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interactive effects of 1-octen-3-ol and carbon dioxide on mosquito (diptera: culicidae) surveillance and control.responses of natural populations of biting diptera were studied at everglades national park, fla., to three levels (0, 3.0, and 41.1 mg/h) of 1-octen-3-ol (octenol), four levels (0, 20, 200, and 2,000 ml/min) of carbon dioxide (co2), and their combinations. catches of mosquitoes (aedes taeniorhynchus (wiedemann), culex [melanoconion]) spp., cx. nigripalpus theobald, and wyeomyia spp.) and one tabanid (diachlorus ferrugatus (f.)) were affected significantly by co2 and octenol. significantly great ...19991905355
the secretion of hyperosmotic fluid by the rectum of a saline-water mosquito larva, aedes taeniorhynchus.1. fourth-instar larvae of the mosquito a. taeniorhynchus (wiedemann), when living in sea water, drink at a rate of 100 nl h(-1) larva(-1) and maintain ionic and osmotic levels in the haemolymph at about one-third those of the external medium. 2. hyperosmotic urine is produced in the rectum by secretion of fluid having an osmotic concentration and ionic composition similar to that of sea water, with the exception that potassium levels are elevated 18-fold in the secretion. the average rate of fl ...19831202126
transcellular and paracellular pathways of transepithelial fluid secretion in malpighian (renal) tubules of the yellow fever mosquito aedes aegypti.isolated malpighian tubules of the yellow fever mosquito secrete nacl and kcl from the peritubular bath to the tubule lumen via active transport of na(+) and k(+) by principal cells. lumen-positive transepithelial voltages are the result. the counter-ion cl(-) follows passively by electrodiffusion through the paracellular pathway. water follows by osmosis, but specific routes for water across the epithelium are unknown. remarkably, the transepithelial secretion of nacl, kcl and water is driven b ...201020946239
physiological and pharmacological characterizations of the larval anopheles albimanus rectum support a change in protein distribution and/or function in varying salinities.ion regulation is a biological process crucial to the survival of mosquito larvae and a major organ responsible for this regulation is the rectum. the recta of anopheline larvae are distinct from other subfamilies of mosquitoes in several ways, yet have not yet been characterized extensively. here we characterize the two major cell types of the anopheline rectum, dar and non-dar cells, using histological, physiological, and pharmacological analyses. proton flux was measured at the basal membrane ...201020460167
poxvirus protein evolution: family wide assessment of possible horizontal gene transfer events.to investigate the evolutionary origins of proteins encoded by the poxviridae family of viruses, we examined all poxvirus protein coding genes using a method of characterizing and visualizing the similarity between these proteins and taxonomic subsets of proteins in genbank. our analysis divides poxvirus proteins into categories based on their relative degree of similarity to two different taxonomic subsets of proteins such as all eukaryote vs. all virus (except poxvirus) proteins. as an example ...200919464330
phylogenetic evidence for extensive lateral acquisition of cellular genes by nucleocytoplasmic large dna viruses.nucleo-cytoplasmic large dna viruses (ncldv), a diverse group that infects a wide range of eukaryotic hosts, exhibit a large heterogeneity in genome size (between 100 kb and 1.2 mb) but have been suggested to form a monophyletic group on the basis of a small subset of approximately 30 conserved genes. ncldv were proposed to have evolved by simplification from cellular organism although some of the giant ncldv have clearly grown by gene accretion from a bacterial origin.200819036122
characterization of a juvenile hormone-regulated chymotrypsin-like serine protease gene in aedes aegypti mosquito.after female mosquitoes ingest blood from vertebrate hosts, exopeptidases and endopeptidases are required for digesting blood proteins in the midgut into amino acids, which female mosquitoes use to build yolk proteins. these proteases are not always present in the midgut, and their diverse expression patterns suggest that production of these enzymes is highly regulated in order to meet specific physiological demands at various stages. here we report identification of a serine-type protease, jha1 ...200718207080
pathogenicity tests on nine mosquito species and several non-target organisms with strelkovimermis spiculatus (nemata mermithidae).nine species of mosquitoes and several species of non-target aquatic organisms were tested for susceptibility to the mernaithid nematode, strelkovimermis spiculatus. all species of anopheles, aedes, culex, and toxorhynchites exposed to s. spiculatus were susceptible. of the nine mosquito species tested, c. pipiens quinquefasciatus had the greatest tolerance to initial invasion and the highest percent infection of those that survived. high levels of infection were also achieved with aedes taenior ...019274233
pathway of infection of mosquito iridescent virus. i. preliminary observations on the fate of ingested virus.mosquito iridescent virus (miv) is ingested in large amounts by first- and second-instar aedes taeniorhynchus larvae without causing a high rate of infection. electron microscope studies have been undertaken to determine the fate of ingested virus. preliminary observations suggest that most, if not all, ingested particles are degraded shortly after entering the midgut. miv and other virus particles employed in this study were apparently unable to penetrate the peritrophic membrane; consequently, ...04152171
seasonality, prevalence and pathogenicity of the gregarine ascogregarina taiwanensis (apicomplexa: lecudinidae) in mosquitoes from florida.aedes albopictus larvae collected in gainesville, fl, were infected with the gregarine ascogregarina taiwanensis. natural prevalence varied from 68 to 100%. eight mosquito species were tested in the laboratory for susceptibility to a. taiwanensis isolated from field-collected ae. albopictus. aedes aegypti, aedes albopictus, and aedes taeniorhynchus became 100% infected in the larval stage, whereas aedes triseriatus was less susceptible; culex quinquefasciatus, culex nigripalpus, culex territans, ...19947807086
a mosquito survey of the twin-island caribbean nation of saint kitts and nevis, 2010.adult mosquito surveys of saint kitts and nevis (skn) were performed in the dry season (march 16-23, 2010) in saint kitts, and the rainy season (october 18-25, 2010) in skn. biogents (bg) sentinel traps were set with co₂and bg lure in urban, rural, mangrove, and dry forest habitats. mosquitoes were identified to species, and reverse transcription-polymerase chain reaction was performed on potential vector species for dengue virus (denv), chikungunya virus (chikv), and west nile virus (wnv). the ...201526675458
