相关实验视频
Updated: Feb 6, 2026

07:26
Foraging Path-length Protocol for Drosophila melanogaster Larvae
Published on: April 23, 2016
9.9K
在的幼虫发育过程中,的食行为会因温度而发生变化
Jolan Hogreve1, Frank Johansson2, Frank Suhling3
1Landscape Ecology and Environmental Systems Analysis, Institute of Geoecology, Technische Universität Braunschweig, Braunschweig, Germany. j.hogreve@tu-braunschweig.de.
Scientific reports
|February 4, 2026
概括
龙幼虫 (Sympetrum striolatum) 在更高的温度和猎物密度下表现出增加的掠食行为. 然而,生命史的特征,如年龄和大小显著影响他们的食成功,而不是环境因素.
科学领域:
- 生态生态学 生态生态学
- 行为生态学 行为生态学
- 发展生物学 发展生物学
背景情况:
- 龙幼虫的掠夺性表现很复杂,受到环境因素和个体特征的影响.
- 了解这些影响对于预测食动态和生态相互作用至关重要.
研究的目的:
- 研究温度,猎物密度,竞争和生命历史特征对Sympetrum striolatum幼虫的捕食行为所产生的相对影响.
- 为了确定对食表现的本体遗传影响.
主要方法:
- 在不同的温度和猎物密度下,在五周内观察到幼虫,有/没有竞争对手.
- 幼虫从化后被养,在每个试验之前进行尺寸测量,以评估本体遗传效应.
主要成果:
- 较高的温度和猎物密度显著增加了猎物捕获行为,特别是在年轻,较小的幼虫中.
- 生命史特征 (年龄,大小) 对罢工,捕获和捕获成功的影响要大于外部因素,如猎物密度或竞争.
结论:
- 在龙幼虫的食表现方面,本体生理起着至关重要的作用.
- 预测食行为的未来模型应该将生命历史特征与环境变量相结合.
- 整合发育生物学对于理解对环境变化的行为反应至关重要.
相关概念视频
Optimal Foraging
13.9K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
13.9K
Le Chatelier's Principle: Changing Temperature
35.5K
Consistent with the law of mass action, an equilibrium stressed by a change in concentration will shift to re-establish equilibrium without any change in the value of the equilibrium constant, K. When an equilibrium shifts in response to a temperature change, however, it is re-established with a different relative composition that exhibits a different value for the equilibrium constant.
To understand this phenomenon, consider the elementary reaction:
To understand this phenomenon, consider the elementary reaction:
35.5K
ATP Driven Pumps I: An Overview
9.9K
ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
9.9K
Body Temperature
4.8K
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...
4.8K
Body Temperature
1.5K
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...
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
1.5K
Proton (¹H) NMR: Chemical Shift
3.5K
Organic molecules primarily contain carbon and hydrogen atoms. While all the hydrogen isotopes are NMR-active, protium or hydrogen-1 is the most abundant. It has a significant energy separation between its nuclear spin states due to its large gyromagnetic ratio. As per Boltzmann's distribution, an increase in the energy separation implies a greater excess population of nuclei available for excitation, resulting in a strong NMR absorption signal.
Absorption signals of all the protium nuclei...
Absorption signals of all the protium nuclei...
3.5K

