›› 1993, Vol. 36 ›› Issue (2): 150-157.

• 研究论文 • 上一篇    下一篇

楝星天牛胸部摩擦和鞘翅振动发声及其声学特性的研究*

程惊秋   

  • 出版日期:1993-05-20 发布日期:1993-05-20

A STUDY ON THE ACOUSTICAL PROPERTIES OF THORACIC STRIDULATION AND ELYTRAL VIBRATION SOUNDING IN BEETLEANOPLOPHORA HOR SFIELDI (HOPE) (COLEOPTERA:CERAMBYCIDAE)

CHENG JING-QIU   

  • Online:1993-05-20 Published:1993-05-20

摘要: 楝星天牛Anoplophora horsfieldi(Hope)成虫可借两种不同的方式发声: 1.胸部摩擦发声;2.鞘翊振动发声。胸部摩擦发声可连续进行,具有抗拒敌害和种内通讯的生物学意义;鞘翅振动发声为断续产生,受外界刺激而诱发,主要与抗拒敌害有关。测定表明,胸部摩擦声由多个音组连续组成,每一音组的持续时间为1100-1 6000ms,依次由抬头声音节(持续384±22ms,含有250-350个脉冲列)、间隔1(270-600ms)、低头声音节(382±16ms,250-350个脉冲列)和间隔2(80-360ms)组成。 抬头声音节的功率谱由基本音及其分音组成,基本音为信号能量的主要部分,其主峰频率为742±30Hz(雄)和603±34HZ(雌)。鞘翅振动声由间隔不等的,7-9个脉冲列组成,脉冲列的振幅较大、频率较高,持续约7-10ms。功率谱图上虽然脉冲列的频率分布于0-3100Hz,但能量主要集中在850-1050Hz内。与胸部摩擦声相比,鞘翅振动声的能量更高、释放更突然,是一种更为有效的拒敌性行为。

关键词: 天牛科, 摩擦发声, 振动发声

Abstract: The adult bee, le Anoplophora horsfieldi (Hope) adopts two different ways in sound production, I.e, thoracic stridulation and elytral vibration. The thoracic stridulation sounding(TSS) may be produced successively and plays the role of both enemy repelling and intraspe cific communication. The elytral vibration sounding (EVS), which is produced non-succes sively and induced by external stimulus, has the role mainly for enemy repelling. The TSS consists of a series of sound groups, each of which, running about 1100 to 1600 ms, ordinally consists of up-stroke syllable (US) (384±22 ms, 250-350,) pulse train(PT) interval 1 (270-600 ms), down-stroke syllable (DS) (382±16 ms, PT 250-350) and interval 2 (80-360 ms). The power-spectrum of US is formed by the basic sound (BS) and its partial. The BS gives the main part of the signal power and the main peak frequency at 742±30 Hz in males and 603±34Hz in females. The EVS consists of 7 to 9 PT with higher amplitude and frequency and running about 7 to 10 ms. Though the frequencies of EVS's PT distribute from 0 to 3100 Hz in the power-spectrum, the power mainly lies within 850 to 1050 Hz. The EVS of the beetle is a more effective display in enemy repelling by its higher energy content and sudden release as compared with TSS.

Key words: Anoplophora horsfieldi——stridulation——elytral vibration