Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)

Mostrar todas las versiones(2)

Although migrations have been thoroughly studied, still little is known about colonization processes. This study analyses the demographic and genetic structures of a colonization process. All the Welsh migrants to the Chubut (Argentina) from year 1865 until year 1925 were identified and their contri...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Crognier, Emile, Caratini, Alicia Liliana, Carnese, Francisco R., Dahinten, Silvia Lucrecia, Gavirati, Marcelo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Naturales
Antropología
antropología biológica
Patagonia (Argentina)
demografía
Welsh
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/18519
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-18519
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Antropología
antropología biológica
Patagonia (Argentina)
demografía
Welsh
spellingShingle Ciencias Naturales
Antropología
antropología biológica
Patagonia (Argentina)
demografía
Welsh
Crognier, Emile
Caratini, Alicia Liliana
Carnese, Francisco R.
Dahinten, Silvia Lucrecia
Gavirati, Marcelo
Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)
topic_facet Ciencias Naturales
Antropología
antropología biológica
Patagonia (Argentina)
demografía
Welsh
description Although migrations have been thoroughly studied, still little is known about colonization processes. This study analyses the demographic and genetic structures of a colonization process. All the Welsh migrants to the Chubut (Argentina) from year 1865 until year 1925 were identified and their contribution to the gene pool of the colony estimated from genealogies. Three waves of immigration which arrived in 1865, 1874 and 1886 were the main population component, besides a high fertility. In 1868 the population was principally composed of reproductive adults. In 1876, young children and reproductive adults dominated. In 1895 it was a typical young population. In 1920 an ageing trend was already perceptible. The origins of the settlers were so varied that the colony may be considered a sampling at random in the Welsh gene pool. 40% of the founders did not contribute genes. The settling of the Welsh in the Chubut presents two characteristics that may be common to any colonization process: (1) the evolution of the demographic structure from a predominantly young adult male composition to a balance in both sexes and ages. (2) The ‘genetic cost’ resulting from the loss of the genes of some of the founders.
format Articulo
Articulo
author Crognier, Emile
Caratini, Alicia Liliana
Carnese, Francisco R.
Dahinten, Silvia Lucrecia
Gavirati, Marcelo
author_facet Crognier, Emile
Caratini, Alicia Liliana
Carnese, Francisco R.
Dahinten, Silvia Lucrecia
Gavirati, Marcelo
author_sort Crognier, Emile
title Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)
title_short Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)
title_full Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)
title_fullStr Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)
title_full_unstemmed Demographic history and genetic structure of the Welsh settlement in Patagonia (1865-1920)
title_sort demographic history and genetic structure of the welsh settlement in patagonia (1865-1920)
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/18519
work_keys_str_mv AT crognieremile demographichistoryandgeneticstructureofthewelshsettlementinpatagonia18651920
AT caratinialicialiliana demographichistoryandgeneticstructureofthewelshsettlementinpatagonia18651920
AT carnesefranciscor demographichistoryandgeneticstructureofthewelshsettlementinpatagonia18651920
AT dahintensilvialucrecia demographichistoryandgeneticstructureofthewelshsettlementinpatagonia18651920
AT gaviratimarcelo demographichistoryandgeneticstructureofthewelshsettlementinpatagonia18651920
bdutipo_str Repositorios
_version_ 1764820462998650880

Ejemplares similares