Université de Rennes 1, Unité Mixte de Recherche 6552 Centre de Recherche Scientifique, EthoS - Ethologie Animale et Humaine, Station Biologique 35380 Paimpont, France.
J Acoust Soc Am. 2011 May;129(5):3341-52. doi: 10.1121/1.3569704.
Although the vocal repertoire of nonhuman primates is strongly constrained by genetic, a growing number of studies evidence socially determined flexibility. According to Snowdon et al. [Social Influences on Vocal Development (University Press, Cambridge, 1997), pp. 234-248], calls with a higher social function (affiliative or agonistic) would be expected to show more flexibility than lesser social calls. Owren and Rendall [Evol. Anthropol., 10, 58-71 (2001)] nuanced this by defending a structure-function relationship. Calls with particular acoustic properties, which directly influence the listener's affect, would be less individually distinctive than calls involved in an affective conditioning process. These hypotheses were tested in Campbell's monkeys using telemetric recordings. This is the first detailed description of female Campbell's monkeys' vocal repertoire emphasizing a possible relationship between social function and flexibility level. The vocal repertoire displayed an "arborescent" organization (call type, subtype, and variants). The highest number of subtypes and the greatest acoustic variability, within and among individuals, were found in calls associated with the highest affiliative social value. However, calls associated with agonism were the most stereotyped, whereas less social alarm calls were intermediate. This only partially validate the hypothesis of Snowdon et al. In accordance with Owren and Rendall's hypotheses, the level of individual distinctiveness was minimum for noisy pulsed calls and maximum for calls involved in affiliative interactions.
虽然非人类灵长类动物的发声曲目受到遗传的强烈限制，但越来越多的研究证明了社会决定的灵活性。根据 Snowdon 等人的研究[《社会对发声发展的影响》（剑桥大学出版社，1997 年），第 234-248 页]，具有更高社会功能（亲和性或攻击性）的叫声应该比较低社会等级的叫声表现出更大的灵活性。Owren 和 Rendall [《进化人类学》，10，58-71（2001）] 通过捍卫结构-功能关系来调和这一点。具有特定声学特性的叫声，这些特性直接影响听众的情感，其个体独特性将不如参与情感条件反射过程的叫声。这些假设在坎贝尔氏猕猴中通过遥测记录进行了测试。这是首次详细描述雌性坎贝尔氏猕猴的发声曲目，强调了社会功能和灵活性水平之间可能存在的关系。发声曲目呈现出“树状”组织（叫声类型、亚型和变体）。在个体内部和个体之间，与最高亲和性社会价值相关的叫声具有最多的亚型和最大的声学可变性。然而，与攻击性相关的叫声最刻板，而较少的社会警报叫声则处于中间状态。这只部分验证了 Snowdon 等人的假设。与 Owren 和 Rendall 的假设一致，对于嘈杂的脉冲叫声，个体独特性水平最低，而对于参与亲和性相互作用的叫声，个体独特性水平最高。
