在城市热岛中扩大生态和进化研究的视野
Sarah E Diamond1, Ryan A Martin1
1Department of Biology, Case Western Reserve University, 2080 Adelbert Rd, Cleveland, OH 44106, USA.
Current opinion in insect science
|December 8, 2025
概括
城市热岛通过改变生物特征和社区结构来破坏生态系统. 城市为研究变暖如何影响遗传变异和生态进化动态提供了独特的机会.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 城市生态城市生态学
背景情况:
- 气候变化影响着生物的生物学,破坏了物种与环境的关联,增加了灭绝风险.
- 城市热岛 (UHIs) 是环境变暖的重要来源,影响城市景观中的人口.
- 现有的研究记录了特征和社区对UHI的反应,依赖于热生物学基础.
研究的目的:
- 总结当前关于UHI对生物特征和社区结构的影响的知识.
- 探索最近在理解温度对遗传/表观遗传变异和生态进化动态的影响方面的进展.
- 突出城市作为研究当代变暖在这些过程中的作用的实验系统.
主要方法:
- 文献综述和对城市热岛现有研究的综合.
- 检查温度对遗传和表观遗传变异的影响的研究.
- 对城市环境中的生态进化动态研究的分析.
主要成果:
- 城市热岛可以通过塑性和进化机制明显改变生物特征和社区结构.
- 关于城市变暖对 (epi) 基因变异和生态进化反的影响存在重大知识差距.
- 城市为研究当代变暖的生态和进化后果提供了宝贵的自然实验室.
结论:
- 城市热岛是生态和进化变化的关键驱动力,需要进一步研究.
- 了解城市变暖,遗传变异和生态进化动态之间的相互作用对于预测生物多样性反应至关重要.
- 城市是促进我们对全球变暖对生活多方面的影响的理解的重要平台.
相关概念视频
02:46Quantifying Heat
61.5K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the...
61.5K
02:45Responses to Heat and Cold Stress
14.6K
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.
14.6K
01:57Adaptations that Reduce Water Loss
27.8K
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.
27.8K
01:20Mechanisms of Heat Transfer II
4.1K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.1K
01:14Mechanisms of Heat Transfer
1.6K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.6K
01:14Mechanisms of Heat Transfer I
5.9K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
5.9K