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Titolo:
BROTHER-SISTER MARRIAGE IN ROMAN EGYPT
Autore:
SCHEIDEL W;
Indirizzi:
UNIV CAMBRIDGE DARWIN COLL CAMBRIDGE CB3 9EU ENGLAND
Titolo Testata:
Journal of Biosocial Science
fascicolo: 3, volume: 29, anno: 1997,
pagine: 361 - 371
SICI:
0021-9320(1997)29:3<361:BMIRE>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOUTH-INDIA; REPRODUCTIVE WASTAGE; CONSANGUINEOUS MARRIAGES; PARENTAL CONSANGUINITY; TRIBAL POPULATION; GENETIC LOAD; MORTALITY; MATINGS; FERTILITY; CHILDREN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Citazioni:
68
Recensione:
Indirizzi per estratti:
Citazione:
W. Scheidel, "BROTHER-SISTER MARRIAGE IN ROMAN EGYPT", Journal of Biosocial Science, 29(3), 1997, pp. 361-371

Abstract

According to official census returns from Roman Egypt (first to thirdcenturies CE) preserved on papyrus, 23.5% of all documented marriagesin the Arsinoites district in the Fayum (n = 102) were between brothers and sisters. In the second century CE, the rates were 37% in the city of Arsinoe and 18.9% in the surrounding villages. Documented pedigrees suggest a minimum mean level of inbreeding equivalent to a coefficient of inbreeding of 0.0975 in second century CE Arsinoe. Undocumented sources of inbreeding and an estimate based on the frequency of close-kin unions (corrected downwards to 30% for Arsinoe) indicate a mean coefficient of inbreeding of F = 0.15-0.20 in Arsinoe and of F = 0.10-0.15 in the villages at the end of the second century CE. These valuesare several times as high as any other documented levels of inbreeding. A schematic estimate of inbreeding depression in the offspring of full sibling couples indicates that fertility in these families had to be 20-50% above average to attain reproduction at replacement level. In the absence of information on the amount of genetic load in this population, this estimate may be too high.

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Documento generato il 28/11/20 alle ore 04:17:40