Communities
Mostrando 13-24 de 3330 artigos, teses e dissertações.
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13. Reproductive phenology of aquatic macrophytes in the Cerrado-Pantanal ecotone
ABSTRACT Studies of plant phenology have been performed predominantly with terrestrial species and rarely so with aquatic communities. Such plants are fundamental for the aquatic ecosystems, representing a valuable source of resources when they are scarce in terrestrial environments for the fauna. Studies of phenology help to understand the reproduction rhyt
Acta Bot. Bras.. Publicado em: 2021-03
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14. Macrophyte functional composition is stable across a strong environmental gradient of a Neotropical floodplain
ABSTRACT Ecological communities are compared by the similarity or distinctness of their species. Taking into account community composition at a determined site, one could expect a similar reasoning to explain differences in both taxonomic and functional composition due to environmental gradients. We aim to evaluate spatial variation in functional composition
Acta Bot. Bras.. Publicado em: 2021-03
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15. Maintenance of wetland plant communities: the role of the seed bank in regeneration of native plants
ABSTRACT Exotic grasses have been introduced into wetlands and can compete with native plants due to their high tolerance of flood and dry periods. Flooding can facilitate seed dispersal of exotic species and reduce the diversity of native species. We compared two grasslands to assess whether seed banks can maintain the diversity of native plants in wetlands
Acta Bot. Bras.. Publicado em: 2021-03
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16. Advances in the knowledge of the natural history of aquatic plants in the Neotropics
ABSTRACT Until the mid-XX century, little awareness on the ecological services or socio-environmental problems and benefits related to aquatic plants culminated in bottlenecks on their natural history, especially for the Neotropics. In this context, Acta Botanica Brasilica (ABB) organized this special issue to promote the advancement of knowledge on this eco
Acta Bot. Bras.. Publicado em: 2021-03
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17. FLORISTIC COMPOSITION AND DIVERSITY IN TERRA FIRME FOREST UNDER WATER STRESS IN THE AMAZON
ABSTRACT The studies on floristic composition are an aid in the understanding of the structure and dynamics of the plant communities, fundamental parameters for its management and conservation. Thus, the objective of this work was to evaluate the floristic composition, species richness, Shannon’s diversity and models of species abundance over a 10-year per
CERNE. Publicado em: 2020-12
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18. Critical imaging analysis of suspicious non-palpable breast lesions
ABSTRACT The studies on floristic composition are an aid in the understanding of the structure and dynamics of the plant communities, fundamental parameters for its management and conservation. Thus, the objective of this work was to evaluate the floristic composition, species richness, Shannon’s diversity and models of species abundance over a 10-year per
Rev. Assoc. Med. Bras.. Publicado em: 2020-12
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19. Assessment of quality attributes of tomato sauce supplemented with moringa root
Abstract This study was conducted to evaluate the quality and mineral contents of Moringa oleifera root-based tomato sauce. Results showed that roots of M. oleifera are highly enriched with essential nutrients including minerals, such as iron, sodium, magnesium, calcium, potassium and zinc and vitamins specifically vitamin C. Thus, it is useful as a nutritio
Food Sci. Technol. Publicado em: 2020-12
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20. COVID-19 Infection and Its Influence in Otorhinolaryngology-Head and Neck Surgery
Abstract Introduction The novel coronavirus disease 2019 pandemic has rapidly spread worldwide, challenging healthcare resources and communities to an unprecedent degree. Simultaneously, the amount of clinical and scientific information released has overwhelmed journal platforms. Objectives This review aims to summarize the available diagnostic tools and c
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-12
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21. Characterization of prenatal healthcare for implementation of congenital toxoplasmosis surveillance program: cross-sectional study
ABSTRACT BACKGROUND: Prenatal toxoplasmosis remains a neglected disease worldwide and few government programs focusing on its prevention are available. Success in these programs has been extensively reported in the literature, yet the strategies used for their implementation, as a model for such actions in different communities, have not been described. OB
Sao Paulo Med. J.. Publicado em: 2020-10
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22. Species representativeness of Fabaceae in restrictive soils explains the difference in structure of two types of Chaco vegetation
ABSTRACT The distributions of species of Fabaceae are strongly related to the soil. Their presence can alter restrictive conditions and favour the establishment of other species. However, it is still not known how the relationship between species of Fabaceae and edaphic factors interact in structuring woody Chaco vegetation. In this context, we aimed to test
Acta Bot. Bras.. Publicado em: 2020-09
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23. CITIZENS AND COLLECTIVE DELIBERATION IN SOCIAL SCIENCE
ABSTRACT It is argued that, in certain particular conditions related to the intellectual character of the deliberators and their cognitive diversity, small research teams that engage in deliberation in the analysis of data and involve citizens can better promote good epistemic results than those teams which do not involve citizens. In particular, it is argue
Manuscrito. Publicado em: 2020-09
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24. Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas
ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire together on the composition and structure of tree and shrub
Acta Bot. Bras.. Publicado em: 2020-09