Shaking a leg and hot to trot: the effects of body size and temperature on running speed in ants
Shaking a leg and hot to trot: the effects of body size and temperature on running speed in ants
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DOI：
10.1111/j.1365-2311.2007.00962.x
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发表时间：
2008-02-01
影响因子：
2.2
通讯作者：
Powell, Scott
中科院分区：
文献类型：
--
作者：
Hurlbert, Allen H.;Ballantyne, Ford;Powell, Scott
1.本研究以24种蚂蚁为研究对象，通过文献资料和实验数据，探讨了蚂蚁体型和温度对觅食蚂蚁奔跑速度的影响.跑步速度随着温度的升高而增加，这与温度对代谢率和肌肉动力学特性的影响是一致的.体质量-跑速异速生长指数的变化范围为0.14 ~ 0.34，集中趋势约为0.25。这种体重缩放与弹性相似性模型和动态相似性与可用代谢功率相结合的模型都是一致的。即使在控制了体型或体温之后，跑速的种间差异仍然很大。具有特定生活方式的物种[例如游牧群体捕食者，在极端温度（> 60摄氏度）下觅食的物种]可能被选择为更快的跑步速度。虽然蚂蚁有一个类似的比例指数，哺乳动物的运行速度异速生长，他们跑得比预测相比，一个假设的哺乳动物类似的大小。这可能部分反映了无脊椎动物和脊椎动物之间的生理差异。
1. Data were compiled from the literature and our own studies on 24 ant species to characterise the effects of body size and temperature on forager running speed.2. Running speed increases with temperature in a manner consistent with the effects of temperature on metabolic rate and the kinetic properties of muscles.3. The exponent of the body mass-running speed allometry ranged from 0.14 to 0.34 with a central tendency of approximately 0.25. This body mass scaling is consistent with both the model of elastic similarity, and a model combining dynamic similarity with available metabolic power.4. Even after controlling for body size or temperature, a substantial amount of inter-specific variation in running speed remains. Species with certain lifestyles [e.g. nomadic group predators, species which forage at extreme (> 60 degrees C) temperatures] may have been selected for faster running speeds.5. Although ants have a similar scaling exponent to mammals for the running speed allometry, they run slower than predicted compared with a hypothetical mammal of similar size. This may in part reflect physiological differences between invertebrates and vertebrates.