Esparza Mireia, García-Moro Clara, Hernández Miquel
Secció d'Antropologia, Departament de Biologia Animal, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain.
Am J Hum Biol. 2006 Nov-Dec;18(6):849-52. doi: 10.1002/ajhb.20563.
The aim of the study was to evaluate the levels of inbreeding calculated from isonymy with its random (Fr) and nonrandom (Fn) components, and repeated pairs of surnames (RP2) and their random component (RP2r) in the Ebro River Delta region (Tarragona, Spain). This region is made up of four parishes, and data correspond to the period 1939-1995. The global results are on the same levels as observed in other studies, but the values obtained in 3 of 4 parishes are relatively high. The Fn global value is higher than Fr, as opposed to what happens in each parish, so there is a clear Wahlund effect of subdivision of the region into parishes. Among the parishes there is a clear differentiation for Amposta, with values much lower than for the rest, due to the behavior of this population, i.e., a high immigration rate.
本研究的目的是评估在埃布罗河三角洲地区（西班牙塔拉戈纳）通过姓氏相同计算得出的近亲繁殖水平及其随机（Fr）和非随机（Fn）成分，以及重复姓氏对（RP2）及其随机成分（RP2r）。该地区由四个教区组成，数据对应1939 - 1995年期间。总体结果与其他研究中观察到的处于相同水平，但四个教区中有三个教区获得的值相对较高。Fn的总体值高于Fr，这与每个教区的情况相反，因此该地区划分为教区存在明显的瓦伦德效应。在各教区中，安波斯塔有明显差异，其值远低于其他教区，这归因于该人群的行为，即高移民率。
