a draft genome sequence of an invasive mosquito: an italian aedes albopictus.the draft genome sequence of italian specimens of the asian tiger mosquito aedes (stegomyia) albopictus (diptera: culicidae) was determined using a standard ngs (next generation sequencing) approach. the size of the assembled genome is comparable to that of aedes aegypti; the two mosquitoes are also similar as far as the high content of repetitive dna is concerned, most of which is made up of transposable elements. although, based on busco (benchmarking universal single-copy orthologues) analysi ...201526369436
autochthonous chikungunya transmission and extreme climate events in southern france.extreme precipitation events are increasing as a result of ongoing global warming, but controversy surrounds the relationship between flooding and mosquito-borne diseases. a common view among the scientific community and public health officers is that heavy rainfalls have a flushing effect on breeding sites, which negatively affects vector populations, thereby diminishing disease transmission. during 2014 in montpellier, france, there were at least 11 autochthonous cases of chikungunya caused by ...201526079620
the effect of pyriproxyfen as a "population growth regulator" against aedes albopictus under semi-field insect growth regulator, pyriproxyfen, has been used for the control of a range of pest insects, including mosquitoes. pyriproxyfen is effective in inhibiting adult emergence and sterilizing adult females. the asian tiger mosquito, aedes albopictus (skuse), is an important vector of dengue and chikungunya, and is expanding its distribution throughout europe and the americas. in the present study, we evaluated the impact of pyriproxyfen-treated bed nets on population growth of ae. albopictus u ...201323843982
source reduction behavior as an independent measurement of the impact of a public health education campaign in an integrated vector management program for the asian tiger mosquito.the goal of this study was to evaluate the effectiveness of a public health educational campaign to reduce backyard mosquito-larval habitats. three communities each, within two new jersey counties, were randomly selected to receive: (1) both education and mosquito control, (2) education only, and (3) no education or mosquito control. four separate educational events included a 5-day elementary school curriculum in the spring, and three door to door distributions of educational brochures. before ...201121655124
population genetics of aedes albopictus (diptera: culicidae) invading populations, using mitochondrial nicotinamide adenine dinucleotide dehydrogenase subunit 5 sequences.aedes albopictus (skuse) (diptera: culicidae), the asian tiger mosquito indigenous to asia, now an invasive species worldwide, is an important vector for several arboviruses. genetic analysis using the mitochondrial nicotinamide adenine dinucleotide dehydrogenase subunit 5 (nd5) gene was carried out in populations from cameroon (n = 50), hawaii (n = 38), italy (n = 20), the continental united states, brazil, and its native range. data for brazil, the continental united states, and the native ran ...200822544973
crouching tiger, hidden trouble: urban sources of aedes albopictus (diptera: culicidae) refractory to source-reduction.our ultimate objective is to design cost-effective control strategies for aedes albopictus, the asian tiger mosquito, an important urban nuisance and disease vector that expanded worldwide during the last 40 years. we conducted mosquito larval surveys from may through october 2009 in the city of trenton, new jersey, usa, while performing intensive monthly source-reduction campaigns that involved removing, emptying, or treating all accessible containers with larvicides and pupicides. we examined ...201324167593
recent and projected future climatic suitability of north america for the asian tiger mosquito aedes albopictus.since the 1980s, populations of the asian tiger mosquito aedes albopictus have become established in south-eastern, eastern and central united states, extending to approximately 40°n. ae. albopictus is a vector of a wide range of human pathogens including dengue and chikungunya viruses, which are currently emerging in the caribbean and central america and posing a threat to north america.201425441177
dengue and chikungunya: long-distance spread and outbreaks in naïve areas.mosquito-borne virus infections, such as dengue and chikungunya, are continuously expanding their geographical range. the dengue virus, which is known to be a common cause of febrile illness in tropical areas of the old world, is now widespread in the americas. in most affected areas, all the four dengue virus serotypes have circulated. recently, small clusters of dengue have been identified also in southern europe during the hot season. the chikungunya virus, initially restricted to central afr ...201425491436
influence of resource levels, organic compounds and laboratory colonization on interspecific competition between the asian tiger mosquito aedes albopictus (stegomyia albopicta) and the southern house mosquito culex quinquefasciatus.the mosquitoes aedes albopictus (stegomyia albopicta) (skuse) and culex quinquefasciatus (say) (diptera: culicidae) are common inhabitants of tyres and other artificial containers, which constitute important peridomestic mosquito breeding habitats. we tested the hypotheses that interspecific resource competition between the larvae of these species is asymmetrical, that the concentration of chemicals associated with decomposing detritus affects the competitive outcomes of these species, and that ...201424444185
integrating the public in mosquito management: active education by community peers can lead to significant reduction in peridomestic container mosquito habitats.mosquito species that utilize peridomestic containers for immature development are commonly aggressive human biters, and because they often reach high abundance, create significant nuisance. one of these species, the asian tiger mosquito aedes albopictus, is an important vector of emerging infectious diseases, such as dengue, chikungunya, and zika fevers. integrated mosquito management (imm) of ae. albopictus is particularly difficult because it requires access to private yards in urban and subu ...201425255027
incorporation of calcium buffers into salamander retinal rods: a rejection of the calcium hypothesis of phototransduction.the suction-electrode technique was used to monitor the photocurrent of isolated retinal rods from the tiger salamander, by drawing in the light-sensitive outer segment, or sometimes the inner segment. calcium buffers or other agents were then introduced into the rod cytoplasm by the 'whole-cell patch-clamp' technique. a patch pipette was sealed against the region of the rod protruding from the suction pipette (usually the inner segment), and the membrane patch was ruptured to obtain a whole-cel ...20113088263
contact allergy to colophony in chinese musk and tiger-bone plaster. 20051809536
the off-overshoot responses of photoreceptors and horizontal cells in the light-adapted retinas of the tiger salamander.depolarizing overshoot responses at the cessation of a test light step were observed in horizontal cells (hcs) and in a population of photoreceptors (rodcs) in light-adapted retinas of the tiger salamander. an anode break regenerative conductance may contribute to the overshoot responses in rodcs(o-wave). the overshoot responses in hcs consist of two components: a fast alpha-wave whose amplitude and time course follow those of the o-wave; and a slow beta-wave whose amplitude and time course vary ...20123409996
