农业景观的简化间接影响野生植物的繁殖,通过草食动物介导的花展示的变化
Hayley Schroeder1, Annika Salzberg2, Heather Grab3
1Department of Entomology, Cornell University, Ithaca, NY, USA. hayleyadair37@gmail.com.
Scientific reports
|June 21, 2024
概括
景观简化改变了昆虫的相互作用,影响了野生植物的繁殖. 虽然增加的草食减少了试验植物的花产量,但本地植物表现出弹性,表明它们适应了当地昆虫群落.
科学领域:
- 生态生态学 生态生态学
- 植物与昆虫的相互作用
- 景观生态学 景观生态学
背景情况:
- 农业强化简化了自然景观,改变了生物群落和相互作用.
- 大多数研究集中在作物影响上,忽视了对野生植物的影响.
- 了解野生植物对景观变化的反应对于生物多样性保护至关重要.
研究的目的:
- 为了研究如何授粉者和食草动物的相互作用影响野生植物繁殖成功沿着景观复杂度梯度.
- 测试景观构成对植物特征和昆虫相互作用中介的繁殖的直接和间接影响.
- 为了比较居民野生植物和引入植物表植物之间的反应.
主要方法:
- 从自然到简化农业景观的梯度上研究野生居民和植物仪植物.
- 评估草食动物的损害,花的生产,花的尺寸,以及授粉的成功.
- 通过昆虫相互作用分析景观构成对植物繁殖的直接和间接影响.
主要成果:
- 增加的景观复杂性与植物尺度植物的更高的草食动物损害相关.
- 草食减少了花的总产量,但增加了植物尺寸植物的单个花的尺寸.
- 尽管增加了花大小,提高了授粉率,但减少了花数量,降低了植物仪植物的整体繁殖成功.
- 居民植物在复杂的景观中体验到更高的草食性,但整体损害较低并不影响繁殖,这表明本地适应.
结论:
- 景观构成直接影响草食模式,对授粉和野生植物繁殖产生级联影响.
- 植物测量仪的植物显示,由于景观诱导的草食,其繁殖成功减少.
- 居民野生植物似乎适应了它们的本地昆虫群落,对景观变化表现出了弹性.
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