野生雄性阿萨姆斯的社交和葡萄糖皮质激素的动态
James Stranks1, Michael Heistermann2, Somboon Sangmaneedet3
1Behavioral Ecology Department, University of Goettingen, Goettingen, Germany; Primate Social Evolution Group, German Primate Center, Leibniz Institute for Primate Research, Goettingen, Germany; Leibniz ScienceCampus Primate Cognition, German Primate Center, Leibniz Institute for Primate Research, Goettingen, Germany.
Hormones and behavior
|July 16, 2024
概括
对于阿萨姆山来说,在雄性中较高的社会优势与增加的压力激素 (fGC) 相对应. 然而,强大的社会纽带可以减轻这些生理成本,突显了灵长类动物中社会动态和健康的复杂相互作用.
科学领域:
- 灵长类动物学 灵长类动物学
- 行为生态学 行为生态学
- 内分泌学 在内分泌学.
背景情况:
- 社会地位和人际关系对群众物种的身体健康和生理压力产生重大影响.
- 葡萄糖皮质体 (GCs) 是平衡和对挑战的生理反应的关键媒介,包括社会竞争.
- 之前对阿萨姆的研究表明,主导地位和便葡萄糖皮质代谢物 (fGC) 水平之间存在反向关系.
研究的目的:
- 用扩展的数据集重新检查男性阿萨姆斯的统治地位,社会纽带和生理压力 (fGC) 之间的关系.
- 调查季节性挑战,特别是交配季节对fGC水平的影响.
- 测试社会支持可以减轻男性fGC水平的假设.
主要方法:
- 长度研究结合了15年的行为观察和62只成年雄性阿萨姆的4129个便样本.
- 分析便葡萄糖皮质醇代谢物 (fGC) 水平作为生理压力的衡量标准.
- 统计建模以评估主导地位等级,社会归属动态,季节变化和fGC水平之间的关系.
主要成果:
- 统治地位与fGC水平呈正相关性,而较高的地位与高水平的葡萄糖皮质激素相关,这与之前的研究结果相反.
- 在交配季节开始时,fGC水平显著增加.
- 支持性的社会关系在男性中显示出减少fGC的效果,这表明归属动态与生理反应相关.
结论:
- 在具有中等竞争潜力的系统中,男性阿萨姆斯的高主导地位可能会产生生理成本.
- 社会支持在缓解与高社会地位相关的这些生理成本方面发挥着至关重要的作用.
- 了解社交和竞争的动态对于理解荷尔蒙过程及其对社会动物健康的影响至关重要.
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