Flexible use of simple and combined calls in female Campbell's monkeys
Flexible use of simple and combined calls in female Campbell's monkeys
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DOI：
10.1016/j.anbehav.2018.05.014
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发表时间：
2018-07-01
期刊：
影响因子：
2.5
通讯作者：
Zuberbuhler, Klaus
中科院分区：
文献类型：
--
作者：
Coye, Camille;Ouattara, Karim;Zuberbuhler, Klaus
呼叫组合使动物能够通过声音上不灵活的元素来扩展小曲目的交流能力。在坎贝尔猴（Cercopithecus Campbelli）中，雄性拥有一小部分叫声，这些叫声可以合并成一个声音上不变的后缀，并连接成各种序列，主要是为了响应外部干扰。成年女性的声音曲目虽然丰富得多，包含警报和各种社交叫声，但对其研究较少。特别是，雌性拥有低音调的接触叫声，可以单独发出，也可以与高音调的拱形单位合并发出。与简单呼叫相比，组合联系人呼叫的身份信息更丰富且更容易检测。在这里，我们研究了决定单一和组合话语产生的社会生态因素，发现当身份相关时，例如在混合物种协会和社会重要的声音交流期间，组合话语更常见。相比之下，单次叫声主要在捕食风险较高时使用，作为该物种通常神秘的反捕食者策略的一部分。我们根据有关组合信号演化的当前理论讨论这些发现。 (C) 2018 年动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Call combinations allow animals to expand the communicative power of small repertoires with acoustically inflexible elements. In Campbell's monkeys, Cercopithecus campbelli, males possess a small repertoire of calls that can be merged to an acoustically invariable suffix and which are concatenated into various sequences, mainly in response to external disturbances. The vocal repertoire of adult females has been less well studied although it is much richer, containing both alarm and various social calls. In particular, females possess a low-pitched contact call, produced either alone or merged with a high-pitched, arched unit. Combined contact calls are identity-richer and easier to detect than simple calls. Here, we investigated the socioecological factors that determined the production of single and combined utterances and found that combined utterances were more common when identity was relevant such as in mixed-species associations and during socially important vocal exchanges. In contrast, single calls were used mainly when predation risk was high, as part of this species' generally cryptic antipredator strategy. We discuss these finding in the light of current theories regarding the evolution of combinatorial signalling. (C) 2018 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.