comparative host feeding patterns of the asian tiger mosquito, aedes albopictus, in urban and suburban northeastern usa and implications for disease transmission.aedes albopictus is an invasive species which continues expanding its geographic range and involvement in mosquito-borne diseases such as chikungunya and dengue. host selection patterns by invasive mosquitoes are critically important because they increase endemic disease transmission and drive outbreaks of exotic pathogens. traditionally, ae. albopictus has been characterized as an opportunistic feeder, primarily feeding on mammalian hosts but occasionally acquiring blood from avian sources as w ...201425101969
avian malaria parasites in the last supper: identifying encounters between parasites and the invasive asian mosquito tiger and native mosquito species in italy.the invasive asian tiger mosquito aedes albopictus has dramatically expanded its distribution range, being catalogued as one of the world's 100 worst invasive alien species. as vectors of pathogens, ae. albopictus may create novel epidemiological scenarios in the invaded areas.201525626918
review of ten-years presence of aedes albopictus in spain 2004-2014: known distribution and public health concerns.ten years have gone by since the asian tiger mosquito aedes albopictus was recorded for the first time in spain. in this paper, all relevant published information about this vector in spain for the period 2004-2014 is reviewed. the known distribution for 2014 is provided, including all historical records (published and unpublished data) and the results from samplings of the last year. the consequences on public health about the presence of the asian tiger mosquito in spain are also highlighted. ...201526694818
zika virus in gabon (central africa)--2007: a new threat from aedes albopictus?chikungunya and dengue viruses emerged in gabon in 2007, with large outbreaks primarily affecting the capital libreville and several northern towns. both viruses subsequently spread to the south-east of the country, with new outbreaks occurring in 2010. the mosquito species aedes albopictus, that was known as a secondary vector for both viruses, recently invaded the country and was the primary vector involved in the gabonese outbreaks. we conducted a retrospective study of human sera and mosquit ...201424516683
aedes albopictus and the reemergence of dengue.dengue is a vector-borne disease that is estimated to affect millions of individuals each year in tropical and subtropical areas, and it is reemerging in areas that have been disease-free for relatively long periods of time. in this issue of the journal, peng et al. report on a dengue outbreak in a city in southern china that had been disease-free for more than two decades. the infection, which was due to serotype 1, was introduced by a traveler from south-east asia and transmitted by aedes albo ...201222272602
population genetics of the asian tiger mosquito aedes albopictus, an invasive vector of human diseases.the asian tiger mosquito aedes albopictus is currently one of the most threatening invasive species in the world. native to southeast asia, the species has spread throughout the world in the past 30 years and is now present in every continent but antarctica. because it was the main vector of recent dengue and chikungunya outbreaks, and because of its competency for numerous other viruses and pathogens such as the zika virus, a. albopictus stands out as a model species for invasive diseases vecto ...201627273325
validity of processes of change in physical activity among college students in the tiger test the factorial validity and measurement equivalence/invariance of scales used to measure processes of change derived from the transtheoretical model (ttm) applied to physical activity.020734174
self-regulation of exercise behavior in the tiger study.this study aimed to test experiential and behavioral processes of change as mediators of the prediction of exercise behavior by two self-regulation traits, self-efficacy and self-motivation, while controlling for exercise enjoyment.024311018
evolution of recombination in eutherian mammals: insights into mechanisms that affect recombination rates and crossover interference.recombination allows faithful chromosomal segregation during meiosis and contributes to the production of new heritable allelic variants that are essential for the maintenance of genetic diversity. therefore, an appreciation of how this variation is created and maintained is of critical importance to our understanding of biodiversity and evolutionary change. here, we analysed the recombination features from species representing the major eutherian taxonomic groups afrotheria, rodentia, primates ...201324068360
french invasive asian tiger mosquito populations harbor reduced bacterial microbiota and genetic diversity compared to vietnamese autochthonous relatives.the asian tiger mosquito aedes albopictus is one of the most significant pathogen vectors of the twenty-first century. originating from asia, it has invaded a wide range of eco-climatic regions worldwide. the insect-associated microbiota is now recognized to play a significant role in host biology. while genetic diversity bottlenecks are known to result from biological invasions, the resulting shifts in host-associated microbiota diversity has not been thoroughly investigated. to address this su ...201526441903
climate change effects on chikungunya transmission in europe: geospatial analysis of vector's climatic suitability and virus' temperature requirements.chikungunya was, from the european perspective, considered to be a travel-related tropical mosquito-borne disease prior to the first european outbreak in northern italy in 2007. this was followed by cases of autochthonous transmission reported in south-eastern france in 2010. both events occurred after the introduction, establishment and expansion of the chikungunya-competent and highly invasive disease vector aedes albopictus (asian tiger mosquito) in europe. in order to assess whether these ou ...201324219507
a linkage map of the asian tiger mosquito (aedes albopictus) based on cdna markers.the asian tiger mosquito, aedes (stegomyia) albopictus (skuse), is an important vector of a number of arboviruses, and populations exhibit extreme variation in adaptive traits such as egg diapause, cold hardiness, and autogeny (ability to mature a batch of eggs without blood feeding). the genetic basis of some of these traits has been established, but lack of a high-resolution linkage map has prevented in-depth genetic analyses of the genes underlying these complex traits. we report here on the ...201021148282
modelling population dynamics in realistic landscapes with linear elements: a mechanistic-statistical reaction-diffusion approach.we propose and develop a general approach based on reaction-diffusion equations for modelling a species dynamics in a realistic two-dimensional (2d) landscape crossed by linear one-dimensional (1d) corridors, such as roads, hedgerows or rivers. our approach is based on a hybrid "2d/1d model", i.e, a system of 2d and 1d reaction-diffusion equations with homogeneous coefficients, in which each equation describes the population dynamics in a given 2d or 1d element of the landscape. using the exampl ...201626986201
