My Science - Blog / Mein Naturwissenschaftsblog

Hopefully some interesting bits of information extracted from science and non-fiction literature. (For historical reasons there are some poems scattered throughout this blog.) Sachthemen und Sachtexte. (Historisch finden sich auf diesem Blog auch einige Gedichte und Aphorismen.) [Just collecting some exciting bits of information here.] [Eine Sammlung von interessanten Texten, Fragen und Antworten will das hier sein. Nicht mehr, aber auch nicht weniger.]

Mittwoch, 1. Januar 2014

An Association Between the Kinship and Fertility of Human Couples

An Association Between the Kinship and Fertility of Human Couples
Agnar Helgason et al.; 2008

Abstract

Previous studies have reported that related human couples tend to produce more children than unrelated couples but have been unable to determine whether this difference is biological or stems from socioeconomic variables. Our results, drawn from all known couples of the Icelandic population born between 1800 and 1965, show a significant positive association between kinship and fertility, with the greatest reproductive success observed for couples related at the level of third and fourth cousins. Owing to the relative socioeconomic homogeneity of Icelanders, and the observation of highly significant differences in the fertility of couples separated by very fine intervals of kinship, we conclude that this association is likely to have a biological basis.

See also: http://www.sciencemag.org/content/322/5908/1634.2.full.pdf
(Comment on “An Association Between the Kinship and Fertility of Human Couples” - Rodrigo Labouriau and António Amorim; 2008)

[Thanks @ Tomás]

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