臺灣國際科展

利用自製頻譜儀研究蜜蜂的發聲系統

科展類別
臺灣國際科展
屆次
2006年
科別
動物學
學校名稱
苗栗縣私立建台高級中學
指導老師
汪克仁
作者
張德惟
關鍵字
蜜蜂 發聲系統

摘要或動機

本研究利用麥克風與相關電腦設備,結合成自製頻譜儀用以觀測多種情況下蜜蜂的聲音頻率。若將蜜蜂的翅膀加以修剪,可測得有不同的頻率,解析頻率發現「翅膀為主要發聲點,但去除翅膀仍有高頻的發聲,且有三種不同的頻率。」將蜜蜂置於不同溫度下,解析頻率得知「一定溫度範圍內,溫度越高蜜蜂發聲頻率越高,反之亦然。」幼期在胸部塗顏料使絨毛無法生長,去除雙翅後,仍有頻率相近的發聲,得知「胸部絨毛不是造成高頻的原因。」靜置5分鐘,待蜜蜂停止發聲後,剪去腳、挑弄蜜蜂會發出高頻,得知「情緒是引起高頻的原因。」將蜜蜂的翅膀加以修剪,分別放回蜂窩口,發現「同一族群蜜蜂可用發聲頻率來辨別同伴。」比較義大利蜂及中華蜜蜂,得知「在多種情況下中華蜜蜂發聲頻率皆較義大利蜂高約70Hz。」因此本實驗之結論並不受蜂種影響。The study, capitalizing on a hand-made frequency divider, the microphone and computerized equipment, observes a variety of frequency of sound given off by bees. We read different frequencies from the apparatus when the bee’s wings were trimmed. Analyzing it, we discover that the bee’s winds are major source of its sound, but it still gives out high-frequency sound when the wings were completely cut off.” After analyzing the frequency, we discover that within a certain temperature range the higher the temperature is, the higher the frequency is, and vice versa. In one experiment, we painted the thorax at its pupal stage to stop the bee from growing fine hairs. Even though the wings had been removed, it still gave out high-frequency sound. We, therefore, conclude that fine hairs on the thorax have nothing to do with the making of the sound. In another experiment, bees were placed in an undisturbed environment until they are completely silent. Then, some of the bee’s legs were cut off, while others were provoked. And all the bees make high-frequency sound in the process. We make a hypothesis that emotion could be the cause of bees’ sound-making. The bees with different trimmed wings were put back to the beehive; the bees can still recognize one another by the different sound
frequencies. If we compare A. m. ligustica with A. c. cerana under different conditions, we find that the frequency from the latter is about 70 Hz higher than that form the former.


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