interspecific competition between aedes albopictus and a. sierrensis: potential for competitive displacement in the western united states.the asian tiger mosquito, aedes albopictus, was first detected in north america twenty five years ago. it utilizes water-holding container habitats as immature development sites, and has rapidly spread throughout the eastern united states. aedes albopictus has occasionally been detected in the western united states, but until recently no established populations of a. albopictus were reported. the western tree-hole mosquito, aedes sierrensis, is the most common tree-hole mosquito throughout the w ...201424586969
quantitative trait loci determining autogeny and body size in the asian tiger mosquito (aedes albopictus).the majority of mosquito species require a blood meal to stimulate vitellogenesis and subsequent oviposition (anautogeny), but some autogenous individuals complete their first ovarian cycle without a blood meal. autogeny may be facultative or obligatory. in this study, we selected for an autogenous strain in the asian tiger mosquito aedes albopictus and examined an f(1) intercross population for quantitative trait loci (qtl) determining the autogeny trait as well as wing length as a proxy for bo ...200818461085
epidemiology of la crosse virus emergence, appalachia region, united crosse encephalitis is a viral disease that has emerged in new locations across the appalachian region of the united states. conventional wisdom suggests that ongoing emergence of la crosse virus (lacv) could stem from the invasive asian tiger (aedes albopictus) mosquito. efforts to prove this, however, are complicated by the numerous transmission routes and species interactions involved in lacv dynamics. to analyze lacv transmission by asian tiger mosquitoes, we constructed epidemiologic mod ...027767009
female adult aedes albopictus suppression by wolbachia-infected male mosquitoes.dengue, chikungunya and zika viruses are pathogens with an increasing global impact. in the absence of an approved vaccine or therapy, their management relies on controlling the mosquito vectors. but traditional controls are inadequate, and the range of invasive species such as aedes albopictus (asian tiger mosquito) is expanding. genetically modified mosquitoes are being tested, but their use has encountered regulatory barriers and public opposition in some countries. wolbachia bacteria can cau ...201627659038
first record of the asian bush mosquito, aedes japonicus japonicus, in italy: invasion from an established austrian 2011 we identified the asian bush mosquito, aedes japonicus japonicus (theobald, 1901) (diptera: culicidae) for the first time in northern slovenia and in the bordering austrian federal state of styria. between may and july 2012 the distribution area of ae. j. japonicus was already found to be extended westwards into carinthia and eastwards towards burgenland and bordering hungary. in august 2012 the species was first detected in a western province of hungary. in subsequent years, follow-up f ...201627184024
glacial history of a modern invader: phylogeography and species distribution modelling of the asian tiger mosquito aedes albopictus.the tiger mosquito, aedes albopictus, is one of the 100 most invasive species in the world and a vector of human diseases. in the last 30 years, it has spread from its native range in east asia to africa, europe, and the americas. although this modern invasion has been the focus of many studies, the history of the species' native populations remains poorly understood. here, we aimed to assess the role of pleistocene climatic changes in shaping the current distribution of the species in its nativ ...201222970238
deep sequencing reveals complex mechanisms of diapause preparation in the invasive mosquito, aedes albopictus.seasonal environments present fundamental physiological challenges to a wide range of insects. many temperate insects surmount the exigencies of winter by undergoing photoperiodic diapause, in which photoperiod provides a token cue that initiates an alternative developmental programme leading to dormancy. pre-diapause is a crucial preparatory phase of this process, preceding developmental arrest. however, the regulatory and physiological mechanisms of diapause preparation are largely unknown. us ...201323516243
transcriptome sequencing as a platform to elucidate molecular components of the diapause response in the asian tiger mosquito, aedes albopictus.diapause has long been recognized as a crucial ecological adaptation to spatio-temporal environmental variation. more recently, rapid evolution of the diapause response has been implicated in response to contemporary global warming and during the range expansion of invasive species. although the molecular regulation of diapause remains largely unresolved, rapidly emerging next-generation sequencing (ngs) technologies provide exciting opportunities to address this longstanding question. herein, a ...023833391
wolbachia strain wpip yields a pattern of cytoplasmic incompatibility enhancing a wolbachia-based suppression strategy against the disease vector aedes albopictus.cytoplasmic incompatibility (ci) is induced in nature by wolbachia bacteria, resulting in conditional male sterility. previous research demonstrated that the two wolbachia strains (walba and walbb) that naturally co-infect the disease vector mosquito aedes albopictus (asian tiger mosquito) can be replaced with the wpip wolbachia strain from culex pipiens. since wolbachia-based vector control strategies depend upon the strength and consistency of ci, a greater understanding is needed on the ci re ...201223146564
infravec: research capacity for the implementation of genetic control of mosquitoes.mosquitoes represent a major and global cause of human suffering due to the diseases they transmit. these include parasitic diseases, i.e. malaria and filariasis, and viral infections such as dengue, encephalitis, and yellow fever. the threat of mosquito-borne diseases is not limited to tropical and subtropical regions of the world. trade and climate changes have opened new niches to tropical vectors in temperate areas of the world, thus putting previously unaffected regions at risk of disease t ...024428829
long-term prophylactic antibiotic treatment: effects on survival, immunocompetence and reproduction success of parasemia plantaginis (lepidoptera: erebidae).hundreds of insect species are nowadays reared under laboratory conditions. rearing of insects always implicates the risk of diseases, among which microbial infections are the most frequent and difficult problems. although there are effective prophylactic treatments, the side effects of applied antibiotics are not well understood. we examined the effect of prophylactic antibiotic treatment on the overwintering success of wood tiger moth (parasemia plantaginis) larvae, and the postdiapause effect ...201627271967
identification and characterization of seminal fluid proteins in the asian tiger mosquito, aedes albopictus.the asian tiger mosquito (aedes albopictus) is an important vector for pathogens that affect human health, including the viruses that cause dengue and chikungunya fevers. it is also one of the world's fastest-spreading invasive species. for these reasons, it is crucial to identify strategies for controlling the reproduction and spread of this mosquito. during mating, seminal fluid proteins (sfps) are transferred from male mosquitoes to females, and these sfps modulate female behavior and physiol ...201424945155
