|
|
|
| Registros recuperados: 32 | |
|
|
| Peruquetti,Rui Carlos; Campos,Lúcio Antonio de Oliveira; Coelho,Claudia Diniz Pinto; Abrantes,Célio Vicente Machado; Lisboa,Luciane Cristina de Oliveira. |
| Collection data of Euglossinae males from Parque Estadual do Rio Doce (PERD) and Viçosa, both areas with remnants of Atlantic Rain Forest (Mata Atlântica) in Minas Gerais state, Brazil are presented. Comparisons made among three fragments with different sizes and states of disturbance from Viçosa showed differences in abundance of most common species and apparently, Eulaema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites. Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in PERD, and the most abundant was Eulaema cingulata (Fabricius, 1804). At Viçosa,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apidae; Euglossini; Atlantic Forest; Conservation; Bioindicator. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000600012 |
| |
|
|
| Flores-Lopes,Fábio; Malabarba,Luiz R.; Pereira,Edson H.L.; Silva,José F. Pezzi da. |
| Little information is available about natural populations of fishes exposed to polluted waters in Brazil. Contaminants may be lethal or predispose fishes to sickness, being the analysis of aquatic organisms a good indicator of environmental quality. The violinha, Rineloricaria strigilata (Hensel, 1868), is a common loricariid catfish in the Guaíba lake basin, Rio Grande do Sul, Brazil, and has been selected as a bioindicator for being resident, occurring in more than 50% of the samples, and by showing externally detectable neoplasies. These are characterized by its dark pigmentation, bony plates hypertrophy, and hypertrophy and irregular arrangement of the odontodes. Histology showed hypertrophied epitelial tissues, with an increased number of secretory... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rineloricaria strigilata; Bioindicator; Neoplasm. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300006 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Casas, Stellio. |
| Monitoring coastal contamination of trace metals using bivalve molluscs as quantitative bioindicators is widely used in many international monitoring programs. The bioaccumulation of metal within an organism results from the interaction between physiological (growth, loss of weight, absorption, accumulation), chemical (metal concentration, speciation, bioavailability) and environmental factors (temperature, SPM, chlorophyll). By utilizing the parameters above in this study, it appears that modeling metal dynamics in marine mussels is a reliable tool. The model allows understanding the bioaccumulation process which results from the interactions between biological, chemical and environmental factors. One of the objective of this study was to couple a... |
| Tipo: Text |
Palavras-chave: Biomonitoring; Dynamic Energy Budget; Model; Trace metals; Bioaccumulation; Mytilus galloprovincialis; Mussel; Bioindicator; Surveillance; Budget énergétique dynamique; Modèle; Métaux traces; Bioaccumulation; Mytilus galloprovincialis; Moule; Bioindicateur. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/these-356.pdf |
| |
|
|
| Nakhle, Khaled; Cossa, Daniel; Khalaf, Ghaby; Beliaeff, Benoit. |
| The mussel, Brachidontes variabilis, and the limpet, Patella sp., were used as indicators to monitor cadmium, lead and mercury concentrations along the Lebanese coast. Studies were carried out in order to define the best strategy for assessing and minimizing the effects of size and physiological condition on the metal contents of the molluscs, and corrective models were constructed. Metal concentrations in surface water were measured to estimate bioconcentration factors (BCFs). The BCFs varied from 8.3 x 10(3) to 3.4 x 10(4), from 7.5 x 10(3) to 8.0 X 10(3) and from 3.0 x 10(4) to 3.2 x 10(4), for Cd, Pb and Hg, respectively. For limpets, BCFs varied from 1.7 x 10(4) to 7.4 x 10(4) for Cd, from 2.5 x 10(3) to 6 x 103 for Pb and remained fairly constant at... |
| Tipo: Text |
Palavras-chave: Lebanon; Mediterranean Sea; Bioconcentration factors; Patella sp; Brachidontes variabilis; Bioindicator; Trace metal. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1344.pdf |
