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Natural selection associated with birth weight V. The secular relaxation of the stabilizing component
Author(s) -
ULIZZI L.,
TERRENATO L.
Publication year - 1987
Publication title -
annals of human genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.537
H-Index - 77
eISSN - 1469-1809
pISSN - 0003-4800
DOI - 10.1111/j.1469-1809.1987.tb00873.x
Subject(s) - secular variation , selection (genetic algorithm) , component (thermodynamics) , birth weight , relaxation (psychology) , natural selection , stabilizing selection , demography , biology , physics , medicine , thermodynamics , pregnancy , genetics , computer science , artificial intelligence , sociology
Summary The secular trend of stabilizing selection on birth weight has been studied during the last decades in 17 countries, representative of America, Asia and Europe. A relaxation of the intensity of selection is regularly observed, which can probably be attributed to a progressive reduction of the environmental component of birth weight variance.