Food Sharing in Pied Bare-Faced Tamarins (Saguinus bicolor bicolor): Development and Individual Differences
Food Sharing in Pied Bare-Faced Tamarins (Saguinus bicolor bicolor): Development and Individual Differences
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斑狨猴（Saguinus bicolor bicolor）的食物共享：发育和个体差异
DOI：
10.1023/a:1005671514814
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发表时间：
2001
影响因子：
2.5
通讯作者：
A. Feistner
中科院分区：
文献类型：
--
作者：
E. Price;A. Feistner
我们调查了来自 3 个家庭的 5 窝斑面狨猴 (Saguinus bicolor bicolor) 的食物共享行为，其中包括来自 3 个家庭的 8 只婴儿，年龄为 5 至 26 周。父母回应婴儿乞求的分享频率从 5 周到 16 周稳步增加，然后下降。在整个观察过程中，成人在没有事先向婴儿乞讨的情况下提供食物的频率非常低（占转移物品总数的 1.5%）。平均而言，婴儿在大约 20 周之前，通过他人转移和自我喂养获得的食物量大致相等，此后，自我喂养开始占主导地位。随着时间的推移，乞讨成功率（婴儿乞讨导致分享食物的比例）保持相对稳定，为 60-70%。因此，总的来说，食物分享的频率似乎是由婴儿而不是成人行为的变化决定的。成年人对婴儿乞讨的反应存在个体差异，但三分之二的父亲向婴儿转移的食物明显多于母亲。这项研究的结果强调了食物共享行为存在特定的个体差异，在解释其在 Callitrichidae 繁殖策略中的重要性时必须考虑到这一点。
We investigated food sharing behavior in 5 litters of pied bare-faced tamarins (Saguinus bicolor bicolor)—8 infants, from 3 families—from 5 to 26 weeks of age. The frequency of sharing by parents in response to infant begging increased steadily from the age of 5 weeks to 16 weeks, and then declined. Offering of food by adults without prior infant begging occurred at very low frequencies throughout observations (1.5% of total items transferred). On average, infants received approximately equal amounts of food from transfers from others and by self feeding until about 20 weeks, after which self feeding began to predominate. Begging success—the proportion of infant begs which resulted in food sharing—remained relatively constant over time, at 60–70%. Overall, therefore, the frequency of food sharing seemed to be governed by changes in infant rather than adult behavior. There were individual differences between adults in their response to infant begging, but two of three fathers transferred significantly more food to infants than mothers did. The results of this study emphasize the existence of specific and individual differences in food-sharing behavior, which must be taken into account in explaining its importance in the reproductive strategies of the Callitrichidae.