Do 'helpers at the nest' increase their parents' reproductive success?
Article Abstract:
This article examines the concept of offspring helping care for their parents' young and the potential of this help encouraging reproduction among the parents, applied to human communities. Research among Berber women in Southern Morocco show that household helpers increase fertility scores and improve survival rate of younger offspring; among humans help includes housework and light agricultural work and does not apply specifically to eldest daughters.
Publication Name: American Journal of Human Biology
Subject: Biological sciences
ISSN: 1042-0533
Year: 2001
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Study of GM Immunoglobulin allotypic system in Berbers and Arabs from Morocco
Article Abstract:
A study of GM immunoglobulin allotypic system in Berbers and Arabs from Morocco is presented. Moroccan populations have heterogeneous GM profiles with high frequencies of GM haplotypes in Europeans and relatively high frequencies of GM haplotypes in sub-Saharans.
Publication Name: American Journal of Human Biology
Subject: Biological sciences
ISSN: 1042-0533
Year: 2006
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Preference for sons and sex ratio in two non-western societies
Article Abstract:
A study was conducted to compare differences in survival as indicators of parental care according to a child's sex and across three economic strata which are poor, medium and high. The results suggest that despite the social valorization of male progeny no differences in parental care according to sex occur, or that their magnitude is not great enough to contrast the survival of sons and daughters.
Publication Name: American Journal of Human Biology
Subject: Biological sciences
ISSN: 1042-0533
Year: 2006
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