【摘 要】
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Objective Aedes koreicus (Diptera:Culicidae) maybe a native species to Asia,but it is also invasive or imported between regions.This study presents the distribution of this mosquito species in Shandon
【机 构】
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Shandong Center for Disease Control and Prevention ,Jinan 250014, China;Shandong Provincial Key Labo
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Objective Aedes koreicus (Diptera:Culicidae) maybe a native species to Asia,but it is also invasive or imported between regions.This study presents the distribution of this mosquito species in Shandong Province of China over the past 80 years.The distribution and density information was surveyed in 17 cities by collecting adult and immatures mosquito from breeding sites.The altitudinal distribution was also investigated in Meng Mountain (1156 m).The climatic delineations affecting distribution of this species were studied using geographic information system software (ArcGIS).Results We found that:(1) Since the earliest record in 1935,the historical distribution experienced four stages:establishment,consolidation,spreading,and posing threat; (2) The density was high in the middle and eastern regions of Shandong Province,in mountainous and hilly areas,and near the Korean Peninsula; (3) This species adapted to a cold climate,making it capable of surviving and becoming established in the mountains,even above 1156 m;(4) The risk for future epidemic of JE,and other mosquito-borne diseases had also drawn great panic by local residents.Conclusion These results suggest that the environmental factors are crucial for the distribution,and surveillance is required to confirm the development situation,in that eradication is very difficult once it has been established and spread.
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