在夜间人工照明下的生态进化反
Nedim Tüzün1, Luc De Meester1,2,3, Franz Hölker1,2
1Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany.
iScience
|June 12, 2025
概括
夜间的人工光 (ALAN) 推动了快速的进化,但生态反应往往掩盖了遗传适应. 生态进化反复杂化了对光污染的理解.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 环境科学 环境科学
背景情况:
- 夜间的人工光 (ALAN) 是一种普遍存在的人为压力因素,影响全球生态系统.
- 虽然ALAN可以推动进化变化,但对遗传适应的直接证据有限,生态可塑性往往主导观察到的效应.
- 生态进化反,即生态和进化过程相互作用的地方,可能会掩盖适应ALAN的信号.
研究的目的:
- 批判性地审查现有的证据,以证明进化适应在夜间的人工光线.
- 建议生态进化反使得检测ALAN的遗传适应变得更加复杂.
- 倡导公共花园实验,以区分基因适应与表型可塑性,以应对ALAN.
主要方法:
- 对研究ALAN对生物体的影响的文献综述.
- 概念建模使用城市淡水池生态系统和关键物种*Daphnia* (水).
- 对ALAN如何影响生态过程的分析,如 diel 垂直迁移,寄生虫动态和食用控制.
主要成果:
- 艾伦可以对水生生物施加复杂和级联的选择压力.
- 对ALAN观察到的生态反应可能不仅仅反映了遗传适应.
- 生态进化反可以掩盖直接的进化信号,需要仔细的实验设计.
结论:
- 了解生态和进化过程之间的相互作用对于评估光污染的影响至关重要.
- 公共花园实验对于解脱ALAN. 响应的基因适应与可塑性至关重要.
- 在ALAN下对生态进化动态的洞察力可以为日益明亮的环境中的生态系统的保护策略提供信息.
更多相关视频
06:19Low-Cost Automated Flight Intercept Trap for the Temporal Sub-Sampling of Flying Insects Attracted to Artificial Light at Night
Published on: December 29, 2021
2.5K
07:14Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae
Published on: April 20, 2013
12.9K
相关概念视频
02:45Biological Clocks and Seasonal Responses
34.6K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
34.6K
02:00Photoreceptors and Plant Responses to Light
20.2K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.2K
01:32What is Natural Selection?
114.9K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
114.9K
02:19Circadian Rhythms and Gene Regulation
4.0K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
4.0K
01:22Photoreceptors and Visual Pathways
5.9K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
5.9K