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Previous issue date: 2008-11-26 / The aim of this study was to characterize the association between the seasonality of
dermatobiosis in bovines and its dipterans potential vectors as well as evaluate the association
among the counts of Dermatobia hominis larvae and of potential vectors with meteorologicals
data. It also had the objective of delimiting, quantifying and characterizing the geographical
space of Serop?dica and Itagua? municipalities in relation to the favorable degrees for the
occurrence of dermatobiosis in bovines in the rainy and dry periods using the Vista SAGA?
2007 information system. The seasonal fluctuation of D. hominis larvae was obtained by
counts in ten bovines and of muscoids dipterans by capture using Adultrap? traps with sardine
bait, once a month each, in three properties named A, B and C, localized in the Serop?dica,
Paracambi and Itagua? municipalities, respectively, in the period of January 2006 to
December 2007. The meteorological data of compensated mean temperature, pluvial
precipitation and relative humidity were obtained in the Agricultural Ecology Station
(22?48'S, 43?41'W and 33m of altitude). The associations between D. hominis larvae
fluctuations, adult dipterans and climatological data were verified using the Spearman
correlation test. Kruskal-Wallis and Mann-Whitney tests were used in the analysis of the
significant differences between the rainy and dry periods in each property in the monthly
average of D. hominis larvae, in the total monthly number and of dipterans family and in the
analysis of other studies. In the elaboration of models by geoprocessing, some abiotic factors
were used: occupation and covering of the land, altitude, declivity, soils and climatic factors,
in which the evaluation, signature and monitorship functions of the Vista SAGA? 2007
program were applied. The infestation by D. hominis larvae in bovines was present during the
24 months of study in the three properties. A total of 18.966 dipterans potential vectors was
captured, being 30,16% in the A property, 34,59% in the B property and 35,25% in the C
property but there were no significant statistic difference between these. There was a positive
and significant correlation (rs=0,63) between monthly averages of D. hominis larvae and
relative humidity in 2006 at the A property; there was a positive and significant correlation
between the total number of captured dipterans and pluvial precipitation (rs=0,80) and
temperature (rs=0,60) at the B and C properties, respectively, in 2007. It was also observed a
positive and significant correlation between the total number of captured dipterans of the
Sarcophagidae family (rs=0,60) with the temperature in the C property in 2006, and between
Muscidae (rs=0,67) and Calliphoridae (rs=0,76) with pluvial precipitation in the B property in
2007. There wasn t an association between monthly averages of D. hominis larvae and
dipterans. It was verified a pattern lack in the association between monthly and periods
fluctuations, rainy and dry of D. hominis larvae with the dipterans potential vectors
fluctuations and of both with meteorologicals data. The geoprocessing allowed delimiting,
quantifying and characterizing the potential of space temporal distribution of dermatobiosis in
bovines. / Este estudo teve como objetivos caracterizar a associa??o entre a sazonalidade da
dermatobiose em bovinos e seus d?pteros potenciais vetores, assim como avaliar a associa??o
entre as contagens de larvas de Dermatobia hominis e de potenciais vetores com os dados
meteorol?gicos. Teve tamb?m como objetivo, delimitar, quantificar e caracterizar o espa?o
geogr?fico dos munic?pios de Serop?dica e Itagua? quanto aos gradientes de favorabilidade
para a ocorr?ncia da dermatobiose em bovinos nos per?odos chuvoso e seco utilizando o
sistema de informa??o Vista SAGA? 2007. A flutua??o sazonal de larvas de D. hominis foi
obtida por contagens em dez bovinos e a de d?pteros musc?ides por captura, usando
armadilhas Adultrap? com isca de sardinha, ambos uma vez ao m?s, nas tr?s propriedades
denominadas A, B e C, localizadas nos munic?pios de Serop?dica, Paracambi e Itagua?,
respectivamente, no per?odo de janeiro de 2006 a dezembro de 2007. Os dados
meteorol?gicos de temperatura m?dia compensada, precipita??o pluvial e umidade relativa,
foram obtidos na Esta??o Ecologia Agr?cola (22?48'S, 43?41'W e 33m de altitude). As
associa??es entre as flutua??es de larvas de D. hominis, d?pteros adultos e dados
climatol?gicos foram verificadas utilizando-se o teste de correla??o de Spearman. Os testes de
Kruskal-Wallis e Mann-Whitney foram empregados na an?lise das diferen?as significativas
entre os per?odos, chuvoso e seco, por propriedade, para a m?dia mensal de larvas de D.
hominis, o n?mero mensal total e por fam?lia de d?pteros e na an?lise de dados publicados em
outros estudos. Para a elabora??o dos modelos por geoprocessamento, utilizaram-se os fatores
abi?ticos: uso e cobertura das terras, altitude, declividade, solos e fatores clim?ticos,
aplicando-se as fun??es avalia??o, assinatura e monitoria do programa Vista SAGA? 2007. A
infesta??o por larvas de D. hominis em bovinos esteve presente ao longo dos 24 meses de
estudo nas tr?s propriedades. Um total de 18.966 d?pteros potenciais vetores foi capturado.
Deste, 30,16% foram capturados na propriedade A, 34,59% na propriedade B e 35,25% na
propriedade C, mas sem diferen?a estat?stica significativa entre estas. Houve correla??o
positiva e significativa (rs=0,63) entre as m?dias mensais de larvas de D. hominis e umidade
relativa, no ano de 2006, na propriedade A; houve correla??o positiva e significativa entre o
n?mero total de d?pteros capturados e precipita??o pluvial (rs=0,80) e tamb?m com a
temperatura (rs=0,60) nas propriedades B e C, respectivamente, no ano de 2007. Observou-se
tamb?m correla??o positiva e significativa entre o n?mero total de d?pteros capturados da
fam?lia Sarcophagidae (rs=0,60) com a temperatura na propriedade C no ano de 2006 e entre
Muscidae (rs=0,67) e Calliphoridae (rs=0,76) com precipita??o pluvial na propriedade B em
2007. N?o ocorreu associa??o entre as m?dias mensais de larvas de D. hominis e de d?pteros.
Constatou-se uma falta de padr?o na associa??o entre as flutua??es mensais e por per?odos,
chuvoso e seco, das larvas de D. hominis com as flutua??es de d?pteros potenciais vetores e de
ambas com os dados meteorol?gicos. O geoprocessamento permitiu delimitar, quantificar e
caracterizar o potencial de distribui??o espa?o-temporal da dermatobiose nos per?odos
chuvoso e seco.
| Identifer | oai:union.ndltd.org:IBICT/oai:localhost:tede/833 |
| Date | 26 November 2008 |
| Creators | Souza, F?bio Silva de |
| Contributors | Fonseca, Adevair Henrique da, Silva, Jorge Xavier da, Pereira, Maria Julia Salim |
| Publisher | Universidade Federal Rural do Rio de Janeiro, Curso de P?s-Gradua??o em Ci?ncias Veterin?rias, UFRRJ, Brasil, Parasitologia Veterin?ria |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ |
| Rights | info:eu-repo/semantics/openAccess |
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