与食肉动物尸体相关的感染风险可能会影响虫和食昆虫的鸟之间的食用相互作用
Akane Hashizume1, Ryosuke Koda2, Yoshihiro Nakashima1
1College of Bioresource Science, Nihon University , Fujisawa, Kanagawa, Japan.
Biology letters
|June 18, 2024
概括
许多脊椎动物避免食肉动物的尸体,由于感染而具有风险. 这使得能够壮成长,而食昆虫的鸟类只能吃很少,这很可能是为了避免感染风险.
科学领域:
- 生态生态学 生态生态学
- 动物学 动物学
- 行为生态学 行为生态学
背景情况:
- 避免病原体会影响资源使用,有利于耐受感染的物种.
- 肉食动物的尸体往往被同类避免,导致虫的统治和新物种的相互作用.
研究的目的:
- 为了调查非鸟鸟从食肉动物尸体中消费虫的消费情况.
- 了解虫在尸体分解和鸟类食行为中的生态作用.
主要方法:
- 在日本北海道监测66只子尸体 (2016-2019).
- 在虫散布之前记录脊椎动物的清理.
- 观察非鸟鸟与尸体和虫的相互作用.
主要成果:
- 在66个尸体中,只有14个被脊椎动物在虫分散之前清理.
- 52个尸体产生了丰富的虫,至少有12种非鸟鸟使用.
- 鸟类的虫消费发生在尸体之外,主要是分散后,只有1%的虫被消耗.
结论:
- 鸟类可能会避免从尸体和虫中感染的风险,影响食策略.
- 食可能受益于与尸体相关的感染风险,减少食肉动物的食和食虫鸟类对虫的掠食.
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