latent inhibition of predator recognition by embryonic avoid being captured, prey animals need to be able to distinguish predators from non-predators. recent studies have shown that amphibians can learn to recognize their future predators while in the egg. here, we investigated whether amphibians would similarly be able to learn to recognize non-predators while in the egg. we exposed newly laid wood frog eggs to the odour of tiger salamander or a water control daily for 5 days. after hatching, the wood frog larvae were raised for two weeks at whi ...200819056547
temporal patterns of abundance of aedes aegypti and aedes albopictus (diptera: culicidae) and mitochondrial dna analysis of ae. albopictus in the central african republic.the invasive asian tiger mosquito aedes albopictus (diptera: culicidae) was first reported in central africa in 2000, in cameroon, with the indigenous mosquito species ae. aegypti (diptera: culicidae). today, this invasive species is present in almost all countries of the region, including the central african republic (car), where it was first recorded in 2009. as invasive species of mosquitoes can affect the distribution of native species, resulting in new patterns of vectors and concomitant ri ...201324349596
genome sequence of the asian tiger mosquito, aedes albopictus, reveals insights into its biology, genetics, and evolution.the asian tiger mosquito, aedes albopictus, is a highly successful invasive species that transmits a number of human viral diseases, including dengue and chikungunya fevers. this species has a large genome with significant population-based size variation. the complete genome sequence was determined for the foshan strain, an established laboratory colony derived from wild mosquitoes from southeastern china, a region within the historical range of the origin of the species. the genome comprises 1, ...201526483478
stage-dependent predation on competitors: consequences for the outcome of a mosquito invasion.1. predator-mediated coexistence occurs when predation allows competitors to coexist, due to preferential consumption of a superior competitor relative to an inferior competitor. differences between the native treehole mosquito (aedes triseriatus) and the co-occurring asian tiger mosquito (aedes albopictus) in anti-predatory larval behaviours account, in part, for the greater vulnerability of this invasive species to native predatory midge (corethrella appendiculata). we test the hypothesis that ...200919457021
a de novo transcriptome of the asian tiger mosquito, aedes albopictus, to identify candidate transcripts for diapause preparation.many temperate insects survive the harsh conditions of winter by undergoing photoperiodic diapause, a pre-programmed developmental arrest initiated by short day lengths. despite the well-established ecological significance of photoperiodic diapause, the molecular basis of this crucial adaptation remains largely unresolved. the asian tiger mosquito, aedes albopictus (skuse), represents an outstanding emerging model to investigate the molecular basis of photoperiodic diapause in a well-defined eco ...201122185595
rapid protein profiling facilitates surveillance of invasive mosquito species.invasive aedine mosquito species have become a major issue in many parts of the world as most of them are recognised vectors or potentially involved in transmission of pathogens. surveillance of these mosquitoes (e.g. ae. aegypti, yellow fever mosquito, aedes albopictus, asian tiger mosquito) is mainly done by collecting eggs using ovitraps and by identification of the larvae hatched in the laboratory. in order to replace this challenging and laborious procedure, we have evaluated matrix-assiste ...201424685094
droplet characterization and penetration of an ultra-low volume mosquito adulticide spray targeting the asian tiger mosquito, aedes albopictus, within urban and suburban environments of northeastern control of aedes albopictus via ultra-low volume is difficult because this species occurs primarily in peridomestic habitats where obstacles such as buildings and vegetation can disrupt spray plumes and droplet dispersion. we determined droplet penetration and characterization of a pyrethroid adulticide applied from the ground at mid (46.77 ml/ha) and maximum (93.53 ml/ha) label rates within cryptic habitats of urban and suburban environments. droplets were collected from all habitats, wit ...201627116103
present and future projections of habitat suitability of the asian tiger mosquito, a vector of viral pathogens, from global climate simulation.climate change can influence the transmission of vector-borne diseases (vbds) through altering the habitat suitability of insect vectors. here we present global climate model simulations and evaluate the associated uncertainties in view of the main meteorological factors that may affect the distribution of the asian tiger mosquito (aedes albopictus), which can transmit pathogens that cause chikungunya, dengue fever, yellow fever and various encephalitides. using a general circulation model at 50 ...025688015
shrimp serine proteinase homologues pmmassph-1 and -2 play a role in the activation of the prophenoloxidase system.melanization mediated by the prophenoloxidase (propo) activating system is a rapid immune response used by invertebrates against intruding pathogens. several masquerade-like and serine proteinase homologues (sphs) have been demonstrated to play an essential role in propo activation in insects and crustaceans. in a previous study, we characterized the masquerade-like sph, pmmassph1, in the black tiger shrimp penaeus monodon as a multifunctional immune protein based on its recognition and antimicr ...201525803442
the worldwide spread of the tiger mosquito as revealed by mitogenome haplogroup the last 40 years, the asian tiger mosquito aedes albopictus, indigenous to east asia, has colonized every continent except antarctica. its spread is a major public health concern, given that this species is a competent vector for numerous arboviruses, including those causing dengue, chikungunya, west nile, and the recently emerged zika fever. to acquire more information on the ancestral source(s) of adventive populations and the overall diffusion process from its native range, we analyzed th ...201627933090
duration and dose-dependency of female sexual receptivity responses to seminal fluid proteins in aedes albopictus and ae. aegypti mosquitoes.male mosquitoes transfer seminal fluid proteins (hereafter 'sfps') during mating. these proteins can have profound effects on female behavior in the yellow fever mosquito aedes aegypti and the asian tiger mosquito aedes albopictus. sfps are thought to be responsible for female refractoriness to mating in both species. however, only limited information is available about the duration of induced refractoriness or the quantity of sfps required to be effective in ae. albopictus. here, we tested the ...201222796224
female-specific flightless (fsridl) phenotype for control of aedes albopictus.aedes albopictus, the asian tiger mosquito, is a vector of several arboviruses including dengue and chikungunya, and is also a significant nuisance mosquito. it is one of the most invasive of mosquitoes with a relentlessly increasing geographic distribution. conventional control methods have so far failed to control ae. albopictus adequately. novel genetics-based strategies offer a promising alternative or aid towards efficient control of this mosquito.201222802980
