Mosquitoes Know No Borders: Surveillance of Potential Introduction of Aedes Species in Southern Québec, Canada

Lowe, Anne-Marie; Forest-Bérard, Karl; Trudel, Richard; Lo, Ernest; Gamache, Philippe; Tandonnet, Matthieu; Kotchi, Serge Olivier; Leighton, Patrick A.; Dibernardo, Antonia; Lindsay, Robbin; Ludwig, Antoinette

doi:10.3390/pathogens10080998

Cited by 8 publications

(5 citation statements)

References 62 publications

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“…During the 2-years of surveys of known and potential vectors of arboviruses in Illinois a total of 24 species of Culicidae belonging to the genera Aedes (9 species), Anopheles ( 4 ), Culex (at least 3 species), Orthopodomyia ( 1 ), Psorophora ( 5 ), Toxorhynchites (1), and Uranotaenia ( 1 ) were collected ( Supplementary Table 1 ). Four species ( Aedes albopictus, Ae.…”

Section: Resultsmentioning

confidence: 99%

“…The worldwide range expansion over recent decades of mosquito vectors of arthropod-borne viruses (arboviruses), such as Aedes albopictus and Ae. japonicus , poses a serious concern for public health ( 1 , 2 ). The introduction and expansion of these container-breeding species can alter the epidemiology of arboviral diseases caused by native or introduced viruses and the interactions with other vectors ( 3 ).…”

Section: Introductionmentioning

confidence: 99%

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Landscape Composition Affects Elements of Metacommunity Structure for Culicidae Across South-Eastern Illinois

Trivellone

Cao

Blackshear

et al. 2022

Front. Public Health

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The interplay among invasive alien vectors and the species assemblage of native potential vectors in areas of range expansion may affect the dynamics of pathogen transmission. In this study we investigate how Aedes albopictus, an invasive mosquito of considerable public health concern fits within mosquito communities at the edge of its range of distribution. This was addressed using a 2-year field survey of mosquitoes in south-eastern Illinois. We found that Ae. albopictus was more broadly distributed in this region than previously realized, with new occurrence records for nine counties. Abundance of this species varied strongly and peaked in locations of low-intermediate overall mosquito species richness. This differed from overall mosquito abundance, as well as abundance of another important vector, Cx. pipiens, for which the abundance-richness relationships were best described with power functions. Metacommunity analyses revealed that mosquito communities showed a non-random distribution with a Clementsian gradient, which suggests a pattern whereby distinct species assemblages are associated with specific habitats or environmental conditions. Land use was a significant underlying factor shaping mosquito community structure and species assemblages. Multivariate analyses showed that while Ae. canadensis and Cx. pipiens complex mosquitoes were associated with high and low proportions of wetlands in the environment, respectively, Ae. albopictus was most strongly associated with urban settlements. This work sheds light on landscape-level processes, such as niche differentiation driven by urban and agricultural development, structuring mosquito communities. We suggest that mosquito community assessments across habitats be incorporated as part of a One Health vector surveillance approach to aid in the goal of prediction and prevention of new and (re-)emerging vector-borne diseases.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Landscape Composition Affects Elements of Metacommunity Structure for Culicidae Across South-Eastern Illinois

Trivellone

Cao

Blackshear

et al. 2022

Front. Public Health

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“…The introduction, establishment, and spread of invasive Aedes species are of great public health concern, mostly because of their ability to transmit a variety of arboviruses [ 21 ]. Surveillance is important to detect the occurrence and establishment of uncommon or invasive species, evaluate the risk of pathogen transmission, plan vector control programs, and understand the ecology of circulating vectors and the diseases they transmit in the region [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Entomological Surveillance of the Invasive Aedes Species at Higher-Priority Entry Points in Northern Iran: Exploratory Report on a Field Study

