latitudinalandclimaticdistributionsof3dcraniofacialfeaturesamongholocenepopulations

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	latitudinalandclimaticdistributionsof3dcraniofacialfeaturesamongholocenepopulations
	Pan Lei 1; Wei Dong 2; Wu Xiujie 1
	2014
发表期刊	sciencechinaearthsciences
ISSN	1674-7313
卷号	57 期号:7 页码:1692
摘要	The geographical and climatic patterning in craniofacial morphology among recent hominids has been regarded as relatively reliable evidence of environmental adaptation and natural selection, which is largely attributed to thermoregulation. However, the relative influence of genetic and environmental factors on craniofacial features is unclear. Our study employed 3D laser scanning techniques to evaluate the association between geographical (latitude), climatic (annual temperature) factors, and 3D craniofacial measurements in 18 recent populations through bivariate correlation analysis. Significant correlations were found among braincase surface area, zygomatic bone surface area, cranial-facial index (facial surface area relative to braincase surface area) and local temperature, and a clear latitudinal gradient was also found in variation of braincase surface area. No significant correlations were found between zygomatic bone surface area, cranial-facial index and latitude. Our analysis supports the idea that the braincase functions as a radiator and is closely related to direct sunlight. We also suggest that absolute/relative craniofacial surface area varies consistently with predictions derived from Bergmann’s Rule. The mosaic craniofacial traits of American Indians may reflect retention of cold-derived, ancestral features, as well as a response to a slightly warmer climate. Because different craniofacial regions preserve environmental/genetic signatures differentially, caution is suggested when craniofacial anatomy is used for phylogenetic reconstruction and functional-morphological analysis.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/14219
专题	中国科学院古脊椎动物与古人类研究所
作者单位	1.中国科学院古脊椎动物与古人类研究所 2.吉林大学
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Pan Lei,Wei Dong,Wu Xiujie. latitudinalandclimaticdistributionsof3dcraniofacialfeaturesamongholocenepopulations[J]. sciencechinaearthsciences,2014,57(7):1692.
APA	Pan Lei,Wei Dong,&Wu Xiujie.(2014).latitudinalandclimaticdistributionsof3dcraniofacialfeaturesamongholocenepopulations.sciencechinaearthsciences,57(7),1692.
MLA	Pan Lei,et al."latitudinalandclimaticdistributionsof3dcraniofacialfeaturesamongholocenepopulations".sciencechinaearthsciences 57.7(2014):1692.