introduction and establishment of aedes albopictus (diptera: culicidae) in managua, nicaragua.aedes aegypti (l.) is the main vector of dengue virus and more recently chikungunya virus in latin america. however, the asian tiger mosquito aedes albopictus (skuse, 1894) is expanding its global range and increasing its role in transmission of these diseases. in this report, we suggest that ae. albopictus was introduced to the department of managua, nicaragua, in 2010 via two independent routes and demonstrate its dissemination and establishment in urban neighborhoods by 2012. the coexistence ...201526335479
large-scale modelling of the environmentally-driven population dynamics of temperate aedes albopictus (skuse).the asian tiger mosquito, aedes albopictus, is a highly invasive vector species. it is a proven vector of dengue and chikungunya viruses, with the potential to host a further 24 arboviruses. it has recently expanded its geographical range, threatening many countries in the middle east, mediterranean, europe and north america. here, we investigate the theoretical limitations of its range expansion by developing an environmentally-driven mathematical model of its population dynamics. we focus on t ...201626871447
insecticidal activity and insect repellency of four species of sea lily (comatulida: comatulidae) from taiwan.the methanol and ethyl acetate (ea) extracts of four species of sea lily (himerometra magnipinna, comaster multifidus, comanthina sp., and comatella maculata) were evaluated for their insecticidal activity against yellow-fever mosquito larvae (aedes aegypti) and their repellency against adult asian tiger mosquitoes (aedes albopictus). the 24-hr minimum inhibition concentration (mic) data revealed that the extracts from h. magnipinna and the c. maculata were the most active, killing mosquito larv ...201626798137
pmvrp15, a novel viral responsive protein from the black tiger shrimp, penaeus monodon, promoted white spot syndrome virus replication.suppression subtractive hybridization of penaeus monodon hemocytes challenged with white spot syndrome virus (wssv) has identified the viral responsive gene, pmvrp15, as the highest up-regulated gene ever reported in shrimps. expression analysis by quantitative real time rt-pcr revealed 9410-fold up-regulated level at 48 h post wssv injection. tissue distribution analysis showed that pmvrp15 transcript was mainly expressed in the hemocytes of shrimp. the full-length cdna of pmvrp15 transcript wa ...201424637711
piggybac- and phic31-mediated genetic transformation of the asian tiger mosquito, aedes albopictus (skuse).the asian tiger mosquito, aedes albopictus (skuse), is a vector of several arboviruses including dengue and chikungunya. this highly invasive species originating from southeast asia has travelled the world in the last 30 years and is now established in europe, north and south america, africa, the middle east and the caribbean. in the absence of vaccine or antiviral drugs, efficient mosquito control strategies are crucial. conventional control methods have so far failed to control ae. albopictus ...201020808959
de novo assembly and annotation of the asian tiger mosquito (aedes albopictus) repeatome with dnapipete from raw genomic reads and comparative analysis with the yellow fever mosquito (aedes aegypti).repetitive dna, including transposable elements (tes), is found throughout eukaryotic genomes. annotating and assembling the "repeatome" during genome-wide analysis often poses a challenge. to address this problem, we present dnapipete-a new bioinformatics pipeline that uses a sample of raw genomic reads. it produces precise estimates of repeated dna content and te consensus sequences, as well as the relative ages of te families. we shows that dnapipete performs well using very low coverage sequ ...201525767248
transcriptomic evidence for a dramatic functional transition of the malpighian tubules after a blood meal in the asian tiger mosquito aedes albopictus.the consumption of a vertebrate blood meal by adult female mosquitoes is necessary for their reproduction, but it also presents significant physiological challenges to mosquito osmoregulation and metabolism. the renal (malpighian) tubules of mosquitoes play critical roles in the initial processing of the blood meal by excreting excess water and salts that are ingested. however, it is unclear how the tubules contribute to the metabolism and excretion of wastes (e.g., heme, ammonia) produced durin ...201424901705
evolution of resistance to satyrization through reproductive character displacement in populations of invasive dengue vectors.recently, the highly invasive asian tiger mosquito, aedes albopictus, rapidly displaced resident populations of the yellow fever mosquito, aedes aegypti in the southeastern united states and in bermuda. although multiple mechanisms of competitive displacement have been hypothesized, recent evidence of cross-insemination between these species in nature and the sterilizing effects of male accessory gland products asymmetrically favoring a. albopictus in interspecific matings support a role for sat ...201323359710
the efficacy of some commercially available insect repellents for aedes aegypti (diptera: culicidae) and aedes albopictus (diptera: culicidae).reducing the number of host-vector interactions is an effective way to reduce the spread of vector-borne diseases. repellents are widely used to protect humans from a variety of protozoans, viruses, and nematodes. deet (n,n-diethyl-meta-toluamide), a safe and effective repellent, was developed during world war ii. fear of possible side effects of deet has created a large market for "natural" deet-free repellents with a variety of active ingredients. we present a comparative study on the efficacy ...026443777
molecular and functional characterization of the odorant receptor2 (or2) in the tiger mosquito aedes mosquitoes, the olfactory system plays a crucial role in many types of behavior, including nectar feeding, host preference selection and oviposition. aedes albopictus, known also as the tiger mosquito, is an anthropophilic species, which in the last few years, due to its strong ecological plasticity, has spread throughout the world. although long considered only a secondary vector of viruses, the potential of its vector capacity may constitute a threat to public health. based on the idea that ...201222606270
transcript profiling reveals mechanisms for lipid conservation during diapause in the mosquito, aedes albopictus.the asian tiger mosquito, aedes albopictus, is a medically important invasive species whose geographic distribution has expanded dramatically during the past 20 years, and one of the key elements of its success is its capacity to survive long distance transport as a diapausing pharate first instar larva, encased within the chorion of the egg. we report that pharate larvae entering diapause are larger and contain 30% more lipid than their nondiapausing counterparts. to improve our understanding o ...201222579567
whole-genome sequence of wolbachia strain walbb, an endosymbiont of tiger mosquito vector aedes albopictus.although bacteria of the genus wolbachia induced significant extended phenotypes to infected hosts, most molecular mechanisms involved are still unknown. to gain insight into the bacterial genetic determinants, we sequenced the whole genome of wolbachia walbb strain, a commensal obligate intracellular of the tiger mosquito aedes albopictus.022408242
