Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil
Abstract INTRODUCTION: Haemagogus are mosquitoes with diurnal habits that live preferentially in forest areas. In Brazil, they are considered the primary vectors of wild yellow fever. METHODS: The ecological relationships between Haemagogus spegazzinii, the environment, and some of its activities...
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| Language: | English |
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Sociedade Brasileira de Medicina Tropical (SBMT)
2020-11-01
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| Series: | Revista da Sociedade Brasileira de Medicina Tropical |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822020000100384&tlng=en |
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| author | Cássio Lázaro Silva-Inacio Anne Aline Pereira de Paiva Josélio Maria Galvão de Araújo Maria de Fátima Freire de Melo Ximenes |
| author_facet | Cássio Lázaro Silva-Inacio Anne Aline Pereira de Paiva Josélio Maria Galvão de Araújo Maria de Fátima Freire de Melo Ximenes |
| author_sort | Cássio Lázaro Silva-Inacio |
| collection | DOAJ |
| description | Abstract INTRODUCTION: Haemagogus are mosquitoes with diurnal habits that live preferentially in forest areas. In Brazil, they are considered the primary vectors of wild yellow fever. METHODS: The ecological relationships between Haemagogus spegazzinii, the environment, and some of its activities in the semiarid region of Rio Grande do Norte were analyzed by collecting eggs with ovitraps, actively searching in tree holes, capturing adults in Shannon traps, and conducting an investigation for viral infections. RESULTS: A total of 2420 eggs, 271 immature specimens (larvae and pupae), and 206 adults were collected. Egg collection depended on rainfall and relative humidity, with oviposition occurring between January and May. Larvae were found in five plant species, including Tabebuia aurea (craibeira), with 160 larvae collected. We observed shared breeding sites between Hg. spegazzinii and the following species: Aedes albopictus, Aedes terrens, Culex spp., and Toxorhynchites theobaldi. Adults exhibited greater activity between 5 pm and 6 pm, when 191 (92.7%) specimens were captured, while only 1 (0.5%) was collected between 7 pm and 8 pm. The relationship between Hg. spegazzinii and rainfall was significant, with positive correlations with accumulated rainfall 5, 10, 15, 20, and 30 days before mosquito collection. We found that the species was infected with the DENV-2 virus. CONCLUSIONS: This work contributes new information on the bioecology of Hg. spegazzinii, with data on the main reproduction periods, oviposition, breeding sites, activity times, and the relationship between the species and meteorological variables in the Caatinga of northeastern Brazil. |
| first_indexed | 2024-04-12T14:40:14Z |
| format | Article |
| id | doaj.art-d908de2a039e41e5ad63629b5f0f9b98 |
| institution | Directory Open Access Journal |
| issn | 1678-9849 |
| language | English |
| last_indexed | 2024-04-12T14:40:14Z |
| publishDate | 2020-11-01 |
| publisher | Sociedade Brasileira de Medicina Tropical (SBMT) |
| record_format | Article |
| series | Revista da Sociedade Brasileira de Medicina Tropical |
| spelling | doaj.art-d908de2a039e41e5ad63629b5f0f9b982022-12-22T03:28:54ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-98492020-11-015310.1590/0037-8682-0502-2020Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of BrazilCássio Lázaro Silva-InacioAnne Aline Pereira de PaivaJosélio Maria Galvão de AraújoMaria de Fátima Freire de Melo Ximeneshttps://orcid.org/0000-0001-7173-5416Abstract INTRODUCTION: Haemagogus are mosquitoes with diurnal habits that live preferentially in forest areas. In Brazil, they are considered the primary vectors of wild yellow fever. METHODS: The ecological relationships between Haemagogus spegazzinii, the environment, and some of its activities in the semiarid region of Rio Grande do Norte were analyzed by collecting eggs with ovitraps, actively searching in tree holes, capturing adults in Shannon traps, and conducting an investigation for viral infections. RESULTS: A total of 2420 eggs, 271 immature specimens (larvae and pupae), and 206 adults were collected. Egg collection depended on rainfall and relative humidity, with oviposition occurring between January and May. Larvae were found in five plant species, including Tabebuia aurea (craibeira), with 160 larvae collected. We observed shared breeding sites between Hg. spegazzinii and the following species: Aedes albopictus, Aedes terrens, Culex spp., and Toxorhynchites theobaldi. Adults exhibited greater activity between 5 pm and 6 pm, when 191 (92.7%) specimens were captured, while only 1 (0.5%) was collected between 7 pm and 8 pm. The relationship between Hg. spegazzinii and rainfall was significant, with positive correlations with accumulated rainfall 5, 10, 15, 20, and 30 days before mosquito collection. We found that the species was infected with the DENV-2 virus. CONCLUSIONS: This work contributes new information on the bioecology of Hg. spegazzinii, with data on the main reproduction periods, oviposition, breeding sites, activity times, and the relationship between the species and meteorological variables in the Caatinga of northeastern Brazil.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822020000100384&tlng=enHaemagogusCulicidaeBiological cycleEcological relationshipsOvipositionBreeding sites |
| spellingShingle | Cássio Lázaro Silva-Inacio Anne Aline Pereira de Paiva Josélio Maria Galvão de Araújo Maria de Fátima Freire de Melo Ximenes Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil Revista da Sociedade Brasileira de Medicina Tropical Haemagogus Culicidae Biological cycle Ecological relationships Oviposition Breeding sites |
| title | Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil |
| title_full | Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil |
| title_fullStr | Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil |
| title_full_unstemmed | Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil |
| title_short | Ecological relationships of Haemagogus spegazzinii (Diptera: Culicidae) in a semiarid area of Brazil |
| title_sort | ecological relationships of haemagogus spegazzinii diptera culicidae in a semiarid area of brazil |
| topic | Haemagogus Culicidae Biological cycle Ecological relationships Oviposition Breeding sites |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822020000100384&tlng=en |
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