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Almeida JF, Belchior HCM, Batista FAJC, Guimarães RCDS, Maitra A, Ríos Velásquez CM, Izzo TJ, Pessoa FAC. Change in the faunal composition of mosquitoes (Diptera: Culicidae) along a heterogeneous landscape gradient in the Brazilian Amazon. PLoS One 2023; 18:e0288646. [PMID: 37440515 DOI: 10.1371/journal.pone.0288646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
This study aimed to evaluate the influence of different anthropic landscape profiles on the diversity and distribution of mosquito species in a rural settlement of the Brazilian Amazon. Eight field collections were conducted at 18 sampling points interspersed throughout 2020-2021. Plastic containers, bamboo internodes, and tires were used as traps to capture immature mosquitoes in three distinct habitats: forest, forest edge, and peridomicile. A total of 15,547 individuals, distributed in 26 species of culicids, were collected. The most abundant species were Culex urichii (8,376 specimens), Culex (Melanoconion) (2,473 specimens), and Aedes albopictus (1,252 specimens). Forest habitat showed the highest abundance, and forest edge showed the highest species richness. Different types of environments influenced both the abundance and richness of mosquitoes. The species composition was also significantly different between the analyzed sites, mainly between forest and peridomicile environments. The change in species dominance could largely explain this change in mosquito community composition. Haemagogus janthinomys, an important sylvatic arbovirus vector, was found in peridomicile habitats and Ae. albopictus, a vector associated with human environments, was found in forest habitats, thus providing evidence of species spillover. Our results indicated that landscape changes affect mosquito communities, influencing their richness and abundance. These changes may have implications for future arboviral outbreaks in this rural settlement due to the possible establishment of sylvatic vector species in anthropic environments.
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Affiliation(s)
- Jessica Feijó Almeida
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Heliana Christy Matos Belchior
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
| | - Fernando Antonio Jutahy Colares Batista
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Rebeca Cristina de Souza Guimarães
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
| | - Ahana Maitra
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
| | - Claudia María Ríos Velásquez
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
| | | | - Felipe Arley Costa Pessoa
- Laboratório de Ecologia e Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Entomologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane Fiocruz Amazônia, Manaus, Amazonas, Brazil
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Rios FGF, Alves do Nascimento V, Naveca FG, Vieira DS, Julião GR. Arbovirus detection in synanthropic mosquitoes from the Brazilian Amazon and in mosquito saliva using Flinders Technology Associates cards. Microbes Infect 2023; 25:105046. [PMID: 36167274 DOI: 10.1016/j.micinf.2022.105046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 09/03/2022] [Accepted: 09/19/2022] [Indexed: 02/03/2023]
Abstract
Although arbovirus transmission and identifying target vectors may provide a baseline for planning disease control strategies, there are many gaps in knowledge regarding these mosquitoes and viral species in urban, rural, or sylvatic habitats in the Brazilian Amazon. Our goal was to screen for dengue, chikungunya, and Zika viruses in synanthropic mosquitoes and with Flinders Technology Associates (FTA) cards using insect saliva. Mosquitoes were caught using ovitraps and aspirators in the city of Porto Velho, Rondônia, Brazil. Honey-baited FTA cards were placed in mosquito cages for 15 days; whole mosquitoes and FTA cards were analysed for viral RNA using RT-qPCR assays. One pool of Aedes aegypti females was found to be infected with the Zika virus and one male mosquito was infected with dengue-4, suggesting natural vertical/venereal transmission. Our study also reported evidence of vertical/venereal transmission of ZIKV in Culex quinquefasciatus males for the first time in the Brazilian Amazon, and the feasibility of using FTA cards to detect arboviruses in the saliva of field-collected mosquitoes. Vertical/venereal transmission of viruses by atypical mosquito species reinforces the need for combined viral and entomological screening in arbovirus surveillance programs.
