propagation from stem cuttings. Thiamine has an unexplored potential for higher and better rooting cuttings it is a cheaper alternative traditional usage phytohormones. Results showed no difference between treatment control all root variables evaluated two studied. Seedling production...
Phytosociological studies are important for the knowledge of biodiversity patterns and help to elucidate distribution abundance species. We aimed quantify wood component in areas that had evident anthropic impacts presence exotic invasive species Ilha Grande, Rio de Janeiro State, Brazil. The shrubby-tree with Diameter at Breast Height - DBH ≥ 5cm was quantifed by means 16 circular plots 15m radius, which eight Artocarpus heterophyllus Lam. Were identifed 19 new occurrences Grande-RJ two...
The occurrence of Kallstroemia tribuloides (Mart.) Steud. (Zygophyllaceae) in southeastern Brazil is reported after 136 years. It has been registered recently disturbed areas Saquarema, Rio de Janeiro, Brazil. K. recognized as a species adapted to open and sunny environments, with preference for sandy soils, typical conditions drylands (e.g. Caatinga Biome) Restingas. attributes that may favor its distribution into the newly colonized environment bioinvasive potential should not be...
We report the occurrence of Kallstroemia tribuloides (Mart.) Steud. in Rio de Janeiro, Brazil after 136 years. is adapted to open, sunny environments with a preference for sandy soils, which are typical drylands (e.g., Caatinga biome) and Restingas. This species has attributes that may favor its expansion into newly environments, bioinvasive potential should not be overlooked. Thus, we strongly recommend further studies monitor spread K. on Brazilian southeast coast, can help control.
Epiphytes are strongly affected by the microclimate of forest canopy, therefore understanding how microclimatic changes related to functional characteristics taxa and patterns plant communities is essential. Thus, our objective was examine community vascular epiphytes along vertical gradient forests investigate whether pattern maintained in with distinct main families. The study carried out Atlantic Forest Ilha Grande, Brazil, we recorded 95 species. greatest richness abundance were found on...