群居型与散居型东亚飞蝗飞行能力的比较研究

在室内对群居型和散居型的东亚飞蝗成虫连续悬吊飞行测试10h,结果表明:群居型东亚飞蝗具有较强的飞行能力,最远的累计飞行距离可达65km,累计飞行时间超过7h。不同日龄的成虫飞行能力有显著差异,羽化后4日龄成虫的飞翔能力较弱,以10日龄成虫的飞行能力最强;13日龄已具下降趋势。雌雄个体间飞翔能力无显著差异。散居型成虫不具备远距离飞行的能力,各日龄成虫累计飞行距离和飞行时间均极显著短于同日龄的群居型个体。

Comparative studies on the flight ability of the social type and scattered type of Locusta migratoria manilensis

During a test over 10 hours,the social type of Locusta migratoria manliensis exhibited stronger flight ability.The longest flight distance was about 65 kilometers,and the total flight duration was more than 7 hours.There was significant difference in flight ability between adults of different ages in days.The 4-day old adults exhibited a little flight ability,while the 10-day old ones possessed the strongest flight ability.The flight ability declined from 13 days of age.Male and female individuals showed no significant difference.The scattered type was not fit for long-distance migration.Compared with social type,the total flight distance and duration of the scattered type were significantly shorter.