生物多样性对生态稳定的影响通过生态系统层面的反
Chun-Wei Chang1,2, Chih-Hao Hsieh1,2,3,4,5, Maiko Kagami6
1Institute of Fisheries Science, Department of Life Science, National Taiwan University, Taipei, Taiwan.
Ecology
|January 26, 2026
概括
生物多样性的动态,而不仅仅是它的存在,是生态系统稳定的关键. 我们的模型显示了植物浮游生物多样性和营养反循环如何增强稳定性并防止灭绝.
科学领域:
- 生态生态学 生态生态学
- 生态系统动力学 生态系统动力学
- 生物多样性研究 生物多样性研究
背景情况:
- 传统的生态理论通常将生物多样性视为静态,忽视其动态性和对生态系统稳定的影响.
- 现有的投资组合机制强调生物多样性在稳定中的作用,但忽视了塑造多样性动态的基础生态系统层次过程.
研究的目的:
- 根据岛屿生物地理学理论 (IBT) 开发一种新的模型框架,以研究将生物多样性动态与生态系统稳定性联系起来的生态系统级机制.
- 探索物种多样性,资源可用性和食用相互作用之间的反循环如何影响生态系统稳定.
主要方法:
- 开发了一个模型框架,将物种多样性视为浮游生物系统中的状态变量.
- 嵌入了植物浮游生物多样性,营养素可用性和多性相互作用之间的反机制.
- 分析了30年的植物浮游生物数据集,以经验验证物种丰富性和社区生物质稳定性的模型发现.
主要成果:
- 植物浮游生物的多样性被证明可以调节食用相互作用,影响浮游生物质和营养循环,创造反循环,重塑多样性.
- 反循环增强生态系统对灭绝的抵抗力;增加多样性提高了在灭绝风险期间资源利用效率,而减少多样性减轻了过度放牧.
- 经验数据证实了植物浮游生物物种丰富的时间变化与社区生物质的稳定性之间的因果关系.
结论:
- 生物多样性的动态,由生态系统层面的反驱动,在保持生态系统稳定方面发挥着至关重要的作用,独立于人口或社区层面的投资组合效应.
- 该研究揭示了一种新的机制,即动态生物多样性通过涉及资源可用性和食用相互作用的反循环影响生态系统稳定性.
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