摘要
本实验于2005年3～5月在哈尔滨北方森林动物园鸟类繁育中心进行。本文利用Avisoft Seslab软件绘制了白头鹤、灰鹤和蓑羽鹤繁殖期的鸣声声谱图,并对其鸣叫和鸣唱特征进行了比较分析。结果发现这3种鹤的鸣声基频均不超过2kHz,鸣叫在持续时间和频率上都显示出很大差异而鸣唱(对鸣)在持续时间上有较大差异,但在频率上都无明显差异。
Sonagrams of calls and songs of hooded, Eurasian and demoiselle cranes were plotted by Avisoft Sas - lab in Harbin North Forestry Zoo from March to May, 2005. Comparative analysis of sonagrams showed that the frequency of vocality of three cranes was all lower than 2kHz, yet the duration and frequency of calls of these three cranes were different distinctly. The duration of songs was different significantly, but no significant differences existed in frequency.
出处
《野生动物》
2007年第4期13-15,46,共4页
关键词
鸣声
白头鹤
蓑羽鹤
灰鹤
Sonogram
Call
Song hooded crane
Eurasian crane
Demoiselle crane
