4/29/2023 0 Comments Eliza schneider bushWe investigated the distribution, abundance, host interactions, and West Nile virus infection prevalence of Ae. Studies have shown interactions of these two mosquito species with a variety of vertebrate hosts however, regional differences exist and may influence their contribution to arbovirus transmission. We conclude that this invasive mosquito species has the potential for a broad expansion at the European level in the coming decades.Īedes albopictus and Aedes japonicus, two invasive mosquito species in the United States, are implicated in the transmission of arboviruses. Maps of the potential distribution also suggest the presence of further suitable areas in currently uncolonized countries. Peri-urban areas located in proximity to forests, pastures and vineyards were revealed as highly suitable environments for colonisation by this invasive species. koreicus mosquitoes in Northern Italy and the rest of Europe. Occurrence data from this study and results from previous monitoring campaigns were used to generate a Maxent model for the prediction of habitat suitability for Ae. japonicus were also collected in the same geographic areas, though they were less frequent. Larvae from the invasive subspecies of Ae. koreicus in pre-Alpine territories of Lombardy and Piedmont. We found evidence for a widespread presence of Ae. Accordingly, in this study four regions of Northern Italy (Lombardy, Liguria, Piedmont and Aosta Valley) were surveyed during 2021 for the presence of eggs, larvae and pupae of these two invasive species. Nevertheless, information about their current and potential distribution is partial. In the last decade, Aedes koreicus and Aedes japonicus japonicus mosquitoes, which are competent vectors for various arboviruses of public health relevance, colonised Italy and other European countries. japonicus might both cause public health problems in the future and have a significant impact on the biodiversity of the invaded territories. japonicus does not only display an aggressive biting behaviour but is suspected to be a vector of various disease agents and to displace indigenous culicid species. While entry ports and long-distance continental migration routes are also obscure, it is likely that the international used tyre trade is the most important mode of intercontinental transportation of the mosquito. Similarly, it is not known whether these populations go back to the same number of introductions. Apparently, at the end of 2013 a total of six populations occurred in Europe although it is not clear whether all of them are completely isolated. In 2013, a population was detected in the Central Netherlands, specimens were collected in southern Alsace, France, and the complete northeastern part of Slovenia was found colonized, with specimens also present across borders in adjacent Croatia. Also in 2011, the species was found in southeastern Austria (Styria) and neighbouring Slovenia. Subsequent studies in Germany showed a wide distribution and several populations of the mosquito in various federal states. In 2008, immature developmental stages were discovered in a large area in northern Switzerland and bordering parts of Germany. A population that had appeared in Belgium in 2002 was not controlled until 2012 as it did not propagate. In the year 2000, it was demonstrated for the first time in Europe, continental France, but could be eliminated. After a massive spread the mosquito is now widely distributed in eastern North America including Canada and two US states on the western coast. In 1998, established populations were reported from the eastern US, most likely as a result of introductions several years earlier. Being native to East Asia, this species was detected out of its original distribution range for the first time in the early 1990s in New Zealand where it could not establish, though. The Asian bush or rock pool mosquito Aedes japonicus japonicus is one of the most expansive culicid species of the world.
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