夜间的人工光在半自然条件下扰乱野生动物的免疫节奏
Hagar Vardi-Naim1, Gul Janovsky2, Noga Kronfeld-Schor2
1School of ZoologyTel Aviv UniversityTel Aviv, Israel; The Shmunis School of Biomedicine and Cancer ResearchTel Aviv UniversityTel Aviv, Israel.
Environmental pollution (Barking, Essex : 1987)
|February 6, 2026
概括
夜间的人工光 (ALAN) 破坏野生动物的免疫节奏和抗体反应,增加死亡风险. 生态免疫学研究对于了解光污染至关重要.
科学领域:
- 生态免疫学 生态免疫学
- 环境毒理学环境毒理学
- 野生动物健康 野生动物健康
背景情况:
- 夜间的人工光 (ALAN) 是一个不断增长的环境污染物,破坏了自然的光暗循环.
- 免疫功能与环境线索密切相关,因此生态免疫学研究对于评估ALAN对野生动物的影响至关重要.
- 以前的研究往往缺乏生态背景,限制了对ALAN现实世界的影响的理解.
研究的目的:
- 研究低强度ALAN对两个野生动物物种免疫和内分泌节律,抗体反应和生存的影响.
- 为了在半自然的户外环境中比较夜间活动的 (Acomys dimidiatus) 和白天活动的 (Acomys russatus) 种类之间的这些效应.
- 在更广泛的生态框架内评估ALAN的影响,考虑到自然环境的变化.
主要方法:
- 野生动物 (Acomys dimidiatus和Acomys russatus) 在自然光暗条件下被安置在半自然的户外围中,然后暴露在ALAN.
- 监测了循环淋巴细胞频率和便皮质醇的每日节律.
- 免疫接种后,在不同时间评估了抗体反应,并记录了生存率.
主要成果:
- 这两种物种在自然光下表现出淋巴细胞频率的每日振荡,这些振荡被ALAN.打乱了.
- 暴露于ALAN抑制或消除了便皮质醇 (A. dimidiatus) 的每日节奏,以及抗体反应的每日时间变化.
- 在研究的动物种群中,ALAN显著增加了2.35倍的死亡风险.
结论:
- 阿兰破坏免疫和内分泌节律,并损害野生动物的适应性免疫反应.
- 野生动物的免疫功能是由复杂的环境相互作用塑造的,ALAN对野生动物的健康和弹性构成重大威胁.
- 生态免疫学方法对于了解光污染对野生动物的全部影响以及评估与动物传播疾病相关的风险至关重要.
相关概念视频
01:24Natural and Artificial Concepts
576
In psychology, concepts can be divided into two categories: natural and artificial. Natural concepts are formed through direct or indirect experiences. For example, consider the concept of snow. If you live in a place with regular snowfall, such as Essex Junction, Vermont, you know snow through direct experiences. You’ve seen it fall, touched it, shoveled it, and played in it. You recognize its texture, appearance, and even its smell. In contrast, if you live on an island like Saint...
576
02:12The Wave Nature of Light
61.5K
The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
61.5K
01:18Nightmares and Night Terrors
555
Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares...
Nightmares...
555
01:38What is the Immune System?
130.8K
Overview
130.8K
01:32What is Natural Selection?
129.6K
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.
129.6K
01:30Pulse rhythm
1.4K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.4K