Epidemiology, Vectors and Parasites, Agricultural Research Council-Onderstepoort Veterinary Research, Pretoria, South Africa.
Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria, South Africa.
Med Vet Entomol. 2022 Mar;36(1):113-126. doi: 10.1111/mve.12558. Epub 2021 Nov 22.
Comparative monitoring of the abundance and distribution of Culicoides biting midges (Diptera: Ceratopogonidae), the biological vectors of the causative agents of several diseases of global veterinary importance, will be crucial in determining the risk of disease outbreak and spread. Ultraviolet (UV) suction traps have become the most frequent method used for the monitoring of Culicoides diversity and abundance. The current study compared the trapping efficiency of the two most used UV suction light traps, i.e., the Onderstepoort (OP)- and the Centres for Disease Control trap, for the collection of livestock associated Culicoides species in South Africa. The study confirmed the superiority of the OP trap and indicated a correlation in species composition and age grading results as determine with the two trap types. Substantial variations in the comparative trap efficiency, as found between areas and sites within an area, suggest that a universal conversion factor between the two trap types may not be advisable as it is unclear to what extent species composition and environmental factors may influence the conversion factor. Light traps, independent of trap model, can be considered acceptable for determining the serial comparison of population numbers for seasonal fluctuation and species abundance in distribution surveys.
比较监测吸血蠓（双翅目：蠓科）的丰度和分布情况，吸血蠓是几种具有全球兽医重要性的病原体的生物媒介，对于确定疾病爆发和传播的风险至关重要。紫外线（UV）吸蚊器已成为监测蠓多样性和丰度最常用的方法。本研究比较了两种最常用的 UV 吸蚊光陷阱，即 Onderstepoort（OP）和疾病控制中心陷阱，用于收集南非与牲畜有关的吸血蠓种类。研究证实了 OP 陷阱的优越性，并表明两种陷阱类型的物种组成和年龄分级结果存在相关性。在一个地区内的不同地区和地点之间，比较捕蚊器效率存在很大差异，这表明在两种捕蚊器类型之间使用通用的转换系数可能是不可取的，因为不清楚物种组成和环境因素在何种程度上可能影响转换系数。无论捕蚊器模型如何，光捕蚊器都可以被认为是可接受的，可用于确定季节性波动和分布调查中物种丰度的种群数量的连续比较。
