Department of Zoology and Physical Anthropology, Complutense University of Madrid, Spain.
J Biosoc Sci. 2013 Jan;45(1):79-93. doi: 10.1017/S0021932012000363. Epub 2012 Jul 6.
The present analysis compares the distribution of surnames by means of spatial autocorrelation analysis in the Spain-Portugal border region. The Spanish National Institute of Statistics provides a database of surnames of residents in the western Spanish provinces of Zamora, Salamanca, Cáceres, Badajoz and Huelva. The Spanish and Portuguese patterns of surname distribution were established according to various geographic axes. The results obtained show a low diversity of surnames in this region - especially in the centre - which can be explained by the absence of any major geographic barriers, with the exception of the mountain ranges between hydrographic basins, and by the presence of traditional roads that have existed since Roman times. The latter have resulted in a constant migratory flow over short-median distances, which, as can be deduced from the surnames, fits two north/south territorial axes running parallel to the border between Spain and Portugal. The distribution patterns of Portuguese and Spanish surnames differ with regard to their frequencies in the five provinces studied, which can be attributed to their respective historical, economic and social conditions. It is concluded that the border delimiting these two countries has affected the migratory flow, thereby conditioning the demographic and genetic structure of the western Spanish regions.
本分析通过空间自相关分析比较了西班牙-葡萄牙边境地区姓氏的分布。西班牙国家统计局提供了西班牙西部省份萨莫拉、萨拉曼卡、卡塞雷斯、巴达霍斯和韦尔瓦的居民姓氏数据库。根据不同的地理轴，确定了西班牙和葡萄牙的姓氏分布模式。研究结果表明，该地区姓氏的多样性较低——尤其是在中心地带——这可以用缺乏任何重大地理障碍来解释，除了流域之间的山脉，以及自罗马时代以来就存在的传统道路。后者导致了短-中距离的持续迁徙流，这可以从姓氏中推断出来，姓氏与平行于西班牙和葡萄牙边界的两条南北向的领土轴相吻合。在研究的五个省份中，葡萄牙和西班牙姓氏的分布模式在频率上存在差异，这可以归因于它们各自的历史、经济和社会条件。结论是，两国之间的边界限制了迁徙流，从而影响了西班牙西部地区的人口和遗传结构。
