地下储存器官的消费与草食灵长类灵长类动物的能量状况改善有关
Rachel F Perlman1, Jacinta C Beehner2, Andreas Koenig3
1Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, Stony Brook, NY 11794-4364, USA; Program for Research Initiatives in Science & Math, John Jay College of Criminal Justice, City University of New York, New York, NY 10019, USA.
Journal of human evolution
|June 6, 2024
概括
格拉达 (Theropithecus gelada) 季节性地消耗地下储存器官 (USO). 与预期相反,USOs似乎不是备用食品,因为格拉达在消费时显示出更好的能量状态.
科学领域:
- 灵长类生态学灵长类生态学
- 古人类学古人类学.
- 营养科学 营养科学
背景情况:
- 早期的原始人可能在开放息地使用了地下储存器官 (USO).
- 格拉达 (Theropithecus gelada),是唯一的食草灵长类动物,提供了关于USO消费的见解.
- 假设USOs在季节性稀缺期间是关键的备用食品.
研究的目的:
- 为了确定USO是否可以作为冰淋的备用食品.
- 调查季节性USO消费期间的食力度和能量状态.
- 通过现代灵长类模型了解早期人类的饮食策略.
主要方法:
- 行为数据:在野生格拉达中食和移动的时间.
- 生理学数据:尿液C度作为能量状态的指标.
- 在埃塞俄比亚对13只成年雄性格拉达进行了为期13个月的研究.
主要成果:
- 格拉达斯在干燥的月份增加了运动时间,这表明了更高的食力度.
- 在干旱季节,尿液中C水平显著上升,这表明能量状态有所改善.
- 与最初的假设相反,USOs似乎不是备用食品.
结论:
- USO可能是格拉达的能量丰富的食物来源,而不是不太喜欢的备用.
- 格拉达中USO的季节性消费模式需要进一步调查.
- 季节性USO利用可能是早期人类进化的关键饮食策略.
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