Anthropologischer Anzeiger; Bericht uber die biologisch-anthropologische Literatur · 2014
Opportunity for natural selection among five population groups of Manipur, North East India.
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Asghar M, Meitei S Y, Luxmi Y, Achoubi N, Meitei K S, Murry B, Sachdeva M P, Saraswathy K N
Аннотация
Opportunity for natural selection among five population groups of Manipur in comparison with other North East Indian population has been studied. Crow's index as well as Johnston and Kensinger's index for natural selection were calculated based on differential fertility and mortality. The mortality component was found to be lower compared to fertility component in all the populations which may attribute to comparatively improved and easily accessible health care facilities. However, different selection pressures, artificial and natural, seem to be influencing the selection intensity through induced abortion and spontaneous abortion among the two non-tribal migrant groups: Bamon and Muslims, respectively. This study highlights the probable interaction of artificial and natural selection in determining the evolutionary fate of any population group.