ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
Chinese Journal of Vector Biology and Control >
Spatial distribution pattern of mosquitoes γ-diversity and relationship with environmental factors of residential area along Lancang river in Yunnan province
Received date: 2016-02-24
Online published: 2016-06-20
Supported by
Supported by the National Natural Science Foundation of China (No. 30860250,30660160)
Objective To investigate the relationship between the basic law of large-scale spatial distribution pattern of mosquitoes and the main ecological factors affecting their distribution in the residential area of Lancang river of Yunnan province in China. Methods We surveyed the mosquitoes in relation to latitude and elevation along the Lancang river (21°-30° N, 500-3 500 m). Adult mosquito samples were captured using UV light traps in the mountainous residential areas. Results (1) A total of 180 099 adult mosquitoes were collected and identified as 46 species of 7 genera in 2 subfamilies. Among them were the Anopheles 16 species, Culex 15 specie, Aedes 11 species, Uranotaenia, Armigeres, Mansonia, and Culiseta 1 species respectively; (2) γ-diversity (Species richness) of mosquito showed ladder-like downward trend with the increasing latitude and along the altitudinal gradient, species richness showed a gradual downward trend; (3) β-diversity (Cody index) showed a bimodal distribution pattern with the increasing latitude, the two peaks were located at position 24°-25° N and 27°-28° N; along the altitudinal gradient, showed increase at first and then gradual decrease, the highest point was located at 1 000-1 500 m; (4) The result of cluster analysis showed that mosquito species were classified into three main ecological types by cluster analysis, namely Oriental fauna, Palaearctic fauna, and the transitional fauna between them; (5) Mosquito species richness with latitude, elevation, temperature and rainfall in the multiple correlation analysis showed that a negative correlation between the number of mosquito species with latitude and elevation, a positive correlation between with the temperature and rainfall. Conclusion Influenced by factors such as geographic and climatic conditions, the spatial distribution pattern of γ-diversity in the Lancang river basin mosquito populations decreased with increased latitude and altitude, and the general trend of increase with the increase of temperature and rainfall. Among them, the latitude as geographical factors has more prominent impact on the mosquito diversity, and the precipitation as a climatic factor in mosquito diversity plays a leading role.
Key words： Mosquito; γ-diversity; Large spatial distribution pattern; Lancang river
YUE Ren-ping, GONG Zheng-da, WANG Hai-bo, GE Jun-qi, ZHANG Li-yun, ZHOU Hong-ning . Spatial distribution pattern of mosquitoes γ-diversity and relationship with environmental factors of residential area along Lancang river in Yunnan province[J]. Chinese Journal of Vector Biology and Control, 2016 , 27(3) : 220 -227 . DOI: 10.11853/j.issn.1003.8280.2016.03.003
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