生物多样性丧失影响了跨越生态系统边界的昆虫食草动物的自上而下的监管
Kris A G Wyckhuys1, Gabor Pozsgai2, Ibtissem Ben Fekih3
1Chrysalis Consulting, Danang, Viet Nam; Institute for Plant Protection, China Academy of Agricultural Sciences (CAAS), Beijing, China; School of Biological Sciences, University of Queensland, Saint Lucia, Australia; Food and Agriculture Organization (FAO), Rome, Italy.
The Science of the total environment
|April 28, 2024
概括
生物多样性丧失威胁着生态系统服务,如生物控制 (BC). 通过分析食物网,这项研究揭示了失去食草动物或BC生物如何影响生态调节和保护工作.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 人类造成的全球变化导致生物多样性丧失,威胁到生态系统服务.
- 上下调节或生物控制 (BC) 容易受到上层食物层和支持物种的物种灭绝的影响.
- 秋季军 (Spodoptera frugiperda) 作为分析食物源网络稳定的焦点.
研究的目的:
- 为了结构性地分析以秋季军虫为中心的新热带热带网络.
- 评估这些网络对物种丧失的强度,特别关注生物控制生物和食草动物.
- 了解生物多样性丧失对生态系统服务和保护的影响.
主要方法:
- 利用精心策划的开放访问交互数据来构建三方食物网.
- 模拟的网络连接生物控制生物体,类鸟宿主和新热带地区的植物.
- 评估了随机物种丧失对网络结构和自上而下的监管的影响.
主要成果:
- 随机的草食动物损失对作物 (26%) 和非作物 (108%) 环境的自上向下调节的影响明显高于生物控制生物的损失 (50%的损失).
- 生物控制生物的丧失影响了草食动物的调节 (13.8%),而不是草食动物的丧失影响了它们的保存 (11.4%).
- 非害虫的食草动物在适度生物多样性丧失场景下对生物控制生物体的损失高度敏感.
结论:
- 拓分析突出了农业支持的生物控制剂如何帮助植被恢复.
- 非害虫的食草动物对于在农业和自然环境中保持生物控制至关重要.
- 在农场内使用特有生物控制生物体可以同时促进保护,恢复和农业可持续性.
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