Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil
The relationships between environmental exposure to risk agents and health conditions have been studied with the aid of remote sensing imagery, a tool particularly useful in the study of vegetation cover. This study aims to evaluate the influence of environmental variables on the spatial distributio...
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2012-05-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762012000300015&lng=en&tlng=en |
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| author | Everton Falcão de Oliveira Elaine Araújo e Silva Carlos Eurico dos Santos Fernandes Antonio Conceição Paranhos Filho Roberto Macedo Gamarra Alisson André Ribeiro Reginaldo Peçanha Brazil Alessandra Gutierrez de Oliveira |
| author_facet | Everton Falcão de Oliveira Elaine Araújo e Silva Carlos Eurico dos Santos Fernandes Antonio Conceição Paranhos Filho Roberto Macedo Gamarra Alisson André Ribeiro Reginaldo Peçanha Brazil Alessandra Gutierrez de Oliveira |
| author_sort | Everton Falcão de Oliveira |
| collection | DOAJ |
| description | The relationships between environmental exposure to risk agents and health conditions have been studied with the aid of remote sensing imagery, a tool particularly useful in the study of vegetation cover. This study aims to evaluate the influence of environmental variables on the spatial distribution of the abundance of Lutzomyia longipalpis and the reported canine and human visceral leishmaniasis (VL) cases at an urban area of Campo Grande, state of Mato Grosso do Sul. The sandfly captures were performed in 13 residences that were selected by raffle considering four residences or collection station for buffer. These buffers were generated from the central house with about 50, 100 and 200 m from it in an endemic area of VL. The abundance of sandflies and human and canine cases were georreferenced using the GIS software PCI Geomatica. The normalized difference vegetation index (NDVI) and percentage of land covered by vegetation were the environmental variables extracted from a remote sensing IKONOS-2 image. The average NDVI was considered as the complexity of habitat and the standard deviation as the heterogeneity of habitat. One thousand three hundred sixty-seven specimens were collected during the catch. We found a significant positive linear correlation between the abundance of sandflies and the percentage of vegetation cover and average NDVI. However, there was no significant association between habitat heterogeneity and the abundance of these flies. |
| first_indexed | 2024-03-12T05:00:23Z |
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| id | doaj.art-fdc26af1459e420a96c02d3a9b940324 |
| institution | Directory Open Access Journal |
| issn | 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T05:00:23Z |
| publishDate | 2012-05-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
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| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-fdc26af1459e420a96c02d3a9b9403242023-09-03T09:14:17ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz1678-80602012-05-01107339640110.1590/S0074-02762012000300015S0074-02762012000300015Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, BrazilEverton Falcão de Oliveira0Elaine Araújo e Silva1Carlos Eurico dos Santos Fernandes2Antonio Conceição Paranhos Filho3Roberto Macedo Gamarra4Alisson André Ribeiro5Reginaldo Peçanha Brazil6Alessandra Gutierrez de Oliveira7Faculdade de Medicina Dr Hélio MandettaSecretaria Municipal de Saúde de Campo GrandeCentro de Ciências Biológicas e da SaúdeUniversidade Federal de Mato Grosso do SulUniversidade Federal de Mato Grosso do SulUniversidade Federal de Mato Grosso do SulFundação Oswaldo CruzFaculdade de Medicina Dr Hélio MandettaThe relationships between environmental exposure to risk agents and health conditions have been studied with the aid of remote sensing imagery, a tool particularly useful in the study of vegetation cover. This study aims to evaluate the influence of environmental variables on the spatial distribution of the abundance of Lutzomyia longipalpis and the reported canine and human visceral leishmaniasis (VL) cases at an urban area of Campo Grande, state of Mato Grosso do Sul. The sandfly captures were performed in 13 residences that were selected by raffle considering four residences or collection station for buffer. These buffers were generated from the central house with about 50, 100 and 200 m from it in an endemic area of VL. The abundance of sandflies and human and canine cases were georreferenced using the GIS software PCI Geomatica. The normalized difference vegetation index (NDVI) and percentage of land covered by vegetation were the environmental variables extracted from a remote sensing IKONOS-2 image. The average NDVI was considered as the complexity of habitat and the standard deviation as the heterogeneity of habitat. One thousand three hundred sixty-seven specimens were collected during the catch. We found a significant positive linear correlation between the abundance of sandflies and the percentage of vegetation cover and average NDVI. However, there was no significant association between habitat heterogeneity and the abundance of these flies.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762012000300015&lng=en&tlng=enLutzomyia longipalpisgeotechnologiesvegetation coverspatial analysisleishmaniasis |
| spellingShingle | Everton Falcão de Oliveira Elaine Araújo e Silva Carlos Eurico dos Santos Fernandes Antonio Conceição Paranhos Filho Roberto Macedo Gamarra Alisson André Ribeiro Reginaldo Peçanha Brazil Alessandra Gutierrez de Oliveira Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil Memorias do Instituto Oswaldo Cruz Lutzomyia longipalpis geotechnologies vegetation cover spatial analysis leishmaniasis |
| title | Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil |
| title_full | Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil |
| title_fullStr | Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil |
| title_full_unstemmed | Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil |
| title_short | Biotic factors and occurrence of Lutzomyia longipalpis in endemic area of visceral leishmaniasis, Mato Grosso do Sul, Brazil |
| title_sort | biotic factors and occurrence of lutzomyia longipalpis in endemic area of visceral leishmaniasis mato grosso do sul brazil |
| topic | Lutzomyia longipalpis geotechnologies vegetation cover spatial analysis leishmaniasis |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762012000300015&lng=en&tlng=en |
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