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Affiliation(s)
- Flávia Geovana Fontineles Rios
- Laboratório de Entomologia I, Fiocruz Rondônia - Fundação Oswaldo Cruz, Lagoa, 76812-245, Porto Velho, Rondônia State, Brazil; Programa de Pós-Graduação em Biologia Experimental - PGBIOEXP, Fundação Universidade Federal de Rondônia - UNIR, BR-364, km 9.5, 76801-059, Porto Velho, Rondônia State, Brazil.
| | - Valdinete Alves do Nascimento
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane - Fiocruz Amazônia, Adrianópolis, 69057-070, Manaus, Amazonas State, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Manguinhos, 21040-360, Rio de Janeiro State, Brazil
| | - Felipe Gomes Naveca
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane - Fiocruz Amazônia, Adrianópolis, 69057-070, Manaus, Amazonas State, Brazil; Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane - Fiocruz Amazônia, Adrianópolis, 69057-070, Manaus, Amazonas State, Brazil
| | - Deusilene Souza Vieira
- Programa de Pós-Graduação em Biologia Experimental - PGBIOEXP, Fundação Universidade Federal de Rondônia - UNIR, BR-364, km 9.5, 76801-059, Porto Velho, Rondônia State, Brazil; Laboratório de Virologia Molecular, Fiocruz Rondônia - Fundação Oswaldo Cruz, Lagoa, 76812-245, Porto Velho, Rondônia State, Brazil; Instituto Nacional de Epidemiologia da Amazônia Ocidental - INCT-EpiAmO, Lagoa, 76812-245, Porto Velho, Rondônia State, Brazil
| | - Genimar Rebouças Julião
- Laboratório de Entomologia I, Fiocruz Rondônia - Fundação Oswaldo Cruz, Lagoa, 76812-245, Porto Velho, Rondônia State, Brazil; Programa de Pós-Graduação em Biologia Experimental - PGBIOEXP, Fundação Universidade Federal de Rondônia - UNIR, BR-364, km 9.5, 76801-059, Porto Velho, Rondônia State, Brazil; Instituto Nacional de Epidemiologia da Amazônia Ocidental - INCT-EpiAmO, Lagoa, 76812-245, Porto Velho, Rondônia State, Brazil
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Srisuka W, Sulin C, Sommitr W, Rattanarithikul R, Aupalee K, Saeung A, Harbach RE. Mosquito (Diptera: Culicidae) Diversity and Community Structure in Doi Inthanon National Park, Northern Thailand. INSECTS 2022; 13:814. [PMID: 36135515 PMCID: PMC9505505 DOI: 10.3390/insects13090814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/31/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
Urbanization and human activities create new suitable aquatic habitats for the immature stages of mosquitoes in many countries. This also applies to Doi Inthanon National Park in northern Thailand, which is named for the highest mountain in the country. Despite its popularity, there is no information regarding mosquito diversity and community structure in the different ecosystems of the park. Monthly collections of immature stages from various habitats were conducted from August 2004 to December 2005 using dipping and sucking methods. The specimens collected from each habitat were reared to adults and identified based on their morphology. Diversity parameters and community structure were statistically analyzed. A total of 140 species (3795 specimens) belonging to 15 genera were identified. Among these, four genera (Culex, Aedes, Anopheles, and Uranotaenia) had high species richness, each represented by 48, 27, 19, and 15 species, respectively. Aedes albopictus was the most relatively abundant species, representing 6.7% of the total number of captured specimens, followed by Tripteroides aranoides (5.6%) and Cx. mimulus (5%). Species richness in natural habitats was significantly higher than in artificial containers. Species richness and abundance were highest in the rainy season. In comparison to agricultural areas and villages, mosquito diversity was found to be higher in forest areas. Ground pools, stream pools, rock pools, bamboo stumps, bamboo internode, and rice fields were the most preferred natural habitats. The results indicate that Doi Inthanon National Park has a high mosquito diversity. Each species exhibits differences in abundance and distribution in different habitats, which is useful information for planning conservation measures and vector control in the park.
