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2022-03-04
摘要翻译:
新陈代谢是生命的基础。生物体的新陈代谢速率(单位时间内产生的能量)比生物体的质量增长慢,这对生命组织有重要影响。这种现象,当考虑到不同的分类群时,被称为种间异速标度。在介绍生物力学模型、生理学和进化原理的基础上,我们发现并验证了其基本机制。计算的哺乳动物、爬行动物、鱼类和鸟类的最大和基础代谢率异速指数理论值与实验数据一致。这证明了所发现的机制的协同作用确实是这一现象的原因,异速标度更确切地说是食物链中生物个体进化和生理适应的统计效应,无论是从新陈代谢还是生物力学限制的角度来看。由于生物力学特性的改变和成功繁殖所需的某些功能要求(如相对于猎物的速度优势),体型的增加伴随着整体新陈代谢率的增加。一方面,生物必须可靠地获得足够的食物。另一方面,生物力学和新陈代谢的优势都不能太强--否则,食物链可能会被破坏。这两种需求的反作用在食物链中建立了动态平衡,再加上生物力学的限制,解释了异速缩放现象。一旦得到承认,这一发现将在生态学、进化、生理学和其他研究以及实际应用中产生许多重要的影响。
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英文标题:
《Interspecific allometric scaling of multicellular organisms as an
  evolutionary process of food chain creation, influenced by mechanical
  constraints》
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作者:
Yuri K. Shestopaloff
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最新提交年份:
2017
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分类信息:

一级分类:Quantitative Biology        数量生物学
二级分类:Other Quantitative Biology        其他定量生物学
分类描述:Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要:
  Metabolism is a foundation of life. Metabolic rate of organisms (amount of energy produced per unit time) increases slower than organisms' mass, which has important consequences for life organization. This phenomenon, when considered across different taxa, is called interspecific allometric scaling. Here, on the basis of introduced biomechanical models, physiological and evolutionary principles, we discover and validate its fundamental mechanisms. Calculated theoretical values of allometric exponents for the maximal and basal metabolic rates, for mammals, reptiles, fish and birds, correspond to experimental data. This proves that the cooperative action of discovered mechanisms, indeed, is the cause of this phenomenon, and that allometric scaling is rather a statistical effect of individual evolutionary and physiological adaptations of organisms within the food chain, both in terms of metabolism and biomechanical constraints. The increase in size is coupled with the increase of the overall metabolic rate due to the change of biomechanical characteristics and the need to meet certain functional requirements for a successful reproduction (like the speed advantage over the prey). On one hand, organisms have to reliably acquire sufficient food for that. On the other hand, neither biomechanical nor metabolic advantage can be too strong - otherwise, the food chain could be destroyed. The counteraction of these two needs establishes a dynamic balance in the food chain, which, together with biomechanical constraints, explains the phenomenon of allometric scaling. Once acknowledged, this discovery will have numerous important implications in ecological, evolutionary, physiological and other studies, as well as in practical applications.
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PDF链接:
https://arxiv.org/pdf/1612.00098
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