Sound transmission in the habitats of Japanese macaques and its possible effect on population differences in coo calls
Sound transmission in the habitats of Japanese macaques and its possible effect on population differences in coo calls
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日本猕猴栖息地的声音传播及其对咕咕叫声种群差异的可能影响
DOI：
10.1163/156853906778623617
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发表时间：
2006
期刊：
影响因子：
1.3
通讯作者：
N. Masataka
中科院分区：
文献类型：
--
作者：
Hideki Sugiura;Toshiaki Tanaka;N. Masataka
最近，据报道，在两个种群的日本猕猴（Macaca fuscata yakui），即大平山和屋久岛种群之间的叫声的声学特征不同。我们假设，这种差异可能是由于两个栖息地的声学环境的差异，并测量了纯音（250-8000 Hz）和两个种群在每个栖息地的咕咕叫的传输程度。在Ohirayama栖息地，较低的频率更有效地传输，和低音调咕咕叫的Ohirayama人口表现出显着更好的传输比高音呼叫的屋久岛人口。在屋久岛栖息地，两个种群的呼叫的传输程度没有显着差异。因此，大平山种群的叫声具有声学特征，可以在自己的栖息地更好地传播，这表明栖息地的声学可能是导致叫声之间种群差异的一个因素。
Recently, the acoustic features of coo calls were reported to differ between two populations of Japanese macaques (Macaca fuscata yakui), namely the Ohirayama and Yakushima populations. We hypothesized that this difference may arise through differences in the acoustic environments of the two habitats, and measured the degrees of transmission of pure tones (250-8000 Hz) and the coo calls of the two populations in each habitat. In the Ohirayama habitat, lower frequencies were transmitted more efficiently, and the low-pitched coo calls of the Ohirayama population showed significantly better transmission than the high-pitched calls of the Yakushima population. In the Yakushima habitat, the degrees of transmission of the calls of the two populations did not differ significantly. Therefore, the calls of the Ohirayama population possess acoustic features that allow better transmission in their own habitat, suggesting that the habitat acoustics may be a factor contributing to the population difference between the calls.