Feeding patterns of mosquitoes (Diptera: Culicidae) in six Brazilian environmental preservation areas

Silva, Júlia dos Santos; Alencar, Jerônimo; Costa, Janira Martins; Seixas-Lorosa, Elias; Guimarães, Anthony Érico

doi:10.1111/j.1948-7134.2012.00237.x

Cited by 14 publications

(9 citation statements)

References 25 publications

(45 reference statements)

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“…The predominance of bird blood was observed by dos Santos Silva et al [ 42 ] in all the 15 species of Culicidae obtained, some of them, such as Ae. fulvus , Ae.…”

Section: Discussionmentioning

confidence: 79%

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Feeding habits of mosquitoes (Diptera: Culicidae) in an area of sylvatic transmission of yellow fever in the state of São Paulo, Brazil

Mucci¹,

Júnior²,

Paula³

et al. 2015

J Venom Anim Toxins Incl Trop Dis

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BackgroundThe reintroduction of sylvatic yellow fever in the state of São Paulo after about six decades was confirmed in the Northwestern region in 2000, where in 2008 there also occurred an important epizootic. The purpose of this study was to investigate the feeding habits of culicids potentially involved in the sylvatic transmission of the virus in this region.MethodsSpecimens were collected in 24 forested localities at ground level with hand nets and mouth aspirators. Collections were made quarterly between October 2006 and July 2008 during daylight hours. Blood-meal identification was carried out in mosquitoes of the tribes Aedini, Mansoniini and Sabethini. The biotin/avidin sandwich ELISA was employed to determine six source types: bird, bovine, equine, rat, human and monkey.ResultsA total of 24,879 females of the three tribes were obtained, 245 (0.98%) of which were engorged. The presence of three different blood sources per engorged female was the predominant situation, and included 35.10% of the total of samples processed. Samples with two or four different sources were represented by 25.31% and 25.71%, of the specimens, respectively, while just 9.39% had only one type and 1.22%, five different sources. Aedes scapularis, Ae. serratus (Group), Psorophora albigenu and Ps. ferox were the most abundant species and accounted for about 95% of the engorged specimens. Of the principal vector species, Haemagogus janthinomys/capricornii was found with bird, bovine and primate blood. These sources were predominant and alternated top ranking as the most frequent source according to the mosquito species and collection site. In general, primate blood was the most prevalent source.ConclusionsThe human population of the region visits this ecotone frequently, which indicates the need for the periodical assessment of vaccination coverage against yellow fever. The frequency of non-human primate blood source in mosquito species that show minor vector importance in yellow fever virus transmission deserves attention. The eclectic feeding habits and some aspects of the interactions between potential vectors and reservoirs of yellow fever may be associated with the habitat fragmentation characteristic of the region. We recommend that further studies on the capacity and vector competence be performed on secondary vectors in extra-Amazonian region.Electronic supplementary materialThe online version of this article (doi:10.1186/s40409-015-0005-z) contains supplementary material, which is available to authorized users.

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“…The predominance of bird blood was observed by dos Santos Silva et al [ 42 ] in all the 15 species of Culicidae obtained, some of them, such as Ae. fulvus , Ae.…”

Section: Discussionmentioning

confidence: 79%

“…capricornii in the same condition. Moreover, dos Santos Silva et al [ 42 ] – in six localities situated in units of environmental conservation, distributed in the Atlantic Forest, Pantanal and Cerrado biomes – found 74.7% of the females of 15 different Culicidae species with only one blood source.…”

Section: Discussionmentioning

confidence: 99%

Feeding habits of mosquitoes (Diptera: Culicidae) in an area of sylvatic transmission of yellow fever in the state of São Paulo, Brazil

Mucci¹,

Júnior²,

Paula³

et al. 2015

J Venom Anim Toxins Incl Trop Dis

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“…and in Ae. scapularis in Brazil have shown that these mosquitoes can have ornithophily rates ranging from 20 to 43% [46, 47]. Moreover, Njabo et al [48] described three species of Coquillettidia as putative vectors of avian Plasmodium in Cameroon.…”

