Annals of Human Biology
Volume 17, Issue 1, 1990, Pages 7-18
Isonymy in emigrants from Ferrara in 1981-1988 (Article)
Barrai I.* ,
Formica G. ,
Barale R. ,
Scapoli C. ,
Canella R. ,
Beretta M.
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a
Institute of Zoology, University of Ferrara, Italy
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b
Computing Center, Town Municipality of Ferrara, Italy
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c
Institute of Zoology, University of Ferrara, Italy
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d
Institute of Zoology, University of Ferrara, Italy
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e
Institute of Zoology, University of Ferrara, Italy
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f
Institute of Zoology, University of Ferrara, Italy
Abstract
The distribution of surnames in the emigrants from the population of the town of Ferrara in the period 1981-88 was studied by sex and by place of birth, namely Ferrara versus other places. Emigrants born in Ferrara were defined as first time emigrants and those who had previously immigrated to Ferrara were defined second time emigrants. It was found that random isonymy is smaller in second time emigrants. Sex ratio is not different in the two types of emigrants. As indicators of the abundance of surnames in a distribution, the common ecological indexes derived from entropy were used and compared between types of emigrants. It was found that redundancy, as isonymy, is larger in first time emigrants than in second time emigrants. It was observed that second time emigrants were consistently and significantly older than first time emigrants, and that a considerable fraction of them, (22·4%) returned to their place of birth. A sexual dimorphism in age at emigration was observed in second time emigrants, females emigrating at an older age than males. © 1990 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
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Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0025198584&doi=10.1080%2f03014469000000742&partnerID=40&md5=fb89f90f3c1d0f1e67b7dedcceefc912
DOI: 10.1080/03014469000000742
ISSN: 03014460
Cited by: 16
Original Language: English