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首页> 外文期刊>American journal of primatology >Macrogeographical Variability in the Great Call of Hylobates agilis: Assessing the Applicability of Vocal Analysis in Studies of Fine-Scale Taxonomy of Gibbons
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Macrogeographical Variability in the Great Call of Hylobates agilis: Assessing the Applicability of Vocal Analysis in Studies of Fine-Scale Taxonomy of Gibbons

机译：刺蛇亚纲的宏大地理变异：评估语音分析在长臂猿精细分类学研究中的适用性

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摘要

Vocal characteristics have been used extensively to distinguish different taxonomic units of gibbons (family Hylobatidae). The agile gibbon (Hylobates agilis) has a disjunct distribution range in the Southeast Asian archipelago (remnants of the former Sunda landmass), and populations on different islands are currently recognized as distinct subspecies or even species. We recorded great calls from female agile gibbons from two populations on Sumatra and two populations on Borneo and examined the vocal variability on four levels: within-individuals, between-individuals, between-populations and between-islands. The primary objective was to evaluate the effect of geographical isolation on variability in song pattern and to test whether proposed island-specific song characteristics exist, reflecting evolutionary divergence between Sumatran and Bornean agile gibbons. One hundred great calls were recorded from 20 females and analyzed for 18 spectral and temporal acoustic parameters. Principal component analysis followed by a nested ANOVA on components revealed a complex pattern of song variability not likely to reflect taxonomic or evolutionary relationship. We found no evidence that Sumatran and Bornean agile gibbons have evolved different vocal characteristics, refuting a distinction between them based on vocal characteristics. A high level of plasticity was found in great calls from the same individual, and generally the inferred pattern of variability suggested that ecological or social factors may confound any genetically based island dialects.
机译：人声特征已被广泛用于区分长臂猿（家庭长臂猿科）的不同分类单位。敏捷的长臂猿（Hylobates agilis）在东南亚群岛（前Sun他州陆地遗留物）中的分布范围不同，并且目前将不同岛屿上的种群视为不同的亚种甚至物种。我们记录了来自苏门答腊岛上两个种群和婆罗洲上两个种群的雌性长臂猿的强烈呼声，并在四个层次上检查了声音的变异性：个体内部，个体之间，种群之间和岛屿之间。主要目的是评估地理隔离对歌曲模式变异的影响，并测试是否存在建议的岛屿特定歌曲特征，以反映苏门答腊和婆罗洲敏捷长臂猿之间的进化差异。记录了来自20位女性的一百个电话，并分析了18个频谱和时间声学参数。主成分分析以及随后的关于成分的嵌套方差分析表明，歌曲变异性的复杂模式不太可能反映分类或进化关系。我们没有发现证据表明苏门答腊和婆罗洲敏捷长臂猿进化出不同的声音特征，驳斥了基于声音特征的区别。在同一个人的高呼声中发现了很高的可塑性，通常推断的变异性模式表明，生态或社会因素可能会使任何基于遗传的岛屿方言混淆。

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