虎皮鹦鹉声行为的研究

本文对虎皮鹦鹉(Melopsittacus undelafus)不同声行为叫声的声学特性进行了定量分析,为地震前鸟类声行为的定量观测和鸟声学研究提供了新的资料和认识。 虎皮鹦鹉求偶、离群、受伤及其同伴叫声中变音调声段的声学特性有明显的差异。但是抗议叫声具有鸟类警戒叫声的一般特征,即都有时间图样基本相同的音节组成,每个音节含有若干个调幅脉冲列,其频带和声强都明显加宽和增大。 雏鸟不同的声行为叫声都是简单结构。与成鸟叫声相比较,尤其是抗议叫声呈现明显的发育过程。

A STUDY ON THE ACOUSTIC BEHAVIOR IN BUDGERIGAR (MELOPSITTACUS UNDELAFUS)

Quantitative analyses of the acoustic properties of different behavior calls in budgerigar are reported. Some new data and knowlege for the quantitative observation of the acoustic behavior in birds prior to earthquakes and for the bird acoustic study are provided in this paper.In the budgerigar, signicant differences occur red in the acoustic characterstics of vari-ton-ed sound sections in the calls of courtship, isolation, and of an injured male birds and its companion female birds. But protest calls possessed the common characterstic of alarm calls in birds, i.e. they were all composed of syllables that the time pattern was basically identical, every syllable contained several amplitude-modulation pulse trains, and their band and intensity were obviously widened and increased.In the nestling birds, different acoustic behavior calls had all simple structures. In comparison with adult bird calls, especially the pro'est calls, presented remarkable development process.