照顾的协调减少冲突和掠夺的风险在合作繁殖鸟的合作繁殖鸟
Chay Halliwell1, Andrew P Beckerman1, Samantha C Patrick2
1School of Biosciences, University of Sheffield, Sheffield, United Kingdom.
Evolution letters
|December 16, 2024
概括
在长尾中,协调的家长照顾表明轮番减少了冲突,增加了后代的招募,而同步访问降低了掠夺风险,提高了生存率.
科学领域:
- 行为生态学 行为生态学
- 进化生物学 进化生物学
- 鸟类学 鸟类学是一门学科.
背景情况:
- 合作繁殖涉及多个人照顾年轻人.
- 建议对父母的照顾进行时间协调,包括交替和同步,以减轻冲突和掠夺风险.
- 对护理协调的健康后果的实证测试是有限的.
研究的目的:
- 调查时间协调在提供护理人员访问时的健康后果.
- 测试这样的假设:交替减轻冲突,同步降低掠夺风险.
- 评估协调在自愿合作繁殖中的作用.
主要方法:
- 对长尾巨乳 (Aegithalos caudatus) 的长期研究.
- 对准备率,交替水平和准备率平价的分析.
- 评估与协调策略相关的后代招募和生存情况.
主要成果:
- 轮流 (交替) 增加了配备率和合作社集团的后代招聘,与配备平价相关.
- 双亲中的后代招募并没有随着交替增加,而是与供应平价相关.
- 同步访问巢穴减少了巢穴掠食的可能性,增加了幼的存活率,特别是在高供应率的情况下.
结论:
- 提供访问的时间协调,通过交替和同步,提供了明显的健康益处.
- 交替似乎减轻了护理人员之间的冲突,提高了后代的招募.
- 同步降低了掠食者的风险,最大限度地减少了巢附近的护理者活动,从而增加了繁殖的生存率.
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