Scaling of body temperature in mammals and birds
Scaling of body temperature in mammals and birds
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DOI：
10.1111/j.1365-2435.2007.01341.x
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发表时间：
2008-02-01
影响因子：
5.2
通讯作者：
Rothery, Peter
中科院分区：
文献类型：
--
作者：
Clarke, Andrew;Rothery, Peter
我们使用596种哺乳动物和490种鸟类的数据，检验了吸热动物体温标度与系统发育相关的变化。在较高类别的哺乳动物中，有袋类(阳性)、蕨类和钩纲(均为阴性)的体温标度具有统计学意义上的显著标度。在至少有10个物种数据的哺乳动物目中，有三个目(食肉目、棘齿目和偶蹄目)鳞片为负，一个目(翼手目)为正，其他七个目不显著。体温的升高与肠道发酵的存在没有明显的关系。正如预期的那样，单孔动物的体温最低，但在有袋类动物中，双原生动物的平均体温高于几个胎盘类群；因此，传统的体温排序顺序为单孔动物-有袋类-胎盘动物是有误导性的。在鸟类中，标度关系仅对环齿目动物(强负)和雀形目动物(弱正)显著。当考虑到系统发育影响时，哺乳动物总体上体温与体温之间没有显著关系，但鸟类体温与体温之间存在相反且几乎显著的关系。本研究表明，哺乳动物和鸟类的体重、体温和代谢率之间存在通过生态学调节的复杂关系。
We examine variation associated with phylogeny in the scaling of body temperature in endotherms, using data from 596 species of mammal and 490 species of bird.Among higher groups of mammals there is statistically significant scaling of body temperature with mass in Marsupialia (positive), Ferae and Ungulata (both negative). In mammalian orders where data are available for at least 10 species, scaling is negative in three orders (Carnivora, Erinaceomorpha and Artiodactyla), positive in one (Chiroptera) and not significant in seven others. There is no relationship apparent between the scaling of body temperature and the existence of gut fermentation. As expected, monotremes exhibit the lowest body temperatures, but within marsupials diprotodonts have a mean body temperature higher than several placental groups; the traditional ranking of body temperatures in the sequence monotremes - marsupials - placentals is thus misleading.In birds, scaling relationships are significant only for Ciconiiformes (strongly negative) and Passeriformes (weakly positive).When allowance is made for phylogenetic effects, there is no significant relationship between temperature in body mass in mammals overall, but an inverse and almost significant relationship in birds.This study indicates a complex relationship between body mass, body temperature and metabolic rate in mammals and birds, mediated through ecology.