| |
|
|
| Nemésio,André; Silveira,Fernando A.. |
| Male orchid bees were sampled with chemical baits monthly from July 1999 to April 2000 at six sites situated at different distances from the forest edge (0 to 4,000 m) at Parque Estadual do Rio Doce, the largest remnant of Atlantic Forest in the state of Minas Gerais, southeastern Brazil. The main goal of this study was to assess the abundance, richness, and the community structure of the orchid-bee fauna at different distances from the edge. In all, 1,183 males from 20 species were collected. Only minor and insignificant variation in richness and abundance were observed among the sites. Two dominant species, Euglossa analis Westwood (Hymenoptera: Apidae) and Eulaema cingulata (Fabricius) (Hymenoptera: Apidae), showed strongly opposing habitat... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Euglossina; Bioindicator; Conservation. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000300004 |
| |
|
|
| Costa Neto,Eraldo M.. |
| This paper deals with the semiotic meanings which are given both to the appearance and/or behavior of insect species according to the ethnoentomological knowledge of the inhabitants of the village of Pedra Branca, Bahia State, Brazil. Data were collected from February to May 2001 by performing open-ended, recorded interviews with nine men and twenty-five women, whose ages ranged from 19 to 82 years old. Data were analyzed by using the union model, which involves considering all available information on the surveyed subject. Twelve kinds of insects were associated with both beneficial and harmful events, as well as with the indication of changing weather. The way local people perceive and interpret the appearance and/or behavior of certain species of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicator; Ethnoentomology; Folk knowledge; Semiotic meaning. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000100007 |
| |
|
|
| Landa,Giovanni Guimarães; Barbosa,Francisco Antonio Rodrigues; Rietzler,Arnola Cecilia; Maia-Barbosa,Paulina Maria. |
| The aim of this work was to study the possible utilization of Thermocyclops decipiens as indicator of the trophic degree and water quality of some watersheds of the state of Minas Gerais. From the beginning of the decade of 90, T. decipiens was recorded in several water collections of the state, including the basins of the rivers Paranaíba, São Francisco, Doce and Grande, within environments mainly of meso and eutrophics characteristics. Of the 28 places of occurrence of the species and according to the water quality index (WQI) used by Environmental Foundation of Minas Gerais (FEAM), 7 of these environments presented WQI good, 16 medium, 4 bad and one very bad. This classification corroborated the hypothesis that T. decipiens could be used as indicator... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermocyclops decipiens; Water quality; Bioindicator. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400015 |
| |
|
| |
|
|
| Simião-Ferreira,Juliana; DeMarco Jr,Paulo; Mazão,Gustavo R; Carvalho,Adriana R. |
| In this study we determined the taxonomic diversity of larval Chironomidae upstream and downstream to discharges of the sewage treatment plant (STP) from Agro-industrial District of Anápolis, State of Goiás, Brazil. Additionally, we evaluated the use of the lognormal distribution as a measure of biotic integrity of this system. The Chironomidae communities were sampled in three sites, upstream and downstream of the discharge of the sewage treatment plant (STP). We fitted the truncate lognormal distribution based on a nonlinear regression of the datasets using least squares as loss function in an iterative quasi-Newton procedure. The total of 21,498 individuals were sampled, from 24 Chironomidae genera, Chironomus, Polypedilum, Rheotanytarsus e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environment disturbance; Lognormal model; Bioindicator. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000400004 |
| |
|
|
| Moser,Thomas; Frankenbach,Silja. |
