新奇性,可变性和弹性:探索海洋生态系统在压力下的适应性循环
Yosr Ammar1, Riikka Puntila-Dodd2,3, Maciej T Tomczak4
1Department of Environmental Research and Monitoring, Swedish Museum of Natural History, P.O. Box 50007, 104 05, Stockholm, Sweden. yosr.ammar@nrm.se.
Ambio
|April 22, 2025
概括
由气候变化和人类活动驱动的海洋生态系统新性影响了弹性. 温暖的气候和高的营养负载降低了生态系统的弹性,而低的营养负载提高了它.
科学领域:
- 海洋生态海洋生态学
- 生态系统的弹性 生态系统的弹性
- 气候变化影响气候变化的影响.
背景情况:
- 由于气候变化和人类活动,海洋生态系统面临前所未有的变化.
- 物种组合中的新奇性挑战了我们对生态系统弹性的理解.
- 适应性循环框架为研究生态系统阶段过渡和弹性提供了一个镜头.
研究的目的:
- 调查新鲜事物如何影响海洋生态系统的弹性.
- 检查适应周期框架在理解新驱动的弹性转变中的作用.
- 模拟气候,营养负载和渔业对生态系统新性和弹性的影响.
主要方法:
- 利用了芬兰群岛海 (波罗的海) 的生态系统模型.
- 模拟了对比的气候,营养负载和捕鱼场景.
- 在物种组成和生物量方面量化新奇.
- 应用生态网络分析指数以识别适应性循环阶段和弹性.
主要成果:
- 在温暖的气候场景下,生态系统的弹性随着新奇性的增加而下降.
- 与高营养负载相比,低营养负载场景促进了更快的适应周期和更大的弹性.
- 与适应性循环框架相关的生态网络指数揭示了新奇对抗性影响的洞察力.
结论:
- 新性显著影响海洋生态系统的弹性,特别是在不断变化的环境条件下.
- 了解适应性循环阶段对于管理面临新条件的生态系统至关重要.
- 该研究支持核心弹性理论,通过展示人类诱导的新奇性如何影响生态系统的稳定性.
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