在城市化梯度下繁殖的两只流鸟中,额外的双胞胎亲子关系
Irene Di Lecce1, Joanna Sudyka2,3, Charles Perrier4
1Institute of Evolutionary Biology, Biological and Chemical Research Centre, Faculty of Biology, University of Warsaw, Warsaw, Poland.
Molecular ecology
|July 24, 2024
概括
城市化增加了蓝色乳房的额外对父权,但不是巨乳. 鸟类的这种交配策略变化与环境因素 (如光线和不透水的表面) 有关,但不是巢生存.
科学领域:
- 生态生态学 生态生态学
- 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:
- 城市化是一个日益增长的全球现象,改变环境和影响野生动物.
- 虽然已知城市野生动物的表型差异,但对交配策略的影响仍然不太了解.
- 额外对亲子关系 (EPP) 是一种影响生殖成功的关键交配策略.
研究的目的:
- 调查城市化如何影响大乳头 (Parus major) 和蓝乳头 (Cyanistes caeruleus) 的额外对父性 (EPP).
- 评估城市化代理 (光线,噪音,不透气的表面积,树木覆盖) 和EPP变化之间的关系.
- 为了确定EPP或城市化是否影响巢生存.
主要方法:
- 在波兰华沙的城市化梯度对面的巢穴里研究了巨乳和蓝色的乳房.
- 使用光污染,噪音污染,不透气表面积 (ISA) 和树木覆盖的量化城市化.
- 通过基因型测序 (GBS) 和通过全基因组相关性推断EPP,基因型定制了1213只巨乳和1299只蓝乳.
主要成果:
- 在城市化地区,蓝的EPP较高 (光污染较高,ISA;树木覆盖较低).
- 在整个城市化梯度中,没有观察到EPP的重大趋势.
- 在任何一种物种中,巢生存率与父权状况或城市化水平无关.
结论:
- 城市化影响交配策略,特别是EPP,以特定物种的方式 (例如,蓝 tits但不是大 tits).
- 与城市化相关的环境因素似乎推动了鸟类交配行为的变化.
- 需要进一步的研究,以了解EPP在城市环境中的适应性影响.
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