Social Factors Influence the Acoustic Variability in the Long‐distance Calls of Male Chimpanzees
Social Factors Influence the Acoustic Variability in the Long‐distance Calls of Male Chimpanzees
复制标题
社会因素影响雄性黑猩猩远距离叫声的声学变异
DOI：
10.1111/j.1439-0310.1994.tb01012.x
复制
发表时间：
2010
期刊：
影响因子：
1.7
通讯作者：
Kari L. Brandt
中科院分区：
文献类型：
--
作者：
J. Mitani;Kari L. Brandt
研究了雄性黑猩猩种属典型长距离叫声的声学变异。13个声学特征的分析表明，呼叫内比个体之间的变化。虽然只有有限的数量的声学变异归因于不同的人群，判别函数分析证实，男性从两个人口产生声学上可区分的电话。进一步的研究表明，社会因素可能有助于个人之间和内部的声学变化的模式。矩阵排列测试显示，男性花在一起的时间和呼叫相似性的措施之间的正相关。个体之间的声音相似性似乎是由于一个动态的过程，涉及合唱行为：男性相匹配的声学特性，彼此的发声时，一起打电话。合唱也可能影响个体内部声音变化的程度。经常与他人合唱的男性比合唱次数较少或单独呼叫的个体产生更多的可变呼叫。
Acoustic variability in the species-typical long-distance calls of male chimpanzees was investigated. Analysis of 13 acoustic features revealed that calls varied more within than between individuals. Although only a limited amount of acoustic variability was attributable to different populations, discriminant-function analysis confirmed that males from two populations produce acoustically distinguishable calls. Additional investigation suggested that social factors may contribute to the patterns of acoustic variation both between and within individuals. Matrix-permutation tests revealed a positive association between the amount of time males spent together and a measure of call similarity. Vocal similarities between individuals appeared to result from a dynamic process involving chorusing behaviour: males matched the acoustic characteristics of each other's vocalizations when calling together. Chorusing may also affect the degree of within-individual acoustic variation in calls. Males who chorused often with others produced more variable calls than individuals who chorused less often or called alone.