関連する実験動画
Updated: Jul 12, 2026

10:35
Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees
Published on: November 15, 2017
まとめ
ミツバチは,高温で再発した蜂蜜を蒸発冷却することで頭部を冷やす. 低温では,胸の温度を調節し,被動的に頭部を熱します.
科学分野:
- エントモロジー エントモロジー学
- 動物生理学 動物生理学
- 温度調節 温度調節 温度調節 温度調節
背景:
- ミツバチ (アピス・メリフェラ) は,さまざまな環境条件下で安定した体温を維持する課題に直面しています.
- 飛行中の代謝は相当な熱を発生させ,特に高温で過熱のリスクが生じます.
研究 の 目的:
- ミツバチが環境の高温と低温で利用する温度調節メカニズムを調査する.
- ミツバチが飛行および静止期間の頭部および胸部温度を管理する方法を理解するために.
主な方法:
- ミツバチの熱調節を分析した観察研究.
- 蒸発による冷却,熱伝導,血流に注目してください.
- 高い (46°C) と低い環境温度でのメカニズムの比較.
主要な成果:
- 高温下では,蜂蜜は蒸発式冷却によって吐した蜂蜜を冷却して頭部温度を調節します.
- 胸の温度は,胸から頭への熱の流れによって,伝導と血流の促進を介して二次的に安定させられます.
- 低温では,蜂蜜は胸部温度調節を優先し,導電による被動的な頭部加熱を行う.
結論:
- ミツバチは,高い環境温度と低い環境温度の両方に洗練された温度調節戦略を持っています.
- 蒸発による冷却は,暑い条件下での頭部温度制御に不可欠であり,飛行を可能にします.
- パッシブ伝導と胸部調節は,低温で重要な役割を果たします.
さらに関連する動画
関連する概念動画
Thermoregulation
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,...
Body Temperature
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
Body Temperature
Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
What is Homeostasis?
Maintaining homeostasis requires that the body continuously maintain its internal conditions. Each physiological condition has a particular set point, from body temperature to blood pressure to levels of certain nutrients. A set point is the physiological value around which the normal range fluctuates. A normal range is a restricted set of values that is optimally healthful and stable. For example, the set point for normal human body temperature is approximately 37°C (98.6°F). Physiological...
Requirements for Human Life
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...
Homeostatic Imbalances in Body Temperature
Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...