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Affiliation(s)
- Wichai Srisuka
- Entomology Section, Queen Sirikit Botanic Garden, P.O. Box 7, Chiang Mai 50180, Thailand
| | - Chayanit Sulin
- Entomology Section, Queen Sirikit Botanic Garden, P.O. Box 7, Chiang Mai 50180, Thailand
| | - Wirat Sommitr
- Entomology Section, Queen Sirikit Botanic Garden, P.O. Box 7, Chiang Mai 50180, Thailand
| | | | - Kittipat Aupalee
- Center of Insect Vector Study, Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Atiporn Saeung
- Center of Insect Vector Study, Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Ralph E. Harbach
- Scientific Associate, Natural History Museum, London SW7 5BD, UK
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Meireles ACA, da Silva LR, Simplício MF, de Lima AA, Rios FGF, de Menezes CA, Feitoza LHM, Julião GR. Anopheline diversity in urban and peri-urban malaria foci: comparison between alternative traps and seasonal effects in a city in the Western Brazilian Amazon. Malar J 2022; 21:258. [PMID: 36068530 PMCID: PMC9450372 DOI: 10.1186/s12936-022-04274-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 08/22/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Continuous vector surveillance and sustainable interventions are mandatory in order to prevent anopheline proliferation (or spread to new areas) and interrupt malaria transmission. Anopheline abundance and richness were evaluated in urban and peri-urban malaria foci at a medium-sized city in the Brazilian Amazon, comparing the protected human landing catch technique (PHLC) and alternative sampling methods over different seasonal periods. Additional information was assessed for female feeding behaviour and faunal composition. METHODS Anophelines were sampled bimonthly in four urban and peri-urban sites in the city of Porto Velho, state of Rondônia, Brazil. The average number of captured mosquitoes was compared between an PHLC (gold standard), a tent trap (Gazetrap), and a barrier screen by means of generalized linear mixed models (GLMM), which also included season and environment (peri-urban/urban) as predictors. RESULTS Overall, 2962 Anopheles individuals belonging to 12 species and one complex were caught; Anopheles darlingi represented 86% of the individuals. More mosquitoes were captured in the peri-urban setting, and the urban setting was more diverse. The model estimates that significantly more anophelines were collected by PHLC than by the Screen method, and Gazetrap captured fewer individuals. However, the Screen technique yielded more blood-engorged females. The peak hours of biting activity were from 6 to 7 p.m. in urban areas and from 7 to 8 p.m. in peri-urban areas. CONCLUSIONS Although peri-urban settings presented a greater abundance of anophelines, Shannon and Simpson diversities were higher in urban sites. Each technique proved to be useful, depending on the purpose: PHLC was more effective in capturing the highest anopheline densities, Gazetrap caught the greatest number of species, and the barrier screen technique captured more engorged individuals. There was no seasonal effect on Anopheles assemblage structure; however, a more diverse fauna was caught in the transitional season. Biting activity was more intense from 6 to 8 p.m., with a predominance of An. darlingi.
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Affiliation(s)
- Anne Caroline Alves Meireles
- Postgraduate Program in Experimental Biology (PGBIOEXP), Federal University of Rondônia (UNIR), BR-364, Km 9.5, Porto Velho, RO, 78900-550, Brazil. .,Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil.
