Vocal Development of Horsfield's Leaf-Nosed Bat Pups (Hipposideros larvatus)

Vocal Development of Horsfield's Leaf-Nosed Bat Pups (Hipposideros larvatus)
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霍斯菲尔德叶鼻蝙蝠幼崽(Hipposideros larvatus)的声音发育

DOI:
10.3161/15081109acc2019.21.1.016
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发表时间:
2019-10
影响因子:
1
通讯作者:
Feng Jiang
Feng Jiang
中科院分区:
生物学4区
文献类型:
--
作者:
Chi Tingting;Liu Muxun;Tan Xiao;Li Yu;Xiao Yanhong;Sun Keping;Jin Longru;Feng Jiang

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蝙蝠是研究野生哺乳动物系统中语音相关特征的生物学基础和进化的一种有吸引力的动物。我们调查了声音的发展Horsfield的叶鼻蝙蝠幼崽,蹄蝠larvatus。我们发现,新生蝙蝠发出许多类型的隔离呼叫,包括向下频率调制(DFM),拱形频率调制(AFM),向上频率调制(UFM)等。欧几里德距离测量的逐渐减小揭示了幼犬隔离呼叫(DFM,AFM,UFM)逐渐转变为成年人的社会呼叫。此外,其中一种隔离调用类型(UFM类型)对单个签名进行编码。相比之下,我们报告说,早期回声定位电话和隔离电话平行发展。随着幼犬的发育,早期的回声定位叫声逐渐成熟,并转变为类似成年人的回声定位叫声。回声定位叫声的间隔和持续时间减少,而调频的峰值频率和带宽增加。
Bats are an appealing animal for investigating the biological basis and evolution of speech-related traits in wild mammal systems. We investigated vocal development in Horsfield's leaf-nosed bat pups, Hipposideros larvatus. We found that newborn bats emit many types of isolation calls, including downward frequency modulation (DFM), arched frequency modulation (AFM), upward frequency modulation (UFM), and others. The gradual decrease of Euclidean distance measurements revealed that pup isolation calls (DFM, AFM, UFM) gradually change into adult social calls. Furthermore, one of the isolation call types (UFM type) encoded an individual signature. By contrast, we report that early echolocation calls and isolation calls develop in parallel. As pups develop, early echolocation calls gradually mature and transform into adult-like echolocation calls. The interval and duration of echolocation calls decreases, while the peak frequency and bandwidth of frequency modulation increases.
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