温度上升会影响北极大黄蜂的胸部肌肉性能.
Charlie Woodrow1, Guadalupe Sepúlveda-Rodríguez2, Samyuktha Rajan2
1Department of Ecology and Genetics, Uppsala University, Evolutionary Biology Centre, Uppsala, Sweden. charlie.woodrow@ebc.uu.se.
Nature communications
|November 3, 2025
概括
北极大黄蜂面临着气温上升影响其重要声的威胁. 这项研究揭示了热量如何影响非飞行肌肉振动,这对于防御和授粉至关重要,对植物与授粉者相互作用有影响.
科学领域:
- 生态生态学 生态生态学
- 动物学 动物学
- 生理学 生理学 生理学
背景情况:
- 气温上升对北极昆虫的生物多样性构成重大威胁.
- 高温会破坏像熊蜂这样适应寒冷的授粉者的生理.
- 温度对大黄蜂非飞行肌肉功能的影响,例如防御性声,在很大程度上是未被探索的.
研究的目的:
- 为了研究15种北极大黄蜂物种的非飞行肌肉功能的热性能.
- 测量胸部振动在防御性声行为期间在一系列温度范围内.
- 了解温度如何影响黄蜂在飞行之外的关键行为.
主要方法:
- 在15种北极大黄蜂物种中评估非飞行肌肉功能的热性能.
- 在防御性声行为期间测量胸部振动.
- 分析了空气/胸部温度和振动特征 (加速,频率) 之间的关系.
主要成果:
- 胸部加速达到25°C的峰值,随后下降,这表明了防止过热的策略.
- 振动频率随着温度的增加而增加,与胸部的相关性比空气温度更好.
- 在物种,种姓或热息地专业化之间没有观察到热反应的显著差异.
结论:
- 北极大黄蜂的非飞行振动同样容易受到不同物种不利的温度的影响.
- 由于热量导致的声行为受到干扰,可能会对重要的植物-传粉者相互作用产生负面影响,包括声传粉.
- 这些发现凸显了大熊蜂在北极变暖中提供的关键生态系统服务的脆弱性.
相关概念视频
Requirements for Human Life
12.5K
The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
12.5K
Factors Affecting Body Temperature
8.6K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
8.6K
Increased Body Temperature
6.4K
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
6.4K
Factors Influencing Microbial Growth: Temperature
1.1K
Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...
1.1K
Background and Environment Affect Phenotype
7.4K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.4K
Thermoregulation
2.2K
The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
2.2K


