title: Opportunity for natural selection among five population groups of Manipur, North East India.
abstract: 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.
authors.affiliation: Department of Anthropology, Rajiv Gandhi University, Arunachal Pradesh, India.
authors.forename: M
authors.initials: M
authors.lastname: Asghar
authors.affiliation: Department of Anthropology, Manipur University, Manipur, India.
authors.forename: S Y
authors.initials: SY
authors.lastname: Meitei
authors.affiliation: Department of Anthropology, University of Delhi, Delhi, India.
authors.forename: Y
authors.initials: Y
authors.lastname: Luxmi
authors.affiliation: Department of Anthropology, Manipur University, Manipur, India.
authors.forename: N
authors.initials: N
authors.lastname: Achoubi
authors.affiliation: Department of Anthropology, University of Delhi, Delhi, India.
authors.forename: K S
authors.initials: KS
authors.lastname: Meitei
authors.affiliation: Department of Anthropology, University of Delhi, Delhi, India.
authors.forename: B
authors.initials: B
authors.lastname: Murry
authors.affiliation: Department of Anthropology, University of Delhi, Delhi, India.
authors.forename: M P
authors.initials: MP
authors.lastname: Sachdeva
authors.affiliation: Department of Anthropology, University of Delhi, Delhi, India.
authors.forename: K N
authors.initials: KN
authors.lastname: Saraswathy
mesh_terms: D000885:Anthropology, Physical; D044466:Asian People / Q000706:statistics & numerical data*; D005260:Female; D005298:Fertility / Q000502:physiology*; D006801:Humans; D007194:India; D008875:Middle Aged; D012641:Selection, Genetic; D012959:Socioeconomic Factors