Survivorship characteristics of the mosquito <i>Aedes caspius</i> adults from southern France under laboratory conditions

Carron, Alexandre; Bichaud, Laurence; Platz, N.; Bicout, Dominique

doi:10.1111/j.1365-2915.2008.00718.x

Cited by 9 publications

(8 citation statements)

References 11 publications

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“…, 2006; Habel et al. , 2009), especially for species such as A. caspius , whose adults can disperse more than 30 km (Rioux, 1958) during their life span (lasting on average 5 and 14 days for males and females, respectively; see Carron et al. , 2008).…”

Section: Discussionmentioning

confidence: 99%

Southern crossroads of the Western Palaearctic during the Late Pleistocene and their imprints on current patterns of genetic diversity: insights from the mosquito Aedes caspius

Porretta

Canestrelli

Urbanelli

et al. 2010

Journal of Biogeography

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Aim Climatic changes have strongly reshaped the Western Palaearctic biota throughout the Late Pleistocene. For animals, most studies so far have focused on species having low to moderate dispersal abilities, while strong dispersers have remained understudied, despite their abundance. With the aim of contributing to filling this gap, we here investigate the Late Pleistocene evolutionary history of one such species, the mosquito Aedes caspius. Location Western Palaearctic. Methods Sequences of the cytochrome c oxidase subunits I and II mitochondrial DNA genes were analysed in individuals from 16 sampling localities. The phylogeographic structure was investigated using phylogenetic network analysis, permutational contingency tests, spatial analysis of molecular variance, and correlation of genetic and geographic distances between populations. Historical demographic changes were investigated by analysing the mismatch distributions, the Bayesian skyline plot method and Fu's F-S statistic. Results We observed 67 haplotypes over all 112 individuals analysed (haplotype diversity = 0.971; nucleotide diversity = 0.0067). Despite the substantial genetic diversity, we found neither strong phylogenetic divergence among haplotypes (uncorrected mean sequence divergence 0.8%) nor any phylogeographic structure across the study area. The historical demographic analyses suggested that the species maintained a stable population size until roughly 25,000 years ago, when it underwent a sudden demographic expansion. Main conclusions Our data suggest that during the last glacial stage, A. caspius did not undergo dramatic range fragmentation in separate glacial refugia. Rather, the species is likely to have persisted in largely interconnected populations throughout most of the region, in areas with suitable environmental conditions. This scenario adds to similar patterns emerging for other temperate regions of the world, suggesting that an important component of the evolutionary history of temperate biotas has hitherto been largely overlooked

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Section: Discussionmentioning

confidence: 99%

Southern crossroads of the Western Palaearctic during the Late Pleistocene and their imprints on current patterns of genetic diversity: insights from the mosquito Aedes caspius

Porretta

Canestrelli

Urbanelli

et al. 2010

Journal of Biogeography

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“…These values of longevity were compatible with longevity data of Ae. caspius populations from the Camargue, assessed for a given temperature and relative humidity (Carron et al , 2008). Adel-Malek & Adham (1978) showed that the longevity was linearly correlated with the temperature for a given relative humidity.…”

Section: Discussionmentioning

confidence: 99%

Mosquito density forecast from flooding: population dynamics model forAedes caspius(Pallas)

Balenghien

Carron²,

Sinègre³

et al. 2010

Bull. Entomol. Res.

