两种鼠耳蝠回声定位叫声的比较  

COMPARISON OF THE ECHOLOCATION BEHAVIOUR OF TWO SPECIES OF MYOTIS BATS (MYOTIS)

作　　者：冯江[1] 李振江[1] 陈敏[1] 赵辉华[2] 张树义[2] 周江[3] 谢家骅[3] 

机构地区：[1]东北师范大学环境科学系,长春130024 [2]中国科学院动物研究所,北京100080 [3]贵州师范大学生物系,贵阳550000

出　　处：《兽类学报》2001年第4期259-263,共5页Acta Theriologica Sinica

基　　金：国家自然科学基金资助项目 (3 0 0 70 1 0 8);中国科学院"生命科学与生物技术创新青年科学家小组"资助项目

摘　　要：对鼠耳蝠属两种蝙蝠飞行状态下的声发射进行了比较研究。结果表明 :两种鼠耳蝠声发射信号的声谱图都呈调频 (FM)型 ,但在波形及频率范围上有明显差异。大鼠耳蝠(四川亚种 )的声脉冲宽度很小 ( 1 6± 0 3ms) ,能率环较低 ( 4 0 % ) ,其主频率 (DF =44 6± 4 3kHz)也较低 ;而水鼠耳蝠的声脉冲宽度较大 ( 4 2± 1 6ms) ,能率环 ( 9 6% )及主频率 (DF =83 0± 4 0kHz)也较高。The echolocation behaviors of two species of Myotis bats were compared when they flied Results revealed that: the sonagrams of the two bats were both FM form, but they had obvious difference in the structure of sonagram and frequency range The call duration of Myotis myotis luctuosus was shorter in the two species of bats (1 6±0 3 ms), its duty cycle was lower(4 0%), and its DF ( Dominant frequency ) was lower too (44 6±4 3 kHz) On the other hand, Myotis daubentoni ′s call duration was longer (4 2±1 6 ms), its duty cycle (9 6%) and DF (83 0±4 0 kHz) were higher as well The adaptations of echolocation to habitat and foraging strategy were also analyzed with a view to morphology and preys of these two species of myotis

关 键 词：鼠耳蝠 回声定位 捕食策略 比较 叫声 

分 类 号：Q959.833[生物学—动物学] Q958.1