合作繁殖哺乳动物和鸟类的繁殖共享连续性的证据:对比性研究的影响
Yitzchak Ben Mocha1,2,3,4, Tal Dahan2, Yuqi Zou3
1Department of Evolutionary and Environmental Biology, University of Haifa, 3498838 Haifa, Israel.
Proceedings. Biological sciences
|September 13, 2023
概括
极端的繁殖倾斜不是合作繁殖的可靠指标. 许多以前被归类为这样的物种在仅考虑多个成年组时不会表现出这种偏差,因此需要对数据集进行修订.
科学领域:
- 行为生态学 行为生态学
- 进化生物学 进化生物学
- 动物社会系统动物社会系统
背景情况:
- 极端的繁殖倾斜,其中一个主导的个体断繁殖,经常被用作合作繁殖的标准.
- 现有的数据集可能会高估繁殖偏差,包括那些按定义无法共享繁殖的群体.
研究的目的:
- 重新评估以前分类的合作繁殖物种中极端繁殖倾斜的流行情况.
- 评估生殖倾斜作为合作繁殖的定义特征的有效性.
- 提供有关合作繁殖物种生殖共享的最新数据集.
主要方法:
- 审查了41种哺乳动物和37种鸟类的繁殖共享,这些鸟类以前被确定具有极端的繁殖倾斜.
- 对多女性或多男性群体进行专注分析,以评估真正的生殖共享.
- 编制了63种合作繁殖物种的最新数据集.
主要成果:
- 在可以共享的群体中,极端的繁殖倾斜是罕见的 (11/41种哺乳动物,12/37种鸟类).
- 以前基于繁殖倾斜的合作繁殖的分类可能被高估了.
- 对分类物种的照顾和交配系统的数据集需要进行重大修订.
结论:
- 生殖倾斜不应该成为合作繁殖的决定性标准.
- 合作繁殖最好被定义为一个关怀系统,包括系统的全亲子关怀.
- 这些发现支持对合作繁殖物种的社会行为和生殖策略的修订理解.
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