气候变化引发的压力破坏了北极温度生态基层的生态菌相互作用网络
Christopher W Fernandez1,2, Louis Mielke2,3, Artur Stefanski4
1Department of Biology, Syracuse University, Syracuse, NY 13210.
概括
气候变化对森林中的生菌菌 (EMF) 网络产生影响. 气候变暖和降雨量减少改变了电磁场的组成和网络结构,可能会影响森林健康和碳循环.
科学领域:
- 生态生态学 生态生态学
- 森林科学 森林科学 森林科学
- 菌类学 菌类学是指菌类学.
背景情况:
- 脊髓菌 (EMF) 与树木形成关键的共生网络,影响森林生态系统.
- 这些EMF网络对于森林再生,碳和营养循环至关重要.
- 北温带森林生态特别容易受到快速气候变化的影响.
研究的目的:
- 调查温度升高和降雨减少对EMF社区及其互动网络的影响.
- 评估EMF社区与宿主树有关的功能性质反应.
- 了解气候变化如何通过EMF相互作用影响森林生态系统完整性.
主要方法:
- 一个长期的露天实验 (B4WarmED) 操纵了温度 (+3.1°C) 和降水 (~30%的降低).
- 研究了与两个北极和两个温带树种相关的EMF社区.
- 通过使用根端元编码来描述EMF社区和推断的交互网络.
主要成果:
- 变暖和降雨量减少显著改变了EMF社区的组成,有利于EMF的短距离勘探类型.
- 在气候变化条件下,EMF网络结构从高度冗余转变为较少冗余 (更专业).
- 电磁场社区和网络的变化与土壤水分和宿主树光合作用变化相关.
结论:
- 预计的气候变化对北极温带生态森林的EMF社区特征,结构和网络完整性产生重大影响.
- 这些变化可能会危及生态系统的基本功能,如营养循环和碳保留.
- 了解EMF的反应对于预测气候变化下的森林生态系统弹性至关重要.
相关概念视频
Ecological Disturbance
17.1K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
17.1K
Responses to Heat and Cold Stress
13.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.6K
Global Climate Change
24.5K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.5K
Adaptations that Reduce Water Loss
25.7K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.7K
Threats to Biodiversity
22.4K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.4K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K


