On the massive legs of a Moa (Pachyornis elephantopus, Dinornithes)

On the massive legs of a Moa (Pachyornis elephantopus, Dinornithes)
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恐鸟(Pachyorniselephanopus,恐龙科)巨大的腿上

DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
R. Alexander
R. Alexander
中科院分区:
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文献类型:
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作者:
R. Alexander

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现已灭绝的帕奇鸟是一种巨大的鸟类,腿骨非常厚实。这些都经过了衡量,以评估它们的实力。一个数学模型被用来计算当帕奇奥尼斯奔跑时,一定作用在他们身上的力。因此,研究表明,作用在它们身上的压力在大小上类似于现代鸟类和哺乳动物的骨骼所经历的压力(在紧张的活动中)。然而,与胫骨相比,股骨和颧骨似乎不成比例地坚固。
Pachyornis, which is extinct, was a huge bird with massively thick leg bones. These have been measured, to assess their strength. A mathematical model is used to calculate the forces that must have acted on them, when Pachyornis ran. Hence it is shown that the stresses likely to have acted on them are similar in magnitude to the stresses experienced (in stenuous activities) by bones of modem birds and mammals. The femur and tarsometatanus, however, seem disproportionately strong in comparison with the tibiotanus.
小型哺乳动物和双足鸟类的骨强度:安全因素会随着体型的变化而变化吗?
DOI: 10.1242/jeb.98.1.289
发表时间: 1982
期刊: The Journal of experimental biology
影响因子: --
作者:
Biewener,AA
通讯作者: Biewener,AA