Pandian R Selvaraj, Chandrashekaran M K
Unit of Animal Behaviour, School of Biological Sciences, Madurai Kamaraj University, 625021, Madurai, India.
Oecologia. 1980 Jan;47(1):89-95. doi: 10.1007/BF00541780.
The biting cycle of Armigeres subalbatus is distinctly crepuscular, exhibiting two peaks of activity, a smaller one at dawn and a larger one at dusk. The biting cycle is entrained to natural light-dark cycles and the time interval from dawn to dawn or dusk to dusk peaks is exactly 24 h and from dawn to dusk or dusk to dawn is about 12 h measured at 50% level. This rhythm manifests itself day after day without any marked qualitative change.The rate of change of light intensity may determine the onset of crepuscular biting. The sudden increase (up to ca. 17 lx) or decrease (down to ca. 4 lx) in the intensity of ambient light at the time of sunrise or sunset coincides with the peak of the biting activity.The density of the population of the host-seeking females fluctuates in relation to the phases of the moon, increasing with the full moon phase and decreasing with the new moon phase.Even though the density of the population is greater outdoors than indoors both at ground levels and in the first floor, the peak of activity occurs at the same time in all the places. A vertical stratification of biting activity was also noticed.
骚扰阿蚊的叮咬周期明显是在黎明和黄昏时分，有两个活动高峰，黎明时的高峰较小，黄昏时的较大。叮咬周期与自然的明暗周期同步，从黎明到黎明或黄昏到黄昏高峰的时间间隔正好是24小时，从黎明到黄昏或黄昏到黎明在50%水平测量约为12小时。这种节律日复一日地表现出来，没有任何明显的质的变化。光照强度的变化速率可能决定黄昏时分叮咬的开始。日出或日落时环境光强度的突然增加（高达约17勒克斯）或减少（低至约4勒克斯）与叮咬活动的高峰相吻合。寻找宿主的雌蚊种群密度随月相波动，满月时增加，新月时减少。尽管在地面和一楼，室外种群密度都比室内大，但所有地方的活动高峰都在同一时间出现。还注意到了叮咬活动的垂直分层。
