【摘要】：根據(jù)頻率特性對(duì)圈養(yǎng)寬吻海豚(Tursiops truncatus)在自由游動(dòng)和訓(xùn)練兩種實(shí)驗(yàn)條件下的聲通訊信號(hào)進(jìn)行分類,并利用雙尾t檢驗(yàn)統(tǒng)計(jì)分析方法對(duì)兩種條件下的信號(hào)聲譜參數(shù)進(jìn)行統(tǒng)計(jì)比較。結(jié)果顯示,寬吻海豚在自由狀態(tài)下通訊信號(hào)的種類多并以正弦型為主,而訓(xùn)練期間的通訊信號(hào)則大多數(shù)為上掃頻類。此外,統(tǒng)計(jì)分析表明起始頻率不能反映這兩種狀態(tài)的不同(p=0.22)。結(jié)束頻率、最小頻率、最大頻率、頻率變化量、拐點(diǎn)數(shù)、環(huán)形數(shù)、階數(shù)、波形數(shù)和周期等則顯示了兩種狀態(tài)顯著的差異性(p0.05)。結(jié)果為今后海豚聲行為研究提供一定的科學(xué)參考和基礎(chǔ)。
[Abstract]:According to the frequency characteristics, the acoustic communication signals of captive dolphin (Tursiops truncatus) under two experimental conditions of free walk and training were classified, and the acoustic spectrum parameters of the two conditions were statistically compared by using the double tail t test statistical analysis method. The results show that there are many kinds of communication signals in the free state and the sinusoidal type is the main type, while the communication signals during the training period are mostly the up-sweep type. In addition, the statistical analysis shows that the initial frequency does not reflect the difference between the two states (p0. 22). The end frequency, the minimum frequency, the maximum frequency, the frequency variation, the inflection point number, the ring number, the order, the waveform number and the period show the significant difference between the two states (p0.05). Results the results provide a scientific reference and basis for the future study of dolphin sound behavior.
【作者單位】： 廈門大學(xué)水聲通信與海洋信息技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(41276040,11174240) 海洋公益性行業(yè)科研專項(xiàng)(201105011-3) 福建省自然科學(xué)基金(2012J06010,2060203)資助
【分類號(hào)】：TN911.7

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