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Discrimination of Japanese whitefly species based on their mating signals

基于交配信号的日本粉虱种类识别

基本信息

批准号：
09660054
负责人：
KANMIYA Kenkichi
金额：
$ 1.98万
依托单位：
Kurume University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09660054/
关键词：
whitefly Agricultural pest insects mating signals acoustic analyses taxonomic key コナジラミ類

项目摘要

Whitefly courtship signals and mating behavior on Japanese 22 species of 15 genera were investigated based on synchronous audio-video recordings. All males examined were found to produce species-specific substrate-borne vibratory signals by rapidly oscillating their abdomen in a stereotyped rhythms. Females in some species also produced replying signals against the males, and males in some species produced periodically placed wing flicking in their courtship sequences. Signals were classified into 3 categories, 1) a single burst or a series of continuous burst, 2) a train of pulses, and 3) bursts and pulses mixed. All 22 species were clearly discriminated by their time-domain and frequency-domain acoustic properties. Male vibratory signals were assumed to be a species-specific cue towards female in the premating behavior to the necessity of sexual stimulation for females. Therefore, these acoustic data could be used to separate the whitefly species precisely. The present research emphasize their significant availability for determining agricultural pest whiteflies and other Japanese species which were said to be the most difficult insect group for specific identification. A key to species adopting these acoustic characteristics was shown for the first time accompanying with their pupal features.

利用同步音视频记录技术对日本15属22种粉虱的求偶信号和交配行为进行了研究。研究发现，所有男性产生的物种特异性基板传播的振动信号，快速振荡他们的腹部在一个刻板的节奏。有些物种的雌性也会发出回应雄性的信号，有些物种的雄性在求偶过程中会周期性地拍打翅膀。信号分为3类，1）单个突发或一系列连续突发，2）脉冲串，以及3）突发和脉冲混合。所有22种都明确区分其时域和频域的声学特性。雄性振动信号被认为是一种种特定的线索，在交配前的行为，对女性的性刺激的必要性。因此，这些声学数据可以用来精确地分离粉虱物种。本研究强调了它们在确定农业害虫粉虱和其他日本物种方面的重要可用性，这些昆虫被认为是最难进行特异性鉴定的昆虫群。首次给出了一个识别具有这些声学特征的种的关键，并附有蛹的特征。