子寄生和蛋识别在子的三个bunting宿主中的子寄生
Yuhan Zhang1, Guo Zhong1, Guixia Wan2
1Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences Hainan Normal University Haikou China.
Ecology and evolution
|October 23, 2023
概括
三种鸟种类显示高的卵识别和排斥率对鸟的繁殖寄生虫. 这表明了强烈的共同进化历史,即使寄生虫病率目前很低.
科学领域:
- 进化生物学 进化生物学
- 鸟类学 鸟类学是一门学科.
- 行为生态学 行为生态学
背景情况:
- 对宿主-寄生虫相互作用的比较研究揭示了共同进化的动态和对抗性.
- 被认为是的合适宿主,但对它们抗寄生虫行为的研究是有限的.
- 这项研究调查了三种交配的鸟物种的繁殖寄生和卵识别.
研究的目的:
- 报告关于黄喉 (Emberiza elegans),南方岩石 (E. yunnanensis) 和尖顶 (E. lathami) 的繁殖寄生症和卵子识别.
- 为了评估这些鸟种类的排卵能力,与非模仿性木瓜蛋相比.
主要方法:
- 在五个繁殖季节 (2018-2022/2023) 进行了现场观测,以记录寄生虫病率.
- 使用非模仿蓝色和红色蛋的实验表现来测量排斥率.
- 寄生虫和排斥率被量化为每一个三种bunting宿主物种.
主要成果:
- 常见的寄生率在黄喉的子中为0.87%,在南方岩的子中为0.45%.
- 顶尖的带经历了4%的寄生虫率,由一个未知的寄生虫.
- 在所有物种中,蓝色非模仿卵的排斥率高 (89.3%100%),而红色非模仿卵的排斥率略低 (76.9%82.4%).
结论:
- 这三种昆虫种都表现出高水平的卵子识别和排斥,这表明它们具有重要的寄生虫史.
- 即使在寄生虫的潜在下降后,识别卵的能力似乎仍然保留着.
- 需要进一步的实验来确认保留卵子识别能力的长期影响.
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