Fredeen F J, Mason P G
Research Station, Agriculture Canada, Saskatoon, Saskatchewan.
J Med Entomol. 1991 Nov;28(6):831-40. doi: 10.1093/jmedent/28.6.831.
The influence of selected meteorological variables on host-seeking activity of parous and nulliparous female Simulium luggeri at cattle bait was studied in central Saskatchewan. Variability in the pattern of diurnal host-seeking probably was attributable to the secondary influence of meteorological parameters on endogenous rhythms that are primarily stimulated by illumination. Although some differences occurred, nulliparous and parous female S. luggeri activity was similarly influenced by the meteorological factors measured. The most important limiting factors were wind speeds greater than 15 km/h, followed by temperatures less than 20 degrees C. When values were outside of these thresholds, saturation deficit, cloud cover, barometric pressure, and illumination became influential. Parous S. luggeri appeared to be more tolerant of dry conditions than nulliparous individuals. Seasonal differences, site location (exposed versus protected), and varied interactions among environmental factors contributed to the inconsistent relationships among meteorological variables and black fly host-seeking activity.
在萨斯喀彻温省中部，研究了选定的气象变量对产过卵和未产过卵的卢氏蚋雌虫在牛诱饵上寻找宿主活动的影响。昼夜寻找宿主模式的变化可能归因于气象参数对主要受光照刺激的内源性节律的次要影响。尽管存在一些差异，但产过卵和未产过卵的卢氏蚋雌虫活动受所测气象因素的影响相似。最重要的限制因素是风速大于15公里/小时，其次是温度低于20摄氏度。当数值超出这些阈值时，饱和差、云量、气压和光照就会产生影响。产过卵的卢氏蚋似乎比未产过卵的个体更能耐受干燥条件。季节差异、地点位置（暴露与受保护）以及环境因素之间的各种相互作用导致了气象变量与黑蝇寻找宿主活动之间关系的不一致。
