生态系统在人类世 (Anthropocene) 的整个地球周期中运行.
Daniel T C Cox1, Kevin J Gaston1
1Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, UK.
Trends in ecology & evolution
|September 18, 2023
概括
生态系统的功能在白天和夜晚之间有所不同,但研究挑战限制了我们的理解. 人类造成的压力,比如夜间的人工照明,破坏了这些日光周期,影响了生态系统的过程.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 生态系统动力学 生态系统动力学
背景情况:
- 由于环境和生物变异,生态系统的功能在白天和夜晚之间存在显著差异.
- 关于夜间生态系统过程的研究受到夜间实地工作固有的挑战的限制.
- 人类产生的压力往往表现出极度不对称,在特定的白天或夜间时期发挥更大的影响.
研究的目的:
- 探索当前对关键生态系统功能的diel (日常) 变化的理解.
- 确定特定生态系统功能 (如食草,授粉和碳同化) 的首要时间段.
- 调查人类造成的压力对生态系统功能的物质不对称的影响.
主要方法:
- 对生态系统功能中物质变化的现有文献的综述.
- 对关键生态过程 (掠食,食草,授粉,种子分散,碳同化) 的时间发生情况的分析.
- 评估人为压力如何影响这些功能,这些压力在迪尔循环中变化,影响这些功能.
主要成果:
- 草食和碳同化主要发生在夜间和白天.
- 授粉主要是白天的活动.
- 捕食和种子分散表现出不清楚的生物模式,需要进一步调查.
- 在人为压力下,如人工照明和差异变暖,Diel不对称性会影响生态系统功能.
结论:
- 迪尔的变化对于了解生态系统的运作至关重要,不同的过程在白天和晚上占主导地位.
- 人类造成的压力,特别是具有二元对称性的压力,通过破坏自然循环,对生态系统健康构成重大威胁.
- 需要进一步的研究,以充分阐明某些功能的代谢模式和与人类影响的复杂相互作用.
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