Section: Discussionmentioning

confidence: 99%

Searching for putative avian malaria vectors in a Seasonally Dry Tropical Forest in Brazil

et al. 2016

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BackgroundHaemosporidian parasites of the genera Plasmodium and Haemoproteus can have detrimental effects on individual birds and populations. Despite recent investigations into the distribution and richness of these parasites and their vertebrate hosts, little is known about their dipteran vectors. The Neotropics has the highest diversity of mosquitoes in the world, but few studies have tried to identify vectors in this area, hampering the understanding of the ecology of avian malaria in the highly diverse Neotropical environments.MethodsShannon traps and active collection were used to capture 27,110 mosquitoes in a Seasonally Dry Tropical Forest in southeastern Brazil, a highly endangered ecosystem.ResultsWe screened 17,619 mosquito abdomens from 12 different species and several unidentified specimens of Culex, grouped into 1,913 pools, for the presence of haemosporidians. Two pools (out of 459) of the mosquito Mansonia titillans and one pool (out of 29) of Mansonia pseudotitillans were positive for Plasmodium parasites, with the detection of a new parasite lineage in the former species. Detected Plasmodium lineages were distributed in three different clades within the phylogenetic tree revealing that Mansonia mosquitoes are potential vectors of genetically distant parasites. Two pools of Culex spp. (out of 43) were positive for Plasmodium gallinaceum and closely related lineages. We found a higher abundance of these putative vectors in pasture areas, but they were also distributed in areas at intermediate and late successional stages. One pool of the mosquito Psorophora discrucians (out of 173) was positive for Haemoproteus.ConclusionsThe occurrence of different Plasmodium lineages in Mansonia mosquitoes indicates that this genus encompasses potential vectors of avian malaria parasites in Brazil, even though we did not find positive thoraces among the samples tested. Additional evidence is required to assign the role of Mansonia mosquitoes in avian malaria transmission and further studies will add information about evolutionary and ecological aspects of avian haemosporidia and untangle the diversity of their vectors in Brazil.

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“…14 Eclectic feeding behavior of Ps. albigenu has been reported in forest-protected areas of Brazil, 15,16 suggesting Ps. albigenu feeding preference was based on host availability.…”

Section: Mammalmentioning

confidence: 97%

Identification of Blood Meals from Potential Arbovirus Mosquito Vectors in the Peruvian Amazon Basin

Palermo

Aguilar

Sánchez

et al. 2016

The American Journal of Tropical Medicine and Hygiene

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The transmission dynamics of many arboviruses in the Amazon Basin region have not been fully elucidated, including the vectors and natural reservoir hosts. Identification of blood meal sources in field-caught mosquitoes could yield information for identifying potential arbovirus vertebrate hosts. We identified blood meal sources in 131 mosquitoes collected from areas endemic for arboviruses in the Peruvian Department of Loreto by sequencing polymerase chain reaction amplicons of the cytochrome b gene. Psorophora (Janthinosoma) albigenu, Psorophora (Grabhamia) cingulata, Mansonia humeralis, Anopheles oswaldoi s.l., and Anopheles benarrochi s.l. had mainly anthropophilic feeding preferences; Aedes (Ochlerotatus) serratus, and Aedes (Ochlerotatus) fulvus had feeding preferences for peridomestic animals; and Culex (Melanoconion) spp. fed on a variety of vertebrates, mainly rodents (spiny rats), birds, and amphibians. On the basis of these feeding preferences, many mosquitoes could be considered as potential enzootic and bridge arbovirus vectors in the Amazon Basin of Peru.

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Feeding patterns of mosquitoes (Diptera: Culicidae) in six Brazilian environmental preservation areas

Cited by 14 publications

References 25 publications

Feeding habits of mosquitoes (Diptera: Culicidae) in an area of sylvatic transmission of yellow fever in the state of São Paulo, Brazil

Feeding habits of mosquitoes (Diptera: Culicidae) in an area of sylvatic transmission of yellow fever in the state of São Paulo, Brazil

Searching for putative avian malaria vectors in a Seasonally Dry Tropical Forest in Brazil

Identification of Blood Meals from Potential Arbovirus Mosquito Vectors in the Peruvian Amazon Basin

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