Abstract:
Culex pipiens pallens Coquillett, 1898 (Diptera: Culicidae) was the dominant health threat to mosquito species in Beijing, and it is important to unravel the spatial distribution and environmental correlations of Cx. pipiens pallens in Beijing. 3S technology methods and spatial statistics were used to clarify the distribution pattern. Subsequently, linear and spatial regression were performed to detect the environmental factors linked with the density of Cx. pipiens pallens. The same \"middle peak\" spatial distribution pattern was observed for Cx. pipiens pallens density at the community, subdistrict, and loop area levels in our study area. In addition, there were various correlated environmental factors at the community and subdistrict scales. At the community scale, the summary values of the Modified Normalized Difference Water Index (MNDWI) in 2 km buffer zone (MNDWI_2K) were negatively correlated, and the summary values of Normalized Difference Built-up Index (NDBI) in 800 m buffer zone (NDBI_800) was positively correlated to the Cx. pipiens pallens density. However, the summary values of Normalized Difference Vegetation Index and Nighttime Light Index significantly affected Cx. pipiens pallens density at the subdistrict scale. Our findings provide insight into the spatial distribution pattern of Cx. pipiens pallens density and its associated environmental risk factors at different spatial scales in the Haidian district of Beijing for the first time. The results could be used to predict the Cx. pipiens pallens density as well as the risk of lymphatic filariasis (LF) infection, which would help implement prevention and control measures to prevent future risks of biting and LF transmission in Beijing.
摘要:
淡色库蚊使科奎利特苍白,1898年(双翅目:Culicidae)是北京蚊子的主要健康威胁,揭示Cx的空间分布和环境相关性非常重要。北京的pipiens苍白。使用3S技术方法和空间统计来阐明分布格局。随后,进行线性和空间回归以检测与Cx密度相关的环境因素。pipiens苍白。对于Cx观察到相同的“中峰”空间分布模式。pipienspallensdensityatthecommunity,分区,和循环区域水平在我们的研究区域。此外,在社区和街道尺度上有各种相关的环境因素。在社区规模上,2km缓冲区(MNDWI_2K)的修正归一化差异水指数(MNDWI)的汇总值呈负相关,800m缓冲区(NDBI_800)归一化差异累积指数(NDBI)的汇总值与Cx呈正相关。苍白无力密度。然而,归一化植被指数和夜间光照指数的汇总值显着影响Cx。pipiens苍白的密度在分区规模。我们的发现为Cx的空间分布模式提供了见解。首次在北京市海淀区不同空间尺度下的苍白脸密度及其相关环境风险因子。结果可用于预测Cx。pipiens苍白的密度以及淋巴丝虫病(LF)感染的风险,这将有助于实施防控措施,以防止北京未来的咬伤和LF传播风险。