Energetic and biomechanical constraints on animal migration distance
Energetic and biomechanical constraints on animal migration distance
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DOI：
10.1111/j.1461-0248.2011.01714.x
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发表时间：
2012-02-01
期刊：
影响因子：
8.8
通讯作者：
Gillooly, James F.
中科院分区：
文献类型：
--
作者：
Hein, Andrew M.;Hou, Chen;Gillooly, James F.
动物迁徙是大自然的伟大奇迹之一，但决定迁徙距离的因素仍然知之甚少。本文提出了一个新的动物迁徙的定量模型，并用它来描述步行、游泳和飞行迁徙动物的最大迁徙距离。该模型结合了生物力学和代谢缩放，以显示最大迁移距离如何受到每种旅行模式的身体大小的约束。该模型还表明，步行和游泳的移民所走过的身体长度的数量应该是近似不变的身体大小。来自200多种候鸟、哺乳动物、鱼类和无脊椎动物的数据支持该模型的核心结论，即体型大小通过对新陈代谢和运动成本的影响，驱动物种之间最大迁移距离的变化。该模型提供了一个新的工具，以加强对生态和迁移的演变的一般理解。
Animal migration is one of the great wonders of nature, but the factors that determine how far migrants travel remain poorly understood. We present a new quantitative model of animal migration and use it to describe the maximum migration distance of walking, swimming and flying migrants. The model combines biomechanics and metabolic scaling to show how maximum migration distance is constrained by body size for each mode of travel. The model also indicates that the number of body lengths travelled by walking and swimming migrants should be approximately invariant of body size. Data from over 200 species of migratory birds, mammals, fish, and invertebrates support the central conclusion of the model that body size drives variation in maximum migration distance among species through its effects on metabolism and the cost of locomotion. The model provides a new tool to enhance general understanding of the ecology and evolution of migration.