Lehane M J, McEwen P K, Whitaker C J, Schofield C J
School of Biological Sciences, University of Wales, Bangor, UK.
Acta Trop. 1992 Sep;52(1):27-38. doi: 10.1016/0001-706x(92)90004-h.
Flight initiation in Triatoma infestans is associated with low nutritional status and increases with rising temperature; it appears to be largely independent of bug age and sex. A predictive model for the probability of flight initiation was constructed based on weight:length ratios of the bugs and maximum ambient temperature, both of which can be ascertained in the field. The model accurately predicted the proportion of bugs initiating flight in > 85% of the groups used in our study. The predictive equation was found to give significant fits with two independent data sets. From our results it might be expected that flight would be rare during colder (< 20 degrees C) months but that 5-10% of the normal population of an infested house would fly on any given night during the hotter months when temperatures approach 30 degrees C. If bug nutritional status falls significantly, this proportion could be expected to rise to 30%.
致倦库蚊的飞行起始与低营养状态相关，并随温度升高而增加；它似乎在很大程度上与虫龄和性别无关。基于虫子的体重与体长之比以及最高环境温度构建了飞行起始概率的预测模型，这两个参数均可在野外确定。该模型准确预测了我们研究中超过85%的组中起始飞行的虫子比例。发现该预测方程与两个独立数据集拟合良好。根据我们的结果，预计在较冷（<20摄氏度）的月份飞行很少见，但在温度接近30摄氏度的较热月份，任何给定夜晚受感染房屋中正常种群的5-10%会飞行。如果虫子的营养状态显著下降，预计这一比例会升至30%。