functional characterization of three micrornas of the asian tiger mosquito, aedes albopictus.temporal and stage specific expression of micrornas (mirnas) in embryos, larvae, pupae and adults of aedes albopictus showed differential expression levels across the four developmental stages, indicating their potential regulatory roles in mosquito development. the functional characterization of these mirnas was not known. accordingly our study evaluated the functional characterization of three mirnas, which are temporally up-regulated in the various developmental stages of ae. albopictus mosqu ...201323924583
influence of age and nutritional status on flight performance of the asian tiger mosquito aedes albopictus (diptera: culicidae).the asian tiger mosquito, aedes albopictus, is a competent vector for arboviruses and recently was implicated as the vector of the first autochthonous cases of dengue and chikungunya in southern europe. the objective of this study was to analyze the flight performance of female ae. albopictus of different ages that were starved, sugar-fed, or sugar-fed and blood-fed, using flight mills. after three days of starvation post emergence, females flew an average distance of 0.7 ± 0.5 km in 1.9 ± 1.5 h ...024404384
an experimental and bioinformatics protocol for rna-seq analyses of photoperiodic diapause in the asian tiger mosquito, aedes albopictus.photoperiodic diapause is an important adaptation that allows individuals to escape harsh seasonal environments via a series of physiological changes, most notably developmental arrest and reduced metabolism. global gene expression profiling via rna-seq can provide important insights into the transcriptional mechanisms of photoperiodic diapause. the asian tiger mosquito, aedes albopictus, is an outstanding organism for studying the transcriptional bases of diapause due to its ease of rearing, ea ...201425490084
effectiveness of ultra-low volume nighttime applications of an adulticide against diurnal aedes albopictus, a critical vector of dengue and chikungunya viruses.aedes albopictus, the asian tiger mosquito, continues expanding its geographic range and involvement in mosquito-borne diseases such as chikungunya and dengue. vector control programs rarely attempt to suppress this diurnal species with an ultra-low volume (ulv) adulticide because for maximum efficacy applications are conducted at night. during 2009-2011 we performed experimental nighttime applications of a novel adulticide (duet®) against field populations of ae. albopictus within an urban site ...201223145115
genetic structure of the tiger mosquito, aedes albopictus, in cameroon (central africa).aedes albopictus (skuse, 1884) (diptera: culicidae), a mosquito native to asia, has recently invaded all five continents. in central africa it was first reported in the early 2000s, and has since been implicated in the emergence of arboviruses such as dengue and chikungunya in this region. recent genetic studies of invasive species have shown that multiple introductions are a key factor for successful expansion in new areas. as a result, phenotypic characters such as vector competence and insect ...201121629655
correction to 'present and future projections of habitat suitability of the asian tiger mosquito, a vector of viral pathogens, from global climate simulation'. 026323769
efficacy of two common methods of application of residual insecticide for controlling the asian tiger mosquito, aedes albopictus (skuse), in urban areas.after its first introduction in the 1980's the asian tiger mosquito, aedes albopictus (skuse), has spread throughout southern europe. ae. albopictus is considered an epidemiologically important vector for the transmission of many viral pathogens such as the yellow fever virus, dengue fever and chikungunya fever, as well as several filarial nematodes such as dirofilaria immitis or d. repens. it is therefore crucial to develop measures to reduce the risks of disease transmission by controlling the ...201526248028
the insect growth regulator pyriproxyfen terminates egg diapause in the asian tiger mosquito, aedes albopictus.the asian tiger mosquito, aedes albopictus, is a highly invasive mosquito species that transmits chikungunya and dengue. this species overwinters as diapausing eggs in temperate climates. early diapause termination may be a beneficial strategy for winter mosquito control; however, a mechanism to terminate the diapause process using chemicals is not known. we tested the hypothesis that a hormonal imbalance caused by the administration of juvenile hormone analog would terminate egg diapause in a. ...201526090954
transcriptome profiling and genetic study reveal amplified carboxylesterase genes implicated in temephos resistance, in the asian tiger mosquito aedes albopictus.the control of aedes albopictus, a major vector for viral diseases, such as dengue fever and chikungunya, has been largely reliant on the use of the larvicide temephos for many decades. this insecticide remains a primary control tool for several countries and it is a potential reliable reserve, for emergency epidemics or new invasion cases, in regions such as europe which have banned its use. resistance to temephos has been detected in some regions, but the mechanism responsible for the trait ha ...201526000638
is switzerland suitable for the invasion of aedes albopictus [corrected]?over the last 30 years, the asian tiger mosquito, aedes albopictus, has rapidly spread around the world. the european distribution comprises the mediterranean basin with a first appearance in switzerland in 2003. early identification of the most suitable areas in switzerland allowing progressive invasion by this species is considered crucial to suggest adequate surveillance and control plans.201324349190
novel three-step pseudo-absence selection technique for improved species distribution modelling.pseudo-absence selection for spatial distribution models (sdms) is the subject of ongoing investigation. numerous techniques continue to be developed, and reports of their effectiveness vary. because the quality of presence and absence data is key for acceptable accuracy of correlative sdm predictions, determining an appropriate method to characterise pseudo-absences for sdm's is vital. the main methods that are currently used to generate pseudo-absence points are: 1) randomly generated pseudo-a ...201323967167
tracing the tiger: population genetics provides valuable insights into the aedes (stegomyia) albopictus invasion of the australasian region.the range of the asian tiger mosquito aedes albopictus is expanding globally, raising the threat of emerging and re-emerging arbovirus transmission risks including dengue and chikungunya. its detection in papua new guinea's (png) southern fly river coastal region in 1988 and 1992 placed it 150 km from mainland australia. however, it was not until 12 years later that it appeared on the torres strait islands. we hypothesized that the extant png population expanded into the torres straits as an ind ...201323951380
spread and establishment of aedes albopictus in southern switzerland between 2003 and 2014: an analysis of oviposition data and weather conditions.the asian tiger mosquito, aedes albopictus, is a highly invasive mosquito species of public health importance. in the wake of its arrival in neighbouring italy the authorities of the canton of ticino in southern switzerland initiated a surveillance programme in 2000 that is still on-going. here we explored the unique data set, compiled from 2003 to 2014, to analyse the local dynamic of introduction and establishment of ae. albopictus, its relative density in relation to precipitation and tempera ...201627229686
