Doctoral Dissertation Research: Food-Associated Calls in the Tufted Capuchin Monkey (Cebus apella)

博士论文研究：簇绒卷尾猴（Cebus apella）与食物相关的叫声

• 批准号: 9872138
• 负责人: Charles Janson
• 金额: $ 1.2万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2000-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9872138&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Research; Food; Associated

Food associated calls have been described in several species of primates. These vocalizations serve to attract other group members to the food source but their informational content, adaptive significance, and consequences for foraging animals are poorly understood. The ecological factors and evolutionary forces that led to the important role of intra-group exchange and cooperative foraging activities in human hunter-gatherer societies have been amply discussed, but few data from other primate species exist to provide a comparative framework. Understanding the adaptive significance of apparently cooperative foraging behaviors in non-human primates and other vertebrates will help to address these questions. This proposal is aimed at understanding the informational content and adaptive significance of food associated calls of tufted capuchin monkeys. The vocal repertoire of this species, in terms of acoustic structure and socioecological context of vocalizations, will be obtained from tape recordings of the animals' vocalizations in Iguazu National Park, Argentina. Field playback experiments will be used to understand the informational content of these vocalizations. Food discovery experiments using feeding platforms will be used to evaluate how the food-associated calls are affected by different socioecological contexts, and to explore the possibility of deceptive use of these signals by capuchins. Field experiments with models of predators also will be performed to test the hypothesis that food associated calls are given to reduce predation risk by attracting other groups members to the food source. The predictions of eight different hypotheses on the adaptive significance of these calls will be tested using the tape-recordings of vocalizations and the results of field experiments. The results obtained from this project will help to understand the origin of apparently altruistic behaviors that play an important role in the foraging activities of humans and non-human primates.

在几种灵长类动物中已经描述了与食物相关的叫声。 这些叫声可以吸引其他群体成员到食物源，但它们的信息内容，适应意义和觅食动物的后果知之甚少。 在人类狩猎采集社会中，导致群体内交换和合作觅食活动的重要作用的生态因素和进化力量已经得到了充分的讨论，但很少有其他灵长类物种的数据可以提供一个比较框架。 了解非人类灵长类动物和其他脊椎动物明显合作觅食行为的适应意义将有助于解决这些问题。 本研究旨在了解卷尾猴食物相关叫声的信息内容和适应意义。 这个物种的声音库，在声学结构和发声的社会生态环境方面，将从阿根廷伊瓜苏国家公园的动物发声的录音带中获得。 现场回放实验将用于了解这些发声的信息内容。 使用喂食平台的食物发现实验将用于评估食物相关的呼叫如何受到不同社会生态环境的影响，并探索卷尾猴欺骗性使用这些信号的可能性。 还将进行捕食者模型的实地实验，以检验以下假设：食物相关的呼叫通过吸引其他群体成员到食物源来降低捕食风险。 八个不同的假设的预测，这些呼吁的适应意义将使用录音的发声和现场实验的结果进行测试。 从这个项目中获得的结果将有助于理解在人类和非人类灵长类动物的觅食活动中起重要作用的明显利他行为的起源。