Population composition and seasonal distribution of mosquitoes in Laoshan District, Qingdao City
10.3969/j.issn.1005-0507.2026.02.007
- VernacularTitle:青岛市崂山区蚊虫种群构成及季节分布特征
- Author:
Zi-long TANG
1
;
Na YU
2
;
Yang YU
1
;
Fan YIN
1
;
Bing-hui LI
3
;
Hong-yu WANG
4
;
Ke-jia HUANG
1
Author Information
1. Department of Vector Control, Qingdao Laoshan District Center for Disease Control and Prevention, Qingdao 266700, Shandong, China
2. Department of Orthopedics, The Fifth People's Hospital of Qingdao City, Qingdao 266700, Shandong, China
3. Department of Disinfection and Vector Control, Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266700, Shandong, China; Qingdao Institute of Preventive Medicine, Qingdao 266700, Shandong, China
4. Department of Endemic Disease Control, Qingdao Laoshan District Center for Disease Control and Prevention, Qingdao 266700, Shandong, China
- Publication Type:Journal Article
- Keywords:
Mosquito;
Population distribution;
Seasonal characteristics;
Concentration;
Circular distribution
- From:
Acta Parasitologica et Medica Entomologica Sinica
2026;33(2):114-120
- CountryChina
- Language:Chinese
-
Abstract:
Objective The study aimed to elucidate the population composition and seasonal distribution characteristics of mosquitoes in Laoshan District, Qingdao City, providing a scientific basis for the prevention and control of mosquito-borne infectious diseases. Methods Mosquito surveillance was conducted in Laoshan District in Qingdao City using light traps from April to November 2020-2022. Dominant mosquito species were identified using the Berger-Parker dominance index(I)and mosquito density was compared using the Kruskal-Wallis H test. The seasonal distribution characteristics of adult mosquitoes were analyzed using concentration and circular distribution method. Spearman rank correlation analysis was used to study the relationship between mosquito populations and meteorological factors with mean monthly temperature, mean monthly relative humidity, and mean monthly rainfall. Results The mean mosquito density for the trapping period was 9.771 females/(trap·night)in 2020,9.771 in 2021, and 9.427 in 2022. There was no statistically significant difference in mosquito density between different years(H = 0.095, P = 0.954). In total, 2 781 adult female mosquitoes comprising five species from four genera were captured over three years. Culex pipiens(I = 0.654), Aedes albopictus(I = 0.202), and Aedes aegypti(I = 0.118)were identified as dominant species. Seasonal fluctuations in the adult mosquitoes were unimodal, and primarily concentrated from June to September. The peak period of adult mosquito varied between years with statistical significance. (F = 3.838, P ＜ 0.05). Mosquito density was highly correlated with mean monthly temperature, mean monthly relative humidity and mean monthly precipitation(P＜ 0.05). Conclusions Cx. pipiens pallens, Ae. albopictus, and Ar. inamoratus are the dominant mosquito species in the Laoshan District of Qingdao City. The activity of adult mosquitoes is seasonal, and primarily concentrated in summer and autumn, during which the risk of mosquito-borne diseases such as dengue fever is increased.