non-human primate antibody response to mosquito salivary proteins: implications for dengue virus transmission in puerto rico.an important step to incriminate a mosquito as a vector of a disease pathogen is finding evidence of direct contact between the mosquito and humans. typically, this is accomplished through landing/biting catches, or host blood meal analysis in engorged mosquitoes via immunologic assays. an alternate approach is to identify the presence of specific mosquito anti-saliva protein antibodies in the blood of exposed hosts. following the discovery of dengue infected, free roaming non-human primates in ...201627593498
experimental laboratory infection of mosquito larvae with fungi of the genus coelomomyces. 1. experiments with coelomomyces psorophorae var. in aedes taeniorhynchus and coelomomyces psorophorae var. in culiseta inornata. 1986239068
zika virus vector competency of mosquitoes, gulf coast, united states.zika virus has recently spread throughout the americas. although aedes aegypti mosquitoes are considered the primary vector, culex quinquefasciatus and mosquitoes of other species may also be vectors. we tested cx. quinquefasciatus and ae. taeniorhynchus mosquitoes from the us gulf coast; both were refractory to infection and incapable of transmission.201728005002
first record of anopheles albimanus from st kitts.previous mosquito surveys performed in the federation of st kitts and nevis identified anopheles albimanus in nevis but there is no recorded occurrence of this mosquito in st kitts. to determine the presence of this and other species in st kitts and nevis, a mosquito survey was conducted.201122519234
[seasonal and time dynamics of aedes aegypti (diptera: culicidae) in cienfuegos municipality].dengue is one of the most important vector-borne diseases in las americas due, among other factors, to the increase of aedes aegypti populations.201323431620
secretion of water and ions by malpighian tubules of larval mosquitoes: effects of diuretic factors, second messengers, and salinity.the effects of changes in the salinity of the rearing medium on malpighian tubule fluid secretion and ion transport were examined in larvae of the freshwater mosquito aedes aegypti and the saltwater species ochlerotatus taeniorhynchus. for unstimulated tubules of both species, the k(+) concentration of secreted fluid was significantly lower when larvae were reared in 30% or 100% seawater (o. taeniorhynchus only), relative to tubules from freshwater-reared larvae. the na(+) concentration of secre ...201316691529
carbonic anhydrase in the adult mosquito midgut.we have previously demonstrated the involvement of carbonic anhydrase (ca) in larval mosquito midgut physiology. in this study, we used hansson's histochemistry to examine the distribution of the enzyme in the midgut of aedes aegypti, aedes albopictus, culex quinquefasciatus, culex nigripalpus, ochlerotatus taeniorhynchus, anopheles albimanus and anopheles quadrimaculatus adult mosquitoes. additionally, we quantitated ca content in the anterior and posterior midgut of adult males and females fro ...200516109888
alkalization of larval mosquito midgut and the role of carbonic anhydrase in different species of mosquitoes.we have previously demonstrated the involvement of carbonic anhydrase (ca) in the alkalization mechanism of the aedes aegypti larval midgut. in this study, we used hansson's histochemistry to examine the distribution of the enzyme in the midgut of six different species of mosquito larvae (aedes aegypti, aedes albopictus, culex quinquefasciatus, culex nigripalpus, ochlerotatus taeniorhynchus, anopheles quadrimaculatus). additionally, we quantitated ca content in the gastric caeca, anterior and po ...200415171946
ph tolerances and regulatory abilities of freshwater and euryhaline aedine mosquito larvae.the ph regulatory abilities of two members of the mosquito tribe aedini, known to have dramatically different saline tolerances, are investigated. the freshwater mosquito aedes aegypti and the euryhaline ochlerotatus taeniorhynchus tolerate very similar ph ranges. both species complete larval development in waters ranging from ph 4 to ph 11, but naïve larvae always die in water of ph 3 or 12. across the ph range 4-11, the hemolymph ph of o. taeniorhynchus is maintained constant while that of a. ...200415159434
differences in the effects of salinity on larval growth and developmental programs of a freshwater and a euryhaline mosquito species (insecta: diptera, culicidae).the effects of salinity on growth and development of the euryhaline ochlerotatus taeniorhynchus and the freshwater aedes aegypti are compared. o. taeniorhynchus grow larger, and have greater intrinsic growth rates, than a. aegypti. females of each species attain greater mass, take longer to develop, and have greater growth rates than do males. in o. taeniorhynchus, pupal mass, larval stage duration and growth rates (dry mass) increase with salinity, whereas growth rates (wet mass) remain constan ...200415159433
biochemical and cytoimmunological evidence for the control of aedes aegypti larval trypsin with aea-tmof.trypsin and chymotrypsin-like enzymes were detected in the gut of aedes aegypti in the four larval instar and pupal developmental stages. although overall the amount of trypsin synthesized in the larval gut was 2-fold higher than chymotrypsin, both enzymes are important in food digestion. feeding aea-trypsin modulating oostatic factor (tmof) to ae. aegypti and culex quinquefasciatus larvae inhibited trypsin biosynthesis in the larval gut, stunted larval growth and development, and caused mortali ...200414981657
effectiveness and residual activity comparison of granular formulations of insect growth regulators pyriproxyfen and s-methoprene against florida mosquitoes in laboratory and outdoor conditions.effectiveness and residual activity tests of granular formulations of 2 insect growth regulators (igrs), s-methoprene and pyriproxyfen, against laboratory-reared larvae of 5 colonized mosquitoes, aedes aegypti, aedes albopictus, aedes taeniorhynchus, anopheles quadrimaculatus, and culex nigripalpus, were conducted in the laboratory and outdoors in plastic tubs. culex quinquefasciatus was exposed to these two igrs in the laboratory only. each igr formulation was applied at 0.02 and 0.05 ppm activ ...200212322941
mosquito vector control and biology in latin america--a twelfth symposium. denver, colorado, february 2002. summaries.the 12th annual latin american symposium presented by the american mosquito control association (amca) was held as part of the 68th annual meeting in denver, co, in february 2002. the principal objective, as for the previous 11 symposia, was to promote participation in the amca by vector control specialists, public health workers, and academicians from latin america. this publication includes summaries of 35 presentations that were given orally in spanish or presented as posters by participants ...200212322934
evaluation of various models of propane-powered mosquito traps.large cage and field studies were conducted to determine the efficacy of various models of propane-powered mosquito traps. these traps utilized counterflow technology in conjunction with catalytic combustion to produce attractants (carbon dioxide, water vapor, and heat) and a thermoelectric generator that converted excess heat into electricity for stand-alone operation. the cage studies showed that large numbers of aedes aegypti and ochlerotatus taeniorhynchus were captured and that each progres ...200212125861