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Insect population dynamics depend strongly on environmental factors. For floodwater mosquitoes, meteorological conditions are crucial in the rhythm of mosquito abundances. Indeed, rainfall triggers the egg hatching after flooding breeding sites, and temperature controls the duration of the aquatic immature development up to adult emergence. According to this, we have developed a simple mechanistic and tractable model that describes the population dynamics of floodwater mosquitoes as a function only of the most accessible meteorological variables, rainfall and temperature. The model involves three parameters: development duration tdev of the immature aquatic stages, the adult emergence rate function f(t) (characterized by the emergence time scale tau and shaping the profile of adult population abundance), and the depletion rate, alpha, of adult disappearance. The developed model was subsequently applied to fit experimental field data of the dynamics of Aedes caspius (Pallas), the main pest mosquito in southern France. First, it was found that the emergence rate function of adult mosquitoes very well reproduce experimental data of the dynamics of immature development for all sampled temperatures. The estimated values of tdev and tau both exhibit Arrhenius behaviour as a function of temperature. Second, using the meteorological records of rainfall and temperature as inputs, the model correctly fit data from a two-site CO2 trapping survey conducted in 2004 and 2005. The estimated depletion rates (summation of the mortality and the emigration rates) were found to be a concave quadratic function of temperature with a maximum of 0.5 per days at about 22 degrees C.

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“…Ae des caspius is a species with a very wide Palearctic distribution; it stretches from Europe to central Asia, and from Egypt to Morocco (ECDC, 2020; Robert et al., 2019). It is a very well‐represented species in the Mediterranean Basin, mainly along the coast; it has been reported in Italy (Veronesi et al., 2012), Belgium (Boukraa et al., 2015), France (Balenghien et al., 2008; Carron et al., 2008), and Spain (Gutierrez‐Lopez et al., 2019). In Morocco, the species was mainly collected in coastal and relatively more humid regions.…”

Section: Discussionmentioning

confidence: 99%

Rift Valley Fever and West Nile virus vectors in Morocco: Current situation and future anticipated scenarios

Outammassine

Zouhair

Loqman

2021

Transbounding Emerging Dis

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Rift Valley Fever (RVF) and West Nile virus (WNV) are two important emerging Arboviruses transmitted by Aedes and Culex mosquitoes, typically Ae. caspius, Ae. detritus and Cx. pipiens in temperate regions. In Morocco, several outbreaks of WNV (1996, 2003 and 2010), affecting horses mostly, have been reported in north‐western regions resulting in the death of 55 horses and one person cumulatively. Serological evidence of WNV local circulation, performed one year after the latest outbreak, revealed WNV neutralizing bodies in 59 out of 499 tested participants (El Rhaffouli et al., 2012). The country also shares common borders with northern Mauritania, where RVF is often documented. Human movement, livestock trade, climate changes and the availability of susceptible mosquito vectors are expected to increase the spread of these diseases in the country. Thus, in this study, we gathered a data set summarizing occurrences of Ae. caspius, Ae. detritus and Cx. pipiens in the country, and generated model prediction for their potential distribution under both current and future (2050) climate conditions, as a proxy to identify regions at‐risk of RVF and WNV probable expansion. We found that the north‐western regions (where the population is most concentrated), specifically along the Atlantic coastline, are highly suitable for Ae. caspius, Ae. detritus and Cx. pipiens, under present‐day conditions. Future model scenarios anticipated possible range changes for the three mosquitoes under all climatic assumptions. All of the studied species are prospected to gain new areas that are currently not suitable, even under the most optimist scenario, thus placing additional human populations at risk. Our maps and predictions offer an opportunity to strategically target surveillance and control programmes. Public health officials, entomological surveillance and control delegation must augment efforts and continuously monitor these areas to reduce and minimize human infection risk.

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Survivorship characteristics of the mosquito Aedes caspius adults from southern France under laboratory conditions

Cited by 9 publications

References 11 publications

Southern crossroads of the Western Palaearctic during the Late Pleistocene and their imprints on current patterns of genetic diversity: insights from the mosquito Aedes caspius

Southern crossroads of the Western Palaearctic during the Late Pleistocene and their imprints on current patterns of genetic diversity: insights from the mosquito Aedes caspius

Mosquito density forecast from flooding: population dynamics model forAedes caspius(Pallas)

Rift Valley Fever and West Nile virus vectors in Morocco: Current situation and future anticipated scenarios

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