【摘要】 利用计算机声分析技术对双斑蟋 (Gryllusbimaculatus 1773)的召唤声、不同性比的求偶声和争斗声的结构、频谱与时域特征进行比较 ,以探讨鸣声特征与行为的关系。结果表明 :① 3种鸣声的脉冲时间长度(PL)、脉冲时间间隔 (IPI)、每个脉冲群 (PG)的脉冲数 (PN)、声脉冲组合形态和密度等基本相同。这些特征参数较为稳定 ,为种间鉴别因子 ,其中以IPI为最。②节奏 (Rh)、声长 (SL)、间歇 (IT)特征与蟋蟀的社会活动和个体活动有密切联系。从雄性单独生活时的召唤声到有雌性存在时的求偶声 ,每个节奏中的音节数逐渐增加 ,从单音节、双音节到多音节 ;SL、IT呈下降趋势。不同性比条件下 ,雄性数量明显影响鸣声特征。雄性数目增加 ,Rh、SL呈上升趋势 ;IT呈下降趋势。不同比例的雌性对雄性鸣声的影响无明显规律。③鸣声的频谱与时域呈一定对应关系。召唤声、求偶声和争斗声的脉冲能量主要集中在 1个能量区上 ,表现出种的同一性。更多还原

【Abstract】 The structure,power spectrum and temporal parameters of the calling sound, courting sound and wrestle sound (different sex ratio) of Gryllus bimaculatus were studied with acoustic analysis techniques of computer.The results show:① Pulse length (PL),inter pulse interval (IPI),pulse number of each pulse group (PN),and sounds pulse are almost the same in the calling sound, courting sound and wrestle sound.These features show the species recognition of factor.Among them,IPI is the most important.② Other features,such as rhythm, sound length, sound intermission have a close contact with the social and individual activity of Gryllus bimaculatus .From calling sound to courting sound,the syllable numbers of each rhythm is gradually increasing from one syllable, two syllables to many syllables.But sound intermission is decreasing.In the different sex rate,the number of males clearly affects the sound feature.When male increase,the rhythm and sound length increase,but sound intermission decrease.Different rate of female have no law.③ Power spectrum and temporal parameters of the sound has a corresponding relation.Various pulse energy of sounds,including calling sound, courting sound and wrestle sound assemble in one energy range.更多还原