什么时候开始暴徒? 在普通乌 (Corvus corax) 家庭的反捕食者行为的可塑性,跨越后代的发育
Silvia Damini1,2, Christian R Blum3,4, Petra Sumasgutner3,5
1Department of Behavioral & Cognitive Biology, Faculty of Life Sciences, University of Vienna, Vienna, Austria. silvia.damini@univie.ac.at.
Animal cognition
|July 3, 2025
概括
父母的骚动影响乌的反掠食者行为. 当年轻的乌易受伤害时,父母的暴徒更多,而年长的后代则独立地增加了与威胁的接触.
科学领域:
- 行为生态学 行为生态学
- 动物认知 动物认知
- 鸟类行为 鸟类行为
背景情况:
- 抗捕食者行为对于生存至关重要,并且经常被学习.
- 乌类动物和乌一样,对捕食者表现出灵活的群众反应.
- 欺凌行为受到社会地位,年龄和抚养的影响.
研究的目的:
- 为了研究乌中反捕食者行为的发展.
- 为了确定年轻乌的暴行行为的开始.
- 评估父母激动对后代反掠食者反应的影响.
主要方法:
- 12个被囚禁的乌家庭在两个发展阶段受到人类威胁.
- 试验是在鸟后不久进行的,并且接近独立.
- 记录了父母的欺凌行为和后代对威胁的参与.
主要成果:
- 成年乌在早期测试期间 (年轻后代) 显示出明显更多的欺凌行为.
- 后代在测试期晚期 (接近独立) 显示出较少的无视行为,并增加了对威胁的参与.
- 年幼的后代在与父母在一起时较少暴徒,这表明独立威胁评估减少了.
结论:
- 随着后代的成熟,父母对抗捕食者的投资减少,促进了独立的威胁评估.
- 乌的后代逐渐发展自己的能力来评估和应对危险.
- 需要进一步的研究来探索暴徒行为的个人差异的出现.
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