Geographical and individual variation in echolocation calls of the intermediate leaf-nosed bat, Hipposideros larvatus
Geographical and individual variation in echolocation calls of the intermediate leaf-nosed bat, Hipposideros larvatus
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中间叶鼻蝠 Hipposideros larvatus 回声定位呼叫的地理和个体差异
DOI：
10.1111/j.1439-0310.2010.01785.x
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发表时间：
2010-08-01
期刊：
影响因子：
1.7
通讯作者：
Feng, Jiang
中科院分区：
文献类型：
--
作者：
Jiang, Tinglei;Liu, Rong;Feng, Jiang
尽管有越来越多的异域和同域的例子被记录在案，但河马科蝙蝠回声定位呼叫频率变化的原因和意义还没有得到很好的理解。我们研究了在广泛的地理范围内，由中间叶鼻蝙蝠，Hipposideros larvatus发出的回声定位呼叫的静息频率（RF）的变化模式。数据挖掘技术和Kruskal-Wallis检验均显示H.幼虫在殖民地之间，这种变化与地理距离，而不是身体的大小。此外，我们发现，个体之间的高度变异隐藏在地理变异之下。结果支持随机文化漂移的影响，并挑战猎物检测假说。此外，当地岛屿殖民地之间的声学差异可能表明一种语音方言。我们发现每个H. larvatus似乎保持了一个“私人带宽”，这可以用于殖民地身份和个体通信，从而帮助个体和殖民地获得许多健身益处。
The cause and significance of variation in echolocation call frequency within hipposiderid bats is not well understood despite an increasing number of allopatric and sympatric examples being documented. We examined variation patterns in the resting frequency (RF) of echolocation calls emitted by the intermediate leaf-nosed bat, Hipposideros larvatus, on a broad geographical scale. Data mining technology and Kruskal-Wallis test both showed substantial variation with a longitudinal pattern in RF in H. larvatus among colonies, and this variation was associated with geographical distance and not body size. In addition, we found that a high degree of variability between individuals was hidden under the geographical variation. The results support an effect of random cultural drift, and challenge the prey detection hypothesis. Moreover, an acoustic difference among local island colonies may be indicative of a vocal dialect. We found that each colony of H. larvatus seems to maintain a 'private bandwidth', which could be used for colony identity and individual communication thus helping individuals and colonies to get a number of fitness benefits.