survey of container-breeding mosquitoes from the florida keys, monroe county, florida.a survey of container-breeding mosquitoes was conducted on urban islands (big coppitt key, rockland key, key west, and stock island) and rural islands (big pine key, cudjoe key, little torch key, no name key, ramrod key, saddlebunch keys, sugarloaf key, and summerland key) within the florida keys. five mosquito species were collected: aedes aegypti, culex nigripalpus, cx. quinquefasciatus, cx. salinarius, and ochlerotatus taeniorhynchus. plastic buckets, trash cans, and discarded plastic contain ...200111804461
responses of male and female mosquitoes to repellents in the world health organization insecticide irritability test system.a study was conducted to compare responses of male and female aedes aegypti (linn.) and aedes taeniorhynchus (wiedemann) to 9 olfactory repellents in the world health organization insecticide irritability test system. an irritant insecticide (permethrin) and a control were included for comparison. aedes aegypti exhibited significantly more takeoffs than ae. taeniorhynchus, and female mosquitoes exhibited significantly more takeoffs than males. permethrin induced significantly more takeoffs than ...199910342270
electrophysiological responses of receptor neurons in mosquito maxillary palp sensilla to carbon dioxide.sensilla basiconica on the maxillary palps of female aedes aegypti contain a receptor neuron which produces a phasic-tonic pattern of action potential response to low concentrations (150-300 ppm) of carbon dioxide (co2), a stimulus known to be involved with host seeking behavior. these receptor neurons respond reliably to small increments in co2 concentration (e.g., 50 ppm). we were particularly interested in evaluating the possibility that the sensitivity to step increases in co2 concentration ...19957674195
pathology of mosquito iridescent virus of aedes taeniorhynchus in cell cultures of aedes aegypti. 19761245745
bioassay of mosquito iridescent virus of aedes taeniorhynchus in cell cultures of aedes aegypti. 19751159310
geostatistical evaluation of integrated marsh management impact on mosquito vectors using before-after-control-impact (baci) design.in many parts of the world, salt marshes play a key ecological role as the interface between the marine and the terrestrial environments. salt marshes are also exceedingly important for public health as larval habitat for mosquitoes that are vectors of disease and significant biting pests. although grid ditching and pesticides have been effective in salt marsh mosquito control, marsh degradation and other environmental considerations compel a different approach. targeted habitat modification and ...200919549297
mosquito fauna of wilderness islands within the national key deer refuge and the great white heron national wildlife refuge, monroe county, florida.dry ice-baited light traps, counts of mosquitoes biting and landing on technicians, and larval surveillance were used to determine mosquito species abundance on annette key, little knockem-down key, little pine key, raccoon key, and the water keys, all of which are located offshore, within the national key deer refuge and great white heron national wildlife refuge in monroe county, fl. due to the close proximity of these wilderness islands to the inhabited islands of the florida keys, it is impo ...201020649123
genetic and anatomic determinants of enzootic venezuelan equine encephalitis virus infection of culex (melanoconion) taeniopus.venezuelan equine encephalitis (vee) is a re-emerging, mosquito-borne viral disease with the potential to cause fatal encephalitis in both humans and equids. recently, detection of endemic vee caused by enzootic strains has escalated in mexico, peru, bolivia, colombia and ecuador, emphasizing the importance of understanding the enzootic transmission cycle of the etiologic agent, vee virus (veev). the majority of work examining the viral determinants of vector infection has been performed in the ...201222509419
quantification of intrahost bottlenecks of west nile virus in culex pipiens mosquitoes using an artificial mutant swarm.mosquito-borne viruses are predominantly rna viruses which exist within hosts as diverse mutant swarms. defining the way in which stochastic forces within mosquito vectors shape these swarms is critical to advancing our understanding of the evolutionary and adaptive potential of these pathogens. there are multiple barriers within a mosquito which a viral swarm must traverse in order to ultimately be transmitted. here, using artificial mutant swarms composed of neutral variants of west nile virus ...201222326536
the evolution of viral emergence. 200616567658
rna viruses can hijack vertebrate micrornas to suppress innate immunity.currently, there is little evidence for a notable role of the vertebrate microrna (mirna) system in the pathogenesis of rna viruses. this is primarily attributed to the ease with which these viruses mutate to disrupt recognition and growth suppression by host mirnas. here we report that the haematopoietic-cell-specific mirna mir-142-3p potently restricts the replication of the mosquito-borne north american eastern equine encephalitis virus in myeloid-lineage cells by binding to sites in the 3' n ...201324352241
ecological correlates of microfilariae prevalence in endangered galápagos birds.this study assesses the ecological factors associated with microfilariae prevalence in wild populations of endangered flightless cormorants (phalacrocorax harrisi) and galápagos penguins (spheniscus mendiculus). prevalence values were tested for correlation with a large number of environmental variables, as modeled from weather station data and measured by satellite-borne sensors. predictions were made based on the expected effects of climatic and landscape variables on sustained populations of ...201019954259
emergence of zoonotic arboviruses by animal trade and migration.abstract: arboviruses are transmitted in nature exclusively or to a major extend by arthropods. they belong to the most important viruses invading new areas in the world and their occurrence is strongly influenced by climatic changes due to the life cycle of the transmitting vectors. several arboviruses have emerged in new regions of the world during the last years, like west nile virus (wnv) in the americas, usutu virus (usuv) in central europe, or rift valley fever virus (rvfv) in the arabian ...201020377873
evolution of dna ligases of nucleo-cytoplasmic large dna viruses of eukaryotes: a case of hidden complexity.eukaryotic nucleo-cytoplasmic large dna viruses (ncldv) encode most if not all of the enzymes involved in their dna replication. it has been inferred that genes for these enzymes were already present in the last common ancestor of the ncldv. however, the details of the evolution of these genes that bear on the complexity of the putative ancestral ncldv and on the evolutionary relationships between viruses and their hosts are not well understood.200920021668
