Resumen de Relaciones entre parroquias del Delta del Ebro a partir del estudio de los apellidos
M. Esparza, C. García Moro, Domingo Isaac Toja Santillana, M. Hernández
In the current work genetic distances have been estimated between populations using surname frequencies found on the matrimonial records of four parishes of the Ebro Delta (Tarragona), belonging to the 1939-1995 period. Different methods have been used to analyze the surnames: The Lasker coefficient, the Weiss genotypic identity probability, the Relethford coefficient and the Relethford distance. The diversity of surnames in each parish has also been analyzed using both the Shannon-Weaver index and the R parameter of Margalef. The evolution of all these coefficients during the period of study has been considered as well. The results obtained show a close relation among the parished of the North bank, la Cava and Jesús i Maria, that differ clearly from the South bank.
