Changes in morphology of human populations due to migration and selection.

Anthropological characteristics of 115 young Israeli-born male Jews (18-25 years), offspring of immigrants from Russia and Poland, are described. The morphological changes in the young group are compared with a sample of 1914 from the "parent" group, and with two non-Jewish European groups--1547 in the 18-25 year age range and 3711 in the 40-60 age range. The results indicate a "migrational effect" acting in young migrant offspring as expressed in higher anthropological values. Statistically significant differences were observed among migrants and the original stationary population. A model is proposed for predicting the expected rate of variation of morphological parameters in the first generation of migrants.