相关实验视频
Updated: Jul 23, 2025
10:07
Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
Published on: November 6, 2015
13.5K
一个生物物理模型的评估,用于预测鸟类在热量中的温度调节
Shannon R Conradie1,2,3, Michael R Kearney4, Blair O Wolf5
1South African Research Chair in Conservation Physiology, South African National Biodiversity Institute, PO Box 754, Pretoria 0001, South Africa.
The Journal of experimental biology
|July 20, 2023
概括
精确的生物物理模型准确地预测了干旱地区鸟类的蒸发性水损失,新陈代谢率和体温,有助于评估气候变化对鸟类的影响.
科学领域:
- 生理生态生态学 生理生态学
- 气候变化生物学 气候变化生物学
- 鸟类生物学 鸟类生物学
背景情况:
- 内热体的生存依赖于平衡与环境的能量和水交换.
- 高温对日间内热体构成风险,需要生理和行为适应.
- 预测气候变化对鸟类的影响需要准确的温度调节模型.
研究的目的:
- 评估NicheMapR生物物理模型在预测三种干旱地区鸟类热调节反应方面的表现.
- 评估与气候变化相关的高环境温度下的模型准确性.
- 确定模拟白天鸟类热反应的基本数据.
主要方法:
- 使用NicheMapR.R.模拟的代谢室条件.
- 将蒸发性水损失 (EWL),休息代谢率 (RMR) 和体温 (Tb) 的模型预测与实证数据进行比较.
- 进行敏感性分析以确定准确建模的关键参数.
主要成果:
- 对于EWL,RMR和Tb的模型预测与广泛的温度范围 (10-50°C) 的观察数据密切匹配.
- 该模型准确地捕获了关键的30-40°C范围内的温度调节反应.
- 在35°C左右的两种物种中,在EWL中发现了微小的差异.
结论:
- 生物物理模型,包括物种特异性参数和形态数据,可以准确预测鸟类对热的温度调节反应.
- 这些模型提供了一个非侵入性的工具,通过整合生物和环境因素来评估物种的气候敏感性.
- 经过验证的模型对于预测鸟类对全球气温上升和干旱的反应至关重要.
相关概念视频
01:26Thermoregulation
1.0K
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,...
1.0K
01:14Assessing Body Temperature - Axilla
619
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
619
01:19Assessing Body Temperature - Temporal Artery
589
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
589
01:25Body Temperature
1.1K
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...
1.1K
01:15Model Approaches for Pharmacokinetic Data: Physiological Models
78
Physiological models in pharmacokinetics are instrumental in understanding the distribution and elimination of drugs within the body. These models describe the drug concentration within target organs, influenced by factors such as drug uptake, tissue volume, and blood flow. Drug uptake is governed by the partition coefficient, which signifies the drug concentration ratio in tissue to that in the blood. The blood flow rate to a specific tissue is expressed as Qt, and the rate of change in tissue...
78
01:14Assessing Body Temperature - Tympanic membrane
619
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
619