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机构地区:[1]陕西师范大学生命科学学院,西安710062 [2]陕西师范大学应用声学研究所,西安710062
出 处:《Zoological Research》1999年第4期278-283,共6页动物学研究(英文)
基 金:国家自然科学基金;陕西省自然科学基金
摘 要:对不同年龄的棕色田鼠(Microtusmandarinus)在不同状态下的发声进行了声谱分析,以研究其发声与行为之间的关系及其发育规律。棕色田鼠幼体的频谱图较简单,一般有1~2个波峰,主能峰频率(MPF,mainpeakfrequency)在1800Hz左右,且能量区为1个,位于中频区(1300~2500Hz);发声以单音节为主,持续40~100μs。亚成体频谱图较幼体复杂,为2个相距较近的能量区,均位于中频区(750~1320Hz,1431~1570Hz),MPF=945Hz;叫声单、双音均有,持续时间35μs,但间隔时间较长,约378μs。成体频谱图最复杂,常具多个能量峰,不同生活状态下差别较大,但均为2个能量区,1个位于中频区(550~4127Hz),1个位于高频区(5500~8125Hz),主能量峰频率(MPF)不同,持续时间差别较大。The sound spectrograph of mandarin vole in different age groups and behavioural states were analysed in order to study the regular pattern of the song's development and the relationship between the characters of calling songs and relative behaviours.Sonograms of juveniles were simple and the MPF (main peak frequency) was about 1?800?Hz.There was one energy range located in medium frequency range (1?300-2?500?Hz).The sonograms of sub adults were more complicated than those of juveniles and there were two energy ranges which both were located in medium frequency range (750-1?302?Hz,1?431- 1?570?Hz),MPF=945?Hz.The frequency spectrums of calling songs of adults were the most complicated and had several energy peaks.Although there was great difference in different conditions,two energy ranges were generally located in adults.One was located in medium frequency range (550-4?127?Hz) and the other was located in high frequency range (5?500- 8?125?Hz).The calls of different individuals in different behavioural states had different biological meanings.
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