a de novo transcriptome of the malpighian tubules in non-blood-fed and blood-fed asian tiger mosquitoes aedes albopictus: insights into diuresis, detoxification, and blood meal processing.background. in adult female mosquitoes, the renal (malpighian) tubules play an important role in the post-prandial diuresis, which removes excess ions and water from the hemolymph of mosquitoes following a blood meal. after the post-prandial diuresis, the roles that malpighian tubules play in the processing of blood meals are not well described. methods. we used a combination of next-generation sequencing (paired-end rna sequencing) and physiological/biochemical assays in adult female asian tige ...201626989622
correction for chen et al., genome sequence of the asian tiger mosquito, aedes albopictus, reveals insights into its biology, genetics, and evolution. 201626787860
surveillance and control of aedes albopictus in the swiss-italian border region: differences in egg densities between intervention and non-intervention areas.aedes albopictus, the asian tiger mosquito, originates from the tropical and subtropical regions of southeast asia. over the recent decades it has been passively spread across the globe, primarily through the used tyre trade and passive transportation along major traffic routes. a. albopictus is a proven vector for many arboviruses, most notably chikungunya and dengue, with recent outbreaks also in continental europe. in southern switzerland, in the canton of ticino a. albopictus was spotted for ...201626734946
seasonal synchronization of diapause phases in aedes albopictus (diptera: culicidae).in temperate areas, population dynamics of the invasive asian tiger mosquito aedes albopictus are strongly affected by winter. the work we present here analyzes the adaptive synchronization of the diapause process in the wintry generation of a. albopictus, where the egg stage is exposed to adverse winter conditions. the seasonal pattern of egg laying activity of a french mediterranean population of the asian tiger mosquito was monitored weekly for 2 years with ovitraps. the field diapause incide ...201526683460
genetic analysis of invasive aedes albopictus populations in los angeles county, california and its potential public health impact.the asian tiger mosquito, aedes albopictus, is an anthropophilic aggressive daytime-biting nuisance and an efficient vector of certain arboviruses and filarial nematodes. over the last 30 years, this species has spread rapidly through human travel and commerce from its native tropical forests of asia to every continent except antarctica. in 2011, a population of asian tiger mosquito (aedes albopictus) was discovered in los angeles (la) county, california. to determine the probable origin of this ...201323861921
strategies of a thirteen year surveillance programme on aedes albopictus (stegomyia albopicta) in southern ticino, a canton located south of the alps in switzerland, a surveillance programme on aedes albopictus (stegomyia albopicta) started in 2000 seeing that the region was considered at high risk of introduction based on the rapid spread of this mosquito in neighbouring italy.201525890173
molecular markers for analyses of intraspecific genetic diversity in the asian tiger mosquito, aedes albopictus.the dramatic worldwide expansion of aedes albopictus (the asian tiger mosquito) and its vector competence for numerous arboviruses represent a growing threat to public health security. molecular markers are crucially needed for tracking the rapid spread of this mosquito and to obtain a deeper knowledge of population structure. this is a fundamental requirement for the development of strict monitoring protocols and for the improvement of sustainable control measures.201525890257
economic evaluation of an area-wide integrated pest management program to control the asian tiger mosquito in new jersey.aedes albopictus is the most invasive mosquito in the world, an important disease vector, and a biting nuisance that limits outdoor activities. area-wide integrated pest management (aw-ipm) is the recommended control strategy. we conducted an economic evaluation of the aw-ipm project in mercer and monmouth counties, new jersey with a controlled design (aw-ipm vs. control) from 2009 through 2011. the study analyzed financial documents and staff time for aw-ipm and surveyed an average of 415 rando ...201425338065
area-wide ground applications of bacillus thuringiensis var. israelensis for the control of aedes albopictus in residential neighborhoods: from optimization to operation.the increasing range of aedes albopictus, the asian tiger mosquito, in the usa and the threat of chikungunya and dengue outbreaks vectored by this species have necessitated novel approaches to control this peridomestic mosquito. conventional methods such as adulticiding provide temporary relief, but fail to manage this pest on a sustained basis. we explored the use of cold aerosol foggers and misting machines for area-wide applications of bacillus thuringiensis var. israelensis (vectobac wdg) as ...201425329314
targeting a hidden enemy: pyriproxyfen autodissemination strategy for the control of the container mosquito aedes albopictus in cryptic habitats.the asian tiger mosquito, aedes albopictus, is a vector of dengue, chikungunya, and zika viruses. this mosquito inhabits a wide range of artificial water-holding containers in urban and suburban areas making it difficult to control. we tested the hypothesis that female-driven autodissemination of an insect growth regulator could penetrate cryptic oviposition habitats difficult to treat with conventional insecticidal sprays.201628033379
aedes albopictus and its environmental limits in europe.the asian tiger mosquito aedes albopictus, native to south east asia, is listed as one of the worst invasive vector species worldwide. in europe the species is currently restricted to southern europe, but due to the ongoing climate change, ae. albopictus is expected to expand its potential range further northwards. in addition to modelling the habitat suitability for ae. albopictus under current and future climatic conditions in europe by means of the maximum entropy approach, we here focused on ...201627603669
climate change and range expansion of the asian tiger mosquito (aedes albopictus) in northeastern usa: implications for public health practitioners.the asian tiger mosquito, aedes albopictus (skuse), is an invasive species with substantial biting activity, high disease vector potential, and a global distribution that continues to expand. new jersey, southern new york, and pennsylvania are currently the northernmost boundary of established ae. albopictus populations in the eastern united states. using positive geographic locations from these areas, we modeled the potential future range expansion of ae. albopictus in northeastern usa under tw ...201323565282
effects of biogents sentinel trap field placement on capture rates of adult asian tiger mosquitoes, aedes albopictus.the biogents® sentinel (bgs) trap is the standard tool to monitor adult aedes (stegomyia) albopictus (skuse) (diptera: culicidae), the asian tiger mosquito. bgs traps are commonly placed in residential properties during surveillance operations, but locations within properties may have significant differences in ambient light, temperature, and humidity (e.g. between a sunlit lawn and shady underbrush). we examined the effect of bgs trap placement on ae. albopictus capture rates in three residenti ...201323555987
