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Related Experiment Videos

Microevolution in Perugia: isonymy 1890-1990

A Rodríguez-Larralde1, G Formica, C Scapoli

  • 1Laboratory of Human Genetics, IVIC, Caracas, Venezuela.

Annals of Human Biology
|May 1, 1993
PubMed
Summary

Perugia

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Area of Science:

  • Population genetics
  • Onomastics
  • Demography

Background:

  • Surname distribution provides insights into population history and migration patterns.
  • Understanding demographic shifts requires analyzing surname diversity across different birth cohorts and origins.

Purpose of the Study:

  • To analyze surname distribution in Perugia by age and place of birth.
  • To compare surname diversity between immigrants and natives, and across different birth decades.
  • To compare Perugia's surname richness with Ferrara Province.

Main Methods:

  • Estimation of Fisher's alpha and Karlin-McGregor's v for surname diversity.
  • Log-log regression analysis of surname distributions.
  • Calculation of Euclidean distance and Lasker's coefficient of relationship between birth cohorts.

Main Results:

  • Perugia exhibited significantly higher surname richness in immigrants compared to natives.
  • A minimum in surname diversity among Perugia natives born between 1921-1930 was observed, potentially linked to WWI.
  • Perugia showed greater surname richness than Ferrara Province across all analyzed decades.
  • Recent immigration (post-1960s) dynamics differed between Perugia and Ferrara.

Conclusions:

  • Surname diversity analysis reveals distinct demographic histories for native and immigrant populations in Perugia.
  • Historical events, such as WWI, can impact surname diversity within a population.
  • Comparative analysis with Ferrara highlights regional differences in surname richness and immigration trends.

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