皮氏菊头蝠（Rhinolophus pearsoni）雌性成体5只和幼体2只采自贵州省贞丰县珉谷镇。采用超声波探测仪（D980, ULTRASOUND DETECTOR）接收皮氏菊头蝠的回声定位声波，转换到原频率的1/10后导入计算机，然后用专业声谱分析软件（Batsound 3110）进行分析。成蝠在飞行和悬挂状态下的声波结构相似，只是声波各项参数值略有不同：它们发射FM2CF2FM型声波，具有2～3个谐波，主频率在飞行时为56180±0162kHz，悬挂时为58105±0124kHz；声脉冲时间和间隔在飞行时分别为34162±5129ms和86150±19172ms，悬挂时分别为41108±5187ms和117129±66144ms；能率环飞行时为（44106±12158）%，悬挂时为（46100±24125）%。幼蝠声波为CF2FM型，谐波数为5～8个，主频率明显低于成体，FM带宽窄于成体，声脉冲时间和间隔短于成体，能率环低于成体。皮氏菊头蝠回声定位声波与年龄有关，这可能因成体的声波主要是探测食物和周围环境的详细信息，而幼体主要是与母蝠进行交流。

Frequencies of echolocation calls with maximum power of Himalayan leaf-nosed bats and Horsfield's leaf-nosed bats during searching phase were 74.1 and 92.1kHz, respectively. Head-body length, forearm length and body mass of Himalayan leaf-nosed bats were 82.9mm, 89.7mm and 59.1g, respectively; and the corresponding values of Horsfield's leaf-nosed bats were 68.4mm, 61.3mm and 19.7g, respectively. Echolocation frequency and the three parameters of body size, head-body length, forearm length and body mass, were all negatively correlated, and the correlation coefficients were -0.86, -1.58 and 2.19, respectively. This study thereby proved that echolocation frequency and body size were negatively correlated in the two species of hipposiderid bats.

长尾鼠耳蝠在飞行状态下发出的回声定位叫声为短调频型。叫声包括3个谐波，其中第1谐波最强且出现于所有的叫声中，频率起始于110.8：kHz，结束于50.2：kHz，持续3.5ms。第2，3谐波较弱，分别出现于50.0%和25.0%的叫声中，调频范围为138.4-116.6和193.6～170.8kHz。根据回声定位叫声的特点，推断长尾鼠耳蝠是在复杂环境中捕食地面昆虫

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。文中结合两种蝙蝠的形态及食性分析了回声定位对捕食生境及捕食策略的适应性。

The correlation between echolocation sound and morphological features of 18 species of bats, which are subordinated to 3 families including rhinolophidae, hipposideridae and vespertilionidae is studied. Pearson's correlation and regression analysis are adopted to analyze the correlations between noseleaf width (NW) and forearm length (FAL), NW and dominant frequency (DF), FAL and DF. The results show a positive correlation between NW and FAL and a negative correlation between NW and DF in Rhinolophidae. In each family, there is a negative correlation between FAL and DF. Some species have a higher or lower frequency than predicted one according to their body size. There are significant differences of the regression equation of FAL and DF among the three families. For the bats with the same body size, the order in frequency is: hipposiderid bats> rhinolophid bats)" vespertilionid bats. The mechanism of interrelation-ship between FAL and DF of bats, the reason why these deviations occur in correlativity of the three families and the mechanism of the in- teraction between morphological, physiological and ecological characteristics are discussed.