public perceptions and behaviours related to the risk of infection with aedes mosquito-borne diseases: a cross-sectional study in southeastern explore public perceptions and behaviours related to the risk of flavivirus and alphavirus infection in southeastern regions of france following the recent colonisation of the asian tiger mosquito, aedes albopictus, and the identification of four autochthonous cases of dengue and chikungunya fever in these regions.201223194955
pyrosequencing 16s rrna genes of bacteria associated with wild tiger mosquito aedes albopictus: a pilot study.the asian tiger mosquito aedes (stegomya) albopictus is an invasive species that has spread across the world in the last two decades, showing a great capacity to adapt to contrasting climates and environments. while demonstrated in many insects, the contribution of bacterial symbionts in aedes ecology is a challenging aspect that needs to be investigated. also some bacterial species have already been identified in ae. albopictus using classical methods, but a more accurate survey of mosquito-ass ...201424860790
implementing cargo movement into climate based risk assessment of vector-borne diseases.during the last decades the disease vector aedes albopictus (asian tiger mosquito) has rapidly spread around the globe. global shipment of goods contributes to its permanent introduction. invaded regions are facing novel and serious public health concerns, especially regarding the transmission of formerly non-endemic arboviruses such as dengue and chikungunya. the further development and potential spread to other regions depends largely on their climatic suitability. here, we have developed a to ...201424658412
evolutionary dynamics of autosomal-heterosomal rearrangements in a multiple-x chromosome system of tiger beetles (cicindelidae).genetic systems involving multiple x chromosomes have arisen repeatedly in sexually reproducing animals. tiger beetles (cicindelidae) exhibit a phylogenetically ancient multiple-x system typically consisting of 2-4 x chromosomes and a single y. because recombination rates are suppressed in sex chromosomes, changes in their numbers and movement of genes between sex chromosomes and autosomes, could have important consequences for gene evolution and rates of speciation induced by these rearrangemen ...200717822542
rapid fixation of non-native alleles revealed by genome-wide snp analysis of hybrid tiger salamanders.hybrid zones represent valuable opportunities to observe evolution in systems that are unusually dynamic and where the potential for the origin of novelty and rapid adaptation co-occur with the potential for dysfunction. recently initiated hybrid zones are particularly exciting evolutionary experiments because ongoing natural selection on novel genetic combinations can be studied in ecological time. moreover, when hybrid zones involve native and introduced species, complex genetic patterns prese ...200919630983
insights into the prostanoid pathway in the ovary development of the penaeid shrimp penaeus monodon.the prostanoid pathway converts polyunsaturated fatty acids (pufas) into bioactive lipid mediators, including prostaglandins, thromboxanes and prostacyclins, all of which play vital roles in the immune and reproductive systems in most animal phyla. in crustaceans, pufas and prostaglandins have been detected and often associated with female reproductive maturation. however, the presence of prostanoid biosynthesis genes remained in question in these species. in this study, we outlined the prostano ...201324116186
opportunities of habitat connectivity for tiger (panthera tigris) between kanha and pench national parks in madhya pradesh, india.the tiger (panthera tigris) population in india has undergone a sharp decline during the last few years. of the number of factors attributed to this decline, habitat fragmentation has been the most worrisome. wildlife corridors have long been a subject of discussion amongst wildlife biologists and conservationists with contrasting schools of thought arguing their merits and demerits. however, it is largely believed that wildlife corridors can help minimize genetic isolation, offset fragmentation ...201222815720
influence of connectivity, wild prey and disturbance on occupancy of tigers in the human-dominated western terai arc landscape.occupying only 7% of their historical range and confined to forested habitats interspersed in a matrix of human dominated landscapes, tigers (panthera tigris) typify the problems faced by most large carnivores worldwide. with heads of governments of tiger range countries pledging to reverse the extinction process and setting a goal of doubling wild tiger numbers by 2022, achieving this target would require identifying existing breeding cores, potential breeding habitats and opportunities for dis ...201222792220
landscape-scale accessibility of livestock to tigers: implications of spatial grain for modeling predation risk to mitigate human-carnivore conflict.innovative conservation tools are greatly needed to reduce livelihood losses and wildlife declines resulting from human-carnivore conflict. spatial risk modeling is an emerging method for assessing the spatial patterns of predator-prey interactions, with applications for mitigating carnivore attacks on livestock. large carnivores that ambush prey attack and kill over small areas, requiring models at fine spatial grains to predict livestock depredation hot spots. to detect the best resolution for ...201525859339
tigers and their prey: predicting carnivore densities from prey abundance.the goal of ecology is to understand interactions that determine the distribution and abundance of organisms. in principle, ecologists should be able to identify a small number of limiting resources for a species of interest, estimate densities of these resources at different locations across the landscape, and then use these estimates to predict the density of the focal species at these locations. in practice, however, development of functional relationships between abundances of species and th ...200415041746
identifying conservation successes, failures and future opportunities; assessing recovery potential of wild ungulates and tigers in eastern cambodia.conservation investment, particularly for charismatic and wide-ranging large mammal species, needs to be evidence-based. despite the prevalence of this theme within the literature, examples of robust data being generated to guide conservation policy and funding decisions are rare. we present the first published case-study of tiger conservation in indochina, from a site where an evidence-based approach has been implemented for this iconic predator and its prey. despite the persistence of extensiv ...201223077476
improved methods of carnivore faecal sample preservation, dna extraction and quantification for accurate genotyping of wild tigers.non-invasively collected samples allow a variety of genetic studies on endangered and elusive species. however due to low amplification success and high genotyping error rates fewer samples can be identified up to the individual level. number of pcrs needed to obtain reliable genotypes also noticeably increase.201223071624
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