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Population structure in the western Pyrenees: II. Migration, the frequency of consanguineous marriage and inbreeding, 1877 to 1915

Published online by Cambridge University Press:  31 July 2008

Andrew Abelson
Affiliation:
University of Aberdeen, Department of Anatomy, Marischal College, Aberdeen*

Extract

In an earlier paper (Abelson, 1978) it was suggested that relationships between population density, migration, and the frequency of consanguineous marriage depended on variation in the social class composition of populations. For two valleys in the western Pyrenees, it was found that migration distances are shorter in areas with lower population density and that this could in part be attributed to the effects of social class independently of the occupations of the population (Abelson, 1979). The present paper investigates further the relationships between migration, the frequency of consanguineous marriage and inbreeding in the Roncal valley in Navarre, Spain, for the period 1877–1915. The Roncal valley contains seven villages, each a separate administrative unit. Almost all the total population of 3900 live in these nucleated villages and there are few isolated households. The area of the valley is 420 km2, and the population density 9·28 inhabitants/km2.

Type
Research Article
Copyright
Copyright © 1980, Cambridge University Press

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References

Abelson, A.E. (1976) Population Structure in a Pyrenean Village: Effects of Social Class Assortative Mating and Migration. PhD thesis, The Pennsylvania State University, USA.Google Scholar
Abelson, A. (1978). Population structure in the western Pyrenees: social class, migration and the frequency of consanguineous marriage, 1850 to 1910. Ann. hum. Biol. 5, 165.Google Scholar
Abelson, A. (1979) Population structure in the western Pyrenees: I. Population density, social class composition and migration. J. biosoc. Sci. 11, 353.Google Scholar
Bodmer, W.F. & Cavalli-Sforza, L.L. (1968) A migration matrix analysis for the study of random genetic drift. Genetics, 59, 565.Google Scholar
Cavalli-Sforza, L.L. (1958) Some data on the genetic structure of populations. In: Proceedings of the Xth International Congress of Genetics, Vol. 1, p. 389. Toronto University Press, Toronto.Google Scholar
Hajnal, J. (1963) Concepts of random mating and the frequency of consanguineous marriages. Proc. R. Soc. B 159, 125Google Scholar
Nei, M. & Imaizumi, Y. (1966) Genetic structure of human populations. II. Differentiations of blood groups. Gene frequencies among isolated populations. Heredity, 21, 183, 344.Google Scholar
Saugstad, L.F. (1977) The relationship between inbreeding and population density in Norway. Ann. hum. Genet. 40, 331.Google Scholar