| | - Lucas Rosendo da Silva
- Postgraduate Program in Experimental Biology (PGBIOEXP), Federal University of Rondônia (UNIR), BR-364, Km 9.5, Porto Velho, RO, 78900-550, Brazil.,Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil.,INCT-EpiAmO - National Institute of Epidemiology of Western Amazônia, Porto Velho, RO, Brazil
| | - Marlon Ferreira Simplício
- Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil
| | - Alzemar Alves de Lima
- Centro de Pesquisa em Medicina Tropical de Rondônia, CEPEM-RO, Porto Velho, RO, 76812-329, Brazil.,Centro Universitário São Lucas, Porto Velho, RO, 76805-846, Brazil
| | - Flávia Geovana Fontineles Rios
- Postgraduate Program in Experimental Biology (PGBIOEXP), Federal University of Rondônia (UNIR), BR-364, Km 9.5, Porto Velho, RO, 78900-550, Brazil.,Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil
| | - Carla Augusta de Menezes
- Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil
| | - Luiz Henrique Maciel Feitoza
- Postgraduate Program in Experimental Biology (PGBIOEXP), Federal University of Rondônia (UNIR), BR-364, Km 9.5, Porto Velho, RO, 78900-550, Brazil.,Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil
| | - Genimar Rebouças Julião
- Laboratory of Entomology, Oswaldo Cruz Foundation, FIOCRUZ Rondônia, Porto Velho, RO, 76812-245, Brazil.,INCT-EpiAmO - National Institute of Epidemiology of Western Amazônia, Porto Velho, RO, Brazil
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Gámez S, Harris NC. Conceptualizing the 3D niche and vertical space use. Trends Ecol Evol 2022; 37:953-962. [PMID: 35872027 DOI: 10.1016/j.tree.2022.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/24/2022] [Accepted: 06/27/2022] [Indexed: 11/19/2022]
Abstract
Spatial partitioning in ecological communities has predominantly been described in two dimensions, yet habitat is complex and 3D. Complex space use mediates community structure and interaction strength by expanding spatial, temporal, and dietary dimensions. Vertical stratification of resources provides opportunities for novel specializations, creating a 3D niche. Competition and predation are mediated by 3D space use, as individuals use the vertical axis to access prey, flee predators, or avoid competitors. The 3D niche is important for long-term conservation strategies as species must navigate tradeoffs in habitat use between strata-specific threats and suboptimal habitat patches. Ultimately, elucidating the 3D niche has implications for protected area management and corridor design that directly influence species persistence and ecosystem function in a rapidly changing world.
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Affiliation(s)
- Siria Gámez
- Applied Wildlife Ecology Lab, Yale School of the Environment, Yale University 195 Prospect Street, New Haven, CT 06511, USA.
| | - Nyeema C Harris
- Applied Wildlife Ecology Lab, Yale School of the Environment, Yale University 195 Prospect Street, New Haven, CT 06511, USA
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Pérez-Ramos DW, Ramos MM, Payne KC, Giordano BV, Caragata EP. Collection Time, Location, and Mosquito Species Have Distinct Impacts on the Mosquito Microbiota. FRONTIERS IN TROPICAL DISEASES 2022. [DOI: 10.3389/fitd.2022.896289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The mosquito microbiota affects many aspects of mosquito biology including development and reproduction. It also strongly impacts interactions between the mosquito host and pathogens that cause important disease in humans, such as dengue and malaria. Critically, the mosquito microbiota is highly diverse and can vary in composition in response to multiple environmental variables, but these effects are not always consistent. Understanding how the environment shapes mosquito microbial diversity is a critical step in elucidating the ubiquity of key host-microbe-pathogen interactions in nature. To that end, we examined the role of time of collection, collection location and host species on mosquito microbial diversity by repeating collections at two-month intervals on a trapping grid spanning three distinct biomes. We then used 16S rRNA sequencing to compare the microbiomes of Aedes taeniorhynchus, Anopheles crucians, and Culex nigripalpus mosquitoes from those collections. We saw that mosquito diversity was strongly affected by both time and collection location. We also observed that microbial richness and diversity increased from March to May, and that An. crucians and Cx. nigripalpus had greater microbial diversity than Ae. taeniorhynchus. However, we also observed that collection location had no impact on microbial diversity except for significantly lower bacterial richness observed in mosquitoes collected from the mangrove wetlands. Our results highlight that collection time, collection location, and mosquito species each affect aspects of mosquito microbial diversity, but their importance is context dependent. We also demonstrate that these variables have differing impacts on mosquito diversity and mosquito microbial diversity. Our findings suggest that the environment likely plays an important but variable role in influencing the composition of the mosquito microbiota.
