International Journal of Anthropology

, Volume 4, Issue 1–2, pp 119–124 | Cite as

Consanguinity: Geographical variation and temporal evolution in the North of the Iberian peninsula, 1918–1968 (León, Spain)

  • P. Gomez Gomez


We studied 71.740 marriage certificates from the Diocese of León, Northern Spain, between the years 1918 and 1968. If VI degree marriages are considered 6.27% of the total were among relatives. The inbreeding coefficient is very near the average for other Spanish populations from the same period (F=0.002). Within the area studied, levels of inbreeding are higher in rural than in urban zones and slightly higher in the montaña than in the meseta. Within the montaña it is higher in the non-mining zone of the North than in the mining zone of the South.

Throughout the entire period under study there is a continuous tendency towards a decrease in inbreeding which is sharper in the rural than in the urban zone. Consequently there is a convergence of values in recent times. This tendency appears later in rural populations in the center of the peninsula than in those of northern Spain, and in the Spanish population later than in other European countries.

Key words

Consanguinity Inbreeding coefficient Urban Rural zones 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Armino M. L. & Gomez P., 1987.Niveles de endogamia y consanguinidad en la población d elos Montes de Pas (Cantabria, España). Actas V Cong. Español Antrop. Biol., León 275–284.Google Scholar
  2. Calderon R., 1980.Niveles de consanguinidad y densidad de población en la comarca natural de La Jara (1990–1979). Act. II Simp. Antrop. Biol. de España, Oviedo.Google Scholar
  3. Gomez, P., 1977.Bioantropología e influencia geográfica en el noroeste de León. Ed. Exc. Dip. de Leòn y C.S.I.C., Leòn.Google Scholar
  4. Gomez P., 1982.Estudio de la evolución de la consanguinidad y endogamia en el periodo 1918–1968. Rev. Tierras de León, 48: 97–109.Google Scholar
  5. Gomez P. et al., 1987.Análisis de la consanguinidad en la población pixueta (Cudillero, Asturias)., Actas V cong. Español de Antrop. Biol., Leòn, 297–306.Google Scholar
  6. Moroni A., 1964.Evoluzione della frequenza dei matrimoni consanguinei in Italia. Atti Ass. Gent. Ital., 7: 94–103.Google Scholar
  7. Pinto Cistierna J. &Moroni A., 1979.Estudio sobre la consanguinidad en España. Biológica, XL: 3–20.Google Scholar
  8. Pinto-Cistierna J., Zeo G. &Moroni A., 1979.Consanguinity in Spain 1911–1943: General methodology, behavior of demographic variables, and regional differences. Soc. Biol., 26 (1): 55–71.Google Scholar
  9. Sutter J. &Goux J. M., 1964.Decline of consanguinieous marriages in France from 1926 to 1958. Eugen. Quart., 11/3: 127–140.Google Scholar
  10. Valls A., 1966.Avelques données nouvelles sur la consanguinité en Espagne, Journ. Genet. Hum., 15: 121–123.Google Scholar
  11. Valls A., 1967.Consanguinieous marriages in Spanish population. Acta genet. Staic. Med. (Human Heredity), 17: 112–119.Google Scholar
  12. Valls A., 1978.Contribución al conocimiento de la consanguinidad en España I. Una muestra de población gallega. Perspectivas de la Antropologia española, Ed. Akal.Google Scholar

Copyright information

© Editrice II Sedicesimo 1989

Authors and Affiliations

  • P. Gomez Gomez
    • 1
  1. 1.Laboratorio de Antropología Dpto. de Biología de Organismos y SistemasUniversidad de OviedoEspaña

Personalised recommendations