Nikookar¹,

Maleki²,

Fazeli‐Dinan³

et al. 2022

JMIR Public Health Surveill

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Background Arboviral diseases such as dengue, Zika, and chikungunya are transmitted by Aedes aegypti and Ae albopictus and are emerging global public health concerns. Objective This study aimed to provide up-to-date data on the occurrence of the invasive Aedes species in a given area as this is essential for planning and implementing timely control strategies. Methods Entomological surveillance was planned and carried out monthly from May 2018 to December 2019 at higher-priority entry points in Guilan Province, Northern Iran, using ovitraps, larval collection, and human-baited traps. Species richness (R), Simpson (D), evenness (E), and Shannon-Wiener indexes (H̕) were measured to better understand the diversity of the Aedes species. The Spearman correlation coefficient and regression models were used for data analysis. Results We collected a total of 3964 mosquito samples including 17.20% (682/3964) belonging to the Aedes species, from 3 genera and 13 species, and morphologically identified them from May 2018 to December 2019. Ae vexans and Ae geniculatus, which showed a peak in activity levels and population in October (226/564, 40.07% and 26/103, 25.2%), were the eudominant species (D=75.7%; D=21.2%) with constant (C=100) and frequent (C=66.7%) distributions, respectively. The population of Ae vexans had a significant positive correlation with precipitation (r=0.521; P=.009) and relative humidity (r=0.510; P=.01), whereas it was inversely associated with temperature (r=−0.432; P=.04). The Shannon-Wiener Index was up to 0.84 and 1.04 in the city of Rasht and in July, respectively. The rarefaction curve showed sufficiency in sampling efforts by reaching the asymptotic line at all spatial and temporal scales, except in Rasht and in October. Conclusions Although no specimens of the Ae aegypti and Ae albopictus species were collected, this surveillance provides a better understanding of the native Aedes species in the northern regions of Iran. These data will assist the health system in future arbovirus research, and in the implementation of effective vector control and prevention strategies, should Ae aegypti and Ae albopictus be found in the province.

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“…A buffer zone with a radius of 1 km was created around each trapping site, to approximate the average flight range of the 27 studied species [ 78 , 79 ]. The percent coverage of land use classes was extracted from annual crop inventory data for 2017 and 2018 [ 78 ], within each buffer. Crop inventory data were reclassified into seven land use variables (S4 Table in S1 File ).…”

Section: Methodsmentioning

confidence: 99%

Effects of land use and weather on the presence and abundance of mosquito-borne disease vectors in a urban and agricultural landscape in Eastern Ontario, Canada

et al. 2022

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Weather and land use can significantly impact mosquito abundance and presence, and by consequence, mosquito-borne disease (MBD) dynamics. Knowledge of vector ecology and mosquito species response to these drivers will help us better predict risk from MBD. In this study, we evaluated and compared the independent and combined effects of weather and land use on mosquito species occurrence and abundance in Eastern Ontario, Canada. Data on occurrence and abundance (245,591 individuals) of 30 mosquito species were obtained from mosquito capture at 85 field sites in 2017 and 2018. Environmental variables were extracted from weather and land use datasets in a 1-km buffer around trapping sites. The relative importance of weather and land use on mosquito abundance (for common species) or occurrence (for all species) was evaluated using multivariate hierarchical statistical models. Models incorporating both weather and land use performed better than models that include weather only for approximately half of species (59% for occurrence model and 50% for abundance model). Mosquito occurrence was mainly associated with temperature whereas abundance was associated with precipitation and temperature combined. Land use was more often associated with abundance than occurrence. For most species, occurrence and abundance were positively associated with forest cover but for some there was a negative association. Occurrence and abundance of some species (47% for occurrence model and 88% for abundance model) were positively associated with wetlands, but negatively associated with urban (Culiseta melanura and Anopheles walkeri) and agriculture (An. quadrimaculatus, Cs. minnesotae and An. walkeri) environments. This study provides predictive relationships between weather, land use and mosquito occurrence and abundance for a wide range of species including those that are currently uncommon, yet known as arboviruses vectors. Elucidation of these relationships has the potential to contribute to better prediction of MBD risk, and thus more efficiently targeted prevention and control measures.

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Mosquitoes Know No Borders: Surveillance of Potential Introduction of Aedes Species in Southern Québec, Canada

Cited by 8 publications

References 62 publications

Landscape Composition Affects Elements of Metacommunity Structure for Culicidae Across South-Eastern Illinois

Landscape Composition Affects Elements of Metacommunity Structure for Culicidae Across South-Eastern Illinois

Entomological Surveillance of the Invasive Aedes Species at Higher-Priority Entry Points in Northern Iran: Exploratory Report on a Field Study

Effects of land use and weather on the presence and abundance of mosquito-borne disease vectors in a urban and agricultural landscape in Eastern Ontario, Canada

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