| The objective of this work was to clarify whether the method to extract nematodes from European soils is suitable for forest soils and litter in the eastern of Paraná state, Brazil, and whether nematode abundance differs between sites with different ecosystems and levels of human interference. The study sites were situated in the coastal area of the Serra do Mar, near the town of Antonina, in Eastern Paraná, Brazil. Cobb's sieving and decanting method was more appropriate than ISO method, since extraction efficiency was higher and intra-sample variability was significantly lower. In order to achieve an extraction efficiency higher than 90%, Cobb's method was modified. For the extraction of nematodes from litter, the Baermann funnel, with an extraction time... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroforestry system; Bioindicator; Extraction method; Nematoda. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800027 |
| |
|
|
| Fernandes,Liliane Henriques; Nessimian,Jorge Luiz; Mendonça,Maria Cleide de. |
| The objectives of this work were to evaluate the richness and diversity of the Poduromorpha fauna in two biotopes in Restinga de Maricá, RJ, Brazil, to identify the characteristic species of each biotope and to determine the relationships between the community structure and the abiotic environmental parameters. Representatives of the Poduromorpha (Collembola) order were studied under an ecological viewpoint in halophyte-psammophyte vegetation and foredune zone in preserved areas of Restinga de Maricá, a sand dune environment in the state of Rio de Janeiro, Brazil. The foredune zone showed the highest diversity, richness and equitability of springtail species. Differences in the fundamental, accessory and accidental species in each environment were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicator; Ecology; Littoral; Springtails. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800036 |
| |
|
|
| Somogyi, Zoltan. |
| A fenntarthatóság mérése, de definiálása is nehézkes a jövőre vonatkozó feltételezések bizonytalansága miatt. Korlátozott következtetések vonhatók le pl. a „kereslet és kínálat” összehasonlításának elvén alapuló, egyre közismertebb ökológiai lábnyomból, vagy más, a fenntarthatóság bizonyos aspektusait részletesebben jellemző indikátorok tényleges értékeinek és az előre elvárt értékek összevetéséből. Ilyen, fejlődő, korlátozott lehetőségeket nyújtó indikátorrendszer jött létre az erdőgazdálkodásban. A rendszer használatát nagymértékben korlátozza, hogy megalapozatlan az, hogy hány, illetve mennyire specifikus vagy mennyire aggregált indikátorokat alkalmaznak, és hogy az indikátorok mért értékeit hogyan értelmezik. Emiatt az indikátorértékek értelmezésében... |
| Tipo: Journal Article |
Palavras-chave: Fenntartható fejlődés; Erdőgazdálkodás; Fenntarthatósági indikátor; Bioindikátor; Sustainable development; Forest management; Sustainability indicator; Bioindicator; Crop Production/Industries; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/92482 |
| |
|
| |
|
| |
|
|
| Bolico, Cristiane Ferras; Oliveira, Eduardo Alves; Gantes, Marcel Lucas; Dumont, Luiz Felipe Cestari; Carrasco, Daiane Silveira; D´Incao, Fernando. |
| O trabalho objetiva inventariar a mirmecofauna de duas marismas distintas e estimar a diversidade, similaridade, bem como relacionar a temperatura, umidade relativa do ar e a pluviosidade aos padrões de flutuação de abundância desses insetos. Além disso, foram reconhecidas as espécies que atuam como indicadores ambientais. O estudo foi realizado em duas marismas localizadas no Estuário da Laguna Lagoa dos Patos, Ilha da Torotama e Molhe Oeste da Barra. Foram capturados 853 formicídeos, distribuídos em 19 gêneros. As duas marismas apresentaram índices de diversidade e abundância semelhantes, Ds = 0,958 e I = 0,042 na Ilha da Torotama e Ds = 0,8889 e I = 0,111 no Molhe Oeste da Barra. As flutuações dos grupos de formicídeos coincidiram em ambas as áreas,... |
| Tipo: Article |
Palavras-chave: Bioindicador; Ecossistema Costeiro; Formigas; Insetos; Ants; Malaise; Bioindicator; Coastal Ecosystem; Insects. |
| Ano: 2012 |
URL: http://hdl.handle.net/2315/246 |
| |
|
| |
| Registros recuperados: 32 | |
|
|
|