biting midges of the genus culicoides in south carolina zoos.biting midges of the genus culicoides (diptera: ceratopogonidae) were collected during the summer of 2007 at the greenville and riverbanks zoos in south carolina with centers for disease control and prevention (cdc) traps equipped with ultraviolet or incandescent lights and baited with carbon dioxide. sixteen species of culicoides were collected, four of which represented more than 80%. they were culicoides guttipennis (coquillett), culicoides mulrenanni beck, culicoides obsoletus (meigen), and ...201020569132
seasonal and diel patterns of biting midges (ceratopogonidae) and mosquitoes (culicidae) on the parris island marine corps recruit depot.the marine corps recruit depot on parris island, sc, is surrounded by tidal salt marshes, which are breeding habitats for many pestiferous biting flies. knowledge of biting fly behavior patterns is needed to develop effective pest management strategies in urban areas adjacent to salt marshes. we measured biting midge (ceratopogonidae) and mosquito (culicidae) seasonal abundance and diel activity patterns on parris island using co(2)-baited suction traps from november 2001 - november 2004. of the ...200920836813
comparing aedes vigilax eggshell densities in saltmarsh and mangrove systems with implications for management.aedes vigilax (skuse), a nuisance and disease vector, is prolific in intertidal wetlands in australia. aedine mosquitoes oviposit directly onto substrate. the eggshells are relatively stable spatially and temporally, providing an estimate of mosquito larval production. the aims of the research were to compare, at a general level, oviposition in mangroves and saltmarshes, and to compare oviposition between different habitats within mangroves and saltmarshes. the results indicated that there were ...201426462954
zoonotic encephalitides caused by arboviruses: transmission and epidemiology of alphaviruses and flaviviruses.in this review, we mainly focus on zoonotic encephalitides caused by arthropod-borne viruses (arboviruses) of the families flaviviridae (genus flavivirus) and togaviridae (genus alphavirus) that are important in both humans and domestic animals. specifically, we will focus on alphaviruses (eastern equine encephalitis virus, western equine encephalitis virus, venezuelan equine encephalitis virus) and flaviviruses (japanese encephalitis virus and west nile virus). most of these viruses were origin ...201324427764
dogs, cats, parasites, and humans in brazil: opening the black box.dogs and cats in brazil serve as primary hosts for a considerable number of parasites, which may affect their health and wellbeing. these may include endoparasites (e.g., protozoa, cestodes, trematodes, and nematodes) and ectoparasites (i.e., fleas, lice, mites, and ticks). while some dog and cat parasites are highly host-specific (e.g., aelurostrongylus abstrusus and felicola subrostratus for cats, and angiostrongylus vasorum and trichodectes canis for dogs), others may easily switch to other h ...201424423244
diagnostic dose of synergized d-phenothrin for insecticide susceptibility testing by bottle bioassay.the diagnostic dose of d-phenothrin synergized 1:1 with piperonyl butoxide for testing insecticide susceptibility of mosquitoes by bottle bioassay is reported for 2 mosquito species, culex quinquefasciatus and ochlerotatus taeniorhynchus. the diagnostic dose was defined as 2 times the 95% lethal concentration (lc95). lc50, lc90, and lc95 were estimated by probit analysis of dose response data. procedures for diluting the commercial-grade off-the-shelf pesticide in acetone, treating the bottles, ...200415264629
the epidemiology of rift valley fever in mayotte: insights and perspectives from 11 years of data.rift valley fever (rvf) is a zoonotic arboviral disease that is a threat to human health, animal health and production, mainly in sub-saharan africa. rvf virus dynamics have been poorly studied due to data scarcity. on the island of mayotte in the indian ocean, off the southeastern african coast, rvf has been present since at least 2004. several retrospective and prospective serological surveys in livestock have been conducted over eleven years (2004-15). these data are collated and presented he ...201627331402
systematic revision of the adeleid haemogregarines, with creation of bartazoon n. g., reassignment of hepatozoon argantis garnham, 1954 to hemolivia, and molecular data on hemolivia stellata.life cycles and molecular data for terrestrial haemogregarines are reviewed in this article. collection material was re-examined: hepatozoon argantis garnham, 1954 in argas brumpti was reassigned to hemolivia as hemolivia argantis (garnham, 1954) n. comb.; parasite dna was extracted from a tick crush on smear of an archived slide of hemolivia stellata in amblyomma rotondatum, then the 18s ssrrna gene was amplified by pcr. a systematic revision of the group is proposed, based on biological life c ...201526551414
genetic analysis of scattered populations of the indian eri silkworm, samia cynthia ricini donovan: differentiation of subpopulations.deforestation and exploitation has led to the fragmentation of habitats and scattering of populations of the economically important eri silkworm, samia cynthia ricini, in north-east india. genetic analysis of 15 eri populations, using issr markers, showed 98% inter-population, and 23% to 58% intra-population polymorphism. nei's genetic distance between populations increased significantly with altitude (r(2) = 0.71) and geographic distance (r(2) = 0.78). on the dendrogram, the lower and upper ass ...201121931526
the giant cafeteria roenbergensis virus that infects a widespread marine phagocytic protist is a new member of the fourth domain of life.a recent work has provided strong arguments in favor of a fourth domain of life composed of nucleo-cytoplasmic large dna viruses (ncldvs). this hypothesis was supported by phylogenetic and phyletic analyses based on a common set of proteins conserved in eukarya, archaea, bacteria, and viruses, and implicated in the functions of information storage and processing. recently, the genome of a new ncldv, cafeteria roenbergensis virus (crov), was released. the present work aimed to determine if crov s ...201121559486
[do some conditions contribute to the reemergence of the venezuelan equine encephalitis virus in the colombian alta guajira?].in the last 18 years, epizootics of venezuelan equine encephalitis have not occurred in places with historic epidemic register (1925-1995) in the guajira peninsula, colombia.201526148035
field evaluation of the off! clip-on mosquito repellent (metofluthrin) against aedes albopictus and aedes taeniorhynchus (diptera: culicidae) in northeastern florida.repellent efficacy of the off! clip-on mosquito repellent device (s. c. johnson and son, inc., racine, wi) containing metofluthrin was evaluated on six human volunteers against the container-breeding mosquito aedes albopictus (skuse) and the salt marsh mosquito aedes taeniorhynchus (wiedemann) at two field locations in northeastern florida. the device repelled mosquitoes by releasing a vaporized form of the pyrethroid insecticide metofluthrin ([ai] 31.2%) and provided 70% protection from ae. alb ...201222679874
