Dispersion Of Seeds
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. Hyptis fruticosa Salzm. ex Benth. (Lamiaceae): caracterização botânica, química, avaliações ecofisiológicas e atividades farmacológicas. / Hyptis fruticosa Salzm. ex Benth. (Lamiaceae): characterization botany, chemistry, ecophysiological assessments and pharmacological activities.
Hyptis fruticosa Salzm. ex Benth. (Alecrim do campo) is an aromatic plant widely used in folk medicine due to its therapeutic properties. Therefore the aim of this work was to undertake botanical, chemical, ecophysiological, and pharmacological studies. The botanical investigations observed and analyzed information about morphological, physiological, and env
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/09/2010
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14. Frugivoria por Tapirus terrestris em três regiões do Pantanal, Brasil
Tapirus terrestris (Linnaeus 1758) is the largest terrestrial Neotropical mammal. Its diet consists of leaves, fruits and buds, and it is able to ingest seeds without damaging them; enhancing, in this way, seed dispersion. The aim of this study was to determine the tapirs diet, evaluate its contribution for seed dispersion and the differences in the composit
Publicado em: 2009
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15. Aspectos da introdução das espécies exóticas: o capim-gordura e a braquiária no Parque Nacional de Brasília
Invasive alien species are the major biological threats to the environment, with huge losses to the economy, to the biodiversity and natural ecosystems, an also provides risks to human health. They are considered the second leading cause of biodiversity loss. Currently underway is acceleration in the process of biological invasions and National Park of Brasi
Publicado em: 2009
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16. Frugivoria por aves e fenologia em Miconia albicans e Miconia ligustroides (Melastomataceae), em fragmento de cerrado na região de São Carlos, SP, Brasil
The present study had as objective to characterize the avian guild that consumes Miconia albicans and Miconia ligustroides fruits and also to describe the fenology of these plants. The study was carried out in a 124.68 ha fragment of cerrado vegetation, located in the Universidade Federal de São Carlos, campus São Carlos (2158 S, 47 52 W), São Paulo state
Publicado em: 2009
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17. DistribuiÃÃo e diversidade de leguminosae em Ãreas de Caatinga no MunicÃpio de Mirandiba â PE / Distribution and leguminosae in Caatinga areas in the municipal district of Mirandiba - PE
The Family Leguminosae is the most representative of the caatinga, comprehend about a third of the wealth of classified species. Due to the importance of Leguminosae in the biome, a floristic inventory was accomplished in the municipal district of Mirandiba-PE. From this list of species we took place the taxonomic treatment and an analysis of similarity of t
Publicado em: 2008
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18. Estudo do potencial de regeneração natural : uma análise da chuva de sementes e do estrato regenerante da vegetação ciliar na bacia hidrográfica do rio Taperoá, semiárido paraibano, Brasil
Objetivou-se estudar a regeneração natural em uma área ciliar de Caatinga na bacia do rio Taperoá, semi-árido paraibano. A pesquisa foi realizada no período de janeiro/2005 a abril/2007 e abrangeu a área ribeirinha do riacho do Cazuzinha (72613S e 365430W; 564-579 m de altitude). Nesse sentido, o trabalho compreendeu as seguintes etapas: 1) caracteriz
Publicado em: 2008
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19. Germination of Solanum lycocarpum St. Hil seeds: mechanism and regulation / GerminaÃÃo de sementes de lobeira (Solanum lycocarpum St. Hil): Mecanismo e regulaÃÃo
The aims of this study were i) to determine the method to collect fruits at field condition, ii) to define the best germination condition, iii) to characterize morphologically the fruits and morpho-anatomically the seeds, iv) to study the germination mechanism of the seeds, v) to study the control of this process by ABA and vi) to compare the mechanism and r
Publicado em: 2007
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20. Biologia reprodutiva e germinação de sementes em Adenostemma brasilianum (Pers.) Cass. (Asteraceae) / Reproductive biology and seed germination of Adenostemma brasilianum. (Pers.) Cass. (Asteraceae)
Specific studies on the reproductive biology and seed germination of Adenostemma brasilianum are inexistent. Aiming to fill this gap, the objective of this study was to investigate its life history (reproductive phenology and fruit dispersion process), reproductive biology, including tests on the efficiency of two types of materials in isolating the heads fr
Publicado em: 2007
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21. DETERMINAÇÃO DE RESÍDUOS DE AGROTÓXICOS ORGANOCLORADOS EM LARANJA POR DISPERSÃO DE MATRIZ EM FASE SÓLIDA (MSPD) DISSERTAÇÃO DE MESTRADO ECOLOGIA E PRODUÇÃO SUSTENTÁVEL
This work shows the results achieved for the evaluation of organochlorine pesticides residue presence in oranges consumed in Goiânia. The method employed was based on the Matrix Solid Phase Dispersion extraction, MSPD, and analyzed by high resolution gas chromatography, GC. The studied pesticides were hexachlorobenzene, atrazine, heptachlor and its epoxide,
Publicado em: 2007
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22. Fenologia e chuva de sementes em Floresta Estacional Semidecidual no município de Viçosa, Minas Gerais, Brasil. / Phenology and seed rain in Semidecidual Seasonal Forest in Viçosa, Minas Gerais, Brazil
The present study was divided in two chapters. On the first it was aimed to study the phenology of 20 arboreal species and to answer the following questions: (1) Which is the seasonality degree in the production of flowers, fruits, falling and leaf shooting? (2) Are there any flowering and fructification synchrony intra and interespecific? (3) What is the in
Publicado em: 2007
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23. Morphological-reproductive characterization of jureminha (Desmanthus virgatus L. (Willd) accessions natives of Sergipe. Sergipe, São Cristóvão, SE, 2007. / CARACTERIZAÇÃO MORFOLÓGICOREPRODUTIVA DE ACESSOS DE JUREMINHA (Desmanthus virgatus (L.) Willd.) NATIVA DE SERGIPE
Among the most representative families of the world flora, the Legumonosae (Fabaceae) is one of most expressive her the capacity in fixing nitrogen in the soil and its releasing for the agroecosystems, presence in many agricultural systems, aggressive characteristic of seed dispersion, and by the considerable forage potential. The present work aimed to chara
Publicado em: 2007
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24. Aspectos fisiolÃgicos da germinaÃÃo de sementes de sucupira-preta (Bowdichia virgilioides Kunth) / Physiological aspects of black sucupira seed germination (Bowdichia virgilioides Kunth.)
Bowdichia virgilioides is tree specie with broad dispersion in Brazil, being highly used in refloresting prgrams and recovery of the degraded areas. This specie is suffering a reduction in number in its native habitat, due the desordered commercial exploration. Inaddition to this fact, the seedling formation could be limited based in the germination conditio
Publicado em: 2006