4.3 Article

Chimpanzee pant-hoots encode individual information more reliably than group differences

期刊

AMERICAN JOURNAL OF PRIMATOLOGY
卷 84, 期 11, 页码 -

出版社

WILEY
DOI: 10.1002/ajp.23430

关键词

chimpanzee; dialects; pant-hoot; vocal learning

类别

资金

  1. Jane Goodall Institute
  2. University of Minnesota
  3. Twise Victory BV
  4. BBSRC studentship
  5. Leakey Foundation General Grant
  6. American Society of Primatologists General Small Grant
  7. BBSRC project grant

向作者/读者索取更多资源

Vocal learning is a fundamental feature of human speech but seems more limited in nonhuman primates. Chimpanzees have some capacity for vocal learning, but regional variation is not significant, suggesting extensive vocal learning emerged after the divergence of Homo and Pan lineages.
Vocal learning, the ability to modify the acoustic structure of vocalizations based on social experience, is a fundamental feature of speech in humans (Homo sapiens). While vocal learning is common in taxa such as songbirds and whales, the vocal learning capacities of nonhuman primates appear more limited. Intriguingly, evidence for vocal learning has been reported in chimpanzees (Pan troglodytes), for example, in the form of regional variation (dialects) in the pant-hoot calls. This suggests that some capacity for vocal learning may be an ancient feature of the Pan-Homo clade. Nonetheless, reported differences have been subtle, with intercommunity variation representing only a small portion of the total acoustic variation. To gain further insights into the extent of regional variation in chimpanzee vocalizations, we performed an analysis of pant-hoots from chimpanzees in the neighboring Kasekela and Mitumba communities at Gombe National Park, Tanzania, and the geographically distant Kanyawara community at Kibale National Park, Uganda. We did not find any statistically significant differences between the neighboring communities at Gombe or among geographically distant communities. Furthermore, we found differences among individuals in all communities. Hence, the variation in chimpanzee pant-hoots reflected individual differences, rather than group differences. Thus, we did not find evidence of dialects in this population, suggesting that extensive vocal learning emerged only after the lineages of Homo and Pan diverged.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据