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Pereira-Silva JW, Ríos-Velásquez CM, Lima GRD, Marialva Dos Santos EF, Belchior HCM, Luz SLB, Naveca FG, Pessoa FAC. Distribution and diversity of mosquitoes and Oropouche-like virus infection rates in an Amazonian rural settlement. PLoS One 2021; 16:e0246932. [PMID: 33592052 PMCID: PMC7886159 DOI: 10.1371/journal.pone.0246932] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 01/28/2021] [Indexed: 02/02/2023] Open
Abstract
Mosquito diversity and disease transmission are influenced by landscape modifications, i.e., vectors and pathogens previously found only in forests are now found close to human environments due to anthropic changes. This study determined the diversity and distribution of mosquitoes in forest environments in order to analyze the potential vectors of Amazonian forest arboviruses. Mosquitoes were collected by 1) vertical stratification from forest canopy and ground areas using Hooper Pugedo (HP) light traps and human attraction and 2) horizontal stratification using HP light traps in peridomicile, forest edge, and forest environments near the Rio Pardo rural settlement, Amazonas, Brazil. A total of 3,750 mosquitoes were collected, representing 46 species. 3,139 individuals representing 46 species were sampled by vertical stratification. Both the Shannon-Weaver diversity index (H’) and equitability (J’) were higher in the canopy than on the ground. 611 individuals representing 13 species were sampled by horizontal stratification. H’ decreased in the following order: forest edge > forest > peridomicile, and J’ was greater at the forest edge and smaller in the peridomicile environment. Moreover, H’ was higher for the human attraction collection method than the HP traps. A total of 671 pools were analyzed by RT-qPCR; three species were positive for Oropouche-like viruses (Ochlerotatus serratus, Psorophora cingulata, and Haemagogus tropicalis) and the minimum infection rate was 0.8%. The composition of mosquito species did not differ significantly between anthropic and forest environments in Rio Pardo. Some mosquito species, due to their abundance, dispersion in the three environments, and record of natural infection, were hypothesized to participate in the arbovirus transmission cycle in this Amazonian rural settlement.
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Affiliation(s)
- Jordam William Pereira-Silva
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Condições de Vida e Situações de Saúde na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brasil
| | - Claudia María Ríos-Velásquez
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Condições de Vida e Situações de Saúde na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
| | - Gervilane Ribeiro de Lima
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
| | - Eric Fabrício Marialva Dos Santos
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
| | - Heliana Christy Matos Belchior
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
| | - Sergio Luiz Bessa Luz
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Condições de Vida e Situações de Saúde na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
| | - Felipe Gomes Naveca
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
| | - Felipe Arley Costa Pessoa
- Laboratório Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Condições de Vida e Situações de Saúde na Amazônia, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane-Fiocruz Amazônia, Manaus, Amazonas, Brasil
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Vieira CJDSP, Thies SF, da Silva DJF, Kubiszeski JR, Barreto ES, Monteiro HADO, Mondini A, São Bernardo CS, Bronzoni RVDM. Ecological aspects of potential arbovirus vectors (Diptera: Culicidae) in an urban landscape of Southern Amazon, Brazil. Acta Trop 2020; 202:105276. [PMID: 31751525 DOI: 10.1016/j.actatropica.2019.105276] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/16/2019] [Accepted: 11/16/2019] [Indexed: 01/20/2023]
Abstract
Amazon has been under intense human pressure, especially in the so-called "Arc of Deforestation" in the Eastern and Southern regions. Changes in biodiversity due to landscape disturbance in municipalities at the Arc of Deforestation are likely to impact mosquito species leading to the potential for emergence of arboviruses. Our aim was to describe the composition and structure of culicids in Sinop, a municipality located in the Southern Amazon at the State of Mato Grosso, as well as their presence in urban habitats, analyzing climate variables and potential risk of arbovirus transmission. Mosquitoes were collected in four habitats located in urban environments for 12 months. We recovered 5,210 adult mosquitoes from mosquito traps. Among the 33 species identified, 19 are associated with arbovirus transmission. Higher abundance, richness, diversity, and equitability of mosquito species were observed in urban forest parks and in new neighborhoods located in the outskirts of the city, nearby forest fragments and agricultural areas. As the environment consolidates as urban, both abundance and richness decrease. Highly urbanized neighborhoods had higher dominance of Culex quinquefasciatus, a mosquito associated with different arboviruses, including West Nile and Saint Louis encephalitis virus. The medically important species Cx. declarator, Cx. (Melanoconion) ssp., Aedeomyia squamipennis and Aedes scapularis were found in the four habitats. It is possible that these mosquitoes are adapting to different habitats and as a consequence, they are reaching urbanized areas. Mosquito abundance was higher in the days of high temperature and low precipitation in urban forest parks and in highly urbanized neighborhoods. These results suggest that Sinop region is a key area for surveillance of arbovirus vectors.
