Buttress drumming by wild chimpanzees: Temporal patterning, phrase integration into loud calls, and preliminary evidence for individual distinctiveness
Buttress drumming by wild chimpanzees: Temporal patterning, phrase integration into loud calls, and preliminary evidence for individual distinctiveness
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DOI：
10.1007/bf02557572
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发表时间：
1998-10-01
期刊：
影响因子：
1.7
通讯作者：
Boesch, C
中科院分区：
文献类型：
--
作者：
Arcadi, AC;Robert, D;Boesch, C
野生黑猩猩（Pan troglodytes）通过用手和脚敲击树木的扶壁产生低频声音，人类在至少1公里外都能听到。这种扶壁鼓点发生在离散的快速传递节拍，通常伴随着“喘气”，物种特有的长距离发声。雄性黑猩猩的个体差异（P. t。verus）击鼓期间进行了为期6个月的实地研究在泰国家公园，象牙海岸。对6名成年男性击鼓记录的分析显示，个体之间在三个声学特征上存在显着差异：（1）节拍间间隔的平均持续时间;（2）每回合的平均节拍数;（3）平均回合持续时间。初步分析表明，个人不同的倾向，提供鼓节拍在时间上接近对分离较长的interbeat间隔。定性研究还表明，个人可能会有所不同，在时间整合鼓到喘气鸣叫发声。这些结果表明，可能有声学线索可供黑猩猩识别看不见的男性由他们的击鼓表演单独。泰黑猩猩的击鼓也与黑猩猩的击鼓进行了比较（P. t。来自Kibale国家公园的Kanyawara研究小组。乌干达与泰黑猩猩相比，神原黑猩猩似乎更经常地在没有发声的情况下打鼓。当他们一起打鼓和发声时，Kanyawara黑猩猩似乎比Tdi：黑猩猩更晚地将他们的鼓声整合到相关的喘息声中。这些结果表明，种群间的变化存在的可能性，在黑猩猩扶壁鼓。
Wild chimpanzees (Pan troglodytes) generate low-frequency-sounds that are audible to humans from a distance of at least 1 km away by hitting the buttresses of trees with their hands and feet. This buttress drumming occurs in discrete bouts of rapidly delivered beats that usually accompany "pant hoots," the species-specific long-distance vocalization. Individual differences in male chimpanzee (P.t. verus) drumming were investigated during a 6-month field study in the Tai National Park, Ivory Coast. Analysis of drumming bouts recorded from six adult males revealed significant differences between individuals in three acoustic features: (1) mean duration of inter-beat interval; (2) mean number of beats per bout; and (3) mean bout duration. Preliminary analysis indicated that individuals differ in their tendency to deliver drum beats in temporally close pairs separated by longer interbeat intervals. Qualitative examination also suggested that individuals may differ in the temporal integration of drumming into the pant hoot vocalization. These results suggest that there may be acoustic cues available for chimpanzees to recognize unseen males by their drumming performances alone. Drumming by Tai chimpanzees was also compared to drumming by chimpanzees (P.t. schweinfurthii) from the Kanyawara study group in Kibale National Park. Uganda. The Kanyawara chimpanzees appeared to drum more often without vocalizing than did the Tai chimpanzees. When they did drum and vocalize together, the Kanyawara chimpanzees appeared to integrate their drumming later into the associated pant hoots than did the Tdi:chimpanzees. These results suggest the possibility that interpopulation variation exists in chimpanzee buttress drumming.