relative abundance of mosquito species (diptera: culicidae) on big pine key, florida, u.s.a.species diversity of mosquito (diptera: culicidae) collections in carbon dioxide-baited light traps was investigated on big pine key, florida, from 2000 - 2004. twenty species of mosquitoes were collected during this study, the most commonly collected being anopheles atropos, culex bahamensis, deinocerites cancer, and ochlerotatus taeniorhynchus. ochlerotatus taeniorhynchus is the dominant species at this location. for most of the mosquito species, more individuals were collected during the "hig ...200516599171
personal protection afforded by controlled-release topical repellents and permethrin-treated clothing against natural populations of aedes taeniorhynchus.field tests evaluated repellent formulations containing deet in combination with permethrin-impregnated or untreated military uniforms against aedes taeniorhynchus. no significant difference was determined between repellents in duration of protection whether or not permethrin-treated clothing was worn, but there were differences in efficacy relative to site of application. the head was the site of shorter duration of protection regardless of repellent tested. on repellent-treated skin, 12-30% of ...20092708993
the distribution of mosquitoes across an altitudinal gradient in the galapagos islands.an avian malaria parasite (genus plasmodium) has been detected consistently in the galapagos penguin (spheniscus mendiculus) and less frequently in some passerines. we sampled three resident mosquito species (aedes taeniorhynchus, culex quinquefasciatus, and aedes aegypti) using cdc light and gravid traps on three islands in 2012, 2013, and 2014. we sampled along altitudinal gradients to ask whether there are mosquito-free refugia at higher elevations as there are in hawaii. we captured both ae. ...201729125252
ineffectiveness of mass trapping for mosquito control in st. andrews state park, panama city beach, florida.abstract. mass trapping with multiple co2- and octenol-supplemented mosquito magnet x traps (mm-x), operated 24 h/day, 7 days/wk, from march through november 2008, at st. andrews state park on northwest florida's gulf coast, did not significantly reduce mosquito numbers compared to nontreated control sites. anopheles crucians, aedes taeniorhynchus, culex salinarius, and culex erraticus were the predominant species. culex coronator was also collected for the first time in the park. failure to red ...201020402350
comparison of two american biophysics mosquito traps: the professional and a new counterflow geometry trap.large cage and field studies were conducted to compare the efficacy of 2 american biophysics corporation mosquito traps, the standard professional (pro) trap and a new counterflow geometry (cfg) trap. the pro trap utilizes conventional downdraft technology and the cfg trap uses a patent-pending technology. in large cage studies, similarly baited cfg traps captured approximately 1.7 times as many laboratory-reared aedes taeniorhynchus as the pro trap. the cfg trap baited with co2 + octenol result ...199910480115
adult body size and parity in field populations of the mosquitoes anopheles crucians, aedes taeniorhynchus and aedes sollicitans. 19873504950
susceptibility of adult mosquitoes to insecticides in aqueous sucrose baits.mosquitoes characteristically feed on plant-derived carbohydrates and honeydew just after emergence and intermittently during their lives. development of toxic baits focusing on this carbohydrate-seeking behavior may potentially contribute to localized control. in the present study, ten insecticides were fed to female culex quinquefasciatus, anopheles quadrimaculatus, and aedes taeniorhynchus in a 10% sucrose solution. active ingredients representative of five classes of insecticides (pyrethroid ...201121635642
the risk of rift valley fever virus introduction and establishment in the united states and european union.rift valley fever virus (rvfv) is an arthropod-borne disease resulting in severe morbidity and mortality in both human and ruminant populations. first identified in kenya in 1930, the geographical range of rvfv has been largely constrained to the african continent, yet has recently spread to new regions, and is identified as a priority disease with potential for geographic emergence. we present a systematic literature review assessing the potential for rvfv introduction and establishment in the ...201326038446
temperature-sensitive mutations for live-attenuated rift valley fever vaccines: implications from other rna viruses.rift valley fever (rvf) is a mosquito-borne zoonotic disease endemic to the african continent. rvf is characterized by high rate of abortions in ruminants and hemorrhagic fever, encephalitis, or blindness in humans. rvf is caused by the rift valley fever virus (rvfv: genus phlebovirus, family bunyaviridae). vaccination is the only known effective strategy to prevent the disease, but there are no licensed rvf vaccines available for humans. a live-attenuated vaccine candidate derived from the wild ...201526322023
modeling dynamics of culex pipiens complex populations and assessing abatement strategies for west nile virus.the primary mosquito species associated with underground stormwater systems in the united states are the culex pipiens complex species. this group represents important vectors of west nile virus (wnv) throughout regions of the continental u.s. in this study, we designed a mathematical model and compared it with surveillance data for the cx. pipiens complex collected in beaufort county, south carolina. based on the best fit of the model to the data, we estimated parameters associated with the eff ...201425268229
efficacy of dibrom, trumpet, and scourge against four mosquito species in louisiana.adult mortality of anopheles quadrimaculatus, culex quinquefasciatus, and the aedes spp. complex (aedes sollicitans and aedes taeniorhynchus) was observed after aerial ultra-low volume (ulv) exposure to dibrom, trumpet, and scourge. dibrom was applied at 112 g active ingredient (ai)/ha, trumpet at 112 g ai/ha, and scourge at 1.96 g ai/ha. at all time intervals, dibrom and trumpet were significantly more effective against the aedes spp. complex than against an. quadrimaculatus and cx. quinquefasc ...199910612604
repellency of two controlled-release formulations of deet against anopheles quadrimaculatus and aedes taeniorhynchus mosquitoes.two experimental controlled-release repellent formulations containing 35% (3m) and 44% (biotek) deet, respectively, were compared with a 75% standard formulation of deet used by the military. the military repellent was equal to or significantly better than the formulations in duration of protection against 2 mosquito species in laboratory and field tests, but the formulations contained only 47-59% the amount of deet in the military repellent. in all cases high levels of protection (greater than ...19892708995
aedes taeniorhynchus (diptera: culicidae) oviposition patterns in a florida mangrove forest.the association of aedes taeniorhynchus eggs and several variables was studied in a florida mangrove forest. eggs were limited to stands of red mangrove (rhizophora mangle l.) that were embedded within a black mangrove (avicennia germinans l.) forest. the occurrence of eggs was related significantly to elevation and the amount of detritus. field and laboratory studies indicated that grazing on black mangrove detritus by the snail melampus coffeus l. may have limited detritus accumulation and soi ...19911941908
evaluation of temephos formulations against aedes taeniorhynchus larvae.four commercially available temephos formulations (abate 4e, clarke 1% skeeter abate [1% sa], abate 2-bg, and abate 5-bg) were evaluated against 3rd instars of aedes taeniorhynchus in laboratory beaker tests and small field test plots. abate 4e liquid formulation was effective in both the laboratory and plot tests. 1% sa and abate 5-bg were more effective in the small field test plots than abate 2-bg.200919653508
a simulation model of water depth in mangrove basin forests.the construction and validation of a model simulating the water depth within mangrove basin forests is described. rainfall, water table, water depth and tide data collected from a red mangrove basin forest on marco island, fl, was used to estimate model parameters. these included the basin spillover height, evapotranspiration-infiltration rate and the functional relationship of water depth change to rainfall, tide and basin spillover. the model was constructed with lotus 123 and calibrated from ...19902370528
conditioning individual mosquitoes to an odor: sex, source, and time.olfactory conditioning of mosquitoes may have important implications for vector-pathogen-host dynamics. if mosquitoes learn about specific host attributes associated with pathogen infection, it may help to explain the heterogeneity of biting and disease patterns observed in the field. sugar-feeding is a requirement for survival in both male and female mosquitoes. it provides a starting point for learning research in mosquitoes that avoids the confounding factors associated with the observer bein ...201121887384
field tests of malathion and permethrin applied via a truck-mounted cold fogger to both open and vegetated habitats.field tests of formulated permethrin (permanone 30:30) and malathion applied by ground ultra-low volume equipment were conducted using caged, laboratory-reared, adult ochlerotatus taeniorhynchus. cages were placed in an open field and also in semi-dense scrub pine. two doses, a high and a medium dose of each compound, were applied as suggested by the label. regardless of application rate, neither chemical provided satisfactory control under the canopy. the average mortality count at the open sit ...200717536368
interisland dispersal of the black salt marsh mosquito, ochlerotatus taeniorhynchus (diptera: culicidae) in the florida keys.mark-release-recapture experiments were conducted in 2001 and 2002 to determine whether ochlerotatus taeniorhynchus, black salt marsh mosquitoes, were dispersing from uninhabited islands in the key deer national wildlife refuge to inhabited islands within monroe county, florida. an estimated 1,658,000 mosquitoes were marked during 2001, and an estimated 300,000 mosquitoes were marked during 2002. recapture rates were 0.0061% and 0.0117%, respectively. oc. taeniorhynchus disperse from uninhabited ...200617304926
freshwater biodiversity and aquatic insect diversification.inland waters cover less than 1% of earth's surface but harbor more than 6% of all insect species: nearly 100,000 species from 12 orders spend one or more life stages in freshwater. little is known about how this remarkable diversity arose, although allopatric speciation and ecological adaptation are thought to be primary mechanisms. freshwater habitats are highly susceptible to environmental change and exhibit marked ecological gradients. standing waters appear to harbor more dispersive species ...201324160433
comparison of the synthetic pyrethroids esbiothrin and bioresmethrin with scourge and cythion against adult mosquitoes in a laboratory wind tunnel.both candidate adulticides, esbiothrin and bioresmethrin, exhibited quick knockdown 1-h posttreatment. esbiothrin elicited the fastest knockdown, but bioresmethrin was more effective at both 1- and 24-h posttreatment than either esbiothrin or scourge against both aedes taeniorhynchus and culex quinquefasciatus. mosquitoes treated with scourge required more time and a higher dosage to respond in a physiological manner similar to those treated with either of the candidate adulticides. more than tw ...19921583490
the killifish rivulus marmoratus: a potential biocontrol agent for aedes taeniorhynchus and brackish water culex.in the laboratory, newly hatched fry of rivulus marmoratus were effective predators on 1st-instar aedes taeniorhynchus. adult fish consumed 4th-instar ae. taeniorhynchus and egg rafts of culex quinquefasciatus at a rate increasing with standard length of the fish. predation of rivulus marmoratus on ae. taeniorhynchus larvae in the field was documented by observing the passage of larval/pupal remains through the gut. laboratory reared fish released at known ae. taeniorhynchus breeding sites survi ...19921583495
control of aedes taeniorhynchus and culex quinquefasciatus emergence with sustained release altosid sand granules and pellets in saltwater and freshwater test plots.the efficacy of sustained release altosid sand granules to control adult aedes taeniorhynchus and culex quinquefasciatus emergence was investigated. sand granules applied at a 7-day preflood application rate of 5.6 kg/ha controlled 99% of the ae. taeniorhynchus emergence in saltwater plots for 44 days posttreatment and 35% of cx. quinquefasciatus in freshwater plots. a 5.6 kg/ha rate controlled 100% of the ae. taeniorhynchus emergence for 30 days posttreatment in semi-permanent saltwater plots. ...19911791449
preliminary data on use of the inland silverside, menidia beryllina, to control mosquito larvae.a study of procedures for spawning and culture of the inland silverside, menidia beryllina, was conducted. the efficacy of young menidia, 20 to 22 and 31 to 33 days old, to control mosquito larvae was determined in the laboratory with first and second larval instars of the saltmarsh mosquito aedes taeniorhynchus. feeding trials were run at salinities of 1, 5, 15 and 25%. field trials were also conducted to determine if menidia would effectively control culex quinquefasciatus in brackish water im ...19853880260
the impact of industrial anthropization on mosquito (diptera, culicidae) communities in mangrove areas of guanabara bay (rio de janeiro, brazil).the effects of industrial anthropization on species composition and community diversity of culicidae (diptera) were studied in a mangrove area impacted by industrial activities as compared to a preserved area, both around guanabara bay in the state of rio de janeiro, brazil. diversity, equitability, and species richness in culicidae community differed between the studied areas. indicator species analysis and correspondence analysis were carried out and indicated that the sabethini, especially wy ...201223950012
mosquito (aedes taeniorhynchus) resistance to methoprene in an isolated habitat.salt-marsh mosquitoes (aedes taeniorhynchus), collected on 2 barrier islands in lee county, florida, that had been treated from 1989 to 1994 with 150-day methoprene briquets, were bioassayed with technical s-methoprene in the laboratory. susceptibility of the indigenous captiva strain (median lethal concentration [lc50] estimate, 6.71 ppb) collected from captiva island was 14.9-fold lower than the naive flamingo strain (lc50 estimate, 0.45 ppb) from everglades national park. the lover's key stra ...19989673923
effects of mosquito control adulticides on sterile cochliomyia hominivorax (diptera: calliphoridae).effects of mosquito control adulticides on sterile screwworm flies, cochliomyia hominivorax (coquerel) (diptera: calliphoridae), were investigated via bottle bioassays, outdoor cage tests, and exposure to treated vegetation. in bottle bioassays, 43 μg of permethrin via dilution of evoluer, 474.56 μg of malathion via dilution of fyfanon, and 25 μg of naled via dilution of dibrom concentrate were used to challenge screwworm flies. permethrin was more toxic to screwworm flies than was malathion, wh ...201829365134
aircraft-mediated mosquito transport: new direct evidence.a case is reported of a capture of an aedes taeniorhynchus female mosquito in an aircraft cabin as it attempted to bloodfeed on one of the authors during a transoceanic flight from the usa to the iberian peninsula.200011198921
phylogenetic relationships among eighteen neotropical culicini species.the subgeneric relationships among 8 generic and infrageneric taxa of the culicini tribe were examined by cladistic analysis based on 30 larval mouthpart characters (maxillae and mandibles) of 7 subgenera of culex l. and 1 of deinocerites theobald. we analyzed 18 ingroup species as well as deinocerites melanophylum dyar and knab as a sister group, and aedes taeniorhynchus wiedemann as an outgroup. a parsimony analysis using the nona program resulted in 2 trees each of 109 steps (consistency and ...200010901630
allethrin-based mosquito control device causing knockdown, morbidity, and mortality in four species of field-caught mosquitoes (diptera: culicidae).a mosquito control device marketed for spatial repellency, the thermacell mosquito repellent appliance, was evaluated in semifield trials against multiple field-caught species of mosquito. using paper and mesh cages, mosquito test groups of at least 30 mosquitoes were suspended in a 2,337 cubic foot outdoor space while two thermacell repellent devices were active. after 30 min of treatment, cages were moved to the laboratory to observe knockdown, morbidity, and mortality for 24 h. species tested ...201526335485
failure to predict abundance of saltmarsh mosquitoes aedes sollicitans and a. taeniorhynchus (diptera: culicidae) by using variables of tide and weather.weather and tide variables were used to develop regression models with light trap counts of aedes sollicitans (walker) and aedes taeniorhynchus (wiedemann) from 1984 to 1995. rains, tides, and temperatures, both during and preceding the sample period, all showed significant correlations with trap counts. these multiple regression models forecasted general population levels during 1996 and 1997, but not the size of the peaks. therefore, weather alone can predict general trends but cannot be used ...19989615534
analysis of the genetic variability and structure of ochlerotatus taeniorhynchus (diptera: culicidae) populations from the colombian atlantic coast on the basis of random amplified polymorphic dna markers.ochlerotatus taeniorhynchus (diptera: culicidae) is a mosquito, which is an efficient vector of the virus causing epidemic-epizootic venezuelan equine encephalitis in colombia. this study used 9 random amplified polymorphic dna (rapd) markers to analyze the mosquito's genetic variability and genetic structure of 122 specimens in 7 populations from the colombian atlantic coast. assuming that all loci were in hardy-weinberg equilibrium, diversity statistics and analyses were performed. the average ...201424938703
influence of ground ulv droplet spectra on adulticide efficacy for aedes taeniorhynchus.a series of 76 field trials in a vegetated habitat with caged adult aedes taeniorhyncus mosquitoes determined that ground ultra-low volume treatment efficiency was significantly influenced by droplet size. small droplets (7-microns volume median diameter [vmd]) produced the lowest mosquito mortality at all test distances (100-500 ft.). a vmd of 26 microns was effective at 100-300 ft., but was not effectual at 400-500 ft. droplets in the 15-microns range were the most effective overall, at the di ...19968827622
host selection and parasite infection in aedes taeniorhynchus, endemic disease vector in the galápagos islands.host selection in blood-sucking arthropods has important evolutionary and ecological implications for the transmission dynamics, distribution and host-specificity of the parasites they transmit. the black salt-marsh mosquito (aedes taeniorhynchus wiedemann) is distributed throughout tropical to temperate coastal zones in the americas, and continental populations are primarily mammalphilic. it is the only indigenous mosquito in the galápagos islands, having colonised the archipelago around 200,00 ...201222921730
aerial ultra-low-volume application of naled: impact on nontarget imperiled butterfly larvae (cyclargus thomasi bethunebakeri) and efficacy against adult mosquitoes (aedes taeniorhynchus).we assessed the exposure and acute toxicity of naled, applied aerially as an ultra-low-volume spray for mosquito control, on late instar larvae of the miami blue (cyclargus thomasi bethunebakeri) (comstock and huntington 1943) (lepidoptera: lycaenidae), an imperiled south florida butterfly. we concurrently evaluated the control efficacy against caged adult female salt-marsh mosquitoes (aedes taeniorhynchus) (wiedemann 1821) (diptera: culicidae). this 3-yr study was conducted in north key largo ( ...201022182563
susceptibility status of aedes taeniorhynchus to organochlorine and organophosphate insecticides. 20047885253
effects of host resistance and injury on the susceptibility of aedes taeniorhynchus to mosquito iridescent virus.an iridescent virus is found at low prevalence in population of aedes taenirhynchus. attempts at experimental transmission produced low levels of infection, regardless of the dosage applied. in a test for genetic resistance in colonized ae. taeniorhynchus, the mean infection rates +/- sd for groups of randomly selected and sibling larvae were compared. the standard deviation of the sibling groups was not higher than the random groups (4.0 +/- 3.1% and 3.0 +/- 2.1%), rendering genetic resistance ...19948014628
identification and transcription profiling of trypsin in aedes taeniorhynchus (diptera: culicidae): developmental regulation, blood feeding, and permethrin exposure.the cdna of a trypsin gene from aedes (ochlerotatus) taeniorhynchus (weidemann) was cloned and sequenced. the full-length mrna sequence (890 bp) for trypsin from ae. taeniorhynchus (aettryp1) was obtained, which encodes an open reading frame of 765 bp (i.e., 255 amino acids). to detect whether aettryp is developmentally regulated, a quantitative real-time polymerase chain reaction was used to examine aettrypl mrna expression levels in different developmental stages of ae. taeniorhynchus. aettryp ...201121661315
the association between meteorological variables and the abundance of aedes taeniorhynchus in the florida keys.the black salt marsh mosquito, aedes taeniorhynchus, is a serious nuisance pest and a potential vector of a number of arboviruses. this study examined the effect of wind direction, wind speed, temperature, and time of year on the abundance of ae. taeniorhynchus collected in co₂ -baited light traps at 12 sites in the florida keys during 2004. the dependent variable analyzed was the natural log of weekly mosquito abundance. the previous week's wind speed and wind direction, and the current week's ...201021175941
eggshells as an index of aedine mosquito production. 2: relationship of aedes taeniorhynchus eggshell density to larval production.to test if eggshell density could be used as an index of aedine mosquito production, we compared eggshell density with the larval production of aedes taeniorhynchus in florida mangrove basin forests. quantitative (n = 7) and categorical (n = 34) estimates of annual larval production were regressed against the number of eggshells per cc of soil. significant regressions were obtained in both instances. larval production was concentrated in zones with the highest eggshell density. we suggest that e ...19921583487
eggshells as an index of aedine mosquito production. 1: distribution, movement and sampling of aedes taeniorhynchus eggshells.the distribution of aedes taeniorhynchus eggshells in florida mangrove basin forests was determined and used to design a sampling plan. eggshells were found in 10/11 sites (91%), with a mean +/- se density of 1.45 +/- 0.75/cc; density did not change significantly year to year. highest densities were located on the sloping banks of hummocks, ponds and potholes. eggshells were less clumped in distribution than eggs and larvae and thus required a smaller sample size for a given precision level. whi ...19921583486
distribution and sampling of aedes taeniorhynchus (diptera: culicidae) eggs in a florida mangrove forest.the distribution of aedes taeniorhynchus (wiedemann) eggs in a florida mangrove basin forest was quantified and used to design a sampling plan. eggs were found in detritus-rich soil with the highest densities in a band at elevations 0.1-0.2 m above the water line. dispersion indices (k and taylor's b) indicated that the eggs were aggregated; 14 of 16 populations tested fit the negative binomial distribution. a fixed-size sampling plan using systematic sampling was designed from these data.19912056510
seasonal effects and fine-scale population dynamics of aedes taeniorhynchus, a major disease vector in the galapagos islands.characterization of the fine-scale population dynamics of the mosquito aedes taeniorhynchus is needed to improve our understanding of its role as a disease vector in the galapagos islands. we used microsatellite data to assess the genetic structure of coastal and highland mosquito populations and patterns of gene flow between the two habitats through time on santa cruz island. in addition, we assessed possible associations of mosquito abundance and genetic diversity with environmental variables. ...201020875066
mosquito vector abundance immediately before and after tropical storms alma and arthur, northern belize, 2008.to monitor adult mosquito abundance in northern belize before/after the first tropical storm of the wet season to estimate the time required for development/recovery of potential vector populations; determine which species predominate post-storm; and compare the effectiveness of two types of mosquito traps-octenol-baited mosquito magnets® and u.s. centers for disease control and prevention (cdc) light traps (with/without octenol).201020857016
semiochemicals, traps/targets and mass trapping technology for mosquito management.technologies which utilize semiochemicals, traps/targets and mass trapping are relatively new for management of adult mosquito populations. to date most of the emphasis has been on developing barriers of attractant-baited and insecticide-impregnated targets. the most successful continuous use of this type of technology has been at stevens' landing, collier county, fl. recently, commercially available traps have been evaluated for their ability to reduce nuisance populations of mosquitoes. use of ...200717853609
small plot test of sustained-release altosid (methoprene) pellets against aedes taeniorhynchus in brackish water.four percent methoprene pellets applied at a rate of 2.2 kg/ha effectively controlled adult aedes taeniorhynchus emergence (93%) for over 3 weeks. efficacy declined to 38% 4 weeks posttreatment. at a rate of 4.5 kg/ha, 95% control was maintained for 34 days with the exception of the 5th week when only 72% control was observed.19902324717
chronic pruritic eruption in patients with acquired immunodeficiency syndrome associated with increased antibody titers to mosquito salivary gland antigens.five of seven patients with acquired immunodeficiency syndrome (aids) who had pruritus and a chronic, nonspecific-appearing skin eruption had increased antibody titers to antigens in the salivary glands of aedes taeniorhynchus, a salt marsh mosquito common to south florida. we hypothesize that the pruritus and skin lesions in patients with aids represent a form of chronic "recall" reaction. increased antibody titers to mosquito salivary gland antigens may be a consequence of nonspecific b cell a ...19892569000
evaluation of equipment modifications and dosage rates of ground ulv applications of naled against aedes taeniorhynchus in a florida citrus grove.efficiency of ground-applied naled (dibrom 14), based on caged mosquito bioassays in a moderately vegetated coastal southeastern florida citrus grove, proved to be significantly associated with downwind distance. however, association analysis between wind speed, temperature or relative humidity revealed no correlation between these meteorological factors and mosquito mortality. tests conducted with 3 of the commonly used ulv machines demonstrated no significant differences in efficiency. equipme ...19883251479
efficacy studies of aquaprene (1.8% and 2.8% ai) sand granules and altosid xr-g (1.5% ai) sand granules against first and second instars of ochlerotatus taeniorhynchus as a preflood treatment in small field plots.an efficacy study was conducted to evaluate sand granule formulations of aquaprene (1.8% and 2.8% active ingredient [ai]) and altosid xr-g (1.5% ai) as a preflood application against ochlerotatus taeniorhynchus larvae in small field test plots. aquaprene sand granules (2.8% al) were applied at 2.5 and 5 lb/acre and the 1.8% ai formulation at 4.2 lb/acre. the 1.8% ai formulation was compared with altosid xr-g sand granules (1.5% ai) applied at 5 lb/acre. plots were flooded after 7 days, and 1st a ...200717847853
colonization of culex nigripalpus theobald (diptera: culicidae) by stimulation of mating using males of other mosquito species.culex nigripalpus theobald (diptera: culicidae) was recolonized successfully by cohabiting aedes taeniorhynchus males or males of other mosquito species starting in a large outdoor cage under natural light-dark cycles and temperatures and ending in a 1-ft.3 cage under artificial light-dark cycles at 24 degrees c without added stimulation.199910342273
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