【摘要】 毛腿鼠耳幅(Myotisfimbriatus)为中国特有蝙蝠.在飞行及悬挂状态下发出的回声定位叫声为调频声.叫声主要包括2个谐波,其中第1谐波较强,飞行时第1谐波调频范围为39～93kHz,第2谐波调频范围为70～122kHz;叫声的持续时间10 6ms 结合回声定位叫声的声波特点分析,推断毛腿鼠耳幅多生活于阴暗潮湿、通风良好的山洞中,飞行速度较慢,灵活性较差;多在树林的边缘或上空、农田、草地或水面上等不太复杂的近距离环境中捕食,捕食方式可能为空中捕食或掠食,捕食对象是中等大小的静止猎物,主要是双翅目的昆虫.更多还原

【Abstract】 Myotis fimbriatusis is the endemic species of China.The echolocation calls during flying and hanging are FM component,including 2 harmonics,of which the main energy concentrate in the fundamental harmonic.During Myotis fimbratusis fly,the frequency range of the fundamental harmonec is from 39 kHz to 93 kHz and that of the second harmonic is from 70 kHz to 122 kHz.The mean duration of calls is 10.6 ms.According to the analysis on the echolocation calls,it is concluded that most of Myotis fimbriatusis live in the dark and dark caves with good aeration.They often forage in the open air such as farmlands,grasslands and water surface,flying slowly and unskillfully.The foraging style is catching insects in the air and gleaning from the surface.The attacked targets of Myotis fimbratusis are stationary insects,mainly including Diptira insects.更多还原