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latitudinalandclimaticdistributionsof3dcraniofacialfeaturesamongholocenepopulations
Pan Lei1; Wei Dong2; Wu Xiujie1
2014
发表期刊sciencechinaearthsciences
ISSN1674-7313
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
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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.
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