Use of spatial, visual, and olfactory information during foraging in wild nocturnal and diurnal anthropoids:: A field experiment comparing Aotus, Callicebus, and Saguinus
Use of spatial, visual, and olfactory information during foraging in wild nocturnal and diurnal anthropoids:: A field experiment comparing Aotus, Callicebus, and Saguinus
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DOI：
10.1002/ajp.20014
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发表时间：
2004-03-01
影响因子：
2.4
通讯作者：
Garber, PA
中科院分区：
文献类型：
--
作者：
Bicca-Marques, JC;Garber, PA
在进化的早期，灵长类动物的祖先从夜间活动的生态位辐射到白天活动的生态位。夜间觅食与白天觅食的不同之处在于光线和颜色线索的可用性，以及气味分子在树冠中的运动。在这项研究中，我们比较了夜间和日间新世界猴子使用感知线索的能力（即，食物的视觉或气味）和空间信息（地点可预测性）在斑块内觅食决策。对野生夜猴（Aotus nigriceps）、绢毛猴（Saguinus imperator imperator）和绢毛猴（S. fuscicollis weddelli）和titi猴（Callicebuscupreus）。我们的研究设计包括在研究组的家庭范围内建造喂食站。每个喂食站由八个视觉上相同的喂食平台组成，呈圆形排列。在所有测试设置中，每个喂食站的两个平台包含食物奖励（香蕉），其余六个平台包含假的。奖励（黄色塑料或难以接近的香蕉）。在夜间猴子实验中，每个喂食平台都被40 W的红色灯泡照亮，以帮助研究人员观察它们的行为。当奖励地点的位置随着时间的推移是可预测的，在所有四个物种的个人成功地重新定位食物奖励完全基于空间信息。每个物种也都成功地利用视觉信息来区分真实的和虚假的食物奖励。然而，只有夜猴和一组皇帝绢毛猴单独使用嗅觉信息来定位食物奖励。总的来说，在这些实验中，该物种的表现并没有明显区分Aotus和昼行的新世界灵长类动物。(C)2004 Wiley-Liss，Inc.
Early in their evolution, the ancestors of anthropoid primates radiated from a nocturnal to a diurnal niche. Foraging during the night differs from foraging during the day in terms of the availability of light and color cues, and in the movement of odor molecules through the canopy. In this study, we compared the ability of nocturnal and diurnal New World monkeys to use perceptual cues (i.e., the sight or smell of food) and spatial information (place predictability) in within-patch foraging decisions. An experimental field study was conducted on wild groups of night monkeys (Aotus nigriceps), tamarins (Saguinus imperator imperator and S. fuscicollis weddelli), and titi monkeys (Callicebus cupreus) at the Zoobotanical Park/UFAC, Rio Branco, Brazil. Our research design included the construction of feeding stations located in the home range of the study groups. Each feeding station consisted of eight visually identical feeding platforms located in a circular arrangement. In all test settings, two platforms at each feeding station contained a food reward (banana), and the remaining six platforms contained a sham. reward (yellow plastic or inaccessible banana). In the night-monkey experiments, each feeding platform was illuminated by a 40-W red bulb to aid the researcher in observing their behavior. When the location of reward sites was predictable over time, individuals in all four species successfully relocated food rewards based solely on spatial information. Each species was also successful in using visual information to distinguish real from sham food rewards. However, only night monkeys and one group of emperor tamarins used olfactory information alone to locate food rewards. Overall, the species' performances did not clearly differentiate Aotus from diurnal New World primates in these experiments. (C) 2004 Wiley-Liss, Inc.