相关实验视频

Updated: Jun 2, 2025

High-Throughput Assays of Critical Thermal Limits in Insects

High-Throughput Assays of Critical Thermal Limits in Insects

Published on: June 15, 2020

在熊蜂气候脆弱性的多个指数中缺乏热适应

C L Poore¹, E J Ibarra-Garibay¹, A L Toth¹

¹Department of Ecology, Evolution, and Organismal Biology, Iowa State University, 2200 Osborn Drive, Ames, IA 50010, USA.

Proceedings. Biological sciences

|January 14, 2025

概括

熊蜂的气候脆弱性指数显示在物种内部和物种之间存在不一致的模式. 生理特征没有适应变暖,高热耐受性与较低的生存率相关.

科学领域:

生态生态学生态生态学
气候变化生物学气候变化生物学
生理学生理学生理学

背景情况:

气候脆弱性指数使用生理特征预测物种对气候变化的反应.
这些指数的一致性很少同时评估.

研究的目的:

为了比较热生理学和气候脆弱性指数之间的两个大黄蜂物种与不同的种群趋势.
评估物种是否适应模拟气候变暖,以及指数是否一致.

主要方法:

在女王大蜂 (Bombus auricomus和B. impatiens) 中测量了临界热最大值 (CTmax) 和最小值 (CTmin),代谢率,水损失和存活率.
在模拟气候变暖下进行了为期数周的适应实验.
评估的生理特征适应和一致性跨脆弱性指数.

主要成果:

两种熊蜂都没有表现出对模拟变暖的生理适应.
在物种内部和物种之间,在多个气候脆弱性指数中观察到相互冲突的模式.
具有较高临界热最大值 (CTmax) 的个体在热耐受性试验后的生存率较低.

结论:

多个气候脆弱性指数可能会产生不一致的结果,用于预测物种对气候变化的反应.
依靠单一的生理指数可能会限制对物种对环境变化脆弱性的理解.
需要进一步的研究来开发可靠的方法来评估昆虫的气候脆弱性.

关键词:

这就是Bombus Bombus.气候的脆弱性气候的脆弱性代谢速度代谢速度幸存率幸存率生存率热承受能力热承受能力水的流失率是什么水的流失率是什么

更多相关视频

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

Published on: November 15, 2017

相关概念视频

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

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.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

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.

Decreased Body Temperature

Decreased Body Temperature

A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...

Inclusive Fitness

Inclusive Fitness

Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.

What is Climate?

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

Osmoregulation in Insects

Osmoregulation in Insects

Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.