吊飞条件下日龄及性别对家蝇成虫飞行能力的影响

Impacts of Age and Sex on Flight Capacity of Tethered Musca domestica

25℃条件下（RH45％～55％），对家蝇驯化种群1～25日龄的7个日龄组的雌、雄成虫进行吊飞研究，从累计飞行距离看，雌、雄成虫均为双峰型，存9日龄和17日龄，飞行机能分别达到2个高峰。从累计飞行时间看，雄虫为单峰型，在17日龄达到高峰，雌虫为双峰型，在5日龄和17日龄飞行机能达到高峰。从平均飞行速度来看，雌、雄成虫均在5Et龄出现1个最低值，在9、13、17日龄，飞行机能处于高水平。综合来看，发现5日龄以前雄虫的飞行能力远不如雌虫；9～17日龄家蝇飞行机能维持在较高水半；17日龄后飞行机能显著衰退。从累计飞行距离和累计飞行时间来看，雄虫色行机能的最弱期发生在21日龄，雌虫发生在25日龄；l日龄的飞行机能不论雌、雄均不如5日龄；雄虫的飞行机能高峰值发生在17日龄，9日龄为第2峰值。从平均飞行速度米看，不论雌、雄，家蝇成虫飞行机能在5口龄均为最弱，甚至弱于21日龄；雄虫的飞行机能最高峰出现在第9日龄，雌虫的最高峰同时出现在第9日龄和第17日龄：单从累计飞行距离来看，雌虫的飞行机能高峰值发生在9日龄，17日龄为第2峰值。统计分析结果显示，家蝇累计吊飞飞行距离在17日龄组与1日龄组和21日龄组问均有极其显著的差异（F（0.01）=3.05〉F（6.102）=2.99）;吊飞飞行速度在雌、雄不同性别间有显著的差异（F（0.05）=4.61〉F〈1.108〉=3.93）。

From 1 day-old to 25 day and at the temperature of 25℃ （RH Accumulative Flight Distance （AFDi old adults of house fly, Musca domestica （Diptera： Muscidae） , 7 groups were chosen 45% - 55% ） , the flight capacity （FC） were measured in flight mills. In view of Accumulative Flight Distance（AFDi）,both male and female shows 2 peaks of flight capacity on 9 day-old,and the female represents 2 peaks of flight capacity on 5 day-old and 17 day-old.In view of Average of Flight Velocity（AFV）,both sexes show a valley on 5 day-old and keep high levels on 9,13 and 17 day-old.The result shows prior to 5 day-old,male adults are greatly weaker than female in same day-old.From 9 day-old to 17 day-old,FC of house fly adults is in high level except the 13 day-old adults.According to AFDi of each takeoff or AFDu of each takeoff,the lowest of FC occurs at 21 day-old in male,and at 25 day-old in female;FC at 1 day-old is remarkably lower than that at 5 day-old both in female and male; in male the summit of FC occurs at 17 day-old, and the sub-summit of FC occurs at 9 day-old. According to AFV, both in male and female, FC at 5 day-old is lowest; FC with summit occurs at 9 day-old in male, but 2 summits of FC occur at 9 day-old and 17 day-old in female. Only according to AFDi, summit of FC in female occurs at 9 day-old, and sub- summit occurs on 17 day-old. The result shows that in both sexes the AFDi of 17 day-old adult is different with that of both 1 day-old and 21 day-old in extreme siginicance （ F（0.01） = 3.05 〉 F（6.102） = 2. 99 ）. The result also shows that the AFV of males is different with that of females significantly （F（0.05） =4.61 〉 F（1.108） =3.93）.