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Diallo D, Diagne CT, Buenemann M, Ba Y, Dia I, Faye O, Sall AA, Faye O, Watts DM, Weaver SC, Hanley KA, Diallo M. Biodiversity Pattern of Mosquitoes in Southeastern Senegal, Epidemiological Implication in Arbovirus and Malaria Transmission. JOURNAL OF MEDICAL ENTOMOLOGY 2019; 56:453-463. [PMID: 30428055 PMCID: PMC6941392 DOI: 10.1093/jme/tjy204] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 06/01/2023]
Abstract
The composition, density, diversity, and temporal distribution of mosquito species and the influence of temperature, relative humidity, and rainfall on these data were investigated in 50 sites across five land cover classes (forest, savannah, barren, village, and agriculture) in southeastern Senegal. Mosquitoes were collected monthly in each site between June 2009 and March 2011, with three people collecting mosquitoes landing on their legs for one to four consecutive days. In total, 81,219 specimens, belonging to 60 species and 7 genera, were collected. The most abundant species were Aedes furcifer (Edwards) (Diptera: Culicidae) (20.7%), Ae. vittatus (Bigot) (19.5%), Ae. dalzieli (Theobald) (14.7%), and Ae. luteocephalus (Newstead) (13.7%). Ae. dalzieli, Ae. furcifer, Ae. vittatus, Ae. luteocephalus, Ae. taylori Edwards, Ae. africanus (Theobald), Ae. minutus (Theobald), Anopheles coustani Laveran, Culex quinquefasciatus Say, and Mansonia uniformis (Theobald) comprised ≥10% of the total collection, in at least one land cover. The lowest species richness and Brillouin diversity index (HB = 1.55) were observed in the forest-canopy. The urban-indoor fauna showed the highest dissimilarity with other land covers and was most similar to the urban-outdoor fauna following Jaccard and Morisita index. Mosquito abundance peaked in June and October 2009 and July and October 2010. The highest species density was recorded in October. The maximum temperature was correlated positively with mean temperature and negatively with rainfall and relative humidity. Rainfall showed a positive correlation with mosquito abundance and species density. These data will be useful for understanding the transmission of arboviruses and human malaria in the region.
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Affiliation(s)
- Diawo Diallo
- Unité d’entomologie médicale, Institut Pasteur de Dakar, Dakar, Sénégal
| | - Cheikh T Diagne
- Unité d’entomologie médicale, Institut Pasteur de Dakar, Dakar, Sénégal
| | | | - Yamar Ba
- Unité d’entomologie médicale, Institut Pasteur de Dakar, Dakar, Sénégal
| | - Ibrahima Dia
- Unité d’entomologie médicale, Institut Pasteur de Dakar, Dakar, Sénégal
| | - Oumar Faye
- Pole virologie, Institut Pasteur de Dakar, Sénégal
| | | | - Ousmane Faye
- Pole virologie, Institut Pasteur de Dakar, Sénégal
| | - Douglas M Watts
- Office of Research and Sponsored Projects, University of Texas at El Paso, El Paso, TX
| | - Scott C Weaver
- Institute for Human Infections and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX
| | - Kathryn A Hanley
- Department of Biology, New Mexico State University, Las Cruces, NM
| | - Mawlouth Diallo
- Unité d’entomologie médicale, Institut Pasteur de Dakar, Dakar, Sénégal
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Chaves LF, Hamer GL, Walker ED, Brown WM, Ruiz MO, Kitron UD. Climatic variability and landscape heterogeneity impact urban mosquito diversity and vector abundance and infection. Ecosphere 2011. [DOI: 10.1890/es11-00088.1] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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