多种行为机制塑造了高度社交的鱼的发展
Isabela P Harmon1, Emily A McCabe1, Madeleine R Vergun1
1Scripps College, Claremont, CA, USA.
Physiology & behavior
|March 16, 2024
概括
早期的社会环境对鱼类的行为和应激反应产生重大影响. 更多的社会伙伴和多样化的社会经验导致不同的行为模式,影响成人现象型.
科学领域:
- 行为生态学 行为生态学
- 神经内分泌学神经内分泌学
- 动物行为 动物行为
背景情况:
- 早期的社会经验对于塑造成人现象型至关重要.
- 将早期社会生活与成年人的结果联系在一起的特定行为机制尚未得到充分理解.
- 社会行为和压力轴功能是受早期经验影响的关键领域.
研究的目的:
- 调查早期社会经验如何影响青少年行为和压力轴在鱼中的功能.
- 确定社会伙伴数量和社会稳定对行为发展的影响.
主要方法:
- 非洲鱼 (Astatotilapia burtoni) 的幼暴露在不同的社会条件下:稳定的伴侣,稳定的群体,以及与轮换伴侣的社会化伴侣.
- 行为分析包括开放场地探索,社会暗示调查以及对主导和附属行为的评估.
- 测量了水中皮质醇水平,以评估应力轴的功能.
主要成果:
- 在所有行为分析中观察到显著的治疗差异,但在皮质醇水平中没有.
- 主要组件分析揭示了对早期社会经验敏感的行为综合征.
- 增加的社交伙伴数量与更高的探索性行为和社会互动相关.
- 社会不稳定 (社会化的对) 与主导地位的增加和领土性的减少有关.
结论:
- 早期的社会经验,特别是伴侣数量和社会稳定性,深深地影响了类动物的行为发展.
- 出现的行为综合征是由早期社会互动的数量和性质所塑造的.
- 这些发现强调了早期社会环境对表型的持久影响,即使在压力激素水平没有显著变化.
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