Bioindicators
Mostrando 13-24 de 99 artigos, teses e dissertações.
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13. Assemblage of drosophilids (Diptera, Drosophilidae) inhabiting flooded and nonflooded areas in the extreme South of Brazil
ABSTRACT Several studies on the potential use of drosophilid assemblages as bioindicator systems have been carried out in the last years. Nevertheless, the successful application of these organisms in these systems requires adequate filling of several knowledge gaps. In this sense, little is known about drosophilid assemblages in wetlands and flooded areas.
Rev. Bras. entomol.. Publicado em: 2018-01
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14. Detection, purification and characterization of a lectin from freshwater green algae Spirogyra spp.
ABSTRACT Freshwater algae are rich sources of structurally biologically active metabolites, such as fatty acids, steroids, carotenoids and polysaccharides. Among these metabolites, lectins stand out. Lectins are proteins or glycoproteins of non-immune origin which bind to carbohydrates or glycoconjugates, without changing ligand structure. Many studies have
An. Acad. Bras. Ciênc.. Publicado em: 31/08/2017
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15. Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide
ABSTRACT Tricyclazole is currently one of the fungicides recommended for the treatment of diseases in irrigated rice. However, there is relatively little information on its cytotoxic and genotoxic potential. The objective of this study was to evaluate the cytotoxicity and genotoxicity of rice crop water after apllication of the tricyclazole fungicide through
An. Acad. Bras. Ciênc.. Publicado em: 02/05/2017
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16. Sugarcane trash levels in soil affects the fungi but not bacteria in a short-term field experiment
Abstract The sugarcane in Brazil is passing through a management transition that is leading to the abolition of pre-harvest burning. Without burning, large amounts of sugarcane trash is generated, and there is a discussion regarding the utilization of this biomass in the industry versus keeping it in the field to improve soil quality. To study the effects of
Braz. J. Microbiol.. Publicado em: 2016-06
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17. Morpho-histological characterization of immature of the bioindicator midge Chironomus sancticaroli Strixino and Strixino (Diptera, Chironomidae)
ABSTRACTChironomidae immature are used as bioindicators of sediment quality in aquatic ecosystems and ecotoxicological assays. Histological descriptions for this family are outdated and limited and there are no studies with Neotropical species. The aim of this study was to describe the tissue architecture of several organs of the larva of Chironomus sanctica
Rev. Bras. entomol.. Publicado em: 2015-09
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18. Galling insects are bioindicators of environmental quality in a Conservation Unit
Galls are well distributed across the World and among plant families. Their diversity can support the status of conservation of an area as an urban park, once inventories are presented. These inventories also help to understand the morphological patterns of the galls, based on their most common shape, color, host botanical families, inducers and galled organ
Acta Bot. Bras.. Publicado em: 2014-12
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19. Genotoxic effect of Phenanthrene on Chironomus sancticaroli (Diptera: Chironomidae)
Phenanthrene, a Polycyclic Aromatic Hydrocarbon, remains adsorbed to sedimentary particles in aquatic environments. It affects mainly benthic organisms, and is considered potentially genotoxic. In ecotoxicology, species of Chironomus Meigen, 1803 are widely known as bioindicators of the effects of chemicals on aquatic organisms. This study investigates the e
Zoologia (Curitiba). Publicado em: 2014-08
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20. Diversity and distribution of the bryophyte flora in montane forests in the Chapada Diamantina region of Brazil
Bryophytes constitute an important component of tropical rain forests, which provide microhabitats favorable for their establishment. Bryophytes are also quite responsive to changes in microclimate, which makes them good bioindicators. This study aimed to determine the diversity and distribution of bryophytes in upper and lower montane forests of the Chapada
Acta Bot. Bras.. Publicado em: 2013-09
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21. Influência do desenvolvimento florestal sobre a comunidade edáfico-epígea de Arthropoda e a mirmecofauna: bases para a bioindicação do processo sucessional na restauração ecológica / The influence of forest development on edaphic and epigeic Arthropod communities and ant fauna: bases for bioindicantion of successional process in ecological restoration
A restauração ecológica visa o estabelecimento de ecossistemas semelhantes aos que originalmente ocupavam uma determinada área que foi degradada. Todavia, os resultados dos esforços envolvidos na restauração e no retorno dos processos ecológicos naturais são difíceis de serem medidos, pois faltam métodos apropriados. Os bioindicadores são ferrame
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/10/2012
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22. Bioindicadores de qualidade do solo em um gradiente de restauração ambiental / Soil quality bioindicators of an environmental restoration gradient
Impactos ambientais podem interferir nas características da biomassa microbiana, no processo de ciclagem de nutrientes, nas características físicoquímicas e também na diversidade da microbiota e da macrofauna. O objetivo desse trabalho foi conhecer as diferentes interações entre estes atributos e identificar os indicadores da qualidade do solo envolvi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012
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23. Avaliação da contaminação de córregos de Cerrado por metais pesados utilizando-se larvas de Odonata como bioindicadores / Assessment of heavy metal contamination in Brazilian savannas streams using Odonata larvae as bioindicators
The aquatic ecosystems are the main receptors of pollutants and contaminants from industrial and agricultural activities and of the discharge of sewage. Among the various substances potentially harmful, heavy metals are a threat to the aquatic ecosystems and the biota. This research aimed to evaluate the contamination of Cerrados streams by heavy metals usin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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24. BIOINDICADORES E PARÂMETROS ABIÓTICOS DOS RECURSOS HÍDRICOS DA SERRA DE ITABAIANA-SERGIPE. / BIOINDICATORS AND ABIOTIC PARAMETERS WATER RESOURCES OF THE SERRA DE ITABAIANA - SERGIPE.
Esta pesquisa objetivou avaliar o estado de conservação, parâmetros físico-químicos da água e composição de bioindicadores dos riachos da serra de Itabaiana dentro do Parque Nacional Serra de Itabaiana com a finalidade de contribuir para o plano de manejo e gestão dos recursos hídricos locais. O estudo foi dividido em três etapas: a primeira, apli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012