THE EVOLUTION OF NASAL TURBINATES AND MAMMALIAN ENDOTHERMY
THE EVOLUTION OF NASAL TURBINATES AND MAMMALIAN ENDOTHERMY
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DOI：
10.1017/s0094837300012197
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发表时间：
1992-12-01
期刊：
影响因子：
2.7
通讯作者：
HILLENIUS, WJ
中科院分区：
文献类型：
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作者：
HILLENIUS, WJ
复杂的鼻甲骨与减少沙漠哺乳动物的呼吸水分流失有关，以前曾被描述为对干旱条件的适应。然而，复杂的鼻甲骨在几乎所有的哺乳动物中都有发现。这里提出的实验数据表明，鼻甲骨也大大减少呼吸水损失的五种小哺乳动物相对中温环境。这些数据支持的结论是，鼻甲骨并没有演变主要是为了适应特定的环境条件，但在高通风率，典型的所有哺乳动物。复杂的鼻甲骨似乎是哺乳动物的一个古老的属性，可能起源于哺乳动物的Therapsid祖先，与通风率升高和恒温动物的进化有关。
Complex nasal turbinal bones are associated with reduction of respiratory water loss in desert mammals and have previously been described as an adaptation to xeric conditions. However, complex turbinates are found in virtually all mammals. Experimental data presented here indicate that turbinates also substantially reduce respiratory water loss in five species of small mammals from relatively mesic environments. The data support the conclusion that turbinates did not evolve primarily as an adaptation to particular environmental conditions, but in relation to high ventilation rates, typical of all mammals. Complex turbinates appear to be an ancient attribute of mammals and may have originated among the therapsid ancestors of mammals, in relation to elevated ventilation rates and the evolution of endothermy.