House mouse dispersal in Iron Age Spain: a geometric morphometrics appraisal
House mouse dispersal in Iron Age Spain: a geometric morphometrics appraisal
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西班牙铁器时代家鼠的扩散：几何形态计量学评估
DOI：
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发表时间：
2011
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通讯作者：
J. Vigne
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作者：
S. Valenzuela;M. Baylac;T. Cucchi;J. Vigne
在铁器时代，地中海的海上贸易增加，特别是随着腓尼基人和希腊殖民地在西地中海的扩张。这些人类活动的一个副作用是非自愿的离散物种，如家鼠（Mus musculus arteriticus）。一个考古层可追溯到公元前4世纪，来自西班牙地中海沿岸的一个伊比利亚村庄，其中包含大量可靠的小型哺乳动物。这一层，很可能有家鼠的存在。为了定量评估其丰度，我们使用椭圆傅立叶分析的第一下磨牙轮廓的几何形态测量方法。我们还增加了阿尔及利亚小鼠（小鼠spretus）和家鼠之间的歧视的权力相结合的降维方法与不同的验证程序。年龄、性别和地理来源对下磨牙轮廓的形状和形式的相对重要性也进行了调查。研究结果表明，在公元前一千年，在伊比利亚村庄周围的景观中，家鼠的存在和统治地位，在它到达西地中海盆地后仅仅几个世纪。考虑到不同地中海种群的交叉验证线性判别函数表明，摩洛哥和法国是阿尔及利亚小鼠最可能的地理起源，突尼斯是西班牙东北部家鼠的起源。© 2011 The Linnean Society of伦敦，Biological Journal of the Linnean Society，2011，102，483-497。
During the Iron Age, sea trade in the Mediterranean increased, particularly with the expansion of Phoenician and Greek colonies in the Western Mediterranean. A side effect of these human movements was the involuntary dispersion of commensal species, such as the house mouse (Mus musculus domesticus). One archaeological layer dated from the 4th Century BC, coming from an Iberian village located in the Mediterranean coast of Spain, contained a large and reliable accumulation of small mammals. The presence of the house mouse was highly suspected within this layer. To assess its abundance quantitatively, we used a geometric morphometrics approach of the first lower molar contour using elliptical Fourier analysis. We also increased the power of the discrimination between the Algerian mouse (Mus spretus) and the house mouse by combining a dimension reduction approach together with different validation procedures. The relative importance of age, sex, and geographical origin onto the shape and form of the lower molar contour was also investigated. The results obtained demonstrate the presence and the dominance of the house mouse in the landscape surrounding the Iberian village in the 1st Millennium BC, only a few centuries after its arrival in the Western Mediterranean Basin. A cross-validated linear discriminant function considering different Mediterranean populations suggest Morocco and France as the most probable geographical origins for the Algerian mouse, and Tunisia for the origin of house mice in North-Eastern Spain. © 2011 The Linnean Society of London, Biological Journal of the Linnean Society, 2011, 102, 483–497.