Plant Strata
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Efeitos de atributos ambientais na biodiversidade de formigas sob diferentes usos do solo
Resumo O objetivo foi avaliar a influência de variáveis ambientais sobre a fauna de formigas em um fragmento de floresta nativa e em áreas cultivadas. Os dados foram coletados no município de Seropédica - RJ, nas estações chuvosa e seca, em um cultivo de bananas (Musa pariadisiaca L.), uma agrofloresta, um cafezal (Coffea conephora Pierre) sombreado c
Ciênc. Florest.. Publicado em: 30/09/2019
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2. Estructura, composición florística y almacenamiento de carbono en bosques nativos del páramo de Anaime, Tolima, Colombia
Abstract Páramos have a high environmental importance due to their high plant and animal endemism, water regulation and carbon storage. In this work, the structure and composition of the tree vegetation were characterized as well as carbon storage in aboveground biomass and the potential reduction of emissions by deforestation were estimated prioritizing th
Ciênc. Florest.. Publicado em: 30/05/2019
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3. Management priorities for exotic plants in an urban Atlantic Forest reserve
ABSTRACT Biological diversity is directly affected by alien species, even though the diagnosed impacts vary with scale. Early identification of the invasion of natural patches is essential for effective conservation actions. We aimed to determine the exotic plant species present inside Fontes do Ipiranga State Park (PEFI), an urban protected area located in
Acta Bot. Bras.. Publicado em: 30/07/2018
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4. Epiphytic ferns in swamp forest remnants of the coastal plain of southern Brazil: latitudinal effects on the plant community
ABSTRACT Community structure and spatial distribution of epiphytic ferns in swamp forest remnants along the coastal plain of the state of Rio Grande do Sul were analyzed. A total of 440 trees were sampled in fifty-seven 10 x 10 m plots. Each phorophyte was divided into five ecological zones (strata), where all species of epiphytic ferns were recorded. A tota
Acta Bot. Bras.. Publicado em: 2016-12
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5. Collection of reference of silicophytoliths the flora of the Southwest ParanÃ: subsidies for studies paleoenvironmental / ColeÃÃo de referÃncia de silicofitÃlitos da flora do Sudoeste do ParanÃ: subsÃdios para estudos paleoambientais
Phytoliths bodies are of amorphous silica (SiO2.nH20) produced during the vegetative cycle and plant death after the production can be incorporated into the soil/sediment, and may remain there for extended periods of time. For an analysis consistent fitolÃtica is necessary to compare the sets of phytoliths found in soil and the collections of references phy
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2012
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6. Frequencies and intensities of defoliation in Aruana Guineagrass swards: accumulation and morphological composition of forage
The objective of this study was to assess the accumulation and morphological composition of forage in Aruana Guineagrass (Panicum maximum cv. Aruana) swards subjected to intermittent stocking with sheep. Experimental treatments when grazing was introduced included low (95%) and high (98%) incident light interception and low (10 cm)- and high (15 cm)-residue
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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7. Efeitos da queima na dinâmica da biomassa aérea de um campo nativo no Pantanal.
O objetivo deste trabalho foi avaliar os efeitos da queima na dinâmica da biomassa aérea do estrato herbáceo de um campo nativo do Pantanal com predominância de Andropogon bicornis. A área de estudo foi submetida aos tratamentos sem queima e com queima, ambos sem pastejo. Os dados de biomassa aérea e cobertura do solo foram analisados nos onze meses su
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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8. Impact and regeneration mechanism after invasion by Pteridium arachnoideum (Kaulf.) Maxon (Dennstaedtiaceae) in savanna woodland areas, southwestern São Paulo State / Impacto da invasão e mecanismos de regeneração natural do cerradão em áreas ocupadas por Pteridium arachnoideum (kaulf.) Maxon (Dennstaedtiaceae) no sudoeste do Estado de São Paulo
The genus Pteridium comprises bracken species recognized by large fronds and a rhizome system that allows their fast expansion. Bracken presents an elevated biomass production throughout the year, that increases fire occurrence and release chemical compounds that are considered allelopathic. Nowadays, species of the genus Pteridium are well known as problem-
Publicado em: 2010
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9. Avaliação do efeito de borda sobre a vegetação do cerrado stricto sensu inserido em matriz de pastagem / Edge effects on plant community of cerrado sensu stricto inserted into a matrix of pasture
From the Brazilian biomes, the Cerrado has been the most widely and rapidly converted to agribusiness in recent years. The expansion of agricultural frontier over the Cerrado domain resulted in thousands of small fragments embedded in matrices of low similarity, causing a series of negative impacts on the natural ecosystem. Habitat fragmentation is considere
Publicado em: 2010
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10. Padrões florísticos e estruturais das Florestas Estacionais Semideciduais do Triângulo Mineiro, MG / Floristic and structural patterns of semideciduous seasonal forests of Triângulo Mineiro, MG
The semideciduous seasonal forests (SSF) of southeastern Brazil have a high floristic diversity, accompanied by a high beta diversity, even between nearby fragments. However, nowdays these forests have been represented by a large number of small fragments, a landscape pattern typical for this region. In addition to the processes related to fragmentation, the
Publicado em: 2010
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11. Análise da planta genérica de valores por meio de estrato de renda no município de São Carlos
The tax planning is necessary for there to be a rational application of resources and improvements in basic infrastructure for the municipality. Therefore, the assessment and questioning of the results indicated in the Generic Plant Values can provide information to the legitimacy of taxation more fair and accessible. This study evaluated the consistency of
Publicado em: 2009
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12. Bee pollen of Alagoas State : physico-chemical composition, botanical origin and antioxidant activity. / Pólen apícola do estado de Alagoas : composição físico-química, origem botânica e atividade antioxidante.
Beekeeping is an activity known worldwide. In Brazil, it has found favorable conditions for its establishment. In the State of Alagoas, where it is still a practicing of beekeeping craft, require official data on the quality of their products to become more professional. Among the bee products, bee pollen resulting from the agglutination of